Re: [PATCH 1/2] btrfs: avoid Wmaybe-uninitialized warnings

From: Arnd Bergmann
Date: Mon Jul 10 2023 - 15:13:20 EST

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On Mon, Jul 10, 2023, at 18:55, David Sterba wrote:
> On Wed, Jul 05, 2023 at 04:01:08PM +0200, Arnd Bergmann wrote:
>> From: Arnd Bergmann <arnd@xxxxxxxx>
>>
>> The -Wmaybe-uninitialized warning option in gcc produces tons of false
>> positive warnings when KASAN is enabled, as that turns off some required
>> optimizations.
>
> Which version of gcc produces the warnings? I have KASAN enabled and
> don't see any warnings, with gcc 13. Making the warning conditional
> would effectively turn it off for me which means I can't catch the
> warnings early. We do get reports from various build bots with
> various arch/compiler combinations and fix the warnings.
>
> If there's a know minimum compiler version where there are no reports
> (or reasonably small nubmer to fix) then I'd rather make the condition
> bassed on that, neither on KASAN nor any similar feature for that matter.

As far as I can tell, this happens with every version of gcc.
What I think happens is that with any combination of compiler
flags and version, the code generation changes a little, so you
end up getting the warnings in different places, and one can
easily avoid them by adding fake initializers for a particular
configuration but not for other configurations.

If I run 100 randconfig builds with KASAN and btrfs force-enabled,
using gcc-13.1.0 like

for i in `seq 100` ; do
make -skj16 randconfig fs/btrfs/
done

building for arm32 (see below), I get maybe 20 failed builds, but
for x86 this is lower, maybe 2. I had attempted to work around
each one of the ones I saw, but ended up with a huge patch to
cover all architectures and compilers in random versions.

Arnd

/home/arnd/arm-soc/fs/btrfs/scrub.c: In function 'scrub_simple_mirror.constprop':
/home/arnd/arm-soc/fs/btrfs/scrub.c:2014:16: error: 'ret' may be used uninitialized in this function [-Werror=maybe-uninitialized]
2014 | return ret;
| ^~~
KCONFIG_SEED=0xFF336D86
KCONFIG_SEED=0x8B05C4B2
KCONFIG_SEED=0x64310838
KCONFIG_SEED=0x3DB885EC
KCONFIG_SEED=0x983AF756
KCONFIG_SEED=0xEC0D51EC
KCONFIG_SEED=0xB1B553E8
KCONFIG_SEED=0x98E3861
KCONFIG_SEED=0xAC9172F6
KCONFIG_SEED=0xA2325450
KCONFIG_SEED=0x20E308F6
KCONFIG_SEED=0xC238FBF0
KCONFIG_SEED=0x791A0953
KCONFIG_SEED=0x55CE08D2
KCONFIG_SEED=0x6653C680
KCONFIG_SEED=0x52503183
KCONFIG_SEED=0x4D293618
KCONFIG_SEED=0x558D9E5B
/home/arnd/arm-soc/fs/btrfs/tree-log.c: In function 'btrfs_log_prealloc_extents':
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4828:23: error: 'start_slot' may be used uninitialized [-Werror=maybe-uninitialized]
4828 | ret = copy_items(trans, inode, dst_path, path,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4829 | start_slot, ins_nr, 1, 0);
| ~~~~~~~~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4725:13: note: 'start_slot' was declared here
4725 | int start_slot;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/tree-log.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0xBFB8CB20
/home/arnd/arm-soc/fs/btrfs/tree-log.c: In function 'btrfs_log_prealloc_extents':
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4828:23: error: 'start_slot' may be used uninitialized [-Werror=maybe-uninitialized]
4828 | ret = copy_items(trans, inode, dst_path, path,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4829 | start_slot, ins_nr, 1, 0);
| ~~~~~~~~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4725:13: note: 'start_slot' was declared here
4725 | int start_slot;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/tree-log.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0xB104EEBA
KCONFIG_SEED=0x80695891
KCONFIG_SEED=0xD82997F0
In file included from /home/arnd/arm-soc/include/asm-generic/rwonce.h:26,
from ./arch/arm/include/generated/asm/rwonce.h:1,
from /home/arnd/arm-soc/include/linux/compiler.h:246,
from /home/arnd/arm-soc/include/linux/export.h:5,
from /home/arnd/arm-soc/include/linux/linkage.h:7,
from /home/arnd/arm-soc/include/linux/kernel.h:17,
from /home/arnd/arm-soc/fs/btrfs/ioctl.c:6:
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_tree_search' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:1741:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'sk' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_tree_search':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:1734:39: note: 'sk' declared here
1734 | struct btrfs_ioctl_search_key sk;
| ^~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_tree_search_v2' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:1773:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_tree_search_v2':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:1764:43: note: 'args' declared here
1764 | struct btrfs_ioctl_search_args_v2 args;
| ^~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_set_fslabel' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4127:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'label' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_set_fslabel':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:4121:14: note: 'label' declared here
4121 | char label[BTRFS_LABEL_SIZE];
| ^~~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_set_features' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4271:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'flags' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_set_features':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:4263:42: note: 'flags' declared here
4263 | struct btrfs_ioctl_feature_flags flags[2];
| ^~~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_space_info' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:2993:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'space_args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_space_info':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:2975:39: note: 'space_args' declared here
2975 | struct btrfs_ioctl_space_args space_args;
| ^~~~~~~~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_encoded_write.constprop' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4488:7:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_encoded_write.constprop':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:4448:44: note: 'args' declared here
4448 | struct btrfs_ioctl_encoded_io_args args;
| ^~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/ioctl.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0xAA4AD4E2
In file included from /home/arnd/arm-soc/include/asm-generic/rwonce.h:26,
from ./arch/arm/include/generated/asm/rwonce.h:1,
from /home/arnd/arm-soc/include/linux/compiler.h:246,
from /home/arnd/arm-soc/include/linux/export.h:5,
from /home/arnd/arm-soc/include/linux/linkage.h:7,
from /home/arnd/arm-soc/include/linux/kernel.h:17,
from /home/arnd/arm-soc/fs/btrfs/ioctl.c:6:
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_tree_search' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:1741:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'sk' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_tree_search':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:1734:39: note: 'sk' declared here
1734 | struct btrfs_ioctl_search_key sk;
| ^~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_tree_search_v2' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:1773:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_tree_search_v2':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:1764:43: note: 'args' declared here
1764 | struct btrfs_ioctl_search_args_v2 args;
| ^~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_set_fslabel' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4127:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'label' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_set_fslabel':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:4121:14: note: 'label' declared here
4121 | char label[BTRFS_LABEL_SIZE];
| ^~~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_set_features' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4271:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'flags' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_set_features':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:4263:42: note: 'flags' declared here
4263 | struct btrfs_ioctl_feature_flags flags[2];
| ^~~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_space_info' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:2993:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'space_args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_space_info':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:2975:39: note: 'space_args' declared here
2975 | struct btrfs_ioctl_space_args space_args;
| ^~~~~~~~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_encoded_write.constprop' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4488:7:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_encoded_write.constprop':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:4448:44: note: 'args' declared here
4448 | struct btrfs_ioctl_encoded_io_args args;
| ^~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/ioctl.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0x6DA7D48C
In file included from /home/arnd/arm-soc/include/asm-generic/rwonce.h:26,
from ./arch/arm/include/generated/asm/rwonce.h:1,
from /home/arnd/arm-soc/include/linux/compiler.h:246,
from /home/arnd/arm-soc/include/linux/export.h:5,
from /home/arnd/arm-soc/include/linux/linkage.h:7,
from /home/arnd/arm-soc/include/linux/kernel.h:17,
from /home/arnd/arm-soc/fs/btrfs/ioctl.c:6:
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_space_info' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:2993:6,
inlined from 'btrfs_ioctl' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4610:10:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'space_args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:2975:39: note: 'space_args' declared here
2975 | struct btrfs_ioctl_space_args space_args;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/ioctl.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0x26CA5A79
In file included from /home/arnd/arm-soc/include/asm-generic/rwonce.h:26,
from ./arch/arm/include/generated/asm/rwonce.h:1,
from /home/arnd/arm-soc/include/linux/compiler.h:246,
from /home/arnd/arm-soc/include/linux/export.h:5,
from /home/arnd/arm-soc/include/linux/linkage.h:7,
from /home/arnd/arm-soc/include/linux/kernel.h:17,
from /home/arnd/arm-soc/fs/btrfs/ioctl.c:6:
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_space_info' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:2993:6,
inlined from 'btrfs_ioctl' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4610:10:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'space_args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:2975:39: note: 'space_args' declared here
2975 | struct btrfs_ioctl_space_args space_args;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/ioctl.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0x2D2D44C
KCONFIG_SEED=0xD984DF1C
KCONFIG_SEED=0x9A330457
In file included from /home/arnd/arm-soc/include/asm-generic/rwonce.h:26,
from ./arch/arm/include/generated/asm/rwonce.h:1,
from /home/arnd/arm-soc/include/linux/compiler.h:246,
from /home/arnd/arm-soc/include/linux/export.h:5,
from /home/arnd/arm-soc/include/linux/linkage.h:7,
from /home/arnd/arm-soc/include/linux/kernel.h:17,
from /home/arnd/arm-soc/fs/btrfs/ioctl.c:6:
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_tree_search' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:1741:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'sk' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_tree_search':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:1734:39: note: 'sk' declared here
1734 | struct btrfs_ioctl_search_key sk;
| ^~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_tree_search_v2' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:1773:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_tree_search_v2':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:1764:43: note: 'args' declared here
1764 | struct btrfs_ioctl_search_args_v2 args;
| ^~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_set_fslabel' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4127:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'label' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_set_fslabel':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:4121:14: note: 'label' declared here
4121 | char label[BTRFS_LABEL_SIZE];
| ^~~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_encoded_write.constprop' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4488:7:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_encoded_write.constprop':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:4448:44: note: 'args' declared here
4448 | struct btrfs_ioctl_encoded_io_args args;
| ^~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_space_info' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:2993:6,
inlined from 'btrfs_ioctl' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4610:10:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'space_args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:2975:39: note: 'space_args' declared here
2975 | struct btrfs_ioctl_space_args space_args;
| ^~~~~~~~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_set_features' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4271:6,
inlined from 'btrfs_ioctl' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4677:10:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'flags' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:4263:42: note: 'flags' declared here
4263 | struct btrfs_ioctl_feature_flags flags[2];
| ^~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/ioctl.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0xB1096B7E
In file included from /home/arnd/arm-soc/include/asm-generic/rwonce.h:26,
from ./arch/arm/include/generated/asm/rwonce.h:1,
from /home/arnd/arm-soc/include/linux/compiler.h:246,
from /home/arnd/arm-soc/include/linux/export.h:5,
from /home/arnd/arm-soc/include/linux/linkage.h:7,
from /home/arnd/arm-soc/include/linux/kernel.h:17,
from /home/arnd/arm-soc/fs/btrfs/ioctl.c:6:
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_tree_search' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:1741:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'sk' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_tree_search':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:1734:39: note: 'sk' declared here
1734 | struct btrfs_ioctl_search_key sk;
| ^~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_tree_search_v2' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:1773:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_tree_search_v2':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:1764:43: note: 'args' declared here
1764 | struct btrfs_ioctl_search_args_v2 args;
| ^~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_set_fslabel' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4127:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'label' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_set_fslabel':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:4121:14: note: 'label' declared here
4121 | char label[BTRFS_LABEL_SIZE];
| ^~~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_encoded_write.constprop' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4488:7:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_encoded_write.constprop':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:4448:44: note: 'args' declared here
4448 | struct btrfs_ioctl_encoded_io_args args;
| ^~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_space_info' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:2993:6,
inlined from 'btrfs_ioctl' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4610:10:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'space_args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:2975:39: note: 'space_args' declared here
2975 | struct btrfs_ioctl_space_args space_args;
| ^~~~~~~~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_set_features' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4271:6,
inlined from 'btrfs_ioctl' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4677:10:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'flags' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:4263:42: note: 'flags' declared here
4263 | struct btrfs_ioctl_feature_flags flags[2];
| ^~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/ioctl.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0xAB63E698
KCONFIG_SEED=0xF60D4D80
KCONFIG_SEED=0x84787E6E
KCONFIG_SEED=0x39B76E26
KCONFIG_SEED=0x7266F10
KCONFIG_SEED=0xD08875AC
KCONFIG_SEED=0x4D8842C3
KCONFIG_SEED=0x29B7A4AC
KCONFIG_SEED=0xFED01A8F
KCONFIG_SEED=0x593CCD90
KCONFIG_SEED=0x9E8F768D
KCONFIG_SEED=0xB723335B
KCONFIG_SEED=0x6CE2500C
/home/arnd/arm-soc/fs/btrfs/tree-log.c: In function 'btrfs_log_prealloc_extents':
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4828:23: error: 'start_slot' may be used uninitialized [-Werror=maybe-uninitialized]
4828 | ret = copy_items(trans, inode, dst_path, path,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4829 | start_slot, ins_nr, 1, 0);
| ~~~~~~~~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4725:13: note: 'start_slot' was declared here
4725 | int start_slot;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/tree-log.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0xD26AE43C
/home/arnd/arm-soc/fs/btrfs/tree-log.c: In function 'btrfs_log_prealloc_extents':
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4828:23: error: 'start_slot' may be used uninitialized [-Werror=maybe-uninitialized]
4828 | ret = copy_items(trans, inode, dst_path, path,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4829 | start_slot, ins_nr, 1, 0);
| ~~~~~~~~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4725:13: note: 'start_slot' was declared here
4725 | int start_slot;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/tree-log.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0xF0EE3781
KCONFIG_SEED=0x2659EA00
KCONFIG_SEED=0x7A984178
KCONFIG_SEED=0x196A6EC8
KCONFIG_SEED=0xBBE97CCB
/home/arnd/arm-soc/fs/btrfs/tree-log.c: In function 'btrfs_log_prealloc_extents':
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4828:23: error: 'start_slot' may be used uninitialized [-Werror=maybe-uninitialized]
4828 | ret = copy_items(trans, inode, dst_path, path,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4829 | start_slot, ins_nr, 1, 0);
| ~~~~~~~~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4725:13: note: 'start_slot' was declared here
4725 | int start_slot;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/tree-log.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0xCA63D258
/home/arnd/arm-soc/fs/btrfs/tree-log.c: In function 'btrfs_log_prealloc_extents':
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4828:23: error: 'start_slot' may be used uninitialized [-Werror=maybe-uninitialized]
4828 | ret = copy_items(trans, inode, dst_path, path,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4829 | start_slot, ins_nr, 1, 0);
| ~~~~~~~~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4725:13: note: 'start_slot' was declared here
4725 | int start_slot;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/tree-log.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0xE360B828
KCONFIG_SEED=0x8BB52CA0
KCONFIG_SEED=0x9703EBEB
KCONFIG_SEED=0xC05C41F5
KCONFIG_SEED=0x8BBA3CC8
KCONFIG_SEED=0xCC046259
KCONFIG_SEED=0xED4A6408
KCONFIG_SEED=0x8194C34E
KCONFIG_SEED=0x3A029C2A
KCONFIG_SEED=0xAEC7F728
KCONFIG_SEED=0x6B0212AD
KCONFIG_SEED=0xA88C8291
KCONFIG_SEED=0x3F5C676C
/home/arnd/arm-soc/fs/btrfs/tree-log.c: In function 'btrfs_log_prealloc_extents':
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4828:23: error: 'start_slot' may be used uninitialized [-Werror=maybe-uninitialized]
4828 | ret = copy_items(trans, inode, dst_path, path,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4829 | start_slot, ins_nr, 1, 0);
| ~~~~~~~~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4725:13: note: 'start_slot' was declared here
4725 | int start_slot;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/tree-log.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0x2271B29B
/home/arnd/arm-soc/fs/btrfs/tree-log.c: In function 'btrfs_log_prealloc_extents':
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4828:23: error: 'start_slot' may be used uninitialized [-Werror=maybe-uninitialized]
4828 | ret = copy_items(trans, inode, dst_path, path,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4829 | start_slot, ins_nr, 1, 0);
| ~~~~~~~~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4725:13: note: 'start_slot' was declared here
4725 | int start_slot;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/tree-log.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0x6D7C92C0
KCONFIG_SEED=0xE127F39C
KCONFIG_SEED=0x30223BC0
KCONFIG_SEED=0xFB06665A
KCONFIG_SEED=0xF3AEAD98
In file included from /home/arnd/arm-soc/include/asm-generic/rwonce.h:26,
from ./arch/arm/include/generated/asm/rwonce.h:1,
from /home/arnd/arm-soc/include/linux/compiler.h:246,
from /home/arnd/arm-soc/include/linux/export.h:5,
from /home/arnd/arm-soc/include/linux/linkage.h:7,
from /home/arnd/arm-soc/include/linux/kernel.h:17,
from /home/arnd/arm-soc/fs/btrfs/ioctl.c:6:
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_space_info' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:2993:6,
inlined from 'btrfs_ioctl' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4610:10:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'space_args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:2975:39: note: 'space_args' declared here
2975 | struct btrfs_ioctl_space_args space_args;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/ioctl.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0xF2F46C48
In file included from /home/arnd/arm-soc/include/asm-generic/rwonce.h:26,
from ./arch/arm/include/generated/asm/rwonce.h:1,
from /home/arnd/arm-soc/include/linux/compiler.h:246,
from /home/arnd/arm-soc/include/linux/export.h:5,
from /home/arnd/arm-soc/include/linux/linkage.h:7,
from /home/arnd/arm-soc/include/linux/kernel.h:17,
from /home/arnd/arm-soc/fs/btrfs/ioctl.c:6:
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_space_info' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:2993:6,
inlined from 'btrfs_ioctl' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4610:10:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'space_args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:2975:39: note: 'space_args' declared here
2975 | struct btrfs_ioctl_space_args space_args;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/ioctl.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0xE6BC74C7
KCONFIG_SEED=0xC1487C18
KCONFIG_SEED=0xD4D4EAC8
/home/arnd/arm-soc/fs/btrfs/tree-log.c: In function 'btrfs_log_prealloc_extents':
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4828:23: error: 'start_slot' may be used uninitialized [-Werror=maybe-uninitialized]
4828 | ret = copy_items(trans, inode, dst_path, path,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4829 | start_slot, ins_nr, 1, 0);
| ~~~~~~~~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4725:13: note: 'start_slot' was declared here
4725 | int start_slot;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/tree-log.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0xE1003AAC
/home/arnd/arm-soc/fs/btrfs/tree-log.c: In function 'btrfs_log_prealloc_extents':
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4828:23: error: 'start_slot' may be used uninitialized [-Werror=maybe-uninitialized]
4828 | ret = copy_items(trans, inode, dst_path, path,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4829 | start_slot, ins_nr, 1, 0);
| ~~~~~~~~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4725:13: note: 'start_slot' was declared here
4725 | int start_slot;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/tree-log.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remadeKCONFIG_SEED=0x85E79AC8
KCONFIG_SEED=0x94D3F039
KCONFIG_SEED=0x9D4C8E40
KCONFIG_SEED=0x60B769E3
KCONFIG_SEED=0xC386D86
KCONFIG_SEED=0x835F94A2
KCONFIG_SEED=0xC0F21885
KCONFIG_SEED=0xC50925AF
KCONFIG_SEED=0xFA8DDB2F
KCONFIG_SEED=0x56B76368
KCONFIG_SEED=0x394DADE7
KCONFIG_SEED=0xE11A07BB
KCONFIG_SEED=0xE2D409F8
KCONFIG_SEED=0x3B78F3C8
KCONFIG_SEED=0xF9ED4A5C
KCONFIG_SEED=0xE16D18FC
KCONFIG_SEED=0x97A0B953
KCONFIG_SEED=0xDBF867A6
KCONFIG_SEED=0xB9D4F056
KCONFIG_SEED=0x8C44E1A

WARNING: unmet direct dependencies detected for SM_GCC_8450
Depends on [n]: COMMON_CLK [=y] && COMMON_CLK_QCOM [=m] && (ARM64 || COMPILE_TEST [=n])
Selected by [m]:
- SM_VIDEOCC_8450 [=m] && COMMON_CLK [=y] && COMMON_CLK_QCOM [=m]

WARNING: unmet direct dependencies detected for SM_GCC_8550
Depends on [n]: COMMON_CLK [=y] && COMMON_CLK_QCOM [=m] && (ARM64 || COMPILE_TEST [=n])
Selected by [m]:
- SM_VIDEOCC_8550 [=m] && COMMON_CLK [=y] && COMMON_CLK_QCOM [=m]
KCONFIG_SEED=0xFF336D86
KCONFIG_SEED=0x8B05C4B2
KCONFIG_SEED=0x64310838
KCONFIG_SEED=0x3DB885EC
KCONFIG_SEED=0x983AF756
KCONFIG_SEED=0xEC0D51EC
KCONFIG_SEED=0xB1B553E8
KCONFIG_SEED=0x98E3861
KCONFIG_SEED=0xAC9172F6
KCONFIG_SEED=0xA2325450
KCONFIG_SEED=0x20E308F6
KCONFIG_SEED=0xC238FBF0
KCONFIG_SEED=0x791A0953
KCONFIG_SEED=0x55CE08D2
KCONFIG_SEED=0x6653C680
KCONFIG_SEED=0x52503183
KCONFIG_SEED=0x4D293618
KCONFIG_SEED=0x558D9E5B
/home/arnd/arm-soc/fs/btrfs/tree-log.c: In function 'btrfs_log_prealloc_extents':
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4828:23: error: 'start_slot' may be used uninitialized [-Werror=maybe-uninitialized]
4828 | ret = copy_items(trans, inode, dst_path, path,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4829 | start_slot, ins_nr, 1, 0);
| ~~~~~~~~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4725:13: note: 'start_slot' was declared here
4725 | int start_slot;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/tree-log.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0xBFB8CB20
/home/arnd/arm-soc/fs/btrfs/tree-log.c: In function 'btrfs_log_prealloc_extents':
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4828:23: error: 'start_slot' may be used uninitialized [-Werror=maybe-uninitialized]
4828 | ret = copy_items(trans, inode, dst_path, path,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4829 | start_slot, ins_nr, 1, 0);
| ~~~~~~~~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4725:13: note: 'start_slot' was declared here
4725 | int start_slot;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/tree-log.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0xB104EEBA
KCONFIG_SEED=0x80695891
KCONFIG_SEED=0xD82997F0
In file included from /home/arnd/arm-soc/include/asm-generic/rwonce.h:26,
from ./arch/arm/include/generated/asm/rwonce.h:1,
from /home/arnd/arm-soc/include/linux/compiler.h:246,
from /home/arnd/arm-soc/include/linux/export.h:5,
from /home/arnd/arm-soc/include/linux/linkage.h:7,
from /home/arnd/arm-soc/include/linux/kernel.h:17,
from /home/arnd/arm-soc/fs/btrfs/ioctl.c:6:
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_tree_search' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:1741:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'sk' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_tree_search':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:1734:39: note: 'sk' declared here
1734 | struct btrfs_ioctl_search_key sk;
| ^~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_tree_search_v2' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:1773:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_tree_search_v2':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:1764:43: note: 'args' declared here
1764 | struct btrfs_ioctl_search_args_v2 args;
| ^~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_set_fslabel' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4127:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'label' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_set_fslabel':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:4121:14: note: 'label' declared here
4121 | char label[BTRFS_LABEL_SIZE];
| ^~~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_set_features' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4271:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'flags' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_set_features':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:4263:42: note: 'flags' declared here
4263 | struct btrfs_ioctl_feature_flags flags[2];
| ^~~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_space_info' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:2993:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'space_args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_space_info':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:2975:39: note: 'space_args' declared here
2975 | struct btrfs_ioctl_space_args space_args;
| ^~~~~~~~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_encoded_write.constprop' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4488:7:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_encoded_write.constprop':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:4448:44: note: 'args' declared here
4448 | struct btrfs_ioctl_encoded_io_args args;
| ^~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/ioctl.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0xAA4AD4E2
In file included from /home/arnd/arm-soc/include/asm-generic/rwonce.h:26,
from ./arch/arm/include/generated/asm/rwonce.h:1,
from /home/arnd/arm-soc/include/linux/compiler.h:246,
from /home/arnd/arm-soc/include/linux/export.h:5,
from /home/arnd/arm-soc/include/linux/linkage.h:7,
from /home/arnd/arm-soc/include/linux/kernel.h:17,
from /home/arnd/arm-soc/fs/btrfs/ioctl.c:6:
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_tree_search' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:1741:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'sk' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_tree_search':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:1734:39: note: 'sk' declared here
1734 | struct btrfs_ioctl_search_key sk;
| ^~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_tree_search_v2' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:1773:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_tree_search_v2':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:1764:43: note: 'args' declared here
1764 | struct btrfs_ioctl_search_args_v2 args;
| ^~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_set_fslabel' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4127:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'label' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_set_fslabel':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:4121:14: note: 'label' declared here
4121 | char label[BTRFS_LABEL_SIZE];
| ^~~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_set_features' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4271:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'flags' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_set_features':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:4263:42: note: 'flags' declared here
4263 | struct btrfs_ioctl_feature_flags flags[2];
| ^~~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_space_info' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:2993:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'space_args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_space_info':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:2975:39: note: 'space_args' declared here
2975 | struct btrfs_ioctl_space_args space_args;
| ^~~~~~~~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_encoded_write.constprop' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4488:7:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_encoded_write.constprop':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:4448:44: note: 'args' declared here
4448 | struct btrfs_ioctl_encoded_io_args args;
| ^~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/ioctl.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0x6DA7D48C
In file included from /home/arnd/arm-soc/include/asm-generic/rwonce.h:26,
from ./arch/arm/include/generated/asm/rwonce.h:1,
from /home/arnd/arm-soc/include/linux/compiler.h:246,
from /home/arnd/arm-soc/include/linux/export.h:5,
from /home/arnd/arm-soc/include/linux/linkage.h:7,
from /home/arnd/arm-soc/include/linux/kernel.h:17,
from /home/arnd/arm-soc/fs/btrfs/ioctl.c:6:
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_space_info' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:2993:6,
inlined from 'btrfs_ioctl' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4610:10:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'space_args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:2975:39: note: 'space_args' declared here
2975 | struct btrfs_ioctl_space_args space_args;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/ioctl.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0x26CA5A79
In file included from /home/arnd/arm-soc/include/asm-generic/rwonce.h:26,
from ./arch/arm/include/generated/asm/rwonce.h:1,
from /home/arnd/arm-soc/include/linux/compiler.h:246,
from /home/arnd/arm-soc/include/linux/export.h:5,
from /home/arnd/arm-soc/include/linux/linkage.h:7,
from /home/arnd/arm-soc/include/linux/kernel.h:17,
from /home/arnd/arm-soc/fs/btrfs/ioctl.c:6:
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_space_info' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:2993:6,
inlined from 'btrfs_ioctl' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4610:10:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'space_args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:2975:39: note: 'space_args' declared here
2975 | struct btrfs_ioctl_space_args space_args;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/ioctl.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0x2D2D44C
KCONFIG_SEED=0xD984DF1C
KCONFIG_SEED=0x9A330457
In file included from /home/arnd/arm-soc/include/asm-generic/rwonce.h:26,
from ./arch/arm/include/generated/asm/rwonce.h:1,
from /home/arnd/arm-soc/include/linux/compiler.h:246,
from /home/arnd/arm-soc/include/linux/export.h:5,
from /home/arnd/arm-soc/include/linux/linkage.h:7,
from /home/arnd/arm-soc/include/linux/kernel.h:17,
from /home/arnd/arm-soc/fs/btrfs/ioctl.c:6:
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_tree_search' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:1741:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'sk' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_tree_search':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:1734:39: note: 'sk' declared here
1734 | struct btrfs_ioctl_search_key sk;
| ^~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_tree_search_v2' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:1773:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_tree_search_v2':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:1764:43: note: 'args' declared here
1764 | struct btrfs_ioctl_search_args_v2 args;
| ^~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_set_fslabel' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4127:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'label' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_set_fslabel':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:4121:14: note: 'label' declared here
4121 | char label[BTRFS_LABEL_SIZE];
| ^~~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_encoded_write.constprop' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4488:7:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_encoded_write.constprop':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:4448:44: note: 'args' declared here
4448 | struct btrfs_ioctl_encoded_io_args args;
| ^~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_space_info' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:2993:6,
inlined from 'btrfs_ioctl' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4610:10:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'space_args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:2975:39: note: 'space_args' declared here
2975 | struct btrfs_ioctl_space_args space_args;
| ^~~~~~~~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_set_features' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4271:6,
inlined from 'btrfs_ioctl' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4677:10:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'flags' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:4263:42: note: 'flags' declared here
4263 | struct btrfs_ioctl_feature_flags flags[2];
| ^~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/ioctl.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0xB1096B7E
In file included from /home/arnd/arm-soc/include/asm-generic/rwonce.h:26,
from ./arch/arm/include/generated/asm/rwonce.h:1,
from /home/arnd/arm-soc/include/linux/compiler.h:246,
from /home/arnd/arm-soc/include/linux/export.h:5,
from /home/arnd/arm-soc/include/linux/linkage.h:7,
from /home/arnd/arm-soc/include/linux/kernel.h:17,
from /home/arnd/arm-soc/fs/btrfs/ioctl.c:6:
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_tree_search' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:1741:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'sk' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_tree_search':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:1734:39: note: 'sk' declared here
1734 | struct btrfs_ioctl_search_key sk;
| ^~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_tree_search_v2' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:1773:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_tree_search_v2':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:1764:43: note: 'args' declared here
1764 | struct btrfs_ioctl_search_args_v2 args;
| ^~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_set_fslabel' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4127:6:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'label' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_set_fslabel':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:4121:14: note: 'label' declared here
4121 | char label[BTRFS_LABEL_SIZE];
| ^~~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_encoded_write.constprop' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4488:7:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl_encoded_write.constprop':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:4448:44: note: 'args' declared here
4448 | struct btrfs_ioctl_encoded_io_args args;
| ^~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_space_info' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:2993:6,
inlined from 'btrfs_ioctl' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4610:10:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'space_args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:2975:39: note: 'space_args' declared here
2975 | struct btrfs_ioctl_space_args space_args;
| ^~~~~~~~~~
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_set_features' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4271:6,
inlined from 'btrfs_ioctl' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4677:10:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'flags' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:4263:42: note: 'flags' declared here
4263 | struct btrfs_ioctl_feature_flags flags[2];
| ^~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/ioctl.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0xAB63E698
KCONFIG_SEED=0xF60D4D80
KCONFIG_SEED=0x84787E6E
KCONFIG_SEED=0x39B76E26
KCONFIG_SEED=0x7266F10
KCONFIG_SEED=0xD08875AC
KCONFIG_SEED=0x4D8842C3
KCONFIG_SEED=0x29B7A4AC
KCONFIG_SEED=0xFED01A8F
KCONFIG_SEED=0x593CCD90
KCONFIG_SEED=0x9E8F768D
KCONFIG_SEED=0xB723335B
KCONFIG_SEED=0x6CE2500C
/home/arnd/arm-soc/fs/btrfs/tree-log.c: In function 'btrfs_log_prealloc_extents':
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4828:23: error: 'start_slot' may be used uninitialized [-Werror=maybe-uninitialized]
4828 | ret = copy_items(trans, inode, dst_path, path,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4829 | start_slot, ins_nr, 1, 0);
| ~~~~~~~~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4725:13: note: 'start_slot' was declared here
4725 | int start_slot;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/tree-log.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0xD26AE43C
/home/arnd/arm-soc/fs/btrfs/tree-log.c: In function 'btrfs_log_prealloc_extents':
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4828:23: error: 'start_slot' may be used uninitialized [-Werror=maybe-uninitialized]
4828 | ret = copy_items(trans, inode, dst_path, path,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4829 | start_slot, ins_nr, 1, 0);
| ~~~~~~~~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4725:13: note: 'start_slot' was declared here
4725 | int start_slot;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/tree-log.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0xF0EE3781
KCONFIG_SEED=0x2659EA00
KCONFIG_SEED=0x7A984178
KCONFIG_SEED=0x196A6EC8
KCONFIG_SEED=0xBBE97CCB
/home/arnd/arm-soc/fs/btrfs/tree-log.c: In function 'btrfs_log_prealloc_extents':
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4828:23: error: 'start_slot' may be used uninitialized [-Werror=maybe-uninitialized]
4828 | ret = copy_items(trans, inode, dst_path, path,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4829 | start_slot, ins_nr, 1, 0);
| ~~~~~~~~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4725:13: note: 'start_slot' was declared here
4725 | int start_slot;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/tree-log.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0xCA63D258
/home/arnd/arm-soc/fs/btrfs/tree-log.c: In function 'btrfs_log_prealloc_extents':
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4828:23: error: 'start_slot' may be used uninitialized [-Werror=maybe-uninitialized]
4828 | ret = copy_items(trans, inode, dst_path, path,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4829 | start_slot, ins_nr, 1, 0);
| ~~~~~~~~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4725:13: note: 'start_slot' was declared here
4725 | int start_slot;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/tree-log.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0xE360B828
KCONFIG_SEED=0x8BB52CA0
KCONFIG_SEED=0x9703EBEB
KCONFIG_SEED=0xC05C41F5
KCONFIG_SEED=0x8BBA3CC8
KCONFIG_SEED=0xCC046259
KCONFIG_SEED=0xED4A6408
KCONFIG_SEED=0x8194C34E
KCONFIG_SEED=0x3A029C2A
KCONFIG_SEED=0xAEC7F728
KCONFIG_SEED=0x6B0212AD
KCONFIG_SEED=0xA88C8291
KCONFIG_SEED=0x3F5C676C
/home/arnd/arm-soc/fs/btrfs/tree-log.c: In function 'btrfs_log_prealloc_extents':
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4828:23: error: 'start_slot' may be used uninitialized [-Werror=maybe-uninitialized]
4828 | ret = copy_items(trans, inode, dst_path, path,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4829 | start_slot, ins_nr, 1, 0);
| ~~~~~~~~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4725:13: note: 'start_slot' was declared here
4725 | int start_slot;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/tree-log.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0x2271B29B
/home/arnd/arm-soc/fs/btrfs/tree-log.c: In function 'btrfs_log_prealloc_extents':
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4828:23: error: 'start_slot' may be used uninitialized [-Werror=maybe-uninitialized]
4828 | ret = copy_items(trans, inode, dst_path, path,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4829 | start_slot, ins_nr, 1, 0);
| ~~~~~~~~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4725:13: note: 'start_slot' was declared here
4725 | int start_slot;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/tree-log.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0x6D7C92C0
KCONFIG_SEED=0xE127F39C
KCONFIG_SEED=0x30223BC0
KCONFIG_SEED=0xFB06665A
KCONFIG_SEED=0xF3AEAD98
In file included from /home/arnd/arm-soc/include/asm-generic/rwonce.h:26,
from ./arch/arm/include/generated/asm/rwonce.h:1,
from /home/arnd/arm-soc/include/linux/compiler.h:246,
from /home/arnd/arm-soc/include/linux/export.h:5,
from /home/arnd/arm-soc/include/linux/linkage.h:7,
from /home/arnd/arm-soc/include/linux/kernel.h:17,
from /home/arnd/arm-soc/fs/btrfs/ioctl.c:6:
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_space_info' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:2993:6,
inlined from 'btrfs_ioctl' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4610:10:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'space_args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:2975:39: note: 'space_args' declared here
2975 | struct btrfs_ioctl_space_args space_args;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/ioctl.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0xF2F46C48
In file included from /home/arnd/arm-soc/include/asm-generic/rwonce.h:26,
from ./arch/arm/include/generated/asm/rwonce.h:1,
from /home/arnd/arm-soc/include/linux/compiler.h:246,
from /home/arnd/arm-soc/include/linux/export.h:5,
from /home/arnd/arm-soc/include/linux/linkage.h:7,
from /home/arnd/arm-soc/include/linux/kernel.h:17,
from /home/arnd/arm-soc/fs/btrfs/ioctl.c:6:
In function 'instrument_copy_from_user_before',
inlined from '_copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:148:3,
inlined from 'copy_from_user' at /home/arnd/arm-soc/include/linux/uaccess.h:183:7,
inlined from 'btrfs_ioctl_space_info' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:2993:6,
inlined from 'btrfs_ioctl' at /home/arnd/arm-soc/fs/btrfs/ioctl.c:4610:10:
/home/arnd/arm-soc/include/linux/kasan-checks.h:38:27: error: 'space_args' may be used uninitialized [-Werror=maybe-uninitialized]
38 | #define kasan_check_write __kasan_check_write
/home/arnd/arm-soc/include/linux/instrumented.h:129:9: note: in expansion of macro 'kasan_check_write'
129 | kasan_check_write(to, n);
| ^~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/include/linux/kasan-checks.h: In function 'btrfs_ioctl':
/home/arnd/arm-soc/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here
20 | bool __kasan_check_write(const volatile void *p, unsigned int size);
| ^~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/ioctl.c:2975:39: note: 'space_args' declared here
2975 | struct btrfs_ioctl_space_args space_args;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/ioctl.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0xE6BC74C7
KCONFIG_SEED=0xC1487C18
KCONFIG_SEED=0xD4D4EAC8
/home/arnd/arm-soc/fs/btrfs/tree-log.c: In function 'btrfs_log_prealloc_extents':
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4828:23: error: 'start_slot' may be used uninitialized [-Werror=maybe-uninitialized]
4828 | ret = copy_items(trans, inode, dst_path, path,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4829 | start_slot, ins_nr, 1, 0);
| ~~~~~~~~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4725:13: note: 'start_slot' was declared here
4725 | int start_slot;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/tree-log.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0xE1003AAC
/home/arnd/arm-soc/fs/btrfs/tree-log.c: In function 'btrfs_log_prealloc_extents':
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4828:23: error: 'start_slot' may be used uninitialized [-Werror=maybe-uninitialized]
4828 | ret = copy_items(trans, inode, dst_path, path,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4829 | start_slot, ins_nr, 1, 0);
| ~~~~~~~~~~~~~~~~~~~~~~~~~
/home/arnd/arm-soc/fs/btrfs/tree-log.c:4725:13: note: 'start_slot' was declared here
4725 | int start_slot;
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/arnd/arm-soc/scripts/Makefile.build:243: fs/btrfs/tree-log.o] Error 1
make[6]: Target 'fs/btrfs/' not remade because of errors.
make[5]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs/btrfs] Error 2
make[5]: Target 'fs/btrfs/' not remade because of errors.
make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:477: fs] Error 2
make[4]: Target 'fs/btrfs/' not remade because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0x2BD778F8
KCONFIG_SEED=0xEC319E0E
KCONFIG_SEED=0xED473D40
KCONFIG_SEED=0x2F7A7070
KCONFIG_SEED=0xA58A4FCA
because of errors.
make[3]: *** [/home/arnd/arm-soc/Makefile:1934: .] Error 2
make[3]: Target 'fs/btrfs/' not remade because of errors.
make[2]: *** [/home/arnd/arm-soc/Makefile:234: __sub-make] Error 2
make[2]: Target 'fs/btrfs/' not remade because of errors.
make[1]: *** [Makefile:234: __sub-make] Error 2
make[1]: Target 'fs/btrfs/' not remade because of errors.
make: *** [makefile:163: fs/btrfs/] Error 2
KCONFIG_SEED=0x2BD778F8
KCONFIG_SEED=0xEC319E0E
KCONFIG_SEED=0xED473D40
KCONFIG_SEED=0x2F7A7070
KCONFIG_SEED=0xA58A4FCA

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