[tip:tmp.tmp2 308/364] include/linux/compat.h:548:13: warning: 'struct io_event' declared inside parameter list will not be visible outside of this definition or declaration

From: kernel test robot
Date: Sun Jun 13 2021 - 19:18:19 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git tmp.tmp2
head: adcceb5eb7aee38e4a9c15bdf599655f0e1b1324
commit: 120c6121adeaa43021433af501c9a1111c70d8f8 [308/364] sched/headers, compat: Simplify <linux/compat.h>
config: powerpc-allyesconfig (attached as .config)
compiler: powerpc64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=120c6121adeaa43021433af501c9a1111c70d8f8
git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
git fetch --no-tags tip tmp.tmp2
git checkout 120c6121adeaa43021433af501c9a1111c70d8f8
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

from include/linux/sched.h:18,
from arch/powerpc/include/asm/compat.h:9,
from include/linux/compat.h:10,
from arch/powerpc/kernel/asm-offsets.c:14:
arch/powerpc/include/asm/book3s/64/hash.h: At top level:
arch/powerpc/include/asm/book3s/64/hash.h:248:22: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'hash__vmemmap_create_mapping'
248 | extern int __meminit hash__vmemmap_create_mapping(unsigned long start,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from arch/powerpc/include/asm/book3s/64/pgtable.h:297,
from arch/powerpc/include/asm/book3s/64/mmu-hash.h:20,
from arch/powerpc/include/asm/book3s/64/mmu.h:31,
from arch/powerpc/include/asm/mmu.h:402,
from arch/powerpc/include/asm/lppaca.h:46,
from arch/powerpc/include/asm/paca.h:17,
from arch/powerpc/include/asm/current.h:13,
from include/linux/sched.h:18,
from arch/powerpc/include/asm/compat.h:9,
from include/linux/compat.h:10,
from arch/powerpc/kernel/asm-offsets.c:14:
arch/powerpc/include/asm/book3s/64/radix.h:289:22: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'radix__vmemmap_create_mapping'
289 | extern int __meminit radix__vmemmap_create_mapping(unsigned long start,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from arch/powerpc/include/asm/book3s/64/mmu-hash.h:20,
from arch/powerpc/include/asm/book3s/64/mmu.h:31,
from arch/powerpc/include/asm/mmu.h:402,
from arch/powerpc/include/asm/lppaca.h:46,
from arch/powerpc/include/asm/paca.h:17,
from arch/powerpc/include/asm/current.h:13,
from include/linux/sched.h:18,
from arch/powerpc/include/asm/compat.h:9,
from include/linux/compat.h:10,
from arch/powerpc/kernel/asm-offsets.c:14:
arch/powerpc/include/asm/book3s/64/pgtable.h:1075:29: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'vmemmap_create_mapping'
1075 | static inline int __meminit vmemmap_create_mapping(unsigned long start,
| ^~~~~~~~~~~~~~~~~~~~~~
In file included from arch/powerpc/include/asm/mmu.h:402,
from arch/powerpc/include/asm/lppaca.h:46,
from arch/powerpc/include/asm/paca.h:17,
from arch/powerpc/include/asm/current.h:13,
from include/linux/sched.h:18,
from arch/powerpc/include/asm/compat.h:9,
from include/linux/compat.h:10,
from arch/powerpc/kernel/asm-offsets.c:14:
arch/powerpc/include/asm/book3s/64/mmu.h:210:27: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'early_init_mmu'
210 | static inline void __init early_init_mmu(void)
| ^~~~~~~~~~~~~~
In file included from arch/powerpc/include/asm/compat.h:9,
from include/linux/compat.h:10,
from arch/powerpc/kernel/asm-offsets.c:14:
include/linux/sched.h:459:26: error: field 'irqtrace' has incomplete type
459 | struct irqtrace_events irqtrace;
| ^~~~~~~~
include/linux/sched.h:475:20: error: array type has incomplete element type 'struct held_lock'
475 | struct held_lock held_locks[MAX_LOCK_DEPTH];
| ^~~~~~~~~~
In file included from include/linux/compat.h:10,
from arch/powerpc/kernel/asm-offsets.c:14:
arch/powerpc/include/asm/compat.h:42:2: error: unknown type name 'old_time32_t'
42 | old_time32_t st_atime;
| ^~~~~~~~~~~~
arch/powerpc/include/asm/compat.h:44:2: error: unknown type name 'old_time32_t'
44 | old_time32_t st_mtime;
| ^~~~~~~~~~~~
arch/powerpc/include/asm/compat.h:46:2: error: unknown type name 'old_time32_t'
46 | old_time32_t st_ctime;
| ^~~~~~~~~~~~
arch/powerpc/include/asm/compat.h: In function 'arch_compat_alloc_user_space':
arch/powerpc/include/asm/compat.h:99:25: error: implicit declaration of function 'task_thread'; did you mean 'start_thread'? [-Werror=implicit-function-declaration]
99 | struct pt_regs *regs = task_thread(current).regs;
| ^~~~~~~~~~~
| start_thread
arch/powerpc/include/asm/compat.h:99:45: error: request for member 'regs' in something not a structure or union
99 | struct pt_regs *regs = task_thread(current).regs;
| ^
In file included from include/linux/thread_info.h:52,
from include/linux/uio.h:10,
from include/linux/socket.h:8,
from include/uapi/linux/if.h:25,
from include/linux/compat.h:9,
from arch/powerpc/kernel/asm-offsets.c:14:
arch/powerpc/include/asm/thread_info.h:167:26: error: implicit declaration of function 'test_thread_flag'; did you mean 'test_thread_local_flags'? [-Werror=implicit-function-declaration]
167 | #define is_32bit_task() (test_thread_flag(TIF_32BIT))
| ^~~~~~~~~~~~~~~~
arch/powerpc/include/asm/compat.h:107:7: note: in expansion of macro 'is_32bit_task'
107 | if (!is_32bit_task())
| ^~~~~~~~~~~~~
In file included from arch/powerpc/kernel/asm-offsets.c:14:
include/linux/compat.h: At top level:
include/linux/compat.h:253:23: error: field 'ru_utime' has incomplete type
253 | struct old_timeval32 ru_utime;
| ^~~~~~~~
include/linux/compat.h:254:23: error: field 'ru_stime' has incomplete type
254 | struct old_timeval32 ru_stime;
| ^~~~~~~~
include/linux/compat.h: In function 'put_compat_sigset':
include/linux/compat.h:431:9: error: implicit declaration of function 'copy_to_user'; did you mean 'copy_to_iter'? [-Werror=implicit-function-declaration]
431 | return copy_to_user(compat, &v, size) ? -EFAULT : 0;
| ^~~~~~~~~~~~
| copy_to_iter
include/linux/compat.h: At top level:
>> include/linux/compat.h:548:13: warning: 'struct io_event' declared inside parameter list will not be visible outside of this definition or declaration
548 | struct io_event __user *events,
| ^~~~~~~~
include/linux/compat.h:554:13: warning: 'struct io_event' declared inside parameter list will not be visible outside of this definition or declaration
554 | struct io_event __user *events,
| ^~~~~~~~
>> include/linux/compat.h:838:18: warning: 'struct file_handle' declared inside parameter list will not be visible outside of this definition or declaration
838 | struct file_handle __user *handle,
| ^~~~~~~~~~~
include/linux/compat.h:847:51: error: unknown type name 'rwf_t'
847 | compat_ulong_t vlen, u32 pos_low, u32 pos_high, rwf_t flags);
| ^~~~~
include/linux/compat.h:850:51: error: unknown type name 'rwf_t'
850 | compat_ulong_t vlen, u32 pos_low, u32 pos_high, rwf_t flags);
| ^~~~~
include/linux/compat.h:940:36: error: return type is an incomplete type
940 | static inline struct old_timeval32 ns_to_old_timeval32(s64 nsec)
| ^~~~~~~~~~~~~~~~~~~
include/linux/compat.h: In function 'ns_to_old_timeval32':
include/linux/compat.h:943:23: error: storage size of 'ctv' isn't known
943 | struct old_timeval32 ctv;
| ^~~
include/linux/compat.h:945:7: error: implicit declaration of function 'ns_to_kernel_old_timeval' [-Werror=implicit-function-declaration]
945 | tv = ns_to_kernel_old_timeval(nsec);
| ^~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compat.h:945:7: error: incompatible types when assigning to type 'struct __kernel_old_timeval' from type 'int'
include/linux/compat.h:949:9: error: 'return' with a value, in function returning void [-Werror=return-type]
949 | return ctv;
| ^~~
include/linux/compat.h:940:36: note: declared here
940 | static inline struct old_timeval32 ns_to_old_timeval32(s64 nsec)
| ^~~~~~~~~~~~~~~~~~~
include/linux/compat.h:943:23: warning: unused variable 'ctv' [-Wunused-variable]
943 | struct old_timeval32 ctv;
| ^~~
In file included from <command-line>:
include/asm-generic/preempt.h: In function 'preempt_count':
include/asm-generic/preempt.h:11:40: error: invalid type argument of '->' (have 'int')
11 | return READ_ONCE(current_thread_info()->preempt_count);
| ^~
include/linux/compiler_types.h:308:9: note: in definition of macro '__compiletime_assert'
308 | if (!(condition)) \
| ^~~~~~~~~
include/linux/compiler_types.h:328:2: note: in expansion of macro '_compiletime_assert'
328 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~~~~~~~~~~~
include/asm-generic/rwonce.h:36:2: note: in expansion of macro 'compiletime_assert'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^~~~~~~~~~~~~~~~~~
include/asm-generic/rwonce.h:36:21: note: in expansion of macro '__native_word'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^~~~~~~~~~~~~
include/asm-generic/rwonce.h:49:2: note: in expansion of macro 'compiletime_assert_rwonce_type'
49 | compiletime_assert_rwonce_type(x); \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/asm-generic/preempt.h:11:9: note: in expansion of macro 'READ_ONCE'
11 | return READ_ONCE(current_thread_info()->preempt_count);
| ^~~~~~~~~
include/asm-generic/preempt.h:11:40: error: invalid type argument of '->' (have 'int')
11 | return READ_ONCE(current_thread_info()->preempt_count);
| ^~
include/linux/compiler_types.h:308:9: note: in definition of macro '__compiletime_assert'
308 | if (!(condition)) \
| ^~~~~~~~~
include/linux/compiler_types.h:328:2: note: in expansion of macro '_compiletime_assert'
328 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~~~~~~~~~~~
include/asm-generic/rwonce.h:36:2: note: in expansion of macro 'compiletime_assert'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^~~~~~~~~~~~~~~~~~
include/asm-generic/rwonce.h:36:21: note: in expansion of macro '__native_word'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^~~~~~~~~~~~~
include/asm-generic/rwonce.h:49:2: note: in expansion of macro 'compiletime_assert_rwonce_type'
49 | compiletime_assert_rwonce_type(x); \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/asm-generic/preempt.h:11:9: note: in expansion of macro 'READ_ONCE'
11 | return READ_ONCE(current_thread_info()->preempt_count);
| ^~~~~~~~~
include/asm-generic/preempt.h:11:40: error: invalid type argument of '->' (have 'int')
11 | return READ_ONCE(current_thread_info()->preempt_count);
| ^~
include/linux/compiler_types.h:308:9: note: in definition of macro '__compiletime_assert'
308 | if (!(condition)) \
| ^~~~~~~~~
include/linux/compiler_types.h:328:2: note: in expansion of macro '_compiletime_assert'
328 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~~~~~~~~~~~
include/asm-generic/rwonce.h:36:2: note: in expansion of macro 'compiletime_assert'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^~~~~~~~~~~~~~~~~~
include/asm-generic/rwonce.h:36:21: note: in expansion of macro '__native_word'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^~~~~~~~~~~~~
include/asm-generic/rwonce.h:49:2: note: in expansion of macro 'compiletime_assert_rwonce_type'
49 | compiletime_assert_rwonce_type(x); \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/asm-generic/preempt.h:11:9: note: in expansion of macro 'READ_ONCE'
11 | return READ_ONCE(current_thread_info()->preempt_count);
| ^~~~~~~~~
include/asm-generic/preempt.h:11:40: error: invalid type argument of '->' (have 'int')
11 | return READ_ONCE(current_thread_info()->preempt_count);
| ^~
include/linux/compiler_types.h:308:9: note: in definition of macro '__compiletime_assert'
308 | if (!(condition)) \
| ^~~~~~~~~
include/linux/compiler_types.h:328:2: note: in expansion of macro '_compiletime_assert'
--
from include/linux/sched.h:18,
from arch/powerpc/include/asm/compat.h:9,
from include/linux/compat.h:10,
from arch/powerpc/kernel/asm-offsets.c:14:
arch/powerpc/include/asm/book3s/64/hash.h: At top level:
arch/powerpc/include/asm/book3s/64/hash.h:248:22: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'hash__vmemmap_create_mapping'
248 | extern int __meminit hash__vmemmap_create_mapping(unsigned long start,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from arch/powerpc/include/asm/book3s/64/pgtable.h:297,
from arch/powerpc/include/asm/book3s/64/mmu-hash.h:20,
from arch/powerpc/include/asm/book3s/64/mmu.h:31,
from arch/powerpc/include/asm/mmu.h:402,
from arch/powerpc/include/asm/lppaca.h:46,
from arch/powerpc/include/asm/paca.h:17,
from arch/powerpc/include/asm/current.h:13,
from include/linux/sched.h:18,
from arch/powerpc/include/asm/compat.h:9,
from include/linux/compat.h:10,
from arch/powerpc/kernel/asm-offsets.c:14:
arch/powerpc/include/asm/book3s/64/radix.h:289:22: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'radix__vmemmap_create_mapping'
289 | extern int __meminit radix__vmemmap_create_mapping(unsigned long start,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from arch/powerpc/include/asm/book3s/64/mmu-hash.h:20,
from arch/powerpc/include/asm/book3s/64/mmu.h:31,
from arch/powerpc/include/asm/mmu.h:402,
from arch/powerpc/include/asm/lppaca.h:46,
from arch/powerpc/include/asm/paca.h:17,
from arch/powerpc/include/asm/current.h:13,
from include/linux/sched.h:18,
from arch/powerpc/include/asm/compat.h:9,
from include/linux/compat.h:10,
from arch/powerpc/kernel/asm-offsets.c:14:
arch/powerpc/include/asm/book3s/64/pgtable.h:1075:29: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'vmemmap_create_mapping'
1075 | static inline int __meminit vmemmap_create_mapping(unsigned long start,
| ^~~~~~~~~~~~~~~~~~~~~~
In file included from arch/powerpc/include/asm/mmu.h:402,
from arch/powerpc/include/asm/lppaca.h:46,
from arch/powerpc/include/asm/paca.h:17,
from arch/powerpc/include/asm/current.h:13,
from include/linux/sched.h:18,
from arch/powerpc/include/asm/compat.h:9,
from include/linux/compat.h:10,
from arch/powerpc/kernel/asm-offsets.c:14:
arch/powerpc/include/asm/book3s/64/mmu.h:210:27: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'early_init_mmu'
210 | static inline void __init early_init_mmu(void)
| ^~~~~~~~~~~~~~
In file included from arch/powerpc/include/asm/compat.h:9,
from include/linux/compat.h:10,
from arch/powerpc/kernel/asm-offsets.c:14:
include/linux/sched.h:459:26: error: field 'irqtrace' has incomplete type
459 | struct irqtrace_events irqtrace;
| ^~~~~~~~
include/linux/sched.h:475:20: error: array type has incomplete element type 'struct held_lock'
475 | struct held_lock held_locks[MAX_LOCK_DEPTH];
| ^~~~~~~~~~
In file included from include/linux/compat.h:10,
from arch/powerpc/kernel/asm-offsets.c:14:
arch/powerpc/include/asm/compat.h:42:2: error: unknown type name 'old_time32_t'
42 | old_time32_t st_atime;
| ^~~~~~~~~~~~
arch/powerpc/include/asm/compat.h:44:2: error: unknown type name 'old_time32_t'
44 | old_time32_t st_mtime;
| ^~~~~~~~~~~~
arch/powerpc/include/asm/compat.h:46:2: error: unknown type name 'old_time32_t'
46 | old_time32_t st_ctime;
| ^~~~~~~~~~~~
arch/powerpc/include/asm/compat.h: In function 'arch_compat_alloc_user_space':
arch/powerpc/include/asm/compat.h:99:25: error: implicit declaration of function 'task_thread'; did you mean 'start_thread'? [-Werror=implicit-function-declaration]
99 | struct pt_regs *regs = task_thread(current).regs;
| ^~~~~~~~~~~
| start_thread
arch/powerpc/include/asm/compat.h:99:45: error: request for member 'regs' in something not a structure or union
99 | struct pt_regs *regs = task_thread(current).regs;
| ^
In file included from include/linux/thread_info.h:52,
from include/linux/uio.h:10,
from include/linux/socket.h:8,
from include/uapi/linux/if.h:25,
from include/linux/compat.h:9,
from arch/powerpc/kernel/asm-offsets.c:14:
arch/powerpc/include/asm/thread_info.h:167:26: error: implicit declaration of function 'test_thread_flag'; did you mean 'test_thread_local_flags'? [-Werror=implicit-function-declaration]
167 | #define is_32bit_task() (test_thread_flag(TIF_32BIT))
| ^~~~~~~~~~~~~~~~
arch/powerpc/include/asm/compat.h:107:7: note: in expansion of macro 'is_32bit_task'
107 | if (!is_32bit_task())
| ^~~~~~~~~~~~~
In file included from arch/powerpc/kernel/asm-offsets.c:14:
include/linux/compat.h: At top level:
include/linux/compat.h:253:23: error: field 'ru_utime' has incomplete type
253 | struct old_timeval32 ru_utime;
| ^~~~~~~~
include/linux/compat.h:254:23: error: field 'ru_stime' has incomplete type
254 | struct old_timeval32 ru_stime;
| ^~~~~~~~
include/linux/compat.h: In function 'put_compat_sigset':
include/linux/compat.h:431:9: error: implicit declaration of function 'copy_to_user'; did you mean 'copy_to_iter'? [-Werror=implicit-function-declaration]
431 | return copy_to_user(compat, &v, size) ? -EFAULT : 0;
| ^~~~~~~~~~~~
| copy_to_iter
include/linux/compat.h: At top level:
>> include/linux/compat.h:548:13: warning: 'struct io_event' declared inside parameter list will not be visible outside of this definition or declaration
548 | struct io_event __user *events,
| ^~~~~~~~
include/linux/compat.h:554:13: warning: 'struct io_event' declared inside parameter list will not be visible outside of this definition or declaration
554 | struct io_event __user *events,
| ^~~~~~~~
>> include/linux/compat.h:838:18: warning: 'struct file_handle' declared inside parameter list will not be visible outside of this definition or declaration
838 | struct file_handle __user *handle,
| ^~~~~~~~~~~
include/linux/compat.h:847:51: error: unknown type name 'rwf_t'
847 | compat_ulong_t vlen, u32 pos_low, u32 pos_high, rwf_t flags);
| ^~~~~
include/linux/compat.h:850:51: error: unknown type name 'rwf_t'
850 | compat_ulong_t vlen, u32 pos_low, u32 pos_high, rwf_t flags);
| ^~~~~
include/linux/compat.h:940:36: error: return type is an incomplete type
940 | static inline struct old_timeval32 ns_to_old_timeval32(s64 nsec)
| ^~~~~~~~~~~~~~~~~~~
include/linux/compat.h: In function 'ns_to_old_timeval32':
include/linux/compat.h:943:23: error: storage size of 'ctv' isn't known
943 | struct old_timeval32 ctv;
| ^~~
include/linux/compat.h:945:7: error: implicit declaration of function 'ns_to_kernel_old_timeval' [-Werror=implicit-function-declaration]
945 | tv = ns_to_kernel_old_timeval(nsec);
| ^~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compat.h:945:7: error: incompatible types when assigning to type 'struct __kernel_old_timeval' from type 'int'
include/linux/compat.h:949:9: error: 'return' with a value, in function returning void [-Werror=return-type]
949 | return ctv;
| ^~~
include/linux/compat.h:940:36: note: declared here
940 | static inline struct old_timeval32 ns_to_old_timeval32(s64 nsec)
| ^~~~~~~~~~~~~~~~~~~
include/linux/compat.h:943:23: warning: unused variable 'ctv' [-Wunused-variable]
943 | struct old_timeval32 ctv;
| ^~~
In file included from <command-line>:
include/asm-generic/preempt.h: In function 'preempt_count':
include/asm-generic/preempt.h:11:40: error: invalid type argument of '->' (have 'int')
11 | return READ_ONCE(current_thread_info()->preempt_count);
| ^~
include/linux/compiler_types.h:308:9: note: in definition of macro '__compiletime_assert'
308 | if (!(condition)) \
| ^~~~~~~~~
include/linux/compiler_types.h:328:2: note: in expansion of macro '_compiletime_assert'
328 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~~~~~~~~~~~
include/asm-generic/rwonce.h:36:2: note: in expansion of macro 'compiletime_assert'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^~~~~~~~~~~~~~~~~~
include/asm-generic/rwonce.h:36:21: note: in expansion of macro '__native_word'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^~~~~~~~~~~~~
include/asm-generic/rwonce.h:49:2: note: in expansion of macro 'compiletime_assert_rwonce_type'
49 | compiletime_assert_rwonce_type(x); \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/asm-generic/preempt.h:11:9: note: in expansion of macro 'READ_ONCE'
11 | return READ_ONCE(current_thread_info()->preempt_count);
| ^~~~~~~~~
include/asm-generic/preempt.h:11:40: error: invalid type argument of '->' (have 'int')
11 | return READ_ONCE(current_thread_info()->preempt_count);
| ^~
include/linux/compiler_types.h:308:9: note: in definition of macro '__compiletime_assert'
308 | if (!(condition)) \
| ^~~~~~~~~
include/linux/compiler_types.h:328:2: note: in expansion of macro '_compiletime_assert'
328 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~~~~~~~~~~~
include/asm-generic/rwonce.h:36:2: note: in expansion of macro 'compiletime_assert'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^~~~~~~~~~~~~~~~~~
include/asm-generic/rwonce.h:36:21: note: in expansion of macro '__native_word'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^~~~~~~~~~~~~
include/asm-generic/rwonce.h:49:2: note: in expansion of macro 'compiletime_assert_rwonce_type'
49 | compiletime_assert_rwonce_type(x); \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/asm-generic/preempt.h:11:9: note: in expansion of macro 'READ_ONCE'
11 | return READ_ONCE(current_thread_info()->preempt_count);
| ^~~~~~~~~
include/asm-generic/preempt.h:11:40: error: invalid type argument of '->' (have 'int')
11 | return READ_ONCE(current_thread_info()->preempt_count);
| ^~
include/linux/compiler_types.h:308:9: note: in definition of macro '__compiletime_assert'
308 | if (!(condition)) \
| ^~~~~~~~~
include/linux/compiler_types.h:328:2: note: in expansion of macro '_compiletime_assert'
328 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~~~~~~~~~~~
include/asm-generic/rwonce.h:36:2: note: in expansion of macro 'compiletime_assert'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^~~~~~~~~~~~~~~~~~
include/asm-generic/rwonce.h:36:21: note: in expansion of macro '__native_word'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^~~~~~~~~~~~~
include/asm-generic/rwonce.h:49:2: note: in expansion of macro 'compiletime_assert_rwonce_type'
49 | compiletime_assert_rwonce_type(x); \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/asm-generic/preempt.h:11:9: note: in expansion of macro 'READ_ONCE'
11 | return READ_ONCE(current_thread_info()->preempt_count);
| ^~~~~~~~~
include/asm-generic/preempt.h:11:40: error: invalid type argument of '->' (have 'int')
11 | return READ_ONCE(current_thread_info()->preempt_count);
| ^~
include/linux/compiler_types.h:308:9: note: in definition of macro '__compiletime_assert'
308 | if (!(condition)) \
| ^~~~~~~~~
include/linux/compiler_types.h:328:2: note: in expansion of macro '_compiletime_assert'
..

vim +548 include/linux/compat.h

c679a08983db7c Dominik Brodowski 2018-03-25 527
f6dfb4fd7dd944 Davide Libenzi 2007-03-07 528 /*
c679a08983db7c Dominik Brodowski 2018-03-25 529 * These syscall function prototypes are kept in the same order as
3e2052e5dd4062 Dominik Brodowski 2018-03-22 530 * include/uapi/asm-generic/unistd.h. Deprecated or obsolete system calls
3e2052e5dd4062 Dominik Brodowski 2018-03-22 531 * go below.
c679a08983db7c Dominik Brodowski 2018-03-25 532 *
c679a08983db7c Dominik Brodowski 2018-03-25 533 * Please note that these prototypes here are only provided for information
c679a08983db7c Dominik Brodowski 2018-03-25 534 * purposes, for static analysis, and for linking from the syscall table.
c679a08983db7c Dominik Brodowski 2018-03-25 535 * These functions should not be called elsewhere from kernel code.
7303e30ec1d8fb Dominik Brodowski 2018-04-05 536 *
7303e30ec1d8fb Dominik Brodowski 2018-04-05 537 * As the syscall calling convention may be different from the default
7303e30ec1d8fb Dominik Brodowski 2018-04-05 538 * for architectures overriding the syscall calling convention, do not
7303e30ec1d8fb Dominik Brodowski 2018-04-05 539 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
f6dfb4fd7dd944 Davide Libenzi 2007-03-07 540 */
7303e30ec1d8fb Dominik Brodowski 2018-04-05 541 #ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
c679a08983db7c Dominik Brodowski 2018-03-25 542 asmlinkage long compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p);
c679a08983db7c Dominik Brodowski 2018-03-25 543 asmlinkage long compat_sys_io_submit(compat_aio_context_t ctx_id, int nr,
c679a08983db7c Dominik Brodowski 2018-03-25 544 u32 __user *iocb);
7a074e96dee625 Christoph Hellwig 2018-05-02 545 asmlinkage long compat_sys_io_pgetevents(compat_aio_context_t ctx_id,
7a074e96dee625 Christoph Hellwig 2018-05-02 546 compat_long_t min_nr,
7a074e96dee625 Christoph Hellwig 2018-05-02 547 compat_long_t nr,
7a074e96dee625 Christoph Hellwig 2018-05-02 @548 struct io_event __user *events,
9afc5eee65ca7d Arnd Bergmann 2018-07-13 549 struct old_timespec32 __user *timeout,
7a074e96dee625 Christoph Hellwig 2018-05-02 550 const struct __compat_aio_sigset __user *usig);
7a35397f8c06bf Deepa Dinamani 2018-09-19 551 asmlinkage long compat_sys_io_pgetevents_time64(compat_aio_context_t ctx_id,
7a35397f8c06bf Deepa Dinamani 2018-09-19 552 compat_long_t min_nr,
7a35397f8c06bf Deepa Dinamani 2018-09-19 553 compat_long_t nr,
7a35397f8c06bf Deepa Dinamani 2018-09-19 554 struct io_event __user *events,
7a35397f8c06bf Deepa Dinamani 2018-09-19 555 struct __kernel_timespec __user *timeout,
7a35397f8c06bf Deepa Dinamani 2018-09-19 556 const struct __compat_aio_sigset __user *usig);
c679a08983db7c Dominik Brodowski 2018-03-25 557

:::::: The code at line 548 was first introduced by commit
:::::: 7a074e96dee62586c935c80cecd931431bfdd0be aio: implement io_pgetevents

:::::: TO: Christoph Hellwig <hch@xxxxxx>
:::::: CC: Christoph Hellwig <hch@xxxxxx>

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