Re: [PATCH] [PATCH V5] mqueue: introduce new do_mq_timedreceive2() [ mq_peek syscall] for non-destructive receive and inspection,fix minor issue,prepared doc.
From: kernel test robot
Date: Fri Mar 06 2026 - 17:12:38 EST
Hi Mathura_Kumar,
kernel test robot noticed the following build errors:
[auto build test ERROR on shuah-kselftest/next]
[also build test ERROR on shuah-kselftest/fixes brauner-vfs/vfs.all linus/master v7.0-rc2 next-20260306]
[cannot apply to tip/x86/asm]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Mathura_Kumar/mqueue-introduce-new-do_mq_timedreceive2-mq_peek-syscall-for-non-destructive-receive-and-inspection-fix-minor-issue-prep/20260306-155240
base: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git next
patch link: https://lore.kernel.org/r/20260306075009.83723-1-academic1mathura%40gmail.com
patch subject: [PATCH] [PATCH V5] mqueue: introduce new do_mq_timedreceive2() [ mq_peek syscall] for non-destructive receive and inspection,fix minor issue,prepared doc.
config: powerpc-randconfig-r053-20260307 (https://download.01.org/0day-ci/archive/20260307/202603070636.7HA192z4-lkp@xxxxxxxxx/config)
compiler: powerpc-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260307/202603070636.7HA192z4-lkp@xxxxxxxxx/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202603070636.7HA192z4-lkp@xxxxxxxxx/
All errors (new ones prefixed by >>):
include/linux/syscalls.h:122:27: note: in expansion of macro '__SC_LONG'
#define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__)
^
include/linux/syscalls.h:123:35: note: in expansion of macro '__MAP4'
#define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
^~~~~~
include/linux/syscalls.h:125:22: note: in expansion of macro '__MAP5'
#define __MAP(n,...) __MAP##n(__VA_ARGS__)
^~~~~
arch/powerpc/include/asm/syscall_wrapper.h:27:29: note: in expansion of macro '__MAP'
static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
^~~~~
include/linux/syscalls.h:237:2: note: in expansion of macro '__SYSCALL_DEFINEx'
__SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
^~~~~~~~~~~~~~~~~
include/linux/syscalls.h:230:36: note: in expansion of macro 'SYSCALL_DEFINEx'
#define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
^~~~~~~~~~~~~~~
ipc/mqueue.c:1747:1: note: in expansion of macro 'SYSCALL_DEFINE5'
SYSCALL_DEFINE5(mq_timedreceive2_time32, mqd_t, mqdes,
^~~~~~~~~~~~~~~
In file included from ipc/mqueue.c:29:
ipc/mqueue.c: In function '__se_sys_mq_timedreceive2_time32':
include/linux/syscalls.h:133:25: error: passing argument 2 of '__do_sys_mq_timedreceive2_time32' from incompatible pointer type [-Werror=incompatible-pointer-types]
#define __SC_CAST(t, a) (__force t) a
include/linux/syscalls.h:122:27: note: in expansion of macro '__SC_CAST'
#define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__)
^
include/linux/syscalls.h:123:35: note: in expansion of macro '__MAP4'
#define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
^~~~~~
include/linux/syscalls.h:125:22: note: in expansion of macro '__MAP5'
#define __MAP(n,...) __MAP##n(__VA_ARGS__)
^~~~~
arch/powerpc/include/asm/syscall_wrapper.h:29:29: note: in expansion of macro '__MAP'
long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__)); \
^~~~~
include/linux/syscalls.h:237:2: note: in expansion of macro '__SYSCALL_DEFINEx'
__SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
^~~~~~~~~~~~~~~~~
include/linux/syscalls.h:230:36: note: in expansion of macro 'SYSCALL_DEFINEx'
#define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
^~~~~~~~~~~~~~~
ipc/mqueue.c:1747:1: note: in expansion of macro 'SYSCALL_DEFINE5'
SYSCALL_DEFINE5(mq_timedreceive2_time32, mqd_t, mqdes,
^~~~~~~~~~~~~~~
ipc/mqueue.c:1748:49: note: expected 'struct compat_mq_timedreceive2_args *' but argument is of type 'struct compat_mq_timedreceive2_args *'
struct compat_mq_timedreceive2_args __user *, uargs,
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~
include/linux/syscalls.h:127:27: note: in definition of macro '__SC_DECL'
#define __SC_DECL(t, a) t a
^
include/linux/syscalls.h:123:35: note: in expansion of macro '__MAP4'
#define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
^~~~~~
include/linux/syscalls.h:125:22: note: in expansion of macro '__MAP5'
#define __MAP(n,...) __MAP##n(__VA_ARGS__)
^~~~~
arch/powerpc/include/asm/syscall_wrapper.h:22:36: note: in expansion of macro '__MAP'
static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \
^~~~~
include/linux/syscalls.h:237:2: note: in expansion of macro '__SYSCALL_DEFINEx'
__SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
^~~~~~~~~~~~~~~~~
include/linux/syscalls.h:230:36: note: in expansion of macro 'SYSCALL_DEFINEx'
#define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
^~~~~~~~~~~~~~~
ipc/mqueue.c:1747:1: note: in expansion of macro 'SYSCALL_DEFINE5'
SYSCALL_DEFINE5(mq_timedreceive2_time32, mqd_t, mqdes,
^~~~~~~~~~~~~~~
ipc/mqueue.c: At top level:
ipc/mqueue.c:1748:10: warning: 'struct compat_mq_timedreceive2_args' declared inside parameter list will not be visible outside of this definition or declaration
struct compat_mq_timedreceive2_args __user *, uargs,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/syscalls.h:127:25: note: in definition of macro '__SC_DECL'
#define __SC_DECL(t, a) t a
^
include/linux/syscalls.h:123:35: note: in expansion of macro '__MAP4'
#define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
^~~~~~
include/linux/syscalls.h:125:22: note: in expansion of macro '__MAP5'
#define __MAP(n,...) __MAP##n(__VA_ARGS__)
^~~~~
arch/powerpc/include/asm/syscall_wrapper.h:34:36: note: in expansion of macro '__MAP'
static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
^~~~~
include/linux/syscalls.h:237:2: note: in expansion of macro '__SYSCALL_DEFINEx'
__SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
^~~~~~~~~~~~~~~~~
include/linux/syscalls.h:230:36: note: in expansion of macro 'SYSCALL_DEFINEx'
#define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
^~~~~~~~~~~~~~~
ipc/mqueue.c:1747:1: note: in expansion of macro 'SYSCALL_DEFINE5'
SYSCALL_DEFINE5(mq_timedreceive2_time32, mqd_t, mqdes,
^~~~~~~~~~~~~~~
In file included from include/linux/compat.h:34,
from include/net/compat.h:8,
from include/net/scm.h:13,
from include/linux/netlink.h:9,
from ipc/mqueue.c:28:
>> arch/powerpc/include/asm/syscall_wrapper.h:34:21: error: conflicting types for '__do_sys_mq_timedreceive2_time32'
static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
^~~~~~~~
include/linux/syscalls.h:237:2: note: in expansion of macro '__SYSCALL_DEFINEx'
__SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
^~~~~~~~~~~~~~~~~
include/linux/syscalls.h:230:36: note: in expansion of macro 'SYSCALL_DEFINEx'
#define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
^~~~~~~~~~~~~~~
ipc/mqueue.c:1747:1: note: in expansion of macro 'SYSCALL_DEFINE5'
SYSCALL_DEFINE5(mq_timedreceive2_time32, mqd_t, mqdes,
^~~~~~~~~~~~~~~
arch/powerpc/include/asm/syscall_wrapper.h:22:21: note: previous declaration of '__do_sys_mq_timedreceive2_time32' was here
static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \
^~~~~~~~
include/linux/syscalls.h:237:2: note: in expansion of macro '__SYSCALL_DEFINEx'
__SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
^~~~~~~~~~~~~~~~~
include/linux/syscalls.h:230:36: note: in expansion of macro 'SYSCALL_DEFINEx'
#define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
^~~~~~~~~~~~~~~
ipc/mqueue.c:1747:1: note: in expansion of macro 'SYSCALL_DEFINE5'
SYSCALL_DEFINE5(mq_timedreceive2_time32, mqd_t, mqdes,
^~~~~~~~~~~~~~~
ipc/mqueue.c: In function '__do_sys_mq_timedreceive2_time32':
ipc/mqueue.c:1756:6: error: implicit declaration of function 'get_compat_mq_args'; did you mean 'get_compat_msghdr'? [-Werror=implicit-function-declaration]
if (get_compat_mq_args(pargs, uargs))
^~~~~~~~~~~~~~~~~~
get_compat_msghdr
In file included from include/linux/compat.h:34,
from include/net/compat.h:8,
from include/net/scm.h:13,
from include/linux/netlink.h:9,
from ipc/mqueue.c:28:
ipc/mqueue.c: At top level:
arch/powerpc/include/asm/syscall_wrapper.h:22:21: warning: '__do_sys_mq_timedreceive2_time32' used but never defined
static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \
^~~~~~~~
include/linux/syscalls.h:237:2: note: in expansion of macro '__SYSCALL_DEFINEx'
__SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
^~~~~~~~~~~~~~~~~
include/linux/syscalls.h:230:36: note: in expansion of macro 'SYSCALL_DEFINEx'
#define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
^~~~~~~~~~~~~~~
ipc/mqueue.c:1747:1: note: in expansion of macro 'SYSCALL_DEFINE5'
SYSCALL_DEFINE5(mq_timedreceive2_time32, mqd_t, mqdes,
^~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
vim +/__do_sys_mq_timedreceive2_time32 +34 arch/powerpc/include/asm/syscall_wrapper.h
7e92e01b724526 Rohan McLure 2022-09-21 12
7e92e01b724526 Rohan McLure 2022-09-21 13 #define SC_POWERPC_REGS_TO_ARGS(x, ...) \
7e92e01b724526 Rohan McLure 2022-09-21 14 __MAP(x,__SC_ARGS \
7e92e01b724526 Rohan McLure 2022-09-21 15 ,,regs->gpr[3],,regs->gpr[4],,regs->gpr[5] \
7e92e01b724526 Rohan McLure 2022-09-21 16 ,,regs->gpr[6],,regs->gpr[7],,regs->gpr[8])
7e92e01b724526 Rohan McLure 2022-09-21 17
7e92e01b724526 Rohan McLure 2022-09-21 18 #define __SYSCALL_DEFINEx(x, name, ...) \
94746890202cf1 Michael Ellerman 2022-10-06 19 long sys##name(const struct pt_regs *regs); \
94746890202cf1 Michael Ellerman 2022-10-06 20 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \
7e92e01b724526 Rohan McLure 2022-09-21 21 static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
7e92e01b724526 Rohan McLure 2022-09-21 22 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \
94746890202cf1 Michael Ellerman 2022-10-06 23 long sys##name(const struct pt_regs *regs) \
7e92e01b724526 Rohan McLure 2022-09-21 24 { \
7e92e01b724526 Rohan McLure 2022-09-21 25 return __se_sys##name(SC_POWERPC_REGS_TO_ARGS(x,__VA_ARGS__)); \
7e92e01b724526 Rohan McLure 2022-09-21 26 } \
7e92e01b724526 Rohan McLure 2022-09-21 27 static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
7e92e01b724526 Rohan McLure 2022-09-21 28 { \
7e92e01b724526 Rohan McLure 2022-09-21 29 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__)); \
7e92e01b724526 Rohan McLure 2022-09-21 30 __MAP(x,__SC_TEST,__VA_ARGS__); \
7e92e01b724526 Rohan McLure 2022-09-21 31 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \
7e92e01b724526 Rohan McLure 2022-09-21 32 return ret; \
7e92e01b724526 Rohan McLure 2022-09-21 33 } \
7e92e01b724526 Rohan McLure 2022-09-21 @34 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
7e92e01b724526 Rohan McLure 2022-09-21 35
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