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| author | Davidlohr Bueso <davidlohr@hp.com> | 2014-04-07 15:39:17 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-07 16:36:11 -0700 |
| commit | 187841a800f328e93529086ca58145e7a44bff3f (patch) | |
| tree | 8d5111595735e5b3cd563c54fa27f9714d72d632 /ipc | |
| parent | 6aa7a29aa8378fa868fabef6a84b0a40d5d9d677 (diff) | |
| download | lwn-187841a800f328e93529086ca58145e7a44bff3f.tar.gz lwn-187841a800f328e93529086ca58145e7a44bff3f.zip | |
ipc/compat.c: remove sc_semopm macro
This macro appears to have been introduced back in the 2.5 era for
semtimedop32 backward compatibility on ia32:
https://lkml.org/lkml/2003/4/28/78
Nowadays, this syscall in compat just defaults back to the code found in
sem.c, so it is no longer used and can thus be removed:
long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
unsigned nsops, const struct compat_timespec __user *timeout)
{
struct timespec __user *ts64;
if (compat_convert_timespec(&ts64, timeout))
return -EFAULT;
return sys_semtimedop(semid, tsems, nsops, ts64);
}
Furthermore, there are no users in compat.c. After this change, kernel
builds just fine with both CONFIG_SYSVIPC_COMPAT and CONFIG_SYSVIPC.
Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'ipc')
| -rw-r--r-- | ipc/compat.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/ipc/compat.c b/ipc/compat.c index a4695ada3275..45d035d4cedc 100644 --- a/ipc/compat.c +++ b/ipc/compat.c @@ -113,9 +113,6 @@ struct compat_shm_info { compat_ulong_t swap_attempts, swap_successes; }; -extern int sem_ctls[]; -#define sc_semopm (sem_ctls[2]) - static inline int compat_ipc_parse_version(int *cmd) { #ifdef CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION |