Subject: + ipccompat-remove-sc_semopm-macro.patch added to -mm tree To: davidlohr@xxxxxx,manfred@xxxxxxxxxxxxxxxx From: akpm@xxxxxxxxxxxxxxxxxxxx Date: Tue, 18 Feb 2014 13:39:37 -0800 The patch titled Subject: ipc/compat.c: remove sc_semopm macro has been added to the -mm tree. Its filename is ipccompat-remove-sc_semopm-macro.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/ipccompat-remove-sc_semopm-macro.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/ipccompat-remove-sc_semopm-macro.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Davidlohr Bueso <davidlohr@xxxxxx> Subject: 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@xxxxxx> Cc: Manfred Spraul <manfred@xxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- ipc/compat.c | 3 --- 1 file changed, 3 deletions(-) diff -puN ipc/compat.c~ipccompat-remove-sc_semopm-macro ipc/compat.c --- a/ipc/compat.c~ipccompat-remove-sc_semopm-macro +++ a/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 _ Patches currently in -mm which might be from davidlohr@xxxxxx are ipcmqueue-remove-limits-for-the-amount-of-system-wide-queues.patch mm-hugetlb-unify-region-structure-handling.patch mm-hugetlb-improve-cleanup-resv_map-parameters.patch mm-hugetlb-fix-race-in-region-tracking.patch mm-hugetlb-remove-resv_map_put.patch mm-hugetlb-use-vma_resv_map-map-types.patch mm-hugetlb-improve-page-fault-scalability.patch mm-hugetlb-improve-page-fault-scalability-fix.patch mm-hugetlb-mark-some-bootstrap-functions-as-__init.patch ipccompat-remove-sc_semopm-macro.patch ipc-use-device_initcall.patch linux-next.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html