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| author | Atsushi Nemoto <anemo@mba.ocn.ne.jp> | 2007-01-10 18:53:33 +0900 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2007-01-10 20:02:24 +0000 |
| commit | e16d8df0be26c8e82c4a1188af8143f2d466b12a (patch) | |
| tree | c1b06fe59395286fccc94c7af72bfb6ef5ada773 /arch | |
| parent | 6b4cd2755039a0be642699e3fc2e3386daa88151 (diff) | |
| download | linux-e16d8df0be26c8e82c4a1188af8143f2d466b12a.tar.gz linux-e16d8df0be26c8e82c4a1188af8143f2d466b12a.tar.bz2 linux-e16d8df0be26c8e82c4a1188af8143f2d466b12a.zip | |
[MIPS] Fix N32 SysV IPC routines
Add wrappers for N32 msg{snd,rcv}. compat_sys_msg{snd,rcv} can not not be
used as system call entries as is. This fix is based on Kaz Kylheku's
patch.
Also change a type of last argument of sysn32_semctl to match its true
size.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/kernel/linux32.c | 16 | ||||
| -rw-r--r-- | arch/mips/kernel/scall64-n32.S | 4 |
2 files changed, 16 insertions, 4 deletions
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c index b061c9aa6302..de3fae260ff8 100644 --- a/arch/mips/kernel/linux32.c +++ b/arch/mips/kernel/linux32.c @@ -440,14 +440,26 @@ sys32_ipc (u32 call, int first, int second, int third, u32 ptr, u32 fifth) } #ifdef CONFIG_MIPS32_N32 -asmlinkage long sysn32_semctl(int semid, int semnum, int cmd, union semun arg) +asmlinkage long sysn32_semctl(int semid, int semnum, int cmd, u32 arg) { /* compat_sys_semctl expects a pointer to union semun */ u32 __user *uptr = compat_alloc_user_space(sizeof(u32)); - if (put_user(ptr_to_compat(arg.__pad), uptr)) + if (put_user(arg, uptr)) return -EFAULT; return compat_sys_semctl(semid, semnum, cmd, uptr); } + +asmlinkage long sysn32_msgsnd(int msqid, u32 msgp, unsigned msgsz, int msgflg) +{ + return compat_sys_msgsnd(msqid, msgsz, msgflg, compat_ptr(msgp)); +} + +asmlinkage long sysn32_msgrcv(int msqid, u32 msgp, size_t msgsz, int msgtyp, + int msgflg) +{ + return compat_sys_msgrcv(msqid, msgsz, msgtyp, msgflg, IPC_64, + compat_ptr(msgp)); +} #endif struct sysctl_args32 diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S index 34567d81f940..a7bff2a54723 100644 --- a/arch/mips/kernel/scall64-n32.S +++ b/arch/mips/kernel/scall64-n32.S @@ -187,8 +187,8 @@ EXPORT(sysn32_call_table) PTR sysn32_semctl PTR sys_shmdt /* 6065 */ PTR sys_msgget - PTR compat_sys_msgsnd - PTR compat_sys_msgrcv + PTR sysn32_msgsnd + PTR sysn32_msgrcv PTR compat_sys_msgctl PTR compat_sys_fcntl /* 6070 */ PTR sys_flock |