[MIPS] Use SYSVIPC_COMPAT to fix various problems on N32
N32 SysV IPC system calls should use 32-bit compatible code.
arch/mips/kernel/linux32.c have similar compatible code for O32, but
ipc/compat.c seems more complete. We can use it for both N32 and O32.
This patch should fix these problems (and other possible problems):
http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=1149188824.6986.6.camel%40diimka-laptop
http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=44C6B829.8050508%40caviumnetworks.com
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/include/asm-mips/compat.h b/include/asm-mips/compat.h
index 900f472..55a0152 100644
--- a/include/asm-mips/compat.h
+++ b/include/asm-mips/compat.h
@@ -32,6 +32,7 @@
s32 val[2];
} compat_fsid_t;
typedef s32 compat_timer_t;
+typedef s32 compat_key_t;
typedef s32 compat_int_t;
typedef s32 compat_long_t;
@@ -146,4 +147,71 @@
return (void __user *) (regs->regs[29] - len);
}
+struct compat_ipc64_perm {
+ compat_key_t key;
+ __compat_uid32_t uid;
+ __compat_gid32_t gid;
+ __compat_uid32_t cuid;
+ __compat_gid32_t cgid;
+ compat_mode_t mode;
+ unsigned short seq;
+ unsigned short __pad2;
+ compat_ulong_t __unused1;
+ compat_ulong_t __unused2;
+};
+
+struct compat_semid64_ds {
+ struct compat_ipc64_perm sem_perm;
+ compat_time_t sem_otime;
+ compat_time_t sem_ctime;
+ compat_ulong_t sem_nsems;
+ compat_ulong_t __unused1;
+ compat_ulong_t __unused2;
+};
+
+struct compat_msqid64_ds {
+ struct compat_ipc64_perm msg_perm;
+#ifndef CONFIG_CPU_LITTLE_ENDIAN
+ compat_ulong_t __unused1;
+#endif
+ compat_time_t msg_stime;
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+ compat_ulong_t __unused1;
+#endif
+#ifndef CONFIG_CPU_LITTLE_ENDIAN
+ compat_ulong_t __unused2;
+#endif
+ compat_time_t msg_rtime;
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+ compat_ulong_t __unused2;
+#endif
+#ifndef CONFIG_CPU_LITTLE_ENDIAN
+ compat_ulong_t __unused3;
+#endif
+ compat_time_t msg_ctime;
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+ compat_ulong_t __unused3;
+#endif
+ compat_ulong_t msg_cbytes;
+ compat_ulong_t msg_qnum;
+ compat_ulong_t msg_qbytes;
+ compat_pid_t msg_lspid;
+ compat_pid_t msg_lrpid;
+ compat_ulong_t __unused4;
+ compat_ulong_t __unused5;
+};
+
+struct compat_shmid64_ds {
+ struct compat_ipc64_perm shm_perm;
+ compat_size_t shm_segsz;
+ compat_time_t shm_atime;
+ compat_time_t shm_dtime;
+ compat_time_t shm_ctime;
+ compat_pid_t shm_cpid;
+ compat_pid_t shm_lpid;
+ compat_ulong_t shm_nattch;
+ compat_ulong_t __unused1;
+ compat_ulong_t __unused2;
+};
+
#endif /* _ASM_COMPAT_H */