MIPS: add seccomp syscall

Wires up the new seccomp syscall.
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>

arch/mips/include/uapi/asm/unistd.h

@@ -372,16 +372,17 @@
 #define __NR_sched_setattr		(__NR_Linux + 349)
 #define __NR_sched_getattr		(__NR_Linux + 350)
 #define __NR_renameat2			(__NR_Linux + 351)
+#define __NR_seccomp			(__NR_Linux + 352)
 
 /*
  * Offset of the last Linux o32 flavoured syscall
  */
-#define __NR_Linux_syscalls		351
+#define __NR_Linux_syscalls		352
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
 
 #define __NR_O32_Linux			4000
-#define __NR_O32_Linux_syscalls		351
+#define __NR_O32_Linux_syscalls		352
 
 #if _MIPS_SIM == _MIPS_SIM_ABI64
 
@@ -701,16 +702,17 @@
 #define __NR_sched_setattr		(__NR_Linux + 309)
 #define __NR_sched_getattr		(__NR_Linux + 310)
 #define __NR_renameat2			(__NR_Linux + 311)
+#define __NR_seccomp			(__NR_Linux + 312)
 
 /*
  * Offset of the last Linux 64-bit flavoured syscall
  */
-#define __NR_Linux_syscalls		311
+#define __NR_Linux_syscalls		312
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */
 
 #define __NR_64_Linux			5000
-#define __NR_64_Linux_syscalls		311
+#define __NR_64_Linux_syscalls		312
 
 #if _MIPS_SIM == _MIPS_SIM_NABI32
 
@@ -1034,15 +1036,16 @@
 #define __NR_sched_setattr		(__NR_Linux + 313)
 #define __NR_sched_getattr		(__NR_Linux + 314)
 #define __NR_renameat2			(__NR_Linux + 315)
+#define __NR_seccomp			(__NR_Linux + 316)
 
 /*
  * Offset of the last N32 flavoured syscall
  */
-#define __NR_Linux_syscalls		315
+#define __NR_Linux_syscalls		316
 
 #endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */
 
 #define __NR_N32_Linux			6000
-#define __NR_N32_Linux_syscalls		315
+#define __NR_N32_Linux_syscalls		316
 
 #endif /* _UAPI_ASM_UNISTD_H */

arch/mips/kernel/scall32-o32.S

@@ -578,3 +578,4 @@ EXPORT(sys_call_table)
 	PTR	sys_sched_setattr
 	PTR	sys_sched_getattr		/* 4350 */
 	PTR	sys_renameat2
+	PTR	sys_seccomp

arch/mips/kernel/scall64-64.S

@@ -431,4 +431,5 @@ EXPORT(sys_call_table)
 	PTR	sys_sched_setattr
 	PTR	sys_sched_getattr		/* 5310 */
 	PTR	sys_renameat2
+	PTR	sys_seccomp
 	.size	sys_call_table,.-sys_call_table

arch/mips/kernel/scall64-n32.S

@@ -424,4 +424,5 @@ EXPORT(sysn32_call_table)
 	PTR	sys_sched_setattr
 	PTR	sys_sched_getattr
 	PTR	sys_renameat2			/* 6315 */
+	PTR	sys_seccomp
 	.size	sysn32_call_table,.-sysn32_call_table

arch/mips/kernel/scall64-o32.S

@@ -557,4 +557,5 @@ EXPORT(sys32_call_table)
 	PTR	sys_sched_setattr
 	PTR	sys_sched_getattr		/* 4350 */
 	PTR	sys_renameat2
+	PTR	sys_seccomp
 	.size	sys32_call_table,.-sys32_call_table