s390: Enable seccomp architecture tracking

stable inclusion
from stable-5.11-rc1
commit c09058ed
bugzilla: 167382
CVE: N/A

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=c09058eda2654c37fd7ac28c2004c3aae8b988e9

-------------------------------------------------

To enable seccomp constant action bitmaps, we need to have a static
mapping to the audit architecture and system call table size. Add these
for s390.
Signed-off-by: NYiFei Zhu <yifeifz2@illinois.edu>
Acked-by: NHeiko Carstens <hca@linux.ibm.com>
Signed-off-by: NKees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/a381b10aa2c5b1e583642f3cd46ced842d9d4ce5.1605101222.git.yifeifz2@illinois.eduSigned-off-by: NGONG, Ruiqi <gongruiqi1@huawei.com>
Reviewed-by: NXiu Jianfeng <xiujianfeng@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

arch/s390/include/asm/seccomp.h

@@ -16,4 +16,13 @@
 
 #include <asm-generic/seccomp.h>
 
+#define SECCOMP_ARCH_NATIVE		AUDIT_ARCH_S390X
+#define SECCOMP_ARCH_NATIVE_NR		NR_syscalls
+#define SECCOMP_ARCH_NATIVE_NAME	"s390x"
+#ifdef CONFIG_COMPAT
+# define SECCOMP_ARCH_COMPAT		AUDIT_ARCH_S390
+# define SECCOMP_ARCH_COMPAT_NR		NR_syscalls
+# define SECCOMP_ARCH_COMPAT_NAME	"s390"
+#endif
+
 #endif	/* _ASM_S390_SECCOMP_H */