From d7c5e82c08a0fb8b8d5186cdcb6d2c54ada4076b Mon Sep 17 00:00:00 2001 From: Firoz Khan Date: Tue, 13 Nov 2018 12:27:42 +0530 Subject: ia64: add __NR_syscalls along with NR_syscalls NR_syscalls macro holds the number of system call exist in ia64 architecture. We have to change the value of NR- _syscalls, if we add or delete a system call. One of the patch in this patch series has a script which will generate a uapi header based on syscall.tbl file. The syscall.tbl file contains the total number of system calls information. So we have two option to update NR_sy- scalls value. 1. Update NR_syscalls in asm/unistd.h manually by count- ing the no.of system calls. No need to update NR_sys- calls until we either add a new system call or delete existing system call. 2. We can keep this feature it above mentioned script, that will count the number of syscalls and keep it in a generated file. In this case we don't need to expli- citly update NR_syscalls in asm/unistd.h file. The 2nd option will be the recommended one. For that, I added the __NR_syscalls macro in uapi/asm/unistd.h along with NR_syscalls asm/unistd.h. The macro __NR_syscalls also added for making the name convention same across all architecture. While __NR_syscalls isn't strictly part of the uapi, having it as part of the generated header to simplifies the implementation. We also need to enclose this macro with #ifdef __KERNEL__ to avoid side effects. Signed-off-by: Firoz Khan Signed-off-by: Tony Luck --- arch/ia64/include/uapi/asm/unistd.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/ia64/include/uapi') diff --git a/arch/ia64/include/uapi/asm/unistd.h b/arch/ia64/include/uapi/asm/unistd.h index 94b835cc4f11..388ab4e23a18 100644 --- a/arch/ia64/include/uapi/asm/unistd.h +++ b/arch/ia64/include/uapi/asm/unistd.h @@ -341,4 +341,8 @@ #define __NR_preadv2 1348 #define __NR_pwritev2 1349 +#ifdef __KERNEL__ +#define __NR_syscalls 326 +#endif + #endif /* _UAPI_ASM_IA64_UNISTD_H */ -- cgit v1.2.3