__NR_Linux_syscalls macro holds the number of system call exist in parisc architecture. We have to change the value of __NR_Linux_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- _Linux_syscalls value. 1. Update __NR_Linux_syscalls in asm/unistd.h manually by counting the no.of system calls. No need to update __NR- _Linux_syscalls 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_Linux_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_Linux_syscalls asm/unistd.h. The macro __NR_sys- calls 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 <firoz.khan@xxxxxxxxxx> Acked-by: Helge Deller <deller@xxxxxx> --- arch/parisc/include/asm/unistd.h | 2 ++ arch/parisc/include/uapi/asm/unistd.h | 6 ++++-- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h index fd1013f..c2c2afb 100644 --- a/arch/parisc/include/asm/unistd.h +++ b/arch/parisc/include/asm/unistd.h @@ -4,6 +4,8 @@ #include <uapi/asm/unistd.h> +#define __NR_Linux_syscalls __NR_syscalls + #ifndef __ASSEMBLY__ #define SYS_ify(syscall_name) __NR_##syscall_name diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h index bb52e12..53cc748 100644 --- a/arch/parisc/include/uapi/asm/unistd.h +++ b/arch/parisc/include/uapi/asm/unistd.h @@ -366,8 +366,10 @@ #define __NR_statx (__NR_Linux + 349) #define __NR_io_pgetevents (__NR_Linux + 350) -#define __NR_Linux_syscalls (__NR_io_pgetevents + 1) +#ifdef __KERNEL__ +#define __NR_syscalls 351 +#endif -#define LINUX_GATEWAY_ADDR 0x100 +#define LINUX_GATEWAY_ADDR 0x100 #endif /* _UAPI_ASM_PARISC_UNISTD_H_ */ -- 1.9.1
