On Mon, Jul 16, 2018 at 03:53:53PM +0530, Firoz Khan wrote:
> It is correct to keep __IGNORE* entry in non uapi header
> asm/unistd.h while uapi/asm/unistd.h must hold information
> only useful for user space applications.

> diff --git a/arch/alpha/include/uapi/asm/unistd.h b/arch/alpha/include/uapi/asm/unistd.h
> index e153ca6..3bb6ac1 100644
> --- a/arch/alpha/include/uapi/asm/unistd.h
> +++ b/arch/alpha/include/uapi/asm/unistd.h
> @@ -481,9 +481,4 @@
>  #define __NR_pwritev2			521
>  #define __NR_statx			522
> 
> -/* Alpha doesn't have protection keys. */
> -#define __IGNORE_pkey_mprotect
> -#define __IGNORE_pkey_alloc
> -#define __IGNORE_pkey_free
> -
>  #endif /* _UAPI_ALPHA_UNISTD_H */

Hmm...  There's also

#define __IGNORE_alarm
#define __IGNORE_creat
#define __IGNORE_getegid
#define __IGNORE_geteuid
#define __IGNORE_getgid
#define __IGNORE_getpid
#define __IGNORE_getppid
#define __IGNORE_getuid
#define __IGNORE_pause
#define __IGNORE_time
#define __IGNORE_utime
#define __IGNORE_umount2

in there...