On 11/14/2016 03:12 AM, Heiko Carstens wrote: > Having code for the pkey_mprotect, pkey_alloc and pkey_free system > calls makes only sense if ARCH_HAS_PKEYS is selected. If not selected > these system calls will always return -ENOSPC or -EINVAL. > > To simplify things and have less code generate the pkey system call > code only if ARCH_HAS_PKEYS is selected. > > For architectures which have already wired up the system calls, but do > not select ARCH_HAS_PKEYS this will result in less generated code and > a different return code: the three system calls will now always return > -ENOSYS, using the cond_syscall mechanism. > > For architectures which have not wired up the system calls less > unreachable code will be generated. > > Signed-off-by: Heiko Carstens <heiko.carstens@xxxxxxxxxx> This is fine with me. FWIW: Acked-by: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx> -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>