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 <[email protected]>
This is fine with me. FWIW: Acked-by: Dave Hansen <[email protected]>
