On Tue, Oct 16, 2018 at 5:01 AM Guo Ren [off-list ref] wrote:

This patch adds files related to syscall.

Signed-off-by: Guo Ren <redacted>
Cc: Arnd Bergmann <arnd@arndb.de>

Reviewed-by: Arnd Bergmann <arnd@arndb.de>

I had a detailed look at this one and provided lots of comments, however
one tiny thing escaped me:

+#define __NR_set_thread_area   (__NR_arch_specific_syscall + 0)
+__SYSCALL(__NR_set_thread_area, sys_set_thread_area)
+#define __NR_cacheflush                (__NR_arch_specific_syscall + 4)
+__SYSCALL(__NR_cacheflush, sys_cacheflush)

It's odd that the second one uses __NR_arch_specific_syscall + 4 rather
than +1. If you can still change that changing too much other stuff,
that might avoid some head-scratching later. If it causes problems,
just leave it and maybe add a comment saying that the numbers
inbetween are still available.

      Arnd