On Wed, Oct 17, 2018 at 05:02:33PM +0200, Arnd Bergmann wrote: > On Tue, Oct 16, 2018 at 5:01 AM Guo Ren <ren_guo@xxxxxxxxx> wrote: > > > > This patch adds files related to syscall. > > > > Signed-off-by: Guo Ren <ren_guo@xxxxxxxxx> > > Cc: Arnd Bergmann <arnd@xxxxxxxx> > > Reviewed-by: Arnd Bergmann <arnd@xxxxxxxx> > > 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. Change to (__NR_arch_specific_syscall + 1) is ok for now. Best Regards Guo Ren