On 2021/2/8 5:51, Arnd Bergmann wrote: > On Sun, Feb 7, 2021 at 9:18 AM Zhou Wang <wangzhou1@xxxxxxxxxxxxx> wrote: > >> diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h >> index cccfbbe..3f49529 100644 >> --- a/arch/arm64/include/asm/unistd32.h >> +++ b/arch/arm64/include/asm/unistd32.h >> @@ -891,6 +891,8 @@ __SYSCALL(__NR_faccessat2, sys_faccessat2) >> __SYSCALL(__NR_process_madvise, sys_process_madvise) >> #define __NR_epoll_pwait2 441 >> __SYSCALL(__NR_epoll_pwait2, compat_sys_epoll_pwait2) >> +#define __NR_mempinfd 442 >> +__SYSCALL(__NR_mempinfd, sys_mempinfd) > > This adds a compat syscall for 32-bit tasks running on arm64 without adding > the same for the native arch/arm syscall table. Those two need to always > stay synchronized. In fact, new system call should ideally get assigned > on all architectures at the same time, with the same number (or +110 > on arch/alpha). Thank for pointing out this. I use an ARM64 machine to test, so currently only add it for ARM64 :) Best, Zhou > > Arnd > > . >
