On Tue, Jul 11, 2023, at 13:25, Alexey Gladkov wrote:
From: Palmer Dabbelt <palmer@xxxxxxxxxx> This registers the new fchmodat4 syscall in most places as nuber 451, with alpha being the exception where it's 561. I found all these sites by grepping for fspick, which I assume has found me everything. Signed-off-by: Palmer Dabbelt <palmer@xxxxxxxxxx> Signed-off-by: Alexey Gladkov <legion@xxxxxxxxxx>
In linux-6.5-rc1, number 451 is used for __NR_cachestat, the next free one at the moment is 452.
arch/arm/tools/syscall.tbl | 1 + arch/arm64/include/asm/unistd32.h | 2 ++
Unfortunately, you still also need to change __NR_compat_syscalls in arch/arm64/include/asm/unistd.h. Aside from these two issues, your patch is the correct way to hook up a new syscall. Arnd