Hi Thorsten, On Tue, Jul 2, 2024 at 5:42 AM Thorsten Blum <thorsten.blum@xxxxxxxxxx> wrote:
The return value of __invalid_xchg_size() is assigned to tmp instead of the return variable x. Assign it to x instead.
Thanks for your patch!
Fixes: 803f69144f0d ("Disintegrate asm/system.h for M68K")
That is not the right commit. The issue was introduced before: Fixes: 2501cf768e4009a0 ("m68k: Fix xchg/cmpxchg to fail to link if given an inappropriate pointer")
Signed-off-by: Thorsten Blum <thorsten.blum@xxxxxxxxxx>
--- a/arch/m68k/include/asm/cmpxchg.h +++ b/arch/m68k/include/asm/cmpxchg.h @@ -32,7 +32,7 @@ static inline unsigned long __arch_xchg(unsigned long x, volatile void * ptr, in x = tmp; break; default: - tmp = __invalid_xchg_size(x, ptr, size); + x = __invalid_xchg_size(x, ptr, size); break; }
Although this was not a real bug (__invalid_xchg_size() does not exist, but is referenced to cause a deliberate link error), it is good to clean this up. Reviewed-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> i.e. will queue in the m68k tree for v6.11. Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds