On Wed, Jun 28, 2023 at 11:49:18AM +0200, Arnd Bergmann wrote: > From: Arnd Bergmann <arnd@xxxxxxxx> > > An otherwise correct change to the atomic operations uncovered an > existing bug in the sparc __arch_xchg() function, which is calls > __xchg_called_with_bad_pointer() when its arguments are unknown at > compile time: > > ERROR: modpost: "__xchg_called_with_bad_pointer" [lib/atomic64_test.ko] undefined! > > This now happens because gcc determines that it's better to not inline the > function. Avoid this by just marking the function as __always_inline > to force the compiler to do the right thing here. > > Reported-by: Guenter Roeck <linux@xxxxxxxxxxxx> > Link: https://lore.kernel.org/all/c525adc9-6623-4660-8718-e0c9311563b8@xxxxxxxxxxxx/ > Fixes: d12157efc8e08 ("locking/atomic: make atomic*_{cmp,}xchg optional") > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Reviewed-by: Sam Ravnborg <sam@xxxxxxxxxxxx> I assume you will find a way to apply the patch. Sam
