Excerpts from Christophe Leroy's message of February 24, 2021 4:34 pm:
> As reported by kernel test robot, a randconfig with high amount of
> debuging options can lead to build failure for undefined reference
> to replay_soft_interrupts() on ppc32.
>
> This is due to gcc not seeing that __prep_irq_for_enabled_exit()
> always returns true on ppc32 because it doesn't inline it for
> some reason.
>
> Force inlining of __prep_irq_for_enabled_exit() to fix the build.
>
> Reported-by: kernel test robot <l...@intel.com>
> Signed-off-by: Christophe Leroy <christophe.le...@csgroup.eu>
Acked-by: Nicholas Piggin <npig...@gmail.com>
> Fixes: 344bb20b159d ("powerpc/syscall: Make interrupt.c buildable on PPC32")
> ---
> arch/powerpc/kernel/interrupt.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/powerpc/kernel/interrupt.c b/arch/powerpc/kernel/interrupt.c
> index 398cd86b6ada..2ef3c4051bb9 100644
> --- a/arch/powerpc/kernel/interrupt.c
> +++ b/arch/powerpc/kernel/interrupt.c
> @@ -149,7 +149,7 @@ notrace long system_call_exception(long r3, long r4, long
> r5,
> * enabled when the interrupt handler returns (indicating a process-context /
> * synchronous interrupt) then irqs_enabled should be true.
> */
> -static notrace inline bool __prep_irq_for_enabled_exit(bool clear_ri)
> +static notrace __always_inline bool __prep_irq_for_enabled_exit(bool
> clear_ri)
> {
> /* This must be done with RI=1 because tracing may touch vmaps */
> trace_hardirqs_on();
> --
> 2.25.0
>
>
