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SubjectRe: [PATCH] powerpc: platforms: cell: pervasive: fix clang -Wimplicit-fallthrough
On Tue, Dec 07, 2021 at 12:02:28PM +0100, Anders Roxell wrote:
> Clang warns:
>
> arch/powerpc/platforms/cell/pervasive.c:81:2: error: unannotated fall-through between switch labels [-Werror,-Wimplicit-fallthrough]
> case SRR1_WAKEEE:
> ^
> arch/powerpc/platforms/cell/pervasive.c:81:2: note: insert 'break;' to avoid fall-through
> case SRR1_WAKEEE:
> ^
> break;
> 1 error generated.
>
> Clang is more pedantic than GCC, which does not warn when failing
> through to a case that is just break or return. Clang's version
> is more in line with the kernel's own stance in deprecated.rst.
> Add athe missing break to silence the warning.

^ small typo, probably not worth a resend

>
> Fixes: 6e83985b0f6e ("powerpc/cbe: Do not process external or decremeter interrupts from sreset")
> Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
> Signed-off-by: Anders Roxell <anders.roxell@linaro.org>

Reviewed-by: Nathan Chancellor <nathan@kernel.org>

> ---
> arch/powerpc/platforms/cell/pervasive.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/powerpc/platforms/cell/pervasive.c b/arch/powerpc/platforms/cell/pervasive.c
> index 5b9a7e9f144b..dff8d5e7ab82 100644
> --- a/arch/powerpc/platforms/cell/pervasive.c
> +++ b/arch/powerpc/platforms/cell/pervasive.c
> @@ -78,6 +78,7 @@ static int cbe_system_reset_exception(struct pt_regs *regs)
> switch (regs->msr & SRR1_WAKEMASK) {
> case SRR1_WAKEDEC:
> set_dec(1);
> + break;
> case SRR1_WAKEEE:
> /*
> * Handle these when interrupts get re-enabled and we take
> --
> 2.33.0
>

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