Re: [PATCH 7/7] powerpc: fix a problematic usage of WARN()

From: Michael Ellerman
Date: Thu Nov 26 2015 - 00:26:01 EST


On Wed, 2015-11-25 at 21:12 +0800, Geliang Tang wrote:
> WARN() takes a condition and a format string. The condition was
> omitted. So I added it.
>
> Signed-off-by: Geliang Tang <geliangtang@xxxxxxx>
> ---
> arch/powerpc/kernel/setup_64.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
> index 5c03a6a..726a9fb 100644
> --- a/arch/powerpc/kernel/setup_64.c
> +++ b/arch/powerpc/kernel/setup_64.c
> @@ -127,7 +127,7 @@ static void setup_tlb_core_data(void)
> !mmu_has_feature(MMU_FTR_USE_TLBRSRV) &&
> book3e_htw_mode != PPC_HTW_E6500) {
> /* Should we panic instead? */
> - WARN_ONCE("%s: unsupported MMU configuration -- expect problems\n",
> + WARN_ONCE(1, "%s: unsupported MMU configuration -- expect problems\n",
> __func__);
> }
> }

Oh yuck.

Acked-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>

cheers

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