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SubjectRe: [PATCH] powerpc/shared: include correct header for static key
* Jason A. Donenfeld <Jason@zx2c4.com> [2019-12-23 14:31:47]:

> Recently, the spinlock implementation grew a static key optimization,
> but the jump_label.h header include was left out, leading to build
> errors:
>
> linux/arch/powerpc/include/asm/spinlock.h:44:7: error: implicit declaration of function ???static_branch_unlikely??? [-Werror=implicit-function-declaration]
> 44 | if (!static_branch_unlikely(&shared_processor))
>
> This commit adds the missing header.

Right, This was in v4 version of the patchset
(http://lkml.kernel.org/r/20191212085344.17357-1-srikar@linux.vnet.ibm.com)
but we missed it in the final v5 version.

Thanks for noticing and fixing it.

Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>

>
> Fixes: 656c21d6af5d ("powerpc/shared: Use static key to detect shared processor")
> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
> ---
> arch/powerpc/include/asm/spinlock.h | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/powerpc/include/asm/spinlock.h b/arch/powerpc/include/asm/spinlock.h
> index 1b55fc08f853..860228e917dc 100644
> --- a/arch/powerpc/include/asm/spinlock.h
> +++ b/arch/powerpc/include/asm/spinlock.h
> @@ -15,6 +15,7 @@
> *
> * (the type definitions are in asm/spinlock_types.h)
> */
> +#include <linux/jump_label.h>
> #include <linux/irqflags.h>
> #ifdef CONFIG_PPC64
> #include <asm/paca.h>
> --
> 2.24.1
>

--
Thanks and Regards
Srikar Dronamraju

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