Re: [PATCH v2 1/2] powerpc/powermac: add missing g5_phy_disable_cpu1() declaration

On 23/09/2021 15:21, Michael Ellerman wrote:

Krzysztof Kozlowski [off-list ref] writes:

quoted

g5_phy_disable_cpu1() is used outside of platforms/powermac/feature.c,
so it should have a declaration to fix W=1 warning:

  arch/powerpc/platforms/powermac/feature.c:1533:6:
    error: no previous prototype for ‘g5_phy_disable_cpu1’ [-Werror=missing-prototypes]

Signed-off-by: Krzysztof Kozlowski <redacted>

---

Changes since v1:
1. Drop declaration in powermac/smp.c

Sorry I missed v1, so I'm going to ask for more changes :}

quoted

 arch/powerpc/include/asm/pmac_feature.h | 4 ++++

Putting it here exposes it to the whole kernel, but it's only needed
inside arch/powerpc/platforms/powermac.

The right place for the prototype is arch/powerpc/platforms/powermac/pmac.h,
which is for platform internal prototypes.

I'll fix it up.

quoted

 arch/powerpc/platforms/powermac/smp.c   | 2 --
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/include/asm/pmac_feature.h b/arch/powerpc/include/asm/pmac_feature.h
index e08e829261b6..7703e5bf1203 100644
--- a/arch/powerpc/include/asm/pmac_feature.h
+++ b/arch/powerpc/include/asm/pmac_feature.h

@@ -143,6 +143,10 @@
  */
 struct device_node;
 
+#ifdef CONFIG_PPC64
+void g5_phy_disable_cpu1(void);
+#endif /* CONFIG_PPC64 */

The ifdef around the prototype doesn't gain much, and is extra visual
noise, so I'd rather without it.

Sure.


Best regards,
Krzysztof