linux-kernel - [PATCH 08/21] powerpc: Make function __giveup

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Date:   Sun, 25 Feb 2018 18:22:23 +0100
From:   Mathieu Malaterre <malat@...ian.org>
To:     Michael Ellerman <mpe@...erman.id.au>
Cc:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Jiri Slaby <jslaby@...e.com>, linuxppc-dev@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org, Mathieu Malaterre <malat@...ian.org>
Subject: [PATCH 08/21] powerpc: Make function __giveup_fpu static

When CONFIG_PPC_FPU is defined the prototype exposed in asm/switch_to.h is:

  extern void giveup_fpu(struct task_struct *);

Change the function prototype of __giveup_fpu to static. Fix warning
(treated as error in W=1):

  CC      arch/powerpc/kernel/process.o
arch/powerpc/kernel/process.c:176:6: error: no previous prototype for ‘__giveup_fpu’ [-Werror=missing-prototypes]
 void __giveup_fpu(struct task_struct *tsk)
      ^~~~~~~~~~~~
cc1: all warnings being treated as errors

Signed-off-by: Mathieu Malaterre <malat@...ian.org>
---
 arch/powerpc/kernel/process.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 1738c4127b32..3ac98c0463d6 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -173,7 +173,7 @@ void __msr_check_and_clear(unsigned long bits)
 EXPORT_SYMBOL(__msr_check_and_clear);
 
 #ifdef CONFIG_PPC_FPU
-void __giveup_fpu(struct task_struct *tsk)
+static void __giveup_fpu(struct task_struct *tsk)
 {
 	unsigned long msr;
 
-- 
2.11.0