linux-kernel - [PATCH 5/6] powerpc: Remove 'extern' from func prototypes in cache headers

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Message-Id: <20190815041057.13627-6-alastair@au1.ibm.com>
Date:   Thu, 15 Aug 2019 14:10:50 +1000
From:   "Alastair D'Silva" <alastair@....ibm.com>
To:     alastair@...ilva.org
Cc:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Christophe Leroy <christophe.leroy@....fr>,
        Allison Randal <allison@...utok.net>,
        Thomas Gleixner <tglx@...utronix.de>, Qian Cai <cai@....pw>,
        Nicholas Piggin <npiggin@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        David Hildenbrand <david@...hat.com>,
        Mike Rapoport <rppt@...ux.vnet.ibm.com>,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: [PATCH 5/6] powerpc: Remove 'extern' from func prototypes in cache headers

From: Alastair D'Silva <alastair@...ilva.org>

The 'extern' keyword does not value-add for function prototypes.

Signed-off-by: Alastair D'Silva <alastair@...ilva.org>
---
 arch/powerpc/include/asm/cache.h      | 8 ++++----
 arch/powerpc/include/asm/cacheflush.h | 6 +++---
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h
index 728f154204db..c5c096e968e0 100644
--- a/arch/powerpc/include/asm/cache.h
+++ b/arch/powerpc/include/asm/cache.h
@@ -102,10 +102,10 @@ static inline u32 l1_icache_bytes(void)
 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
 
 #ifdef CONFIG_PPC_BOOK3S_32
-extern long _get_L2CR(void);
-extern long _get_L3CR(void);
-extern void _set_L2CR(unsigned long);
-extern void _set_L3CR(unsigned long);
+long _get_L2CR(void);
+long _get_L3CR(void);
+void _set_L2CR(unsigned long val);
+void _set_L3CR(unsigned long val);
 #else
 #define _get_L2CR()	0L
 #define _get_L3CR()	0L
diff --git a/arch/powerpc/include/asm/cacheflush.h b/arch/powerpc/include/asm/cacheflush.h
index 4c3377aff8ed..1826bf2cc137 100644
--- a/arch/powerpc/include/asm/cacheflush.h
+++ b/arch/powerpc/include/asm/cacheflush.h
@@ -38,15 +38,15 @@ static inline void flush_cache_vmap(unsigned long start, unsigned long end) { }
 #endif
 
 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
-extern void flush_dcache_page(struct page *page);
+void flush_dcache_page(struct page *page);
 #define flush_dcache_mmap_lock(mapping)		do { } while (0)
 #define flush_dcache_mmap_unlock(mapping)	do { } while (0)
 
 void flush_icache_range(unsigned long start, unsigned long stop);
-extern void flush_icache_user_range(struct vm_area_struct *vma,
+void flush_icache_user_range(struct vm_area_struct *vma,
 				    struct page *page, unsigned long addr,
 				    int len);
-extern void flush_dcache_icache_page(struct page *page);
+void flush_dcache_icache_page(struct page *page);
 
 /**
  * flush_dcache_range(): Write any modified data cache blocks out to memory and invalidate them.
-- 
2.21.0