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authorQian Cai <cai@lca.pw>2019-06-06 15:58:13 +0200
committerMichael Ellerman <mpe@ellerman.id.au>2019-07-01 08:26:55 +0200
commit04db3ede40ae4fc23a5c4237254c4a53bbe4c1f2 (patch)
tree3b5d33a744172a44bf152f8e8a299bfeb43e72f3 /arch/powerpc/include/asm/cacheflush.h
parentpowerpc/eeh_cache: fix a W=1 kernel-doc warning (diff)
downloadlinux-04db3ede40ae4fc23a5c4237254c4a53bbe4c1f2.tar.xz
linux-04db3ede40ae4fc23a5c4237254c4a53bbe4c1f2.zip
powerpc/cacheflush: fix variable set but not used
The powerpc's flush_cache_vmap() is defined as a macro and never use both of its arguments, so it will generate a compilation warning, lib/ioremap.c: In function 'ioremap_page_range': lib/ioremap.c:203:16: warning: variable 'start' set but not used [-Wunused-but-set-variable] Fix it by making it an inline function. Signed-off-by: Qian Cai <cai@lca.pw> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/cacheflush.h')
-rw-r--r--arch/powerpc/include/asm/cacheflush.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/cacheflush.h b/arch/powerpc/include/asm/cacheflush.h
index d5a8d7bf0759..b189f7aee222 100644
--- a/arch/powerpc/include/asm/cacheflush.h
+++ b/arch/powerpc/include/asm/cacheflush.h
@@ -32,9 +32,12 @@
* not expect this type of fault. flush_cache_vmap is not exactly the right
* place to put this, but it seems to work well enough.
*/
-#define flush_cache_vmap(start, end) do { asm volatile("ptesync" ::: "memory"); } while (0)
+static inline void flush_cache_vmap(unsigned long start, unsigned long end)
+{
+ asm volatile("ptesync" ::: "memory");
+}
#else
-#define flush_cache_vmap(start, end) do { } while (0)
+static inline void flush_cache_vmap(unsigned long start, unsigned long end) { }
#endif
#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1