[ Upstream commit 04db3ede40ae4fc23a5c4237254c4a53bbe4c1f2 ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- arch/powerpc/include/asm/cacheflush.h | 7 +++++-- 1 file 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