From: Arnd Bergmann <arnd@xxxxxxxx> The two cache management functions are declared in libnvdimm.h but provided by architecture specific code. Without including the header, this causes a W=1 warning: arch/arm64/mm/flush.c:96:6: error: no previous prototype for 'arch_wb_cache_pmem' [-Werror=missing-prototypes] arch/arm64/mm/flush.c:104:6: error: no previous prototype for 'arch_invalidate_pmem' [-Werror=missing-prototypes] Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> --- arch/arm64/mm/flush.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/mm/flush.c b/arch/arm64/mm/flush.c index 5f9379b3c8c8..4e6476094952 100644 --- a/arch/arm64/mm/flush.c +++ b/arch/arm64/mm/flush.c @@ -8,6 +8,7 @@ #include <linux/export.h> #include <linux/mm.h> +#include <linux/libnvdimm.h> #include <linux/pagemap.h> #include <asm/cacheflush.h> -- 2.39.2