Add a struct page forward declaration to cacheflush_32.h. Fixes this build warning: CC drivers/crypto/xilinx/zynqmp-sha.o In file included from ../arch/sparc/include/asm/cacheflush.h:11, from ../include/linux/cacheflush.h:5, from ../drivers/crypto/xilinx/zynqmp-sha.c:6: ../arch/sparc/include/asm/cacheflush_32.h:38:37: warning: 'struct page' declared inside parameter list will not be visible outside of this definition or declaration 38 | void sparc_flush_page_to_ram(struct page *page); Exposed by commit 0e03b8fd2936 ("crypto: xilinx - Turn SHA into a tristate and allow COMPILE_TEST") but not Fixes: that commit. Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Reported-by: kernel test robot <lkp@xxxxxxxxx> Cc: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Cc: David S. Miller <davem@xxxxxxxxxxxxx> Cc: Sam Ravnborg <sam@xxxxxxxxxxxx> Cc: sparclinux@xxxxxxxxxxxxxxx --- v2: use forward declaration instead of adding <linux/mm.h> (Sam) arch/sparc/include/asm/cacheflush_32.h | 1 + 1 file changed, 1 insertion(+) --- a/arch/sparc/include/asm/cacheflush_32.h +++ b/arch/sparc/include/asm/cacheflush_32.h @@ -35,6 +35,7 @@ #define flush_page_for_dma(addr) \ sparc32_cachetlb_ops->page_for_dma(addr) +struct page; void sparc_flush_page_to_ram(struct page *page); #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1