On Sat, Apr 09, 2022 at 08:16:09AM -0700, Randy Dunlap wrote:
> 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
Acked-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
> ---
> 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
