On Mon, 2019-02-18 at 13:57 +0000, YueHaibing wrote:
> Fixes gcc '-Wunused-but-set-variable' 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]
>
> flush_cache_vmap may no need param, so add __maybe_unused fix this warning.
I think flush_cache_vmap should have a proper prototype with
__maybe_unused for its args. But, there are so many arch-specific
definitions at glace, and I am not sure how manageable such change is,
though...
Thanks,
-Toshi
>
> Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
> ---
> lib/ioremap.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/lib/ioremap.c b/lib/ioremap.c
> index 063213685563..d1c7a488e731 100644
> --- a/lib/ioremap.c
> +++ b/lib/ioremap.c
> @@ -200,7 +200,7 @@ int ioremap_page_range(unsigned long addr,
> unsigned long end, phys_addr_t phys_addr, pgprot_t prot)
> {
> pgd_t *pgd;
> - unsigned long start;
> + unsigned long __maybe_unused start;
> unsigned long next;
> int err;
>
>
>
