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. 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;