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Subject[PATCH -next] mm: fix set but not used warning
Date
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@huawei.com>
---
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;


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