We get 1 warning when building kernel with W=1:
drivers/crypto/sunxi-ss/sun4i-ss-hash.c:168:5: warning: no previous prototype 
for 'sun4i_hash' [-Wmissing-prototypes]

In fact, this function is only used in the file in which it is
declared and don't need a declaration, but can be made static.
So this patch marks it 'static'.

Signed-off-by: Baoyou Xie <baoyou....@linaro.org>
 drivers/crypto/sunxi-ss/sun4i-ss-hash.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/sunxi-ss/sun4i-ss-hash.c 
index 1afeb8e..0de2f62 100644
--- a/drivers/crypto/sunxi-ss/sun4i-ss-hash.c
+++ b/drivers/crypto/sunxi-ss/sun4i-ss-hash.c
@@ -165,7 +165,7 @@ int sun4i_hash_import_sha1(struct ahash_request *areq, 
const void *in)
  * write remaining data in op->buf
  * final state op->len=56
-int sun4i_hash(struct ahash_request *areq)
+static int sun4i_hash(struct ahash_request *areq)
        u32 v, ivmode = 0;
        unsigned int i = 0;

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