crypto: mxs - Fix sparse non static symbol warning
Fixes the following sparse warning:
drivers/crypto/mxs-dcp.c:103:1: warning:
symbol 'global_mutex' was not declared. Should it be static?
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/drivers/crypto/mxs-dcp.c b/drivers/crypto/mxs-dcp.c
index d41917c..a6db7fa 100644
--- a/drivers/crypto/mxs-dcp.c
+++ b/drivers/crypto/mxs-dcp.c
@@ -100,7 +100,7 @@
* design of Linux Crypto API.
*/
static struct dcp *global_sdcp;
-DEFINE_MUTEX(global_mutex);
+static DEFINE_MUTEX(global_mutex);
/* DCP register layout. */
#define MXS_DCP_CTRL 0x00