crypto: add header include guards
Add header include guards in case they are included multiple times.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/include/crypto/sm3_base.h b/include/crypto/sm3_base.h
index 31891b0..1cbf9aa 100644
--- a/include/crypto/sm3_base.h
+++ b/include/crypto/sm3_base.h
@@ -6,6 +6,9 @@
* Written by Gilad Ben-Yossef <gilad@benyossef.com>
*/
+#ifndef _CRYPTO_SM3_BASE_H
+#define _CRYPTO_SM3_BASE_H
+
#include <crypto/internal/hash.h>
#include <crypto/sm3.h>
#include <linux/crypto.h>
@@ -104,3 +107,5 @@ static inline int sm3_base_finish(struct shash_desc *desc, u8 *out)
*sctx = (struct sm3_state){};
return 0;
}
+
+#endif /* _CRYPTO_SM3_BASE_H */
