CephxProtocol.h: pass CryptoKey by reference to decode_decrypt()

Fix issues found by cppcheck:

[src/auth/cephx/CephxProtocol.h:469]: (performance) Function
  parameter 'key' should be passed by reference.

Pass CryptoKey by reference as already done in encode_encrypt().

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>

diff --git a/src/auth/cephx/CephxProtocol.h b/src/auth/cephx/CephxProtocol.h
index 38e0616b501ed242e22e094b256828b0d8db6e7f..9386a410f95d8e0706bd67c474535c35511f94fe 100644 (file)
--- a/src/auth/cephx/CephxProtocol.h
+++ b/src/auth/cephx/CephxProtocol.h
@@ -466,7 +466,7 @@ void encode_encrypt_enc_bl(CephContext *cct, const T& t, const CryptoKey& key,
 }
 
 template <typename T>
-int decode_decrypt(CephContext *cct, T& t, const CryptoKey key,
+int decode_decrypt(CephContext *cct, T& t, const CryptoKey& key,
                    bufferlist::iterator& iter, std::string &error)
 {
   bufferlist bl_enc;