Merge 4.19.19 into android-4.19

[android-x86/kernel.git] / drivers / md / dm-crypt.c

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 5921ecc..5ddbb81 100644 (file)
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -1885,6 +1885,13 @@ static int crypt_alloc_tfms_skcipher(struct crypt_config *cc, char *ciphermode)
                }
        }
 
+       /*
+        * dm-crypt performance can vary greatly depending on which crypto
+        * algorithm implementation is used.  Help people debug performance
+        * problems by logging the ->cra_driver_name.
+        */
+       DMINFO("%s using implementation \"%s\"", ciphermode,
+              crypto_skcipher_alg(any_tfm(cc))->base.cra_driver_name);
        return 0;
 }
 
@@ -1903,6 +1910,8 @@ static int crypt_alloc_tfms_aead(struct crypt_config *cc, char *ciphermode)
                return err;
        }
 
+       DMINFO("%s using implementation \"%s\"", ciphermode,
+              crypto_aead_alg(any_tfm_aead(cc))->base.cra_driver_name);
        return 0;
 }