SUNRPC: Make krb5 report unsupported encryption types

 Print messages when an unsupported encrytion algorthm is requested or
 there is an error locating a supported algorthm.

 Signed-off-by: Kevin Coffman <kwc@citi.umich.edu>
 Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 7 insertions, 3 deletions

diff --git a/net/sunrpc/auth_gss/gss_krb5_mech.c b/net/sunrpc/auth_gss/gss_krb5_mech.c
index 5f1f806a0b11..129e2bd36aff 100644
--- a/net/sunrpc/auth_gss/gss_krb5_mech.c
+++ b/net/sunrpc/auth_gss/gss_krb5_mech.c
@@ -97,13 +97,17 @@ get_key(const void *p, const void *end, struct crypto_tfm **res)
                         alg_mode = CRYPTO_TFM_MODE_CBC;
                         break;
                 default:
-                        dprintk("RPC:      get_key: unsupported algorithm %d\n", alg);
+                        printk("gss_kerberos_mech: unsupported algorithm %d\n", alg);
                         goto out_err_free_key;
         }
-        if (!(*res = crypto_alloc_tfm(alg_name, alg_mode)))
+        if (!(*res = crypto_alloc_tfm(alg_name, alg_mode))) {
+                printk("gss_kerberos_mech: unable to initialize crypto algorithm %s\n", alg_name);
                 goto out_err_free_key;
-        if (crypto_cipher_setkey(*res, key.data, key.len))
+        }
+        if (crypto_cipher_setkey(*res, key.data, key.len)) {
+                printk("gss_kerberos_mech: error setting key for crypto algorithm %s\n", alg_name);
                 goto out_err_free_tfm;
+        }
 
         kfree(key.data);
         return p;