*
  */
 
+#define KMSG_COMPONENT "aes_s390"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
 #include <crypto/aes.h>
 #include <crypto/algapi.h>
 #include <linux/err.h>
                        CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK);
 
        if (IS_ERR(sctx->fallback.cip)) {
-               printk(KERN_ERR "Error allocating fallback algo %s\n", name);
+               pr_err("Allocating AES fallback algorithm %s failed\n",
+                      name);
                return PTR_ERR(sctx->fallback.blk);
        }
 
                        CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK);
 
        if (IS_ERR(sctx->fallback.blk)) {
-               printk(KERN_ERR "Error allocating fallback algo %s\n", name);
+               pr_err("Allocating AES fallback algorithm %s failed\n",
+                      name);
                return PTR_ERR(sctx->fallback.blk);
        }
 
 
        /* z9 109 and z9 BC/EC only support 128 bit key length */
        if (keylen_flag == AES_KEYLEN_128)
-               printk(KERN_INFO
-                      "aes_s390: hardware acceleration only available for "
-                      "128 bit keys\n");
+               pr_info("AES hardware acceleration is only available for"
+                       " 128-bit keys\n");
 
        ret = crypto_register_alg(&aes_alg);
        if (ret)