rpc: gss: eliminate print_hexl()'s

Dumping all this data to the logs is wasteful (even when debugging is turned
off), and creates too much output to be useful when it's turned on.

Fix a minor style bug or two while we're at it.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

include/linux/sunrpc/auth_gss.h

@@ -90,8 +90,6 @@ struct gss_cred {
 #define gc_flags		gc_base.cr_flags
 #define gc_expire		gc_base.cr_expire
 
-void print_hexl(u32 *p, u_int length, u_int offset);
-
 #endif /* __KERNEL__ */
 #endif /* _LINUX_SUNRPC_AUTH_GSS_H */
 

net/sunrpc/auth_gss/auth_gss.c

@@ -94,46 +94,6 @@ struct gss_auth {
 static void gss_destroy_ctx(struct gss_cl_ctx *);
 static struct rpc_pipe_ops gss_upcall_ops;
 
-void
-print_hexl(u32 *p, u_int length, u_int offset)
-{
-	u_int i, j, jm;
-	u8 c, *cp;
-	
-	dprintk("RPC: print_hexl: length %d\n",length);
-	dprintk("\n");
-	cp = (u8 *) p;
-	
-	for (i = 0; i < length; i += 0x10) {
-		dprintk("  %04x: ", (u_int)(i + offset));
-		jm = length - i;
-		jm = jm > 16 ? 16 : jm;
-		
-		for (j = 0; j < jm; j++) {
-			if ((j % 2) == 1)
-				dprintk("%02x ", (u_int)cp[i+j]);
-			else
-				dprintk("%02x", (u_int)cp[i+j]);
-		}
-		for (; j < 16; j++) {
-			if ((j % 2) == 1)
-				dprintk("   ");
-			else
-				dprintk("  ");
-		}
-		dprintk(" ");
-		
-		for (j = 0; j < jm; j++) {
-			c = cp[i+j];
-			c = isprint(c) ? c : '.';
-			dprintk("%c", c);
-		}
-		dprintk("\n");
-	}
-}
-
-EXPORT_SYMBOL(print_hexl);
-
 static inline struct gss_cl_ctx *
 gss_get_ctx(struct gss_cl_ctx *ctx)
 {

net/sunrpc/auth_gss/gss_krb5_crypto.c

@@ -61,9 +61,6 @@ krb5_encrypt(
 	u8 local_iv[16] = {0};
 	struct blkcipher_desc desc = { .tfm = tfm, .info = local_iv };
 
-	dprintk("RPC:      krb5_encrypt: input data:\n");
-	print_hexl((u32 *)in, length, 0);
-
 	if (length % crypto_blkcipher_blocksize(tfm) != 0)
 		goto out;
 
@@ -80,12 +77,9 @@ krb5_encrypt(
 	sg_set_buf(sg, out, length);
 
 	ret = crypto_blkcipher_encrypt_iv(&desc, sg, sg, length);
-
-	dprintk("RPC:      krb5_encrypt: output data:\n");
-	print_hexl((u32 *)out, length, 0);
 out:
 	dprintk("RPC:      krb5_encrypt returns %d\n",ret);
-	return(ret);
+	return ret;
 }
 
 EXPORT_SYMBOL(krb5_encrypt);
@@ -103,9 +97,6 @@ krb5_decrypt(
 	u8 local_iv[16] = {0};
 	struct blkcipher_desc desc = { .tfm = tfm, .info = local_iv };
 
-	dprintk("RPC:      krb5_decrypt: input data:\n");
-	print_hexl((u32 *)in, length, 0);
-
 	if (length % crypto_blkcipher_blocksize(tfm) != 0)
 		goto out;
 
@@ -121,12 +112,9 @@ krb5_decrypt(
 	sg_set_buf(sg, out, length);
 
 	ret = crypto_blkcipher_decrypt_iv(&desc, sg, sg, length);
-
-	dprintk("RPC:      krb5_decrypt: output_data:\n");
-	print_hexl((u32 *)out, length, 0);
 out:
 	dprintk("RPC:      gss_k5decrypt returns %d\n",ret);
-	return(ret);
+	return ret;
 }
 
 EXPORT_SYMBOL(krb5_decrypt);

net/sunrpc/auth_gss/gss_krb5_seal.c

@@ -129,9 +129,6 @@ gss_get_mic_kerberos(struct gss_ctx *gss_ctx, struct xdr_buf *text,
 		memcpy(krb5_hdr + 16,
 		       md5cksum.data + md5cksum.len - KRB5_CKSUM_LENGTH,
 		       KRB5_CKSUM_LENGTH);
-
-		dprintk("RPC:      make_seal_token: cksum data: \n");
-		print_hexl((u32 *) (krb5_hdr + 16), KRB5_CKSUM_LENGTH, 0);
 		break;
 	default:
 		BUG();

net/sunrpc/auth_gss/gss_krb5_wrap.c

@@ -199,9 +199,6 @@ gss_wrap_kerberos(struct gss_ctx *ctx, int offset,
 		memcpy(krb5_hdr + 16,
 		       md5cksum.data + md5cksum.len - KRB5_CKSUM_LENGTH,
 		       KRB5_CKSUM_LENGTH);
-
-		dprintk("RPC:      make_seal_token: cksum data: \n");
-		print_hexl((u32 *) (krb5_hdr + 16), KRB5_CKSUM_LENGTH, 0);
 		break;
 	default:
 		BUG();

net/sunrpc/auth_gss/gss_spkm3_unseal.c

@@ -103,10 +103,6 @@ spkm3_read_token(struct spkm3_ctx *ctx,
 
 		dprintk("RPC: spkm3_read_token: digest wire_cksum.len %d:\n", 
 			wire_cksum.len);
-		dprintk("          md5cksum.data\n");
-		print_hexl((u32 *) md5cksum.data, 16, 0);
-		dprintk("          cksum.data:\n");
-		print_hexl((u32 *) wire_cksum.data, wire_cksum.len, 0);
 
 		ret = GSS_S_BAD_SIG;
 		code = memcmp(md5cksum.data, wire_cksum.data, wire_cksum.len);