X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=liblttng-ust%2Flttng-hash-helper.h;h=36c3ae4274906ea96c26886bb81293fa405e9844;hb=6ba6fd60507f8e045bdc4f1be14e9d99c6a15f7f;hp=bddc7c46729228d39e75d22cc578b67cd6ea1f64;hpb=bf956ec0051ba7f365693e194bc0aeaf4343a82c;p=lttng-ust.git

diff --git a/liblttng-ust/lttng-hash-helper.h b/liblttng-ust/lttng-hash-helper.h
index bddc7c46..36c3ae42 100644
--- a/liblttng-ust/lttng-hash-helper.h
+++ b/liblttng-ust/lttng-hash-helper.h
@@ -1,29 +1,16 @@
-#ifndef _LTTNG_HASH_HELPER_H
-#define _LTTNG_HASH_HELPER_H
-
 /*
- * lttng-hash-helper.h
- *
- * LTTng hash table helpers.
+ * SPDX-License-Identifier: LGPL-2.1-only
  *
  * Copyright (C) 2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; only
- * version 2.1 of the License.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ * LTTng hash table helpers.
  */
 
+#ifndef _LTTNG_HASH_HELPER_H
+#define _LTTNG_HASH_HELPER_H
+
 #include <assert.h>
+#include <stddef.h>
 #include <stdint.h>
 #include <urcu/compiler.h>
 
@@ -56,7 +43,10 @@ do { \
 	c ^= b; c -= rot(b, 24); \
 }
 
-static inline __attribute__((unused))
+static inline
+uint32_t lttng_hash_u32(const uint32_t *k, size_t length, uint32_t initval)
+	__attribute__((unused));
+static inline
 uint32_t lttng_hash_u32(
 	const uint32_t *k,	/* the key, an array of uint32_t values */
 	size_t length,		/* the length of the key, in uint32_ts */
@@ -115,10 +105,10 @@ void lttng_hashword2(
 
 	/*----------------------------------- handle the last 3 uint32_t's */
 	switch (length) {	/* all the case statements fall through */
-	case 3: c += k[2];
-	case 2: b += k[1];
+	case 3: c += k[2];	/* fall through */
+	case 2: b += k[1];	/* fall through */
 	case 1: a += k[0];
-		final(a, b, c);
+		final(a, b, c);	/* fall through */
 	case 0:			/* case 0: nothing left to add */
 		break;
 	}