X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=common%2Fenv_callback.c;h=f4d3dbd77fa6c311d16927dc517960d26c533a2c;hb=332532c7ce93b79621bc5b96df3a790827e5b2fe;hp=78ca3674f09a85d5834bae0e2bb4d3a1427b07d3;hpb=7528cf5f016b5b8b8b12b373f6f31a10bf89233d;p=karo-tx-uboot.git

diff --git a/common/env_callback.c b/common/env_callback.c
index 78ca3674f0..f4d3dbd77f 100644
--- a/common/env_callback.c
+++ b/common/env_callback.c
@@ -2,23 +2,7 @@
  * (C) Copyright 2012
  * Joe Hershberger, National Instruments, joe.hershberger@ni.com
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
@@ -31,7 +15,7 @@ DECLARE_GLOBAL_DATA_PTR;
 /*
  * Look up a callback function pointer by name
  */
-struct env_clbk_tbl *find_env_callback(const char *name)
+static struct env_clbk_tbl *find_env_callback(const char *name)
 {
 	struct env_clbk_tbl *clbkp;
 	int i;
@@ -51,6 +35,9 @@ struct env_clbk_tbl *find_env_callback(const char *name)
 	return NULL;
 }
 
+static int first_call = 1;
+static const char *callback_list;
+
 /*
  * Look for a possible callback for a newly added variable
  * This is called specifically when the variable did not exist in the hash
@@ -59,11 +46,15 @@ struct env_clbk_tbl *find_env_callback(const char *name)
 void env_callback_init(ENTRY *var_entry)
 {
 	const char *var_name = var_entry->key;
-	const char *callback_list = getenv(ENV_CALLBACK_VAR);
 	char callback_name[256] = "";
 	struct env_clbk_tbl *clbkp;
 	int ret = 1;
 
+	if (first_call) {
+		callback_list = getenv(ENV_CALLBACK_VAR);
+		first_call = 0;
+	}
+
 	/* look in the ".callbacks" var for a reference to this variable */
 	if (callback_list != NULL)
 		ret = env_attr_lookup(callback_list, var_name, callback_name);
@@ -99,7 +90,7 @@ static int clear_callback(ENTRY *entry)
 /*
  * Call for each element in the list that associates variables to callbacks
  */
-static int set_callback(const char *name, const char *value)
+static int set_callback(const char *name, const char *value, void *priv)
 {
 	ENTRY e, *ep;
 	struct env_clbk_tbl *clbkp;
@@ -135,9 +126,9 @@ static int on_callbacks(const char *name, const char *value, enum env_op op,
 	hwalk_r(&env_htab, clear_callback);
 
 	/* configure any static callback bindings */
-	env_attr_walk(ENV_CALLBACK_LIST_STATIC, set_callback);
+	env_attr_walk(ENV_CALLBACK_LIST_STATIC, set_callback, NULL);
 	/* configure any dynamic callback bindings */
-	env_attr_walk(value, set_callback);
+	env_attr_walk(value, set_callback, NULL);
 
 	return 0;
 }