From 3b6ed8bb06d18a2855d530dcb9034e9d37114827 Mon Sep 17 00:00:00 2001
From: "kay.sievers@vrfy.org" <kay.sievers@vrfy.org>
Date: Sat, 12 Mar 2005 22:55:08 +0100
Subject: [PATCH] [PATCH] add OPTION="last_rule" to skip any later rule

---
 test/udev-test.pl  | 11 ++++++++++-
 udev_rules.c       |  6 ++++++
 udev_rules.h       |  4 +++-
 udev_rules_parse.c |  4 ++++
 4 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/test/udev-test.pl b/test/udev-test.pl
index c7e1a9d47..52c5c8d48 100644
--- a/test/udev-test.pl
+++ b/test/udev-test.pl
@@ -1115,9 +1115,18 @@ EOF
 		subsys		=> "block",
 		devpath		=> "/block/sda/sda1",
 		exp_name	=> "start-udev-root-end",
-		option		=> "clean",
 		conf		=> <<EOF
 BUS="scsi", KERNEL="sda1", NAME="start-%r-end"
+EOF
+	},
+	{
+		desc		=> "last_rule option",
+		subsys		=> "block",
+		devpath		=> "/block/sda/sda1",
+		exp_name	=> "last",
+		conf		=> <<EOF
+BUS="scsi", KERNEL="sda1", SYMLINK="last", OPTIONS="last_rule"
+BUS="scsi", KERNEL="sda1", NAME="very-last"
 EOF
 	},
 );
diff --git a/udev_rules.c b/udev_rules.c
index cbdf7de31..16f23ccb0 100644
--- a/udev_rules.c
+++ b/udev_rules.c
@@ -759,6 +759,12 @@ int udev_rules_get_name(struct udevice *udev, struct sysfs_class_device *class_d
 
 				break;
 			}
+
+			if (rule->last_rule) {
+				dbg("last rule to be applied");
+				break;
+			}
+
 		}
 	}
 
diff --git a/udev_rules.h b/udev_rules.h
index 71c510bce..42552cfa4 100644
--- a/udev_rules.h
+++ b/udev_rules.h
@@ -43,6 +43,7 @@
 #define FIELD_MODE		"MODE"
 #define FIELD_OPTIONS		"OPTIONS"
 
+#define OPTION_LAST_RULE	"last_rule"
 #define OPTION_IGNORE_DEVICE	"ignore_device"
 #define OPTION_IGNORE_REMOVE	"ignore_remove"
 #define OPTION_PARTITIONS	"all_partitions"
@@ -74,9 +75,10 @@ struct udev_rule {
 	char group[USER_SIZE];
 	mode_t mode;
 
-	int partitions;
+	int last_rule;
 	int ignore_device;
 	int ignore_remove;
+	int partitions;
 
 	char config_file[PATH_SIZE];
 	int config_line;
diff --git a/udev_rules_parse.c b/udev_rules_parse.c
index 4f431decf..f77f3db91 100644
--- a/udev_rules_parse.c
+++ b/udev_rules_parse.c
@@ -283,6 +283,10 @@ static int rules_parse(struct udevice *udev, const char *filename)
 			}
 
 			if (strcasecmp(temp2, FIELD_OPTIONS) == 0) {
+				if (strstr(temp3, OPTION_LAST_RULE) != NULL) {
+					dbg("last rule to be applied");
+					rule.last_rule = 1;
+				}
 				if (strstr(temp3, OPTION_IGNORE_DEVICE) != NULL) {
 					dbg("device should be ignored");
 					rule.ignore_device = 1;
-- 
2.30.2