fix default-name handling and NAME="" rules

Signed-off-by: Kay Sievers <kay.sievers@suse.de>

diff --git a/udev.h b/udev.h
index a8be0ed4005d1cda9434db6aa7522edcbeba6a64..391dc2c41c06860c55c625979c358cc6601a27ca 100644 (file)
--- a/udev.h
+++ b/udev.h
@@ -55,7 +55,6 @@ struct udevice {
 
        enum device_type type;
        char name[PATH_SIZE];
-       int name_set;
        char devname[PATH_SIZE];
        struct list_head symlink_list;
        int symlink_final;

diff --git a/udev_rules.c b/udev_rules.c
index 932a5b9c6fa9330ddd2797aef4ff3858c536fd09..27fb0a89a607065207e689d995f07433314b4b83 100644 (file)
--- a/udev_rules.c
+++ b/udev_rules.c
@@ -857,6 +857,7 @@ int udev_rules_get_name(struct udev_rules *rules, struct udevice *udev, struct s
        struct sysfs_class_device *class_dev_parent;
        struct sysfs_device *sysfs_device = NULL;
        struct udev_rule *rule;
+       int name_set = 0;
 
        dbg("class_dev->name='%s'", class_dev->name);
 
@@ -888,7 +889,7 @@ int udev_rules_get_name(struct udev_rules *rules, struct udevice *udev, struct s
                if (rule == NULL)
                        break;
 
-               if (udev->name_set && rule->name.operation != KEY_OP_UNSET) {
+               if (name_set && rule->name.operation != KEY_OP_UNSET) {
                        dbg("node name already set, rule ignored");
                        continue;
                }
@@ -970,7 +971,7 @@ int udev_rules_get_name(struct udev_rules *rules, struct udevice *udev, struct s
 
                        /* set name, later rules with name set will be ignored */
                        if (rule->name.operation != KEY_OP_UNSET) {
-                               udev->name_set = 1;
+                               name_set = 1;
                                strlcpy(udev->name, key_val(rule, &rule->name), sizeof(udev->name));
                                apply_format(udev, udev->name, sizeof(udev->name), class_dev, sysfs_device);
 
@@ -1008,7 +1009,7 @@ int udev_rules_get_name(struct udev_rules *rules, struct udevice *udev, struct s
                }
        }
 
-       if (udev->name[0] == '\0') {
+       if (!name_set) {
                strlcpy(udev->name, udev->kernel_name, sizeof(udev->name));
                info("no rule found, will use kernel name '%s'", udev->name);
        }

diff --git a/udev_rules_parse.c b/udev_rules_parse.c
index 2add91fa9fad720f407cb9bce4db16a528931c7e..0021ec40be481eb14572978cde8a1b4492caba1a 100644 (file)
--- a/udev_rules_parse.c
+++ b/udev_rules_parse.c
@@ -365,7 +365,12 @@ static int add_to_rules(struct udev_rules *rules, char *line)
                                        rule->ignore_remove = 1;
                                }
                        }
-                       add_rule_key(rule, &rule->name, operation, value);
+                       if (value[0] == '\0') {
+                               dbg("name empty device should be ignored");
+                               rule->name.operation = operation;
+                               rule->ignore_device = 1;
+                       } else
+                               add_rule_key(rule, &rule->name, operation, value);
                        continue;
                }