[PATCH] add documentation for the new '%k' modifier (kernel name replacement)

[elogind.git] / namedev.c

diff --git a/namedev.c b/namedev.c
index 5044870d32a582a20a772612970faad714201dd3..d879fd55902eb55259fa04e162c180ad9b0e63c4 100644 (file)
--- a/namedev.c
+++ b/namedev.c
@@ -102,40 +102,6 @@ static int strcmp_pattern(const char *p, const char *s)
        if (strlen(b->var))             \
                strcpy(a->var, b->var);
 
-int add_config_dev(struct config_device *new_dev)
-{
-       struct list_head *tmp;
-       struct config_device *tmp_dev;
-
-       /* update the values if we already have the device */
-       list_for_each(tmp, &config_device_list) {
-               struct config_device *dev = list_entry(tmp, struct config_device, node);
-               if (strcmp_pattern(new_dev->name, dev->name))
-                       continue;
-               if (strncmp(dev->bus, new_dev->bus, sizeof(dev->name)))
-                       continue;
-               copy_var(dev, new_dev, type);
-               copy_string(dev, new_dev, bus);
-               copy_string(dev, new_dev, sysfs_file);
-               copy_string(dev, new_dev, sysfs_value);
-               copy_string(dev, new_dev, id);
-               copy_string(dev, new_dev, place);
-               copy_string(dev, new_dev, kernel_name);
-               copy_string(dev, new_dev, exec_program);
-               copy_string(dev, new_dev, symlink);
-               return 0;
-       }
-
-       /* not found, add new structure to the device list */
-       tmp_dev = malloc(sizeof(*tmp_dev));
-       if (!tmp_dev)
-               return -ENOMEM;
-       memcpy(tmp_dev, new_dev, sizeof(*tmp_dev));
-       list_add_tail(&tmp_dev->node, &config_device_list);
-       //dump_config_dev(tmp_dev);
-       return 0;
-}
-
 int add_perm_dev(struct perm_device *new_dev)
 {
        struct list_head *tmp;
@@ -453,12 +419,50 @@ static int do_callout(struct sysfs_class_device *class_dev, struct udevice *udev
        return -ENODEV;
 }
 
-static int do_label(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
+static int match_pair(struct sysfs_class_device *class_dev, struct sysfs_device *sysfs_device, struct sysfs_pair *pair)
 {
        struct sysfs_attribute *tmpattr = NULL;
+       char *c;
+
+       if ((pair == NULL) || (pair->file[0] == '\0') || (pair->value == '\0'))
+               return -ENODEV;
+
+       dbg("look for device attribute '%s'", pair->file);
+       /* try to find the attribute in the class device directory */
+       tmpattr = sysfs_get_classdev_attr(class_dev, pair->file);
+       if (tmpattr)
+               goto label_found;
+
+       /* look in the class device directory if present */
+       if (sysfs_device) {
+               tmpattr = sysfs_get_device_attr(sysfs_device, pair->file);
+               if (tmpattr)
+                       goto label_found;
+       }
+
+       return -ENODEV;
+
+label_found:
+       c = tmpattr->value + strlen(tmpattr->value)-1;
+       if (*c == '\n')
+               *c = 0x00;
+       dbg("compare attribute '%s' value '%s' with '%s'",
+                 pair->file, tmpattr->value, pair->value);
+       if (strcmp_pattern(pair->value, tmpattr->value) != 0)
+               return -ENODEV;
+
+       dbg("found matching attribute '%s' with value '%s'",
+           pair->file, pair->value);
+       return 0;
+}
+
+static int do_label(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
+{
+       struct sysfs_pair *pair;
        struct config_device *dev;
        struct list_head *tmp;
-       char *c;
+       int i;
+       int match;
 
        list_for_each(tmp, &config_device_list) {
                dev = list_entry(tmp, struct config_device, node);
@@ -471,34 +475,24 @@ static int do_label(struct sysfs_class_device *class_dev, struct udevice *udev,
                                continue;
                }
 
-               dbg("look for device attribute '%s'", dev->sysfs_file);
-               /* try to find the attribute in the class device directory */
-               tmpattr = sysfs_get_classdev_attr(class_dev, dev->sysfs_file);
-               if (tmpattr)
-                       goto label_found;
-
-               /* look in the class device directory if present */
-               if (sysfs_device) {
-                       tmpattr = sysfs_get_device_attr(sysfs_device, dev->sysfs_file);
-                       if (tmpattr)
-                               goto label_found;
+               match = 1;
+               for (i = 0; i < MAX_SYSFS_PAIRS; ++i) {
+                       pair = &dev->sysfs_pair[i];
+                       if ((pair->file[0] == '\0') || (pair->value[0] == '\0'))
+                               break;
+                       if (match_pair(class_dev, sysfs_device, pair) != 0) {
+                               match = 0;
+                               break;
+                       }
                }
-
-               continue;
-
-label_found:
-               c = tmpattr->value + strlen(tmpattr->value)-1;
-               if (*c == '\n')
-                       *c = 0x00;
-               dbg("compare attribute '%s' value '%s' with '%s'",
-                         dev->sysfs_file, tmpattr->value, dev->sysfs_value);
-               if (strcmp_pattern(dev->sysfs_value, tmpattr->value) != 0)
+               if (match == 0)
                        continue;
 
+               /* found match */
                strfieldcpy(udev->name, dev->name);
                strfieldcpy(udev->symlink, dev->symlink);
-               dbg("found matching attribute '%s', '%s' becomes '%s' ",
-                   dev->sysfs_file, class_dev->name, udev->name);
+               dbg("found matching attribute, '%s' becomes '%s' ",
+                   class_dev->name, udev->name);
 
                return 0;
        }