diff --git a/config/udev.c b/config/udev.c
index b00d90237..14409549b 100644
--- a/config/udev.c
+++ b/config/udev.c
@@ -464,31 +464,6 @@ config_udev_fini(void)
 
 #ifdef CONFIG_UDEV_KMS
 
-/* Find the last occurrence of the needle in haystack */
-static char *strrstr(const char *haystack, const char *needle)
-{
-    char *prev, *last, *tmp;
-
-    prev = strstr(haystack, needle);
-    if (!prev)
-        return NULL;
-
-    last = prev;
-    tmp = prev + 1;
-
-    while (tmp) {
-        last = strstr(tmp, needle);
-        if (!last)
-            return prev;
-        else {
-            prev = last;
-            tmp = prev + 1;
-        }
-    }
-
-    return last;
-}
-
 static void
 config_udev_odev_setup_attribs(struct udev_device *udev_device, const char *path, const char *syspath,
                                int major, int minor,
@@ -503,7 +478,7 @@ config_udev_odev_setup_attribs(struct udev_device *udev_device, const char *path
     attribs->minor = minor;
 
     value = udev_device_get_property_value(udev_device, "ID_PATH");
-    if (value && (str = strrstr(value, "pci-"))) {
+    if (value && (str = strstr(value, "pci-"))) {
         attribs->busid = XNFstrdup(str);
         attribs->busid[3] = ':';
     }