extras: path_id - add comment about readdir() rebase logic

diff --git a/src/udev-builtin-path_id.c b/src/udev-builtin-path_id.c
index 5de72194a2185bbbc93b85630d182994fe165c0e..a8559d2dd4118ac89feb03b7db8ef364caa73a0b 100644 (file)
--- a/src/udev-builtin-path_id.c
+++ b/src/udev-builtin-path_id.c
@@ -265,6 +265,11 @@ static struct udev_device *handle_scsi_default(struct udev_device *parent, char
                 i = strtoul(&dent->d_name[4], &rest, 10);
                 if (rest[0] != '\0')
                         continue;
+                /*
+                 * find the smallest number; the host really needs to export its
+                 * own instance number per parent device; relying on the global host
+                 * enumeration and plainly rebasing the numbers sounds unreliable
+                 */
                 if (basenum == -1 || i < basenum)
                         basenum = i;
         }