git.openwrt.org Git - openwrt/staging/xback.git/blob

   1 From 2bed2d0932c37d6cae9a745613c2e8f83649ed39 Mon Sep 17 00:00:00 2001
   2 From: Jonas Gorski <jonas.gorski@gmail.com>
   3 Date: Tue, 25 Nov 2025 08:51:45 +0100
   4 Subject: [PATCH] net: dsa: b53: fix extracting VID from entry for BCM5325/65
   5
   6 BCM5325/65's Entry register uses the highest three bits for
   7 VALID/STATIC/AGE, so shifting by 53 only will add these to
   8 b53_arl_entry::vid.
   9
  10 So make sure to mask the vid value as well, to not get invalid VIDs.
  11
  12 Fixes: c45655386e53 ("net: dsa: b53: add support for FDB operations on 5325/5365")
  13 Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
  14 ---
  15  drivers/net/dsa/b53/b53_priv.h | 2 +-
  16  1 file changed, 1 insertion(+), 1 deletion(-)
  17
  18 --- a/drivers/net/dsa/b53/b53_priv.h
  19 +++ b/drivers/net/dsa/b53/b53_priv.h
  20 @@ -350,7 +350,7 @@ static inline void b53_arl_to_entry_25(s
  21         ent->is_age = !!(mac_vid & ARLTBL_AGE_25);
  22         ent->is_static = !!(mac_vid & ARLTBL_STATIC_25);
  23         u64_to_ether_addr(mac_vid, ent->mac);
  24 -       ent->vid = mac_vid >> ARLTBL_VID_S_65;
  25 +       ent->vid = (mac_vid >> ARLTBL_VID_S_65) & ARLTBL_VID_MASK_25;
  26  }
  27
  28  static inline void b53_arl_to_entry_89(struct b53_arl_entry *ent,