GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-03-16 20:24:11 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

net: dsa: rtl8366rb: Fix off-by-one bug

Browse source 
[ Upstream commit 5f5f12f5d4 ]

The max VLAN number with non-4K VLAN activated is 15, and the
range is 0..15. Not 16.

The impact should be low since we by default have 4K VLAN and
thus have 4095 VLANs to play with in this switch. There will
not be a problem unless the code is rewritten to only use
16 VLANs.

Fixes: d8652956cf ("net: dsa: realtek-smi: Add Realtek SMI driver")
Cc: Mauri Sandberg <sandberg@mailfence.com>
Cc: DENG Qingfang <dqfext@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Linus Walleij 2021-09-26 00:59:27 +02:00 • committed by Justin Hammond
parent 49d924266e
commit 73a00f9f2a
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/net/dsa/rtl8366rb.c
View file

@ -1350,7 +1350,7 @@ static int rtl8366rb_set_mc_index(struct realtek_smi *smi, int port, int index)
static bool rtl8366rb_is_vlan_valid(struct realtek_smi *smi, unsigned int vlan)
{
unsigned int max = RTL8366RB_NUM_VLANS;
unsigned int max = RTL8366RB_NUM_VLANS - 1;
if (smi->vlan4k_enabled)
max = RTL8366RB_NUM_VIDS - 1;