[PATCH 4/5] net: dsa: b53: allow lower MTUs on BCM5325/5365

From: Jonas Gorski
Date: Fri Oct 04 2024 - 04:48:36 EST


While BCM5325/5365 do not support jumbo frames, they do support slightly
oversized frames, so do not error out if requesting a supported MTU for
them.

Fixes: 6ae5834b983a ("net: dsa: b53: add MTU configuration support")
Signed-off-by: Jonas Gorski <jonas.gorski@xxxxxxxxx>
---
drivers/net/dsa/b53/b53_common.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c
index e8b20bfa8b83ea7ac643bd5d005e2983747bd478..5b83f9b6cdac3de6c5e6e2164c78146d694674cd 100644
--- a/drivers/net/dsa/b53/b53_common.c
+++ b/drivers/net/dsa/b53/b53_common.c
@@ -2258,7 +2258,7 @@ static int b53_change_mtu(struct dsa_switch *ds, int port, int mtu)
bool allow_10_100;

if (is5325(dev) || is5365(dev))
- return -EOPNOTSUPP;
+ return 0;

if (!dsa_is_cpu_port(ds, port))
return 0;

--
2.43.0