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net: dsa: b53: allow lower MTUs on BCM5325/5365

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[ Upstream commit e4b294f88a32438baf31762441f3dd1c996778be ]

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: 6ae5834b98 ("net: dsa: b53: add MTU configuration support")
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jonas Gorski 2024-10-04 10:47:20 +02:00 committed by Greg Kroah-Hartman
parent 9f3407aa6c
commit a7c9402bbc
1 changed files with 1 additions and 1 deletions
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2
drivers/net/dsa/b53/b53_common.c
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@ -2182,7 +2182,7 @@ 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;