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Commit c9589e18 authored by Rafał Miłecki's avatar Rafał Miłecki Committed by Greg Kroah-Hartman
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net: broadcom: bcm4908_enet: update TX stats after actual transmission



[ Upstream commit ef3556ee ]

Queueing packets doesn't guarantee their transmission. Update TX stats
after hardware confirms consuming submitted data.

This also fixes a possible race and NULL dereference.
bcm4908_enet_start_xmit() could try to access skb after freeing it in
the bcm4908_enet_poll_tx().

Reported-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Fixes: 4feffead ("net: broadcom: bcm4908enet: add BCM4908 controller driver")
Signed-off-by: default avatarRafał Miłecki <rafal@milecki.pl>
Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20221027112430.8696-1-zajec5@gmail.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 9711616a
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