]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
net: bcmgenet: suppress warnings on failed Rx SKB allocations
authorDoug Berger <opendmb@gmail.com>
Thu, 23 Apr 2020 23:02:11 +0000 (16:02 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 10 May 2020 08:30:10 +0000 (10:30 +0200)
commitdfc37cb5e7f779cb854893ebfa75bfa1ea2a683f
tree34d37b8cc480747737aea361f29db261ff9cafbe
parent416d95e0ea9512cd6966d213a727e5b55e6401fd
net: bcmgenet: suppress warnings on failed Rx SKB allocations

[ Upstream commit ecaeceb8a8a145d93c7e136f170238229165348f ]

The driver is designed to drop Rx packets and reclaim the buffers
when an allocation fails, and the network interface needs to safely
handle this packet loss. Therefore, an allocation failure of Rx
SKBs is relatively benign.

However, the output of the warning message occurs with a high
scheduling priority that can cause excessive jitter/latency for
other high priority processing.

This commit suppresses the warning messages to prevent scheduling
problems while retaining the failure count in the statistics of
the network interface.

Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/net/ethernet/broadcom/genet/bcmgenet.c