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net: ethernet: mtk_ppe: add RCU lock around dev_fill_forward_path

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[ Upstream commit 62c30c544359aa18b8fb2734166467a07d435c2d ]

Ensure ndo_fill_forward_path() is called with RCU lock held.

Fixes: 2830e31477 ("net: ethernet: mtk-ppe: fix traffic offload with bridged wlan")
Signed-off-by: Qingfang Deng <dqfext@gmail.com>
Link: https://patch.msgid.link/20250814012559.3705-1-dqfext@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Qingfang Deng
2025-08-14 09:25:57 +08:00
committed by Greg Kroah-Hartman
parent 87f78799e3
commit 06a7acd45a
1 changed files with 2 additions and 0 deletions
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2
drivers/net/ethernet/mediatek/mtk_ppe_offload.c
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@@ -101,7 +101,9 @@ mtk_flow_get_wdma_info(struct net_device *dev, const u8 *addr, struct mtk_wdma_i
if (!IS_ENABLED(CONFIG_NET_MEDIATEK_SOC_WED))
return -1;
rcu_read_lock();
err = dev_fill_forward_path(dev, addr, &stack);
rcu_read_unlock();
if (err)
return err;