]> git.ipfire.org Git - thirdparty/linux.git/commit
net: ethernet: mtk_eth_soc: fix SER panic with 4GB+ RAM
authorChad Monroe <chad@monroe.io>
Sun, 27 Apr 2025 01:05:44 +0000 (02:05 +0100)
committerJakub Kicinski <kuba@kernel.org>
Tue, 29 Apr 2025 21:36:42 +0000 (14:36 -0700)
commit6e0490fc36cdac696f96e57b61d93b9ae32e0f4c
treea5c328fa39b2f1f307ac598458b6259026231828
parentb23285e93bef729e67519a5209d5b7fde3b4af50
net: ethernet: mtk_eth_soc: fix SER panic with 4GB+ RAM

If the mtk_poll_rx() function detects the MTK_RESETTING flag, it will
jump to release_desc and refill the high word of the SDP on the 4GB RFB.
Subsequently, mtk_rx_clean will process an incorrect SDP, leading to a
panic.

Add patch from MediaTek's SDK to resolve this.

Fixes: 2d75891ebc09 ("net: ethernet: mtk_eth_soc: support 36-bit DMA addressing on MT7988")
Link: https://git01.mediatek.com/plugins/gitiles/openwrt/feeds/mtk-openwrt-feeds/+/71f47ea785699c6aa3b922d66c2bdc1a43da25b1
Signed-off-by: Chad Monroe <chad@monroe.io>
Link: https://patch.msgid.link/4adc2aaeb0fb1b9cdc56bf21cf8e7fa328daa345.1745715843.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
drivers/net/ethernet/mediatek/mtk_eth_soc.c