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net: ethernet: mtk_wed: fix reset condition for rx wdma

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In mtk_wdma_rx_reset, currently only resets the CPU index of the rings
that doesn't have a descriptor. This is wrong because no descriptor
means the ring is not configured.

Also mtk_wed_start makes sure that all rx_wdma rings are set up this
would lead to no ring getting their CPU index reset.

Fix this by inverting the reset condition so allocated rings will be
reset.

Fixes: 4c5de09eb0 ("net: ethernet: mtk_wed: add configure wed wo support")
Reported-by: Sashiko <sashiko-bot@kernel.org>
Link: https://sashiko.dev/#/patchset/20260724172040.1653-1-hujy652%40gmail.com
Signed-off-by: Zhi-Jun You <hujy652@gmail.com>
Link: https://patch.msgid.link/20261026-wedfix-v6-2-a52f6b15d2fc@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Zhi-Jun You 2026-10-26 17:57:29 +08:00 committed by Jakub Kicinski
parent cb50f16f37
commit 7180a42d8e
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/mediatek/mtk_wed.c
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@ -257,7 +257,7 @@ mtk_wdma_rx_reset(struct mtk_wed_device *dev)
wdma_w32(dev, MTK_WDMA_RESET_IDX, 0);
for (i = 0; i < ARRAY_SIZE(dev->rx_wdma); i++) {
if (dev->rx_wdma[i].desc)
if (!dev->rx_wdma[i].desc)
continue;
wdma_w32(dev,