[PATCH net v6 2/4] net: ethernet: mtk_wed: fix reset condition for rx wdma

[Zhi-Jun You]

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: 4c5de09eb0d0 ("net: ethernet: mtk_wed: add configure wed wo support")
Reported-by: Sashiko <sashiko-bot at kernel.org>
Link: https://sashiko.dev/#/patchset/20260724172040.1653-1-hujy652%40gmail.com
Signed-off-by: Zhi-Jun You <hujy652 at gmail.com>
---
 drivers/net/ethernet/mediatek/mtk_wed.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mediatek/mtk_wed.c b/drivers/net/ethernet/mediatek/mtk_wed.c
index d55042ccaff1..3f0be70c3f14 100644
--- a/drivers/net/ethernet/mediatek/mtk_wed.c
+++ b/drivers/net/ethernet/mediatek/mtk_wed.c
@@ -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,

-- 
2.55.0