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SubjectRe: [PATCH net 1/1] net: stmmac: set TxQ mode back to DCB after disabling CBS
Song Yoong Siang wrote:

> From: Mohammad Athari Bin Ismail <>
> When disable CBS, mode_to_use parameter is not updated even the operation
> mode of Tx Queue is changed to Data Centre Bridging (DCB). Therefore,
> when tc_setup_cbs() function is called to re-enable CBS, the operation
> mode of Tx Queue remains at DCB, which causing CBS fails to work.
> This patch updates the value of mode_to_use parameter to MTL_QUEUE_DCB
> after operation mode of Tx Queue is changed to DCB in stmmac_dma_qmode()
> callback function.
> Fixes: 1f705bc61aee ("net: stmmac: Add support for CBS QDISC")
> Suggested-by: Gomes, Vinicius <>
> Signed-off-by: Mohammad Athari Bin Ismail <>
> Signed-off-by: Song, Yoong Siang <>

Reviewed-by: Jesse Brandeburg <>

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