From: Ivan Khoronzhuk ivan.khoronzhuk@linaro.org
[ Upstream commit 09faf5a7d7c0bcb07faba072f611937af9dd5788 ]
Fix ability to set RX descriptor number, the reason - initially "tx_max_pending" was set incorrectly, but the issue appears after adding sanity check, so fix is for "sanity" patch.
Fixes: 37e2d99b59c476 ("ethtool: Ensure new ring parameters are within bounds during SRINGPARAM") Signed-off-by: Ivan Khoronzhuk ivan.khoronzhuk@linaro.org Reviewed-by: Grygorii Strashko grygorii.strashko@ti.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/ti/cpsw.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -3130,6 +3130,7 @@ static void cpsw_get_ringparam(struct ne struct cpsw_common *cpsw = priv->cpsw;
/* not supported */ + ering->tx_max_pending = descs_pool_size - CPSW_MAX_QUEUES; ering->tx_max_pending = 0; ering->tx_pending = cpdma_get_num_tx_descs(cpsw->dma); ering->rx_max_pending = descs_pool_size - CPSW_MAX_QUEUES;