Commit d28e8924 authored by Russell King (Oracle)'s avatar Russell King (Oracle) Committed by Jakub Kicinski
Browse files

net: stmmac: restart LPI timer after cleaning transmit descriptors 



Fix a bug in the LPI handling, where it is possible to immediately
enter LPI mode after cleaning the transmit descriptors when all queues
are empty rather than waiting for the LPI timeout to expire.

Signed-off-by: default avatarRussell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tXItg-000MBg-TW@rmk-PC.armlinux.org.uk


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent ec855367

drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

+1 −1
Original line number Diff line number Diff line
@@ -2795,7 +2795,7 @@ static int stmmac_tx_clean(struct stmmac_priv *priv, int budget, u32 queue, 
	}



	if (priv->eee_sw_timer_en && !priv->tx_path_in_lpi_mode)

		stmmac_try_to_start_sw_lpi(priv);

		stmmac_restart_sw_lpi_timer(priv);



	/* We still have pending packets, let's call for a new scheduling */

	if (tx_q->dirty_tx != tx_q->cur_tx)