diff mbox series

[RFC,net-next,1/7] net: dsa: ksz: remove setting of tx_lpi parameters

Message ID E1tL1Bm-006cn4-Gr@rmk-PC.armlinux.org.uk (mailing list archive)
State RFC
Delegated to: Netdev Maintainers
Headers show
Series net: dsa: cleanup EEE (part 2) | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net-next
netdev/apply fail Patch does not apply to net-next-1

Commit Message

Russell King (Oracle) Dec. 10, 2024, 2:26 p.m. UTC
dsa_user_get_eee() calls the DSA switch get_mac_eee() method followed
by phylink_ethtool_get_eee(), which goes on to call
phy_ethtool_get_eee(). This overwrites all members of the passed
ethtool_keee, which means anything written by the DSA switch
get_mac_eee() method will discarded.

Remove setting any members in ksz_get_mac_eee().

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
---
 drivers/net/dsa/microchip/ksz_common.c | 8 --------
 1 file changed, 8 deletions(-)

Comments

Vladimir Oltean Dec. 12, 2024, 7:38 p.m. UTC | #1
On Tue, Dec 10, 2024 at 02:26:14PM +0000, Russell King (Oracle) wrote:
> dsa_user_get_eee() calls the DSA switch get_mac_eee() method followed
> by phylink_ethtool_get_eee(), which goes on to call
> phy_ethtool_get_eee(). This overwrites all members of the passed
> ethtool_keee, which means anything written by the DSA switch
> get_mac_eee() method will discarded.

nitpick: will _be_ discarded.
diff mbox series

Patch

diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index 94f9aa983ff6..9a48b4438a6d 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -3480,14 +3480,6 @@  static bool ksz_support_eee(struct dsa_switch *ds, int port)
 static int ksz_get_mac_eee(struct dsa_switch *ds, int port,
 			   struct ethtool_keee *e)
 {
-	/* There is no documented control of Tx LPI configuration. */
-	e->tx_lpi_enabled = true;
-
-	/* There is no documented control of Tx LPI timer. According to tests
-	 * Tx LPI timer seems to be set by default to minimal value.
-	 */
-	e->tx_lpi_timer = 0;
-
 	return 0;
 }