openwrt/target/linux/generic/backport-6.1/790-36-v6.9-net-dsa-mt7530-do-not-clear-config-supported_interfa.patch

From 4440ce33074be6bd55d1a0c8b5f4b6d433ae2c74 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Tue, 6 Feb 2024 01:08:08 +0300
Subject: [PATCH 36/48] net: dsa: mt7530: do not clear
 config->supported_interfaces
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

There's no need to clear the config->supported_interfaces bitmap before
reporting the supported interfaces as all bits in the bitmap will already
be initialized to zero when the phylink_config structure is allocated. The
"config" pointer points to &dp->phylink_config, and "dp" is allocated by
dsa_port_touch() with kzalloc(), so all its fields are filled with zeroes.

There's no code that would change the bitmap beforehand. Remove it.

Acked-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Link: https://lore.kernel.org/r/20240206-for-netnext-mt7530-improvements-2-v5-7-d7d92a185cb1@arinc9.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
 drivers/net/dsa/mt7530.c | 2 --
 1 file changed, 2 deletions(-)

--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2789,8 +2789,6 @@ static void mt7531_mac_port_get_caps(str
 static void mt7988_mac_port_get_caps(struct dsa_switch *ds, int port,
 				     struct phylink_config *config)
 {
-	phy_interface_zero(config->supported_interfaces);
-
 	switch (port) {
 	/* Ports which are connected to switch PHYs. There is no MII pinout. */
 	case 0 ... 3: