generic: 6.6: sync mt7530 DSA driver with upstream
[openwrt/staging/stintel.git] / target / linux / generic / backport-6.6 / 790-18-v6.9-net-dsa-mt7530-do-not-clear-config-supported_interfa.patch
1 From 4d7b17712513710778c0f2f83ea5d9b55ed58c36 Mon Sep 17 00:00:00 2001
2 From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
3 Date: Tue, 6 Feb 2024 01:08:08 +0300
4 Subject: [PATCH 18/30] net: dsa: mt7530: do not clear
5 config->supported_interfaces
6 MIME-Version: 1.0
7 Content-Type: text/plain; charset=UTF-8
8 Content-Transfer-Encoding: 8bit
9
10 There's no need to clear the config->supported_interfaces bitmap before
11 reporting the supported interfaces as all bits in the bitmap will already
12 be initialized to zero when the phylink_config structure is allocated. The
13 "config" pointer points to &dp->phylink_config, and "dp" is allocated by
14 dsa_port_touch() with kzalloc(), so all its fields are filled with zeroes.
15
16 There's no code that would change the bitmap beforehand. Remove it.
17
18 Acked-by: Daniel Golle <daniel@makrotopia.org>
19 Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
20 Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
21 Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
22 Link: https://lore.kernel.org/r/20240206-for-netnext-mt7530-improvements-2-v5-7-d7d92a185cb1@arinc9.com
23 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
24 ---
25 drivers/net/dsa/mt7530.c | 2 --
26 1 file changed, 2 deletions(-)
27
28 --- a/drivers/net/dsa/mt7530.c
29 +++ b/drivers/net/dsa/mt7530.c
30 @@ -2609,8 +2609,6 @@ static void mt7531_mac_port_get_caps(str
31 static void mt7988_mac_port_get_caps(struct dsa_switch *ds, int port,
32 struct phylink_config *config)
33 {
34 - phy_interface_zero(config->supported_interfaces);
35 -
36 switch (port) {
37 /* Ports which are connected to switch PHYs. There is no MII pinout. */
38 case 0 ... 3: