[openwrt/openwrt] generic: 6.6: net: ethernet: mediatek: Allow gaps in MAC allocation

[LEDE Commits]

dangole pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/8ef4d785829241e3a6f95c896de210fd5d3f073b

commit 8ef4d785829241e3a6f95c896de210fd5d3f073b
Author: Daniel Golle <daniel at makrotopia.org>
AuthorDate: Mon Jul 1 20:37:58 2024 +0100

    generic: 6.6: net: ethernet: mediatek: Allow gaps in MAC allocation
    
    Some devices with MediaTek SoCs don't use the first but only the second
    MAC in the chip. Especially with MT7981 which got a built-in 1GE PHY
    connected to the second MAC this is quite common.
    Make sure to reset and enable PSE also in those cases by skipping gaps
    using 'continue' instead of aborting the loop using 'break'.
    
    Fixes: 75081235b8 ("generic: 6.6: (re-)add support multiple PPE to mtk_eth_soc")
    Reported-by: Daniel Suchy <danny at danysek.cz>
    Signed-off-by: Daniel Golle <daniel at makrotopia.org>
---
 ...net-mediatek-Allow-gaps-in-MAC-allocation.patch | 33 ++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/target/linux/generic/pending-6.6/734-net-ethernet-mediatek-Allow-gaps-in-MAC-allocation.patch b/target/linux/generic/pending-6.6/734-net-ethernet-mediatek-Allow-gaps-in-MAC-allocation.patch
new file mode 100644
index 0000000000..8e1ad54a53
--- /dev/null
+++ b/target/linux/generic/pending-6.6/734-net-ethernet-mediatek-Allow-gaps-in-MAC-allocation.patch
@@ -0,0 +1,33 @@
+From 379ae584cea112db60f4ada79c7e5ba4f3364a64 Mon Sep 17 00:00:00 2001
+X-Patchwork-Submitter: Daniel Golle <daniel at makrotopia.org>
+X-Patchwork-Id: 13718593
+X-Patchwork-Delegate: kuba at kernel.org
+List-Id: <netdev.vger.kernel.org>
+From: Daniel Golle <daniel at makrotopia.org>
+Date: Mon, 1 Jul 2024 19:26:28 +0100
+Subject: [PATCH] net: ethernet: mediatek: Allow gaps in MAC allocation
+
+Some devices with MediaTek SoCs don't use the first but only the second
+MAC in the chip. Especially with MT7981 which got a built-in 1GE PHY
+connected to the second MAC this is quite common.
+Make sure to reset and enable PSE also in those cases by skipping gaps
+using 'continue' instead of aborting the loop using 'break'.
+
+Fixes: dee4dd10c79a ("net: ethernet: mtk_eth_soc: ppe: add support for multiple PPEs")
+Suggested-by: Elad Yifee <eladwf at gmail.com>
+Signed-off-by: Daniel Golle <daniel at makrotopia.org>
+---
+ drivers/net/ethernet/mediatek/mtk_eth_soc.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+@@ -3431,7 +3431,7 @@ static int mtk_open(struct net_device *d
+ 
+ 		for (i = 0; i < MTK_MAX_DEVS; i++) {
+ 			if (!eth->netdev[i])
+-				break;
++				continue;
+ 
+ 			target_mac = netdev_priv(eth->netdev[i]);
+ 			if (!soc->offload_version) {