forked from Openwrt-EcoNet/openwrt
456b7a5d48
This is an automatically generated commit which aids following Kernel patch history, as git will see the move and copy as a rename thus defeating the purpose. For the original discussion see: https://lists.openwrt.org/pipermail/openwrt-devel/2023-October/041673.html Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com> Link: https://github.com/openwrt/openwrt/pull/16547 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
59 lines
2.2 KiB
Diff
59 lines
2.2 KiB
Diff
From e85d3e6fea05c8ae21a40809a3c6b7adc97411c7 Mon Sep 17 00:00:00 2001
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Message-ID: <e85d3e6fea05c8ae21a40809a3c6b7adc97411c7.1728674648.git.mschiffer@universe-factory.net>
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From: Matthias Schiffer <mschiffer@universe-factory.net>
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Date: Thu, 20 Jun 2024 19:25:48 +0200
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Subject: [PATCH] net: dsa: qca8k: do not write port mask twice in bridge
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join/leave
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qca8k_port_bridge_join() set QCA8K_PORT_LOOKUP_CTRL() for i == port twice,
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once in the loop handling all other port's masks, and finally at the end
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with the accumulated port_mask.
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The first time it would incorrectly set the port's own bit in the mask,
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only to correct the mistake a moment later. qca8k_port_bridge_leave() had
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the same issue, but here the regmap_clear_bits() was a no-op rather than
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setting an unintended value.
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Remove the duplicate assignment by skipping the whole loop iteration for
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i == port. The unintended bit setting doesn't seem to have any negative
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effects (even when not reverted right away), so the change is submitted
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as a simple cleanup rather than a fix.
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Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
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Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/dsa/qca/qca8k-common.c | 7 +++++--
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1 file changed, 5 insertions(+), 2 deletions(-)
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--- a/drivers/net/dsa/qca/qca8k-common.c
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+++ b/drivers/net/dsa/qca/qca8k-common.c
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@@ -654,6 +654,8 @@ int qca8k_port_bridge_join(struct dsa_sw
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port_mask = BIT(cpu_port);
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for (i = 0; i < QCA8K_NUM_PORTS; i++) {
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+ if (i == port)
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+ continue;
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if (dsa_is_cpu_port(ds, i))
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continue;
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if (!dsa_port_offloads_bridge(dsa_to_port(ds, i), &bridge))
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@@ -666,8 +668,7 @@ int qca8k_port_bridge_join(struct dsa_sw
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BIT(port));
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if (ret)
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return ret;
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- if (i != port)
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- port_mask |= BIT(i);
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+ port_mask |= BIT(i);
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}
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/* Add all other ports to this ports portvlan mask */
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@@ -686,6 +687,8 @@ void qca8k_port_bridge_leave(struct dsa_
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cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
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for (i = 0; i < QCA8K_NUM_PORTS; i++) {
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+ if (i == port)
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+ continue;
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if (dsa_is_cpu_port(ds, i))
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continue;
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if (!dsa_port_offloads_bridge(dsa_to_port(ds, i), &bridge))
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