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401a6ccfaf
Backport lots upstream changes, many of them fixes, for the mt7530 DSA driver. Some of them may or may not find they way into Linux 6.1 stable, some certainly won't because they are fixes for backported commits which aren't even present in Linux 6.1 upstream. Apart from adding new patches, also remove mutated patch 723-net-mt7531-ensure-all-MACs-are-powered-down-before-r.patch which should never have been added for Linux 6.1 -- it was applied already upstream but coincidentally would fuzzy-apply in the wrong place as well (for MT7530 instead of MT7531). While that didn't really hurt anyone it is just unneeded. The other deleted patch 795-mt7530-register-OF-node-for-internal-MDIO-bus.patch has been replaced by an equivalent commit with a more complete patch description by upstream maintainer Arınç Ünal. The remaining differences compared to the upstream driver are: * C22/C45 MDIO ops aren't split Upstream did that, backporting it would require making changes to *all* DSA drivers * 'slave' -> 'user', 'master' -> 'conduit' language change in DSA * support for selecting preferred CPU port on MT7531 Also this would require too many DSA framework changes potentially affecting other devices. If we ever really use Linux 6.1 in a release (I hope not) we can still reconsider to make the effort to backport that. In addition to some minor bug fixes and style improvements the switch should now behave more conformant when it comes to link-local frames, and we will again be able to cleanly pick patches from upstream. MAINTAIERS NOTE: Three patches are already part of Linux stable and should be removed with the next minor kernel version bump: 789-STABLE-01-net-dsa-mt7530-prevent-possible-incorrect-XTAL-frequ.patch 789-STABLE-02-net-dsa-mt7530-fix-link-local-frames-that-ingress-vl.patch 789-STABLE-03-net-dsa-mt7530-fix-handling-of-all-link-local-frames.patch Signed-off-by: Daniel Golle <daniel@makrotopia.org>
59 lines
1.8 KiB
Diff
59 lines
1.8 KiB
Diff
From 959f4ac4940bebb84bdd25ac61470b3965e1e475 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
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Date: Tue, 6 Feb 2024 01:08:02 +0300
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Subject: [PATCH 30/48] net: dsa: mt7530: empty default case on
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mt7530_setup_port5()
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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There're two code paths for setting up port 5:
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mt7530_setup()
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-> mt7530_setup_port5()
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mt753x_phylink_mac_config()
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-> mt753x_mac_config()
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-> mt7530_mac_config()
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-> mt7530_setup_port5()
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On the first code path, priv->p5_intf_sel is either set to
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P5_INTF_SEL_PHY_P0 or P5_INTF_SEL_PHY_P4 when mt7530_setup_port5() is run.
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On the second code path, priv->p5_intf_sel is set to P5_INTF_SEL_GMAC5 when
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mt7530_setup_port5() is run.
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Empty the default case which will never run but is needed nonetheless to
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handle all the remaining enumeration values.
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Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
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Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
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Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
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Link: https://lore.kernel.org/r/20240206-for-netnext-mt7530-improvements-2-v5-1-d7d92a185cb1@arinc9.com
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Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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---
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drivers/net/dsa/mt7530.c | 5 +----
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1 file changed, 1 insertion(+), 4 deletions(-)
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--- a/drivers/net/dsa/mt7530.c
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+++ b/drivers/net/dsa/mt7530.c
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@@ -936,9 +936,7 @@ static void mt7530_setup_port5(struct ds
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val &= ~MHWTRAP_P5_DIS;
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break;
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default:
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- dev_err(ds->dev, "Unsupported p5_intf_sel %d\n",
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- priv->p5_intf_sel);
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- goto unlock_exit;
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+ break;
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}
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/* Setup RGMII settings */
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@@ -968,7 +966,6 @@ static void mt7530_setup_port5(struct ds
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dev_dbg(ds->dev, "Setup P5, HWTRAP=0x%x, intf_sel=%s, phy-mode=%s\n",
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val, p5_intf_modes(priv->p5_intf_sel), phy_modes(interface));
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-unlock_exit:
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mutex_unlock(&priv->reg_mutex);
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}
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