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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 The other deleted patch 795-mt7530-register-OF-node-for-internal-MDIO-bus.patch has been replaced by an equivalent commit with a more complete patch description by upstream maintainer Arınç Ünal.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
2.1 KiB
Diff
59 lines
2.1 KiB
Diff
From 03ede98ecc29b59fb364f735d6de0e6a4c1735fc Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de>
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Date: Mon, 18 Sep 2023 21:19:12 +0200
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Subject: [PATCH 18/48] net: dsa: mt7530: Convert to platform remove callback
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returning void
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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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The .remove() callback for a platform driver returns an int which makes
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many driver authors wrongly assume it's possible to do error handling by
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returning an error code. However the value returned is ignored (apart
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from emitting a warning) and this typically results in resource leaks.
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To improve here there is a quest to make the remove callback return
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void. In the first step of this quest all drivers are converted to
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.remove_new() which already returns void. Eventually after all drivers
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are converted, .remove_new() is renamed to .remove().
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Trivially convert this driver from always returning zero in the remove
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callback to the void returning variant.
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Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
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Reviewed-by: Andrew Lunn <andrew@lunn.ch>
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Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
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Acked-by: Daniel Golle <daniel@makrotopia.org>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/dsa/mt7530-mmio.c | 7 ++-----
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1 file changed, 2 insertions(+), 5 deletions(-)
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--- a/drivers/net/dsa/mt7530-mmio.c
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+++ b/drivers/net/dsa/mt7530-mmio.c
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@@ -62,15 +62,12 @@ mt7988_probe(struct platform_device *pde
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return dsa_register_switch(priv->ds);
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}
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-static int
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-mt7988_remove(struct platform_device *pdev)
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+static void mt7988_remove(struct platform_device *pdev)
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{
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struct mt7530_priv *priv = platform_get_drvdata(pdev);
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if (priv)
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mt7530_remove_common(priv);
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-
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- return 0;
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}
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static void mt7988_shutdown(struct platform_device *pdev)
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@@ -87,7 +84,7 @@ static void mt7988_shutdown(struct platf
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static struct platform_driver mt7988_platform_driver = {
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.probe = mt7988_probe,
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- .remove = mt7988_remove,
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+ .remove_new = mt7988_remove,
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.shutdown = mt7988_shutdown,
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.driver = {
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.name = "mt7530-mmio",
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