diff options
Diffstat (limited to 'target/linux/generic/backport-5.15/703-13-v5.17-net-dsa-mark-DSA-phylink-as-legacy_pre_march2020.patch')
| -rw-r--r-- | target/linux/generic/backport-5.15/703-13-v5.17-net-dsa-mark-DSA-phylink-as-legacy_pre_march2020.patch | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.15/703-13-v5.17-net-dsa-mark-DSA-phylink-as-legacy_pre_march2020.patch b/target/linux/generic/backport-5.15/703-13-v5.17-net-dsa-mark-DSA-phylink-as-legacy_pre_march2020.patch new file mode 100644 index 0000000000..dff0db5db6 --- /dev/null +++ b/target/linux/generic/backport-5.15/703-13-v5.17-net-dsa-mark-DSA-phylink-as-legacy_pre_march2020.patch @@ -0,0 +1,36 @@ +From 0a9f0794d9bd67e590a9488afe87fbb0419d9539 Mon Sep 17 00:00:00 2001 +From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk> +Date: Thu, 9 Dec 2021 13:11:38 +0000 +Subject: [PATCH] net: dsa: mark DSA phylink as legacy_pre_march2020 + +The majority of DSA drivers do not make use of the PCS support, and +thus operate in legacy mode. In order to preserve this behaviour in +future, we need to set the legacy_pre_march2020 flag so phylink knows +this may require the legacy calls. + +There are some DSA drivers that do make use of PCS support, and these +will continue operating as before - legacy_pre_march2020 will not +prevent split-PCS support enabling the newer phylink behaviour. + +Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> +Signed-off-by: Jakub Kicinski <kuba@kernel.org> +--- + net/dsa/port.c | 7 +++++++ + 1 file changed, 7 insertions(+) + +--- a/net/dsa/port.c ++++ b/net/dsa/port.c +@@ -1110,6 +1110,13 @@ int dsa_port_phylink_create(struct dsa_p + if (err) + mode = PHY_INTERFACE_MODE_NA; + ++ /* Presence of phylink_mac_link_state or phylink_mac_an_restart is ++ * an indicator of a legacy phylink driver. ++ */ ++ if (ds->ops->phylink_mac_link_state || ++ ds->ops->phylink_mac_an_restart) ++ dp->pl_config.legacy_pre_march2020 = true; ++ + if (ds->ops->phylink_get_caps) + ds->ops->phylink_get_caps(ds, dp->index, &dp->pl_config); + |