target/linux/generic/backport-6.6/763-v6.10-net-dsa-introduce-dsa_phylink_to_port.patch

   1 From f13b2b33c7674fa0988dfaa9adb95d7d912b489f Mon Sep 17 00:00:00 2001
   2 From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
   3 Date: Wed, 10 Apr 2024 20:42:38 +0100
   4 Subject: [PATCH 1/2] net: dsa: introduce dsa_phylink_to_port()
   5
   6 We convert from a phylink_config struct to a dsa_port struct in many
   7 places, let's provide a helper for this.
   8
   9 Reviewed-by: Andrew Lunn <andrew@lunn.ch>
  10 Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
  11 Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
  12 Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
  13 Link: https://lore.kernel.org/r/E1rudqA-006K9B-85@rmk-PC.armlinux.org.uk
  14 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
  15 ---
  16  include/net/dsa.h |  6 ++++++
  17  net/dsa/port.c    | 12 ++++++------
  18  2 files changed, 12 insertions(+), 6 deletions(-)
  19
  20 --- a/include/net/dsa.h
  21 +++ b/include/net/dsa.h
  22 @@ -327,6 +327,12 @@ struct dsa_port {
  23         };
  24  };
  25
  26 +static inline struct dsa_port *
  27 +dsa_phylink_to_port(struct phylink_config *config)
  28 +{
  29 +       return container_of(config, struct dsa_port, pl_config);
  30 +}
  31 +
  32  /* TODO: ideally DSA ports would have a single dp->link_dp member,
  33   * and no dst->rtable nor this struct dsa_link would be needed,
  34   * but this would require some more complex tree walking,
  35 --- a/net/dsa/port.c
  36 +++ b/net/dsa/port.c
  37 @@ -1572,7 +1572,7 @@ static struct phylink_pcs *
  38  dsa_port_phylink_mac_select_pcs(struct phylink_config *config,
  39                                 phy_interface_t interface)
  40  {
  41 -       struct dsa_port *dp = container_of(config, struct dsa_port, pl_config);
  42 +       struct dsa_port *dp = dsa_phylink_to_port(config);
  43         struct phylink_pcs *pcs = ERR_PTR(-EOPNOTSUPP);
  44         struct dsa_switch *ds = dp->ds;
  45
  46 @@ -1586,7 +1586,7 @@ static int dsa_port_phylink_mac_prepare(
  47                                         unsigned int mode,
  48                                         phy_interface_t interface)
  49  {
  50 -       struct dsa_port *dp = container_of(config, struct dsa_port, pl_config);
  51 +       struct dsa_port *dp = dsa_phylink_to_port(config);
  52         struct dsa_switch *ds = dp->ds;
  53         int err = 0;
  54
  55 @@ -1601,7 +1601,7 @@ static void dsa_port_phylink_mac_config(
  56                                         unsigned int mode,
  57                                         const struct phylink_link_state *state)
  58  {
  59 -       struct dsa_port *dp = container_of(config, struct dsa_port, pl_config);
  60 +       struct dsa_port *dp = dsa_phylink_to_port(config);
  61         struct dsa_switch *ds = dp->ds;
  62
  63         if (!ds->ops->phylink_mac_config)
  64 @@ -1614,7 +1614,7 @@ static int dsa_port_phylink_mac_finish(s
  65                                        unsigned int mode,
  66                                        phy_interface_t interface)
  67  {
  68 -       struct dsa_port *dp = container_of(config, struct dsa_port, pl_config);
  69 +       struct dsa_port *dp = dsa_phylink_to_port(config);
  70         struct dsa_switch *ds = dp->ds;
  71         int err = 0;
  72
  73 @@ -1629,7 +1629,7 @@ static void dsa_port_phylink_mac_link_do
  74                                            unsigned int mode,
  75                                            phy_interface_t interface)
  76  {
  77 -       struct dsa_port *dp = container_of(config, struct dsa_port, pl_config);
  78 +       struct dsa_port *dp = dsa_phylink_to_port(config);
  79         struct phy_device *phydev = NULL;
  80         struct dsa_switch *ds = dp->ds;
  81
  82 @@ -1652,7 +1652,7 @@ static void dsa_port_phylink_mac_link_up
  83                                          int speed, int duplex,
  84                                          bool tx_pause, bool rx_pause)
  85  {
  86 -       struct dsa_port *dp = container_of(config, struct dsa_port, pl_config);
  87 +       struct dsa_port *dp = dsa_phylink_to_port(config);
  88         struct dsa_switch *ds = dp->ds;
  89
  90         if (!ds->ops->phylink_mac_link_up) {