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-rw-r--r--target/linux/generic/pending-4.19/740-net-sfp-remove-incomplete-100BASE-FX-and-100BASE-LX-.patch52
1 files changed, 52 insertions, 0 deletions
diff --git a/target/linux/generic/pending-4.19/740-net-sfp-remove-incomplete-100BASE-FX-and-100BASE-LX-.patch b/target/linux/generic/pending-4.19/740-net-sfp-remove-incomplete-100BASE-FX-and-100BASE-LX-.patch
new file mode 100644
index 0000000000..aaeb65763b
--- /dev/null
+++ b/target/linux/generic/pending-4.19/740-net-sfp-remove-incomplete-100BASE-FX-and-100BASE-LX-.patch
@@ -0,0 +1,52 @@
+From 29cd215aaf6c2050c43e4de03aee436c16f90b96 Mon Sep 17 00:00:00 2001
+From: Russell King <rmk+kernel@armlinux.org.uk>
+Date: Thu, 21 Nov 2019 17:27:14 +0000
+Subject: [PATCH 643/660] net: sfp: remove incomplete 100BASE-FX and 100BASE-LX
+ support
+
+The 100BASE-FX and 100BASE-LX support assumes a PHY is present; this
+is probably an incorrect assumption. In any case, sfp_parse_support()
+will fail such a module. Let's stop pretending we support these
+modules.
+
+Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
+---
+ drivers/net/phy/sfp-bus.c | 4 +---
+ drivers/net/phy/sfp.c | 13 +------------
+ 2 files changed, 2 insertions(+), 15 deletions(-)
+
+--- a/drivers/net/phy/sfp-bus.c
++++ b/drivers/net/phy/sfp-bus.c
+@@ -341,9 +341,7 @@ phy_interface_t sfp_select_interface(str
+ if (phylink_test(link_modes, 2500baseX_Full))
+ return PHY_INTERFACE_MODE_2500BASEX;
+
+- if (id->base.e1000_base_t ||
+- id->base.e100_base_lx ||
+- id->base.e100_base_fx)
++ if (id->base.e1000_base_t)
+ return PHY_INTERFACE_MODE_SGMII;
+
+ if (phylink_test(link_modes, 1000baseX_Full))
+--- a/drivers/net/phy/sfp.c
++++ b/drivers/net/phy/sfp.c
+@@ -1413,18 +1413,7 @@ static void sfp_sm_fault(struct sfp *sfp
+
+ static void sfp_sm_probe_for_phy(struct sfp *sfp)
+ {
+- /* Setting the serdes link mode is guesswork: there's no
+- * field in the EEPROM which indicates what mode should
+- * be used.
+- *
+- * If it's a gigabit-only fiber module, it probably does
+- * not have a PHY, so switch to 802.3z negotiation mode.
+- * Otherwise, switch to SGMII mode (which is required to
+- * support non-gigabit speeds) and probe for a PHY.
+- */
+- if (sfp->id.base.e1000_base_t ||
+- sfp->id.base.e100_base_lx ||
+- sfp->id.base.e100_base_fx)
++ if (sfp->id.base.e1000_base_t)
+ sfp_sm_probe_phy(sfp);
+ }
+