ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/target/linux/generic/pending-5.4/758-net-sfp-error-handling-for-phy-probe.patch b/target/linux/generic/pending-5.4/758-net-sfp-error-handling-for-phy-probe.patch
new file mode 100644
index 0000000..5964ed5
--- /dev/null
+++ b/target/linux/generic/pending-5.4/758-net-sfp-error-handling-for-phy-probe.patch
@@ -0,0 +1,97 @@
+From 1fba543dc8edf4a43bff3276306648bb27c1e207 Mon Sep 17 00:00:00 2001
+From: Russell King <rmk+kernel@armlinux.org.uk>
+Date: Fri, 29 Nov 2019 00:30:08 +0000
+Subject: [PATCH 3/4] net: sfp: error handling for phy probe
+
+Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
+---
+ drivers/net/phy/sfp.c | 26 +++++++++++++++++---------
+ 1 file changed, 17 insertions(+), 9 deletions(-)
+
+--- a/drivers/net/phy/sfp.c
++++ b/drivers/net/phy/sfp.c
+@@ -1426,7 +1426,7 @@ static void sfp_sm_phy_detach(struct sfp
+ sfp->mod_phy = NULL;
+ }
+
+-static void sfp_sm_probe_phy(struct sfp *sfp, bool is_c45)
++static int sfp_sm_probe_phy(struct sfp *sfp, bool is_c45)
+ {
+ struct phy_device *phy;
+ int err;
+@@ -1434,18 +1434,18 @@ static void sfp_sm_probe_phy(struct sfp
+ phy = get_phy_device(sfp->i2c_mii, SFP_PHY_ADDR, is_c45);
+ if (phy == ERR_PTR(-ENODEV)) {
+ dev_info(sfp->dev, "no PHY detected\n");
+- return;
++ return 0;
+ }
+ if (IS_ERR(phy)) {
+ dev_err(sfp->dev, "mdiobus scan returned %ld\n", PTR_ERR(phy));
+- return;
++ return PTR_ERR(phy);
+ }
+
+ err = phy_device_register(phy);
+ if (err) {
+ phy_device_free(phy);
+ dev_err(sfp->dev, "phy_device_register failed: %d\n", err);
+- return;
++ return err;
+ }
+
+ err = sfp_add_phy(sfp->sfp_bus, phy);
+@@ -1453,10 +1453,12 @@ static void sfp_sm_probe_phy(struct sfp
+ phy_device_remove(phy);
+ phy_device_free(phy);
+ dev_err(sfp->dev, "sfp_add_phy failed: %d\n", err);
+- return;
++ return err;
+ }
+
+ sfp->mod_phy = phy;
++
++ return 0;
+ }
+
+ static void sfp_sm_link_up(struct sfp *sfp)
+@@ -1537,21 +1539,24 @@ static void sfp_sm_fault(struct sfp *sfp
+ * Clause 45 copper SFP+ modules (10G) appear to switch their interface
+ * mode according to the negotiated line speed.
+ */
+-static void sfp_sm_probe_for_phy(struct sfp *sfp)
++static int sfp_sm_probe_for_phy(struct sfp *sfp)
+ {
++ int err = 0;
++
+ switch (sfp->id.base.extended_cc) {
+ case SFF8024_ECC_10GBASE_T_SFI:
+ case SFF8024_ECC_10GBASE_T_SR:
+ case SFF8024_ECC_5GBASE_T:
+ case SFF8024_ECC_2_5GBASE_T:
+- sfp_sm_probe_phy(sfp, true);
++ err = sfp_sm_probe_phy(sfp, true);
+ break;
+
+ default:
+ if (sfp->id.base.e1000_base_t)
+- sfp_sm_probe_phy(sfp, false);
++ err = sfp_sm_probe_phy(sfp, false);
+ break;
+ }
++ return err;
+ }
+
+ static int sfp_module_parse_power(struct sfp *sfp)
+@@ -2033,7 +2038,10 @@ static void sfp_sm_main(struct sfp *sfp,
+ init_done: /* TX_FAULT deasserted or we timed out with TX_FAULT
+ * clear. Probe for the PHY and check the LOS state.
+ */
+- sfp_sm_probe_for_phy(sfp);
++ if (sfp_sm_probe_for_phy(sfp)) {
++ sfp_sm_next(sfp, SFP_S_FAIL, 0);
++ break;
++ }
+ if (sfp_module_start(sfp->sfp_bus)) {
+ sfp_sm_next(sfp, SFP_S_FAIL, 0);
+ break;