Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Cross-merge networking fixes after downstream PR.

Conflicts:

include/net/inet_sock.h
  f866fbc842de ("ipv4: fix data-races around inet->inet_id")
  c274af224269 ("inet: introduce inet->inet_flags")
https://lore.kernel.org/all/679ddff6-db6e-4ff6-b177-574e90d0103d@tessares.net/

Adjacent changes:

drivers/net/bonding/bond_alb.c
  e74216b8def3 ("bonding: fix macvlan over alb bond support")
  f11e5bd159b0 ("bonding: support balance-alb with openvswitch")

drivers/net/ethernet/broadcom/bgmac.c
  d6499f0b7c7c ("net: bgmac: Return PTR_ERR() for fixed_phy_register()")
  23a14488ea58 ("net: bgmac: Fix return value check for fixed_phy_register()")

drivers/net/ethernet/broadcom/genet/bcmmii.c
  32bbe64a1386 ("net: bcmgenet: Fix return value check for fixed_phy_register()")
  acf50d1adbf4 ("net: bcmgenet: Return PTR_ERR() for fixed_phy_register()")

net/sctp/socket.c
  f866fbc842de ("ipv4: fix data-races around inet->inet_id")
  b09bde5c3554 ("inet: move inet->mc_loop to inet->inet_frags")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

2 files changed, 17 insertions, 4 deletions

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 8aec8e83038c..df54c137c5f5 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -1218,9 +1218,11 @@ void phy_stop_machine(struct phy_device *phydev)
 
 static void phy_process_error(struct phy_device *phydev)
 {
-	mutex_lock(&phydev->lock);
+	/* phydev->lock must be held for the state change to be safe */
+	if (!mutex_is_locked(&phydev->lock))
+		phydev_err(phydev, "PHY-device data unsafe context\n");
+
 	phydev->state = PHY_ERROR;
-	mutex_unlock(&phydev->lock);
 
 	phy_trigger_machine(phydev);
 }
@@ -1229,7 +1231,9 @@ static void phy_error_precise(struct phy_device *phydev,
 			      const void *func, int err)
 {
 	WARN(1, "%pS: returned: %d\n", func, err);
+	mutex_lock(&phydev->lock);
 	phy_process_error(phydev);
+	mutex_unlock(&phydev->lock);
 }
 
 /**
@@ -1238,8 +1242,7 @@ static void phy_error_precise(struct phy_device *phydev,
  *
  * Moves the PHY to the ERROR state in response to a read
  * or write error, and tells the controller the link is down.
- * Must not be called from interrupt context, or while the
- * phydev->lock is held.
+ * Must be called with phydev->lock held.
  */
 void phy_error(struct phy_device *phydev)
 {
diff --git a/drivers/net/phy/sfp-bus.c b/drivers/net/phy/sfp-bus.c
index e8dd47bffe43..208a9393c2df 100644
--- a/drivers/net/phy/sfp-bus.c
+++ b/drivers/net/phy/sfp-bus.c
@@ -258,6 +258,16 @@ void sfp_parse_support(struct sfp_bus *bus, const struct sfp_eeprom_id *id,
 	switch (id->base.extended_cc) {
 	case SFF8024_ECC_UNSPEC:
 		break;
+	case SFF8024_ECC_100G_25GAUI_C2M_AOC:
+		if (br_min <= 28000 && br_max >= 25000) {
+			/* 25GBASE-R, possibly with FEC */
+			__set_bit(PHY_INTERFACE_MODE_25GBASER, interfaces);
+			/* There is currently no link mode for 25000base
+			 * with unspecified range, reuse SR.
+			 */
+			phylink_set(modes, 25000baseSR_Full);
+		}
+		break;
 	case SFF8024_ECC_100GBASE_SR4_25GBASE_SR:
 		phylink_set(modes, 100000baseSR4_Full);
 		phylink_set(modes, 25000baseSR_Full);