mvebu: drop linux 4.4 and 4.9 support

[openwrt/staging/wigyori.git] / target / linux / mvebu / patches-4.9 / 409-net-phy-don-t-double-read-clause-45-status-register.patch

diff --git a/target/linux/mvebu/patches-4.9/409-net-phy-don-t-double-read-clause-45-status-register.patch b/target/linux/mvebu/patches-4.9/409-net-phy-don-t-double-read-clause-45-status-register.patch
deleted file mode 100644 (file)
index ee53fe0..0000000
--- a/target/linux/mvebu/patches-4.9/409-net-phy-don-t-double-read-clause-45-status-register.patch
+++ /dev/null
@@ -1,35 +0,0 @@
-From: Russell King <rmk+kernel@armlinux.org.uk>
-Date: Thu, 5 Jan 2017 00:23:40 +0000
-Subject: [PATCH] net: phy: don't double-read clause 45 status register
-
-One of the design decisions behind the link status bit in the status
-register is that it latches low on link loss.  This is so that link loss
-events are not missed.  Double-reading the status register means that we
-always read the current state of the link, clearing any link loss event.
-
-This can cause problems - for example, if the link has negotiated a
-different set of operating parameters, these will not be communicated
-to the MAC as the PHY state machine will still think that the link has
-remained active.
-
-Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
----
-
---- a/drivers/net/phy/phy-c45.c
-+++ b/drivers/net/phy/phy-c45.c
-@@ -143,12 +143,9 @@ int genphy_c45_read_link(struct phy_devi
-               devad = __ffs(mmd_mask);
-               mmd_mask &= ~BIT(devad);
- 
--              val = phy_read_mmd(phydev, devad, MDIO_STAT1);
--              if (val < 0)
--                      return val;
--
--              /* Read twice because link state is latched and a
--               * read moves the current state into the register
-+              /* The link state is latched low so that momentary link
-+               * drops can be detected.  Do not double-read the status
-+               * register if the link is down.
-                */
-               val = phy_read_mmd(phydev, devad, MDIO_STAT1);
-               if (val < 0)