kernel: remove support for kernel 4.19

We use 5.4 on all targets by default, and 4.19 has never been released
in a stable version. There is no reason to keep it.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

1 files changed, 0 insertions, 80 deletions

diff --git a/target/linux/generic/backport-4.19/731-v5.5-net-sfp-ensure-TX_FAULT-has-deasserted-before-probin.patch b/target/linux/generic/backport-4.19/731-v5.5-net-sfp-ensure-TX_FAULT-has-deasserted-before-probin.patch
deleted file mode 100644
index 03415fb6e7..0000000000
--- a/target/linux/generic/backport-4.19/731-v5.5-net-sfp-ensure-TX_FAULT-has-deasserted-before-probin.patch
+++ /dev/null
@@ -1,80 +0,0 @@
-From 38b62a12231be4b86fc5ca5477579d29831c02a5 Mon Sep 17 00:00:00 2001
-From: Russell King <rmk+kernel@armlinux.org.uk>
-Date: Fri, 18 Oct 2019 10:31:07 +0100
-Subject: [PATCH 629/660] net: sfp: ensure TX_FAULT has deasserted before
- probing the PHY
-
-TX_FAULT should be deasserted to indicate that the module has completed
-its initialisation.  This may include the on-board PHY, so wait until
-the module has deasserted TX_FAULT before probing the PHY.
-
-This means that we need an extra state to handle a TX_FAULT that
-remains set for longer than t_init, since using the existing handling
-state would bypass the PHY probe.
-
-Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
----
- drivers/net/phy/sfp.c | 31 +++++++++++++++++++++++++------
- 1 file changed, 25 insertions(+), 6 deletions(-)
-
---- a/drivers/net/phy/sfp.c
-+++ b/drivers/net/phy/sfp.c
-@@ -54,6 +54,7 @@ enum {
- 	SFP_S_DOWN = 0,
- 	SFP_S_WAIT,
- 	SFP_S_INIT,
-+	SFP_S_INIT_TX_FAULT,
- 	SFP_S_WAIT_LOS,
- 	SFP_S_LINK_UP,
- 	SFP_S_TX_FAULT,
-@@ -111,6 +112,7 @@ static const char * const sm_state_strin
- 	[SFP_S_DOWN] = "down",
- 	[SFP_S_WAIT] = "wait",
- 	[SFP_S_INIT] = "init",
-+	[SFP_S_INIT_TX_FAULT] = "init_tx_fault",
- 	[SFP_S_WAIT_LOS] = "wait_los",
- 	[SFP_S_LINK_UP] = "link_up",
- 	[SFP_S_TX_FAULT] = "tx_fault",
-@@ -1595,8 +1597,6 @@ static void sfp_sm_main(struct sfp *sfp,
- 		if (event != SFP_E_TIMEOUT)
- 			break;
- 
--		sfp_sm_probe_for_phy(sfp);
--
- 		if (sfp->state & SFP_F_TX_FAULT) {
- 			/* Wait t_init before indicating that the link is up,
- 			 * provided the current state indicates no TX_FAULT. If
-@@ -1618,10 +1618,29 @@ static void sfp_sm_main(struct sfp *sfp,
- 		break;
- 
- 	case SFP_S_INIT:
--		if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT)
--			sfp_sm_fault(sfp, SFP_S_TX_FAULT, true);
--		else if (event == SFP_E_TIMEOUT || event == SFP_E_TX_CLEAR)
--	init_done:	sfp_sm_link_check_los(sfp);
-+		if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) {
-+			/* TX_FAULT is still asserted after t_init, so assume
-+			 * there is a fault.
-+			 */
-+			sfp_sm_fault(sfp, SFP_S_INIT_TX_FAULT,
-+				     sfp->sm_retries == 5);
-+		} else if (event == SFP_E_TIMEOUT || event == SFP_E_TX_CLEAR) {
-+	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);
-+			sfp_sm_link_check_los(sfp);
-+
-+			/* Reset the fault retry count */
-+			sfp->sm_retries = 5;
-+		}
-+		break;
-+
-+	case SFP_S_INIT_TX_FAULT:
-+		if (event == SFP_E_TIMEOUT) {
-+			sfp_module_tx_fault_reset(sfp);
-+			sfp_sm_next(sfp, SFP_S_INIT, T_INIT_JIFFIES);
-+		}
- 		break;
- 
- 	case SFP_S_WAIT_LOS: