kernel: delete Linux 5.4 config and patches

As the upcoming release will be based on Linux 5.10 only, remove all
kernel configuration as well as patches for Linux 5.4.
There were no targets still actively using Linux 5.4.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit 3a14580411adfb75f9a44eded9f41245b9e44606)

1 files changed, 0 insertions, 124 deletions

diff --git a/target/linux/generic/backport-5.4/720-v5.5-net-sfp-move-sfp-sub-state-machines-into-separate-fu.patch b/target/linux/generic/backport-5.4/720-v5.5-net-sfp-move-sfp-sub-state-machines-into-separate-fu.patch
deleted file mode 100644
index e4ca85b6e2..0000000000
--- a/target/linux/generic/backport-5.4/720-v5.5-net-sfp-move-sfp-sub-state-machines-into-separate-fu.patch
+++ /dev/null
@@ -1,124 +0,0 @@
-From b9d6ed5cdb67533feda7f221eb06f2f9f1ff5047 Mon Sep 17 00:00:00 2001
-From: Russell King <rmk+kernel@armlinux.org.uk>
-Date: Fri, 11 Oct 2019 19:33:58 +0100
-Subject: [PATCH 618/660] net: sfp: move sfp sub-state machines into separate
- functions
-
-Move the SFP sub-state machines out of the main state machine function,
-in preparation for it doing a bit more with the device state.  By doing
-so, we ensure that our debug after the main state machine is always
-printed.
-
-Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
----
- drivers/net/phy/sfp.c | 74 +++++++++++++++++++++++++------------------
- 1 file changed, 43 insertions(+), 31 deletions(-)
-
---- a/drivers/net/phy/sfp.c
-+++ b/drivers/net/phy/sfp.c
-@@ -1544,19 +1544,34 @@ static void sfp_sm_mod_remove(struct sfp
- 	dev_info(sfp->dev, "module removed\n");
- }
- 
--static void sfp_sm_event(struct sfp *sfp, unsigned int event)
-+/* This state machine tracks the netdev up/down state */
-+static void sfp_sm_device(struct sfp *sfp, unsigned int event)
- {
--	mutex_lock(&sfp->sm_mutex);
-+	switch (sfp->sm_dev_state) {
-+	default:
-+		if (event == SFP_E_DEV_UP)
-+			sfp->sm_dev_state = SFP_DEV_UP;
-+		break;
- 
--	dev_dbg(sfp->dev, "SM: enter %s:%s:%s event %s\n",
--		mod_state_to_str(sfp->sm_mod_state),
--		dev_state_to_str(sfp->sm_dev_state),
--		sm_state_to_str(sfp->sm_state),
--		event_to_str(event));
-+	case SFP_DEV_UP:
-+		if (event == SFP_E_DEV_DOWN) {
-+			/* If the module has a PHY, avoid raising TX disable
-+			 * as this resets the PHY. Otherwise, raise it to
-+			 * turn the laser off.
-+			 */
-+			if (!sfp->mod_phy)
-+				sfp_module_tx_disable(sfp);
-+			sfp->sm_dev_state = SFP_DEV_DOWN;
-+		}
-+		break;
-+	}
-+}
- 
--	/* This state machine tracks the insert/remove state of
--	 * the module, and handles probing the on-board EEPROM.
--	 */
-+/* This state machine tracks the insert/remove state of
-+ * the module, and handles probing the on-board EEPROM.
-+ */
-+static void sfp_sm_module(struct sfp *sfp, unsigned int event)
-+{
- 	switch (sfp->sm_mod_state) {
- 	default:
- 		if (event == SFP_E_INSERT && sfp->attached) {
-@@ -1596,27 +1611,10 @@ static void sfp_sm_event(struct sfp *sfp
- 		}
- 		break;
- 	}
-+}
- 
--	/* This state machine tracks the netdev up/down state */
--	switch (sfp->sm_dev_state) {
--	default:
--		if (event == SFP_E_DEV_UP)
--			sfp->sm_dev_state = SFP_DEV_UP;
--		break;
--
--	case SFP_DEV_UP:
--		if (event == SFP_E_DEV_DOWN) {
--			/* If the module has a PHY, avoid raising TX disable
--			 * as this resets the PHY. Otherwise, raise it to
--			 * turn the laser off.
--			 */
--			if (!sfp->mod_phy)
--				sfp_module_tx_disable(sfp);
--			sfp->sm_dev_state = SFP_DEV_DOWN;
--		}
--		break;
--	}
--
-+static void sfp_sm_main(struct sfp *sfp, unsigned int event)
-+{
- 	/* Some events are global */
- 	if (sfp->sm_state != SFP_S_DOWN &&
- 	    (sfp->sm_mod_state != SFP_MOD_PRESENT ||
-@@ -1627,7 +1625,6 @@ static void sfp_sm_event(struct sfp *sfp
- 		if (sfp->mod_phy)
- 			sfp_sm_phy_detach(sfp);
- 		sfp_sm_next(sfp, SFP_S_DOWN, 0);
--		mutex_unlock(&sfp->sm_mutex);
- 		return;
- 	}
- 
-@@ -1682,6 +1679,21 @@ static void sfp_sm_event(struct sfp *sfp
- 	case SFP_S_TX_DISABLE:
- 		break;
- 	}
-+}
-+
-+static void sfp_sm_event(struct sfp *sfp, unsigned int event)
-+{
-+	mutex_lock(&sfp->sm_mutex);
-+
-+	dev_dbg(sfp->dev, "SM: enter %s:%s:%s event %s\n",
-+		mod_state_to_str(sfp->sm_mod_state),
-+		dev_state_to_str(sfp->sm_dev_state),
-+		sm_state_to_str(sfp->sm_state),
-+		event_to_str(event));
-+
-+	sfp_sm_module(sfp, event);
-+	sfp_sm_device(sfp, event);
-+	sfp_sm_main(sfp, event);
- 
- 	dev_dbg(sfp->dev, "SM: exit %s:%s:%s\n",
- 		mod_state_to_str(sfp->sm_mod_state),