generic: copy backport, hack, pending patch and config from 5.15 to 6.1

Copy backport, hack, pending patch and config from 5.15 to 6.1.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>

target/linux/generic/pending-6.1/460-mtd-cfi_cmdset_0002-no-erase_suspend.patch

@@ -0,0 +1,25 @@
+From: Felix Fietkau <nbd@nbd.name>
+Subject: kernel: disable cfi cmdset 0002 erase suspend
+
+on some platforms, erase suspend leads to data corruption and lockups when write
+ops collide with erase ops. this has been observed on the buffalo wzr-hp-g300nh.
+rather than play whack-a-mole with a hard to reproduce issue on a variety of devices,
+simply disable erase suspend, as it will usually not produce any useful gain on
+the small filesystems used on embedded hardware.
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+ drivers/mtd/chips/cfi_cmdset_0002.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/mtd/chips/cfi_cmdset_0002.c
++++ b/drivers/mtd/chips/cfi_cmdset_0002.c
+@@ -907,7 +907,7 @@ static int get_chip(struct map_info *map
+ 		return 0;
+ 
+ 	case FL_ERASING:
+-		if (!cfip || !(cfip->EraseSuspend & (0x1|0x2)) ||
++		if (1 /* no suspend */ || !cfip || !(cfip->EraseSuspend & (0x1|0x2)) ||
+ 		    !(mode == FL_READY || mode == FL_POINT ||
+ 		    (mode == FL_WRITING && (cfip->EraseSuspend & 0x2))))
+ 			goto sleep;