kernel: remove linux 4.1 support

The only target still referencing it is omap24xx, and it is marked as
broken.

Signed-off-by: Felix Fietkau <nbd@nbd.name>

1 files changed, 0 insertions, 51 deletions

diff --git a/target/linux/generic/patches-4.1/494-mtd-ubi-add-EOF-marker-support.patch b/target/linux/generic/patches-4.1/494-mtd-ubi-add-EOF-marker-support.patch
deleted file mode 100644
index dd5ee306ef..0000000000
--- a/target/linux/generic/patches-4.1/494-mtd-ubi-add-EOF-marker-support.patch
+++ /dev/null
@@ -1,51 +0,0 @@
---- a/drivers/mtd/ubi/attach.c
-+++ b/drivers/mtd/ubi/attach.c
-@@ -803,6 +803,13 @@ out_unlock:
- 	return err;
- }
- 
-+static bool ec_hdr_has_eof(struct ubi_ec_hdr *ech)
-+{
-+	return ech->padding1[0] == 'E' &&
-+	       ech->padding1[1] == 'O' &&
-+	       ech->padding1[2] == 'F';
-+}
-+
- /**
-  * scan_peb - scan and process UBI headers of a PEB.
-  * @ubi: UBI device description object
-@@ -833,9 +840,21 @@ static int scan_peb(struct ubi_device *u
- 		return 0;
- 	}
- 
--	err = ubi_io_read_ec_hdr(ubi, pnum, ech, 0);
--	if (err < 0)
--		return err;
-+	if (!ai->eof_found) {
-+		err = ubi_io_read_ec_hdr(ubi, pnum, ech, 0);
-+		if (err < 0)
-+			return err;
-+
-+		if (ec_hdr_has_eof(ech)) {
-+			pr_notice("UBI: EOF marker found, PEBs from %d will be erased",
-+				pnum);
-+			ai->eof_found = true;
-+		}
-+	}
-+
-+	if (ai->eof_found)
-+		err = UBI_IO_FF_BITFLIPS;
-+
- 	switch (err) {
- 	case 0:
- 		break;
---- a/drivers/mtd/ubi/ubi.h
-+++ b/drivers/mtd/ubi/ubi.h
-@@ -741,6 +741,7 @@ struct ubi_attach_info {
- 	int mean_ec;
- 	uint64_t ec_sum;
- 	int ec_count;
-+	bool eof_found;
- 	struct kmem_cache *aeb_slab_cache;
- };
-