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, 130 deletions

diff --git a/target/linux/generic/pending-5.4/411-mtd-partial_eraseblock_write.patch b/target/linux/generic/pending-5.4/411-mtd-partial_eraseblock_write.patch
deleted file mode 100644
index c48a144d3d..0000000000
--- a/target/linux/generic/pending-5.4/411-mtd-partial_eraseblock_write.patch
+++ /dev/null
@@ -1,130 +0,0 @@
-From: Felix Fietkau <nbd@nbd.name>
-Subject: mtd: implement write support for partitions covering only a part of an eraseblock (buffer data that would otherwise be erased)
-
-lede-commit: 87a8e8ac1067f58ba831c4aae443f3655c31cd80
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
----
- drivers/mtd/mtdpart.c   | 90 ++++++++++++++++++++++++++++++++++++++++++++-----
- include/linux/mtd/mtd.h |  4 +++
- 2 files changed, 85 insertions(+), 9 deletions(-)
-
---- a/drivers/mtd/mtdpart.c
-+++ b/drivers/mtd/mtdpart.c
-@@ -22,6 +22,8 @@
- #include "mtdcore.h"
- #include "mtdsplit/mtdsplit.h"
- 
-+#define MTD_ERASE_PARTIAL	0x8000 /* partition only covers parts of an erase block */
-+
- /* Our partition linked list */
- static LIST_HEAD(mtd_partitions);
- static DEFINE_MUTEX(mtd_partitions_mutex);
-@@ -206,11 +208,77 @@ static int part_erase(struct mtd_info *m
- {
- 	struct mtd_part *part = mtd_to_part(mtd);
- 	int ret;
-+	size_t wrlen = 0;
-+	u8 *erase_buf = NULL;
-+	u32 erase_buf_ofs = 0;
-+	bool partial_start = false;
-+
-+	if (mtd->flags & MTD_ERASE_PARTIAL) {
-+		size_t readlen = 0;
-+		u64 mtd_ofs;
-+
-+		erase_buf = kmalloc(part->parent->erasesize, GFP_ATOMIC);
-+		if (!erase_buf)
-+			return -ENOMEM;
-+
-+		mtd_ofs = part->offset + instr->addr;
-+		erase_buf_ofs = do_div(mtd_ofs, part->parent->erasesize);
-+
-+		if (erase_buf_ofs > 0) {
-+			instr->addr -= erase_buf_ofs;
-+			ret = mtd_read(part->parent,
-+				instr->addr + part->offset,
-+				part->parent->erasesize,
-+				&readlen, erase_buf);
-+
-+			instr->len += erase_buf_ofs;
-+			partial_start = true;
-+		} else {
-+			mtd_ofs = part->offset + part->mtd.size;
-+			erase_buf_ofs = part->parent->erasesize -
-+				do_div(mtd_ofs, part->parent->erasesize);
-+
-+			if (erase_buf_ofs > 0) {
-+				instr->len += erase_buf_ofs;
-+				ret = mtd_read(part->parent,
-+					part->offset + instr->addr +
-+					instr->len - part->parent->erasesize,
-+					part->parent->erasesize, &readlen,
-+					erase_buf);
-+			} else {
-+				ret = 0;
-+			}
-+		}
-+		if (ret < 0) {
-+			kfree(erase_buf);
-+			return ret;
-+		}
-+
-+	}
- 
- 	instr->addr += part->offset;
- 	ret = part->parent->_erase(part->parent, instr);
- 	if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
- 		instr->fail_addr -= part->offset;
-+
-+	if (mtd->flags & MTD_ERASE_PARTIAL) {
-+		if (partial_start) {
-+			part->parent->_write(part->parent,
-+				instr->addr, erase_buf_ofs,
-+				&wrlen, erase_buf);
-+			instr->addr += erase_buf_ofs;
-+		} else {
-+			instr->len -= erase_buf_ofs;
-+			part->parent->_write(part->parent,
-+				instr->addr + instr->len,
-+				erase_buf_ofs, &wrlen,
-+				erase_buf +
-+				part->parent->erasesize -
-+				erase_buf_ofs);
-+		}
-+		kfree(erase_buf);
-+	}
-+
- 	instr->addr -= part->offset;
- 
- 	return ret;
-@@ -525,19 +593,22 @@ static struct mtd_part *allocate_partiti
- 	remainder = do_div(tmp, wr_alignment);
- 	if ((slave->mtd.flags & MTD_WRITEABLE) && remainder) {
- 		/* Doesn't start on a boundary of major erase size */
--		/* FIXME: Let it be writable if it is on a boundary of
--		 * _minor_ erase size though */
--		slave->mtd.flags &= ~MTD_WRITEABLE;
--		printk(KERN_WARNING"mtd: partition \"%s\" doesn't start on an erase/write block boundary -- force read-only\n",
--			part->name);
-+		slave->mtd.flags |= MTD_ERASE_PARTIAL;
-+		if (((u32)slave->mtd.size) > parent->erasesize)
-+			slave->mtd.flags &= ~MTD_WRITEABLE;
-+		else
-+			slave->mtd.erasesize = slave->mtd.size;
- 	}
- 
- 	tmp = part_absolute_offset(parent) + slave->offset + slave->mtd.size;
- 	remainder = do_div(tmp, wr_alignment);
- 	if ((slave->mtd.flags & MTD_WRITEABLE) && remainder) {
--		slave->mtd.flags &= ~MTD_WRITEABLE;
--		printk(KERN_WARNING"mtd: partition \"%s\" doesn't end on an erase/write block -- force read-only\n",
--			part->name);
-+		slave->mtd.flags |= MTD_ERASE_PARTIAL;
-+
-+		if ((u32)slave->mtd.size > parent->erasesize)
-+			slave->mtd.flags &= ~MTD_WRITEABLE;
-+		else
-+			slave->mtd.erasesize = slave->mtd.size;
- 	}
- 
- 	mtd_set_ooblayout(&slave->mtd, &part_ooblayout_ops);