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authorFelix Fietkau <nbd@nbd.name>2022-03-09 16:14:12 +0100
committerFelix Fietkau <nbd@nbd.name>2022-03-25 21:11:09 +0100
commitbe1f2b4d9d01594c2fd20f37b8e63e7cb7a81572 (patch)
tree9137f3e58279157d494e6b9a5068d23ddb9f38dc /target/linux
parent7d1e2be1605eda85e1a607a3d3ddefed1b961d3d (diff)
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kernel: mtk_bmt: on error, do not attempt to remap out-of-range blocks
Pass errors to caller instead Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'target/linux')
-rw-r--r--target/linux/generic/files/drivers/mtd/nand/mtk_bmt.c37
-rw-r--r--target/linux/generic/files/drivers/mtd/nand/mtk_bmt_bbt.c2
2 files changed, 24 insertions, 15 deletions
diff --git a/target/linux/generic/files/drivers/mtd/nand/mtk_bmt.c b/target/linux/generic/files/drivers/mtd/nand/mtk_bmt.c
index 721eb0e6f0..f79a51526d 100644
--- a/target/linux/generic/files/drivers/mtd/nand/mtk_bmt.c
+++ b/target/linux/generic/files/drivers/mtd/nand/mtk_bmt.c
@@ -92,6 +92,17 @@ bool mapping_block_in_range(int block, int *start, int *end)
return false;
}
+static bool
+mtk_bmt_remap_block(u32 block, u32 mapped_block, int copy_len)
+{
+ int start, end;
+
+ if (!mapping_block_in_range(block, &start, &end))
+ return false;
+
+ return bmtd.ops->remap_block(block, mapped_block, copy_len);
+}
+
static int
mtk_bmt_read(struct mtd_info *mtd, loff_t from,
struct mtd_oob_ops *ops)
@@ -101,7 +112,6 @@ mtk_bmt_read(struct mtd_info *mtd, loff_t from,
loff_t cur_from;
int ret = 0;
int max_bitflips = 0;
- int start, end;
ops->retlen = 0;
ops->oobretlen = 0;
@@ -129,16 +139,15 @@ mtk_bmt_read(struct mtd_info *mtd, loff_t from,
else
max_bitflips = max_t(int, max_bitflips, cur_ret);
if (cur_ret < 0 && !mtd_is_bitflip(cur_ret)) {
- bmtd.ops->remap_block(block, cur_block, mtd->erasesize);
- if (retry_count++ < 10)
+ if (mtk_bmt_remap_block(block, cur_block, mtd->erasesize) &&
+ retry_count++ < 10)
continue;
goto out;
}
- if (cur_ret >= mtd->bitflip_threshold &&
- mapping_block_in_range(block, &start, &end))
- bmtd.ops->remap_block(block, cur_block, mtd->erasesize);
+ if (cur_ret >= mtd->bitflip_threshold)
+ mtk_bmt_remap_block(block, cur_block, mtd->erasesize);
ops->retlen += cur_ops.retlen;
ops->oobretlen += cur_ops.oobretlen;
@@ -191,8 +200,8 @@ mtk_bmt_write(struct mtd_info *mtd, loff_t to,
ops->len - ops->retlen);
ret = bmtd._write_oob(mtd, cur_to, &cur_ops);
if (ret < 0) {
- bmtd.ops->remap_block(block, cur_block, offset);
- if (retry_count++ < 10)
+ if (mtk_bmt_remap_block(block, cur_block, offset) &&
+ retry_count++ < 10)
continue;
return ret;
@@ -239,8 +248,8 @@ mtk_bmt_mtd_erase(struct mtd_info *mtd, struct erase_info *instr)
mapped_instr.addr = (loff_t)block << bmtd.blk_shift;
ret = bmtd._erase(mtd, &mapped_instr);
if (ret) {
- bmtd.ops->remap_block(orig_block, block, 0);
- if (retry_count++ < 10)
+ if (mtk_bmt_remap_block(orig_block, block, 0) &&
+ retry_count++ < 10)
continue;
instr->fail_addr = start_addr;
break;
@@ -263,8 +272,8 @@ retry:
block = bmtd.ops->get_mapping_block(orig_block);
ret = bmtd._block_isbad(mtd, (loff_t)block << bmtd.blk_shift);
if (ret) {
- bmtd.ops->remap_block(orig_block, block, bmtd.blk_size);
- if (retry_count++ < 10)
+ if (mtk_bmt_remap_block(orig_block, block, bmtd.blk_size) &&
+ retry_count++ < 10)
goto retry;
}
return ret;
@@ -280,7 +289,7 @@ mtk_bmt_block_markbad(struct mtd_info *mtd, loff_t ofs)
if (block < 0)
return -EIO;
- bmtd.ops->remap_block(orig_block, block, bmtd.blk_size);
+ mtk_bmt_remap_block(orig_block, block, bmtd.blk_size);
return bmtd._block_markbad(mtd, (loff_t)block << bmtd.blk_shift);
}
@@ -317,7 +326,7 @@ static int mtk_bmt_debug_mark_bad(void *data, u64 val)
if (cur_block < 0)
return -EIO;
- bmtd.ops->remap_block(block, cur_block, bmtd.blk_size);
+ mtk_bmt_remap_block(block, cur_block, bmtd.blk_size);
return 0;
}
diff --git a/target/linux/generic/files/drivers/mtd/nand/mtk_bmt_bbt.c b/target/linux/generic/files/drivers/mtd/nand/mtk_bmt_bbt.c
index 3a58f52277..519e1ed70c 100644
--- a/target/linux/generic/files/drivers/mtd/nand/mtk_bmt_bbt.c
+++ b/target/linux/generic/files/drivers/mtd/nand/mtk_bmt_bbt.c
@@ -93,7 +93,7 @@ static bool remap_block_bbt(u16 block, u16 mapped_blk, int copy_len)
if (copy_len > 0)
bbt_nand_copy(new_blk, mapped_blk, copy_len);
- return false;
+ return true;
}
static void