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authorMiquel Raynal2021-11-18 12:46:59 +0100
committerMiquel Raynal2021-12-09 17:51:59 +0100
commit67b967ddd93d0ed57d392a00f6f90060f0910c0e (patch)
tree7e14f4a0ffe941e5e1dbf883869ed55f0e608f0c /include/linux/mtd
parent00596576a05145a1b5672897a82ef87af00becf4 (diff)
mtd: Introduce an expert mode for forensics and debugging purposes
When developping NAND controller drivers or when debugging filesystem corruptions, it is quite common to need hacking locally into the MTD/NAND core in order to get access to the content of the bad blocks. Instead of having multiple implementations out there let's provide a simple yet effective specific MTD-wide debugfs entry to fully disable these checks on purpose. A warning is added to inform the user when this mode gets enabled. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20211118114659.1282855-1-miquel.raynal@bootlin.com
Diffstat (limited to 'include/linux/mtd')
-rw-r--r--include/linux/mtd/mtd.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index f5e7dfc2e4e9..1ffa933121f6 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -711,4 +711,7 @@ static inline int mtd_is_bitflip_or_eccerr(int err) {
unsigned mtd_mmap_capabilities(struct mtd_info *mtd);
+extern char *mtd_expert_analysis_warning;
+extern bool mtd_expert_analysis_mode;
+
#endif /* __MTD_MTD_H__ */