xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

UBI: add write checking

Browse Source 
Add an extra debugging check function which validates writes.
After every write it reads the data back, compares it with the
original data, and complains if they mismatch.

Useful for debugging. No-op if extra debugging checks are disabled.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
This commit is contained in:
Artem Bityutskiy
2010-01-25 17:09:30 +02:00
parent adbf05e3ec
commit 6e9065d756
2 changed files with 74 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/mtd/ubi/debug.h
View File

@@ -96,8 +96,11 @@ void ubi_dbg_dump_flash(struct ubi_device *ubi, int pnum, int offset, int len);
#ifdef CONFIG_MTD_UBI_DEBUG_PARANOID
int ubi_dbg_check_all_ff(struct ubi_device *ubi, int pnum, int offset, int len);
int ubi_dbg_check_write(struct ubi_device *ubi, const void *buf, int pnum,
int offset, int len);
#else
#define ubi_dbg_check_all_ff(ubi, pnum, offset, len) 0
#define ubi_dbg_check_write(ubi, buf, pnum, offset, len) 0
#endif
#ifdef CONFIG_MTD_UBI_DEBUG_DISABLE_BGT
@@ -176,6 +179,7 @@ static inline int ubi_dbg_is_erase_failure(void)
#define ubi_dbg_is_write_failure() 0
#define ubi_dbg_is_erase_failure() 0
#define ubi_dbg_check_all_ff(ubi, pnum, offset, len) 0
#define ubi_dbg_check_write(ubi, buf, pnum, offset, len) 0
#endif /* !CONFIG_MTD_UBI_DEBUG */
#endif /* !__UBI_DEBUG_H__ */