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+comment "UBI debugging options"
+ depends on MTD_UBI
+
+config MTD_UBI_DEBUG
+ bool "UBI debugging"
+ depends on SYSFS
+ depends on MTD_UBI
+ select DEBUG_FS
+ select KALLSYMS_ALL
+ help
+ This option enables UBI debugging.
+
+config MTD_UBI_DEBUG_MSG
+ bool "UBI debugging messages"
+ depends on MTD_UBI_DEBUG
+ default n
+ help
+ This option enables UBI debugging messages.
+
+config MTD_UBI_DEBUG_PARANOID
+ bool "Extra self-checks"
+ default n
+ depends on MTD_UBI_DEBUG
+ help
+ This option enables extra checks in UBI code. Note this slows UBI down
+ significantly.
+
+config MTD_UBI_DEBUG_DISABLE_BGT
+ bool "Do not enable the UBI background thread"
+ depends on MTD_UBI_DEBUG
+ default n
+ help
+ This option switches the background thread off by default. The thread
+ may be also be enabled/disabled via UBI sysfs.
+
+config MTD_UBI_DEBUG_USERSPACE_IO
+ bool "Direct user-space write/erase support"
+ default n
+ depends on MTD_UBI_DEBUG
+ help
+ By default, users cannot directly write and erase individual
+ eraseblocks of dynamic volumes, and have to use update operation
+ instead. This option enables this capability - it is very useful for
+ debugging and testing.
+
+config MTD_UBI_DEBUG_EMULATE_BITFLIPS
+ bool "Emulate flash bit-flips"
+ depends on MTD_UBI_DEBUG
+ default n
+ help
+ This option emulates bit-flips with probability 1/50, which in turn
+ causes scrubbing. Useful for debugging and stressing UBI.
+
+config MTD_UBI_DEBUG_EMULATE_WRITE_FAILURES
+ bool "Emulate flash write failures"
+ depends on MTD_UBI_DEBUG
+ default n
+ help
+ This option emulates write failures with probability 1/100. Useful for
+ debugging and testing how UBI handlines errors.
+
+config MTD_UBI_DEBUG_EMULATE_ERASE_FAILURES
+ bool "Emulate flash erase failures"
+ depends on MTD_UBI_DEBUG
+ default n
+ help
+ This option emulates erase failures with probability 1/100. Useful for
+ debugging and testing how UBI handlines errors.
+
+menu "Additional UBI debugging messages"
+ depends on MTD_UBI_DEBUG
+
+config MTD_UBI_DEBUG_MSG_BLD
+ bool "Additional UBI initialization and build messages"
+ default n
+ depends on MTD_UBI_DEBUG
+ help
+ This option enables detailed UBI initialization and device build
+ debugging messages.
+
+config MTD_UBI_DEBUG_MSG_EBA
+ bool "Eraseblock association unit messages"
+ default n
+ depends on MTD_UBI_DEBUG
+ help
+ This option enables debugging messages from the UBI eraseblock
+ association unit.
+
+config MTD_UBI_DEBUG_MSG_WL
+ bool "Wear-leveling unit messages"
+ default n
+ depends on MTD_UBI_DEBUG
+ help
+ This option enables debugging messages from the UBI wear-leveling
+ unit.
+
+config MTD_UBI_DEBUG_MSG_IO
+ bool "Input/output unit messages"
+ default n
+ depends on MTD_UBI_DEBUG
+ help
+ This option enables debugging messages from the UBI input/output unit.
+
+endmenu # UBI debugging messages