diff options
| author | Per Forlin <per.forlin@linaro.org> | 2011-08-19 14:52:37 +0200 |
|---|---|---|
| committer | Ulf HANSSON <ulf.hansson@stericsson.com> | 2011-10-10 12:00:07 +0200 |
| commit | 99d61fbb21506248b9fcafd77f2ac97b8e73b5af (patch) | |
| tree | dbe6fee8f641ce0ab19e6d8a3656a08ff6537fff /lib | |
| parent | 59cf8f08c6065aea5592546734c79abc3f101961 (diff) | |
mmc: core: add random fault injection
This adds support to inject data errors after a completed host transfer.
The mmc core will return error even though the host transfer is successful.
This simple fault injection proved to be very useful to test the
non-blocking error handling in the mmc_blk_issue_rw_rq().
Random faults can also test how the host driver handles pre_req()
and post_req() in case of errors.
Signed-off-by: Per Forlin <per.forlin@linaro.org>
Acked-by: Akinobu Mita <akinobu.mita@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Change-Id: Id26447a00f055c7cde48ff941188f18bf8eb9cad
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/33379
Reviewed-by: Ulf HANSSON <ulf.hansson@stericsson.com>
Tested-by: Ulf HANSSON <ulf.hansson@stericsson.com>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.debug | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index c6b006a936f..aff06104b57 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1068,6 +1068,17 @@ config FAIL_IO_TIMEOUT Only works with drivers that use the generic timeout handling, for others it wont do anything. +config FAIL_MMC_REQUEST + bool "Fault-injection capability for MMC IO" + select DEBUG_FS + depends on FAULT_INJECTION && MMC + help + Provide fault-injection capability for MMC IO. + This will make the mmc core return data errors. This is + useful to test the error handling in the mmc block device + and to test how the mmc host driver handles retries from + the block device. + config FAULT_INJECTION_DEBUG_FS bool "Debugfs entries for fault-injection capabilities" depends on FAULT_INJECTION && SYSFS && DEBUG_FS |