linux-toradex.git/drivers/mtd/tests, branch v3.2.12-rt22

mtd: tests: stresstest: bail out if device has not enough eraseblocks

2012-01-26T00:13:06+00:00

commit 2f4478ccff7df845dc9c0f8996a96373122c4417 upstream.

stresstest needs at least two eraseblocks. Bail out gracefully if that
condition is not met. Fixes the following 'division by zero' OOPS:

[  619.100000] mtd_stresstest: MTD device size 131072, eraseblock size 131072, page size 2048, count of eraseblocks 1, pages per eraseblock 64, OOB size 64
[  619.120000] mtd_stresstest: scanning for bad eraseblocks
[  619.120000] mtd_stresstest: scanned 1 eraseblocks, 0 are bad
[  619.130000] mtd_stresstest: doing operations
[  619.130000] mtd_stresstest: 0 operations done
[  619.140000] Division by zero in kernel.
...

caused by

        /* Read or write up 2 eraseblocks at a time - hence 'ebcnt - 1' */
        eb %= (ebcnt - 1);

Signed-off-by: Wolfram Sang 
Signed-off-by: Artem Bityutskiy 
Signed-off-by: David Woodhouse 
Signed-off-by: Greg Kroah-Hartman

mtd: tests: don't use mtd0 as a default

2011-10-30T12:31:04+00:00

mtd tests may erase the mtd device, so force the user to specify which
mtd device to test by using the module parameter. Disable the default
(using mtd0) since this may destroy a vital part of the flash if the
module is inserted accidently or carelessly.

Reported-by: Roland Kletzing 
Signed-off-by: Wolfram Sang 
Signed-off-by: Artem Bityutskiy

mtd: utilize `mtd_is_*()' functions

2011-09-21T06:19:06+00:00

Signed-off-by: Brian Norris 
Signed-off-by: Artem Bityutskiy

mtd: rename MTD_OOB_* to MTD_OPS_*

2011-09-11T12:28:59+00:00

These modes are not necessarily for OOB only. Particularly, MTD_OOB_RAW
affected operations on in-band page data as well. To clarify these
options and to emphasize that their effect is applied per-operation, we
change the primary prefix to MTD_OPS_.

Signed-off-by: Brian Norris 
Signed-off-by: Artem Bityutskiy

mtd: tests: ignore corrected bitflips in OOB on mtd_readtest

2011-09-11T12:02:14+00:00

read_oob may now return ECC error codes. If the code is -EUCLEAN, then
we can safely ignore the error as a corrected bitflip.

Signed-off-by: Brian Norris 
Signed-off-by: Artem Bityutskiy

mtd: speedtest: fix integer overflow

2011-03-11T14:22:49+00:00

32-bit integers used in 'calc_speed()' may overflow and lead to
incorrect results. Use 64-bit integers instead.

Signed-off-by: David Lambert 
Signed-off-by: Artem Bityutskiy 
Signed-off-by: David Woodhouse

mtd: tests: add multiblock erase test to the mtd_speedtest

2011-03-11T14:22:45+00:00

New multiblock erase speed test is added to mtd_speedtest.
It consists of 2-, 4-, 8-, 16-, 32- and 64-blocks at once
multiblock erase tests.

Signed-off-by: Roman Tereshonkov 
Signed-off-by: Artem Bityutskiy 
Signed-off-by: David Woodhouse

mtd: tests: add count parameter to mtd_speedtest

2011-03-11T14:22:45+00:00

By default mtd_speedtest uses all the eraseblocks of the
MTD partition being tested.  For large partitions a
smaller number is sufficient and makes running the test
quicker.  For that reason, add a parameter 'count' to
specify the maximum number of eraseblocks to use for
testing.

Signed-off-by: Adrian Hunter 
Signed-off-by: Artem Bityutskiy 
Signed-off-by: David Woodhouse

mtd: tests: print correct values

2011-03-11T14:22:44+00:00

The ebcnt and pgcnt variable initialization is moved before printk
which uses them.

Signed-off-by: Roman Tereshonkov 
Signed-off-by: Artem Bityutskiy 
Signed-off-by: David Woodhouse

mtd: tests: return -1 if verify failed

2010-08-02T08:06:20+00:00

Signed-off-by: Roel Kluin 
Signed-off-by: Artem Bityutskiy 
Signed-off-by: David Woodhouse