linux.git/drivers/mtd/ubi/debug.h, branch v3.2

UBI: do not link debug messages when debugging is disabled

2011-08-19T16:02:27+00:00

Michal Marek spotted the same issue in UBIFS and this patch fixes UBI,
see "UBIFS: not build debug messages with CONFIG_UBIFS_FS_DEBUG disabled"

When UBI debugging is disabled, we have debugging messages defined as:

if (0)
	pr_debug()

But pr_debug macro defines data structures with debugging data and makes
the linux binary larger, even though we have "if (0)".

Signed-off-by: Artem Bityutskiy

UBI: switch debugging tests knobs to debugfs

2011-06-01T08:23:12+00:00

Kill the UBI 'debug_tsts' module parameter and switch to debugfs. Create
per-test mode files there. E.g., to enable bit-flips emulation you may just do:

echo 1 > /sys/kernel/debug/ubi/ubi0/tst_emulate_bitflips

Signed-off-by: Artem Bityutskiy

UBI: make it possible to use struct ubi_device in debug.h

2011-06-01T08:21:52+00:00

Current layout does not allow us to add inline functions to debug.h which use
the 'struct ubi_device' object, because it is undefined there. Move
'#include "debug.h"' in "ubi.h" down so to make 'struct ubi_device" be defined.
Additionally, this makes it possible to remove a bunch of forward declarations
in "debug.h". This is a preparation to the next patch.

Signed-off-by: Artem Bityutskiy

UBI: prepare debugging stuff to further debugfs conversion

2011-06-01T08:21:52+00:00

We'll need the 'struct ubi_device *ubi' pointer in every debugging function (to
access the ->dbg field), so add this pointer to all the functions implementing
UBI debugging test modes like 'ubi_dbg_is_bitflip()' etc.

Signed-off-by: Artem Bityutskiy

UBI: use debugfs for the extra checks knobs

2011-06-01T08:21:47+00:00

This patch introduces debugfs support to UBI. All the UBI stuff is kept in the
"ubi" debugfs directory, which contains per-UBI device "ubi/ubiX"
sub-directories, containing debugging files. This file also creates
"ubi/ubiX/chk_gen" and "ubi/ubiX/chk_io" knobs for switching general and I/O
extra checks on and off. And it removes the 'debug_chks' UBI module parameters.

Signed-off-by: Artem Bityutskiy

UBI: switch to dynamic printks

2011-05-20T05:30:34+00:00

Remove custom dynamic prints and the module parameter to toggle them and use
the generic kernel dynamic printk infrastructure.

Signed-off-by: Artem Bityutskiy

UBI: turn some macros into static inline

2011-05-20T05:30:34+00:00

Similarly as we have done for UBIFS in
1dcffad74183bb00e8129ba1c5bb2c9931d31bd7, turn the debugging macros into static
inline functions, for the same reasons: to avoid gcc 4.5 warnings.

Signed-off-by: Artem Bityutskiy

UBI: improve checking in debugging prints

2011-05-20T05:30:34+00:00

When debugging is disabled, define debugging prints as if (0) printk() to make
sure that the compiler still the format string in debugging messages even if
debugging is disabled.

Signed-off-by: Artem Bityutskiy

UBI: make tests modes dynamic

2011-03-16T11:50:17+00:00

Similarly to the debugging checks and message, make the test modes
be dynamically selected via the "debug_tsts" module parameter or
via the "/sys/module/ubi/parameters/debug_tsts" sysfs file. This
is consistent with UBIFS as well.

And now, since all the Kconfig knobs became dynamic, we can remove
the Kconfig.debug file completely.

Signed-off-by: Artem Bityutskiy

UBI: make self-checks dynamic

2011-03-16T11:50:16+00:00

This patch adds a possibility to dynamically switch UBI self-checks
on and off, instead of toggling them compile-time from the configuration
menu. This is much more flexible, and consistent with UBIFS, and this
also simplifies UBI Kconfig menu and the code.

This patch introduces two levels of self-checks - general, which
includes all self-checks which are relatively fast, and I/O, which
includes write-verify checks and erase-verify checks, which are
relatively slow and involve flash I/O.

Signed-off-by: Artem Bityutskiy