linux/drivers/mtd/ubi/debug.h, branch v3.4.55

UBI: fix debugging messages

2012-01-11T16:35:53Z

Patch ab50ff684707031ed4bad2fdd313208ae392e5bb broke UBI debugging messages: before that commit when UBI debugging was enabled, users saw few useful debugging messages after attaching an MTD device. However, that patch turned 'dbg_msg()' into 'pr_debug()', so to enable the debugging messages users have to enable them first via /sys/kernel/debug/dynamic_debug/control, which is very impractical. This commit makes 'dbg_msg()' to use 'printk()' instead of 'pr_debug()', just as it was before the breakage. Signed-off-by: Artem Bityutskiy Cc: stable@kernel.org [3.0+]

UBI: do not link debug messages when debugging is disabled

2011-08-19T16:02:27Z

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

2011-06-01T08:23:12Z

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

2011-06-01T08:21:52Z

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

2011-06-01T08:21:52Z

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

2011-06-01T08:21:47Z

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

2011-05-20T05:30:34Z

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

2011-05-20T05:30:34Z

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

2011-05-20T05:30:34Z

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

2011-03-16T11:50:17Z

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