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2019-06-01mkfs.ubifs: Add ZSTD compressionSebastian Andrzej Siewior
I added ZSTD support to mkfs.ubifs and compared the ZSTD results with zlib/lzo and the available ZSTD compression levels. The results are in the following table: Comp image MiB time image2 MiB time none 271 0m 0,723s 223 0m 0,589s lzo 164 0m13,705s 116 0m11,636s zlib 150 0m 7,654s 103 0m 6,347s favor-lzo 158 0m21,137s 110 0m17,764s zstd-01 154 0m 1,607s 106 0m 1,429s zstd-02 153 0m 1,704s 105 0m 1,479s zstd-03* 152 0m 1,888s 104 0m 1,668s zstd-04 151 0m 2,741s 103 0m 2,391s zstd-05 150 0m 3,257s 102 0m 2,916s zstd-06 150 0m 3,735s 102 0m 3,356s zstd-07 150 0m 4,066s 102 0m 3,705s zstd-08 152 0m 1,857s 104 0m 1,644s zstd-09 152 0m 1,855s 104 0m 1,639s zstd-10 150 0m 6,654s 102 0m 6,195s zstd-11 150 0m10,027s 102 0m 9,130s zstd-12 149 0m14,724s 101 0m13,415s zstd-13 148 0m18,232s 100 0m16,719s zstd-14 148 0m20,859s 100 0m19,554s zstd-15 148 0m25,033s 100 0m23,186s zstd-16 148 0m38,837s 100 0m36,543s zstd-17 148 0m46,051s 100 0m43,120s zstd-18 148 0m49,157s 100 0m45,807s zstd-19 148 0m49,421s 100 0m45,951s zstd-20 148 0m51,271s 100 0m48,030s zstd-21 148 0m51,015s 100 0m48,676s zstd-22 148 0m52,575s 100 0m50,013s The UBIFS image was created via mkfs.ubifs -x $Comp -m 512 -e 128KiB -c 2200 -r $image $out I used "debootstrap sid" to create a basic RFS and the results are in the `image' column. The image2 column denotes the results for the same image but with .deb files removed. The time column contains the output of the run time of the command. ZSTD's compression level three is currently default. Based on the compression results (for the default level) it outperforms LZO in run time and compression and is almost as good as ZLIB in terms of compression but quicker. The higher compression levels make almost no difference in compression but take a lot of time. The compression level used is the default offered by ZSTD. It does not make sense the higher levels. Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2018-11-01common: Add round functionsRichard Weinberger
Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2018-11-01Import latest ubifs-media.hRichard Weinberger
Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2018-10-02mtd-utils: Instead of doing preprocessor magic, just output off_t as long longThorsten Glaser
Fix warnings abot PRIdoff_t in libmtd.c, in mtd_read (and mtd_write): In file included from ../git/lib/libmtd.c:40:0: ../git/lib/libmtd.c: In function 'mtd_read': ../git/include/common.h:110:18: warning: format '%ld' expects argument of type 'long int', but argument 5 has type 'off_t {aka long long int}' [-Wformat=] ../git/include/common.h:120:2: note: in expansion of macro 'errmsg' errmsg(fmt, ##__VA_ARGS__); \ ^~~~~~ ../git/lib/libmtd.c:1082:10: note: in expansion of macro 'sys_errmsg' return sys_errmsg("cannot seek mtd%d to offset %"PRIdoff_t, ^~~~~~~~~~ /usr/lib/klibc/include/inttypes.h:28:17: note: format string is defined here #define PRId32 "d" Signed-off-by: Thorsten Glaser <tg@mirbsd.org> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2018-09-20mtd-utils: common.h: fix prompt functionDavid Oberhollenzer
The prompt() function is intended to query a yes/no reply from a command line user by reading in an entire line of text using getline() and checking the first character. If the line is empty, a default value is returned. First of all, this patch replaces the usage of getline() with fgets() to avoid compilation problems on some smaller C libraries, like klibc, that do not have a getline() implementation. Since we now have a static line length, this may break some build setups that input lengthy giberish instead of 'y' or 'n'. Second, this patch fixes a more severe bug in prompt(), replacing a 'while' keyword with the 'if' that was most likely intended. In the old version, if getline() reported an error, it would print an error message inside a while loop, immediately followed by a break and then march on and process the erroneous input instead of using the default value as printed to stdout. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2018-06-28libubi: add volume flags to ubi_mkvol_requestQuentin Schulz
Now that we have per-UBI volume flags (for instance for skipping CRC check when opening it) from the Linux header, let's add it to the ubi_mkvol_request in libubi and assign the flags to ubi_mkvol_req from the Linux header from ubi_mkvol. Suggested-by: Boris Brezillon <boris.brezillon@bootlin.com> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2018-06-28UBI: update ubi-user.h and ubi-media.hQuentin Schulz
Update both header files to add support for flag specifying whether to skip the CRC check for static UBI volumes. Taken from the kernel headers. Some users of static UBI volumes implement their own integrity check, thus making the volume CRC check done at open time useless. For instance, this is the case when one use the ubiblock + dm-verity + squashfs combination, where dm-verity already checks integrity of the block device but this time at the block granularity instead of verifying the whole volume. Skipping this test drastically improves the boot-time. Suggested-by: Boris Brezillon <boris.brezillon@bootlin.com> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2018-04-10libmtd: Add support to access OOB available sizeXiaolei Li
This patch exposes OOB available size to user. Then user can use OOB free area according to OOB available size. Steps to get OOB available size: First, access /sys/class/mtd/mtdX/oobavail. If not exist, then try to get ecc layout by ioctl "ECCGETLAYOUT". If none of them work, set OOB available size to 0. Signed-off-by: Xiaolei Li <xiaolei.li@mediatek.com> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2017-11-18libscan: fix a comment typo in libscan.hRock Lee
Signed-off-by: Rock Lee <rockdotlee@gmail.com> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2017-11-02Add no-return attribute to usage() style functionsDavid Oberhollenzer
A common pattern in command line processing is having a usage() function that prints out how to use the command line options and then terminates. The function is typically used inside a switch block for command line options like `-h' or unknown options. In a lot of places, the break keyword is omitted, because the function exits anyway. However, this triggers gcc warnings about implicit fall-through. Rather than adding a phony "/* fall-through */" this patch flags the usage() style function with a gcc attribute, indicating that they do not return and removes further superfluous break statements. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2017-06-28Move libfec declarations to public header in global include directoryDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2017-06-28Use autoconf header detection correctly for libmissingDavid Oberhollenzer
AC_CHECK_HEADERS already makes sure our config header contains a HAVE_$FOO_H macro if a header was found. There is no need to awkwardly set our own Automake conditionals and check for it all over the place in the Automake files. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2017-03-29libiniparser: remove unused function needing floatAndrea Adami
Fixes: | LD ubi-utils/ubiformat | .../git/ubi-utils/libiniparser.a(libiniparser.o): In function | ` LD ubi-utils/ubirename | iniparser_getdouble': | .../git/ubi-utils/libiniparser.c:336: undefined reference to `atof' Grep doesn't reveal any occurrence of iniparser_getdouble(), using atof() so remove it: floating-point is not supported in klibc Upstream-Status: Pending Signed-off-by: Andrea Adami <andrea.adami@gmail.com> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2017-03-15Fix libmtd behaviour if MTD is not present on the systemDavid Oberhollenzer
The documentation of libmtd_open says, if it returns NULL and errno is zero, MTD is not present. However, the current version always returns a libmtd_t object. The function internally checks, if it can access the MTD sysfs files and, if not, sets a flag to use the procfs fallback. This patch adds an additional check to libmtd_open, to test if the MTD procfs file can be read and fails with errno cleared if it does not exist. Furhtermore, mtd_get_info is documented to fail with errno set to ENODEV if MTD is not present. First of all, this was broken in the original version. It was implemented to specification for the sysfs code path, but if MTD is not present, that won't be executed, because of the flag set by libmtd_open. This makes the check not only redundant, but masks an actual error (the sysfs paths suddenly not being readable anymore). The legacy path that was used if the sysfs files are not avaible fails with ENOENT if it cannot read the procfs file. With the above changes in addition, we don't have a libmtd_t object if neither sysfs nor procfs is readable, so this error status no longer makes sense. This patch removes the documentation on the ENODEV errno, and makes sure that mtd_get_info always returns with apropriate errno on failure. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2017-03-02Replace rpmatch() usage with checking first character of lineDavid Oberhollenzer
This is based on the patch from Khem Raj used by openembedded. In addition to the original patch, this also removes the fallback implementation that was provided for C libraries that don't implement rpmatch. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2017-02-20mtd-utils: Fix format specifier definitions for off_t and loff_t.Torsten Fleischer
On 32bit systems (e.g. ARM) the size of off_t can be 4 byte and the size of loff_t 8 byte. This causes compiler warnings like the following: flash_erase.c: In function 'show_progress': flash_erase.c:56:22: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 3 has type 'off_t {aka long int}' [-Wformat=] bareverbose(!quiet, "\rErasing %d Kibyte @ %"PRIxoff_t" -- %2i %% complete ", and an output like this: ~# flash_erase /dev/mtd2 0 1 Erasing 64 Kibyte @ 6400000000 -- 0 % complete ~# Since the size of off_t and loff_t can differ from each other, the printf format specifier should be determined separately for both. Further the format specifiers should be based directly on the size of the particular data type. Signed-off-by: Torsten Fleischer <torfl6749@gmail.com> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2016-12-09nandwrite: Factor out buffer checking codeMarek Vasut
Pull the buffer content checking code into separate function and simplify the code invoking it slightly. Signed-off-by: Marek Vasut <marex@denx.de> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2016-12-06common: Fix 'unchecked return code' warningsBoris Brezillon
Several tools are simply not checking return code of functions marked with 'warn_unused_result'. Provide wrappers for the read/write functions to avoid patching old code and providing proper error handling. Fix the remaining ones (calls to fgets() and system()). Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-12-06common: Fix PRI{x,d}off definitions for x86_64 platformBoris Brezillon
Compiling for x86_64 generates a lot of warning because the PRIxoff_t and PRIdoff_t are not properly defined, which comes from the missing SIZEOF_LONG definition. Use the autotools to generate a config.h header, include this header from common.h and ask autoheader to generate the SIZEOF_LONG and SIZEOF_LOFF_T definitions. Use these new definitions to assign the proper descriptors to PRIxoff_t and PRIdoff_t. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-11-17Move ubi-utils libraries to common library locationDavid Oberhollenzer
Historically, the mtd-utils and ubi-utils were seperate packages. The ubi-utils were at some point merged into the mtd-utils. They first appeared in the release tar-ball in version 1.1.0 in their own sub-hirarchy with their own buildsystem, readme, documentation, etc. A lot of the duplicated stuff got centralized/removed over time. This patch further cleans up the directory hirarchy duplication by moving common libraries from the ubi-utils/ into the central lib/ and include/ directories in the top directory of the mtd-utils package. This includes: - libuib.a & libubigen.a used by the ubi utilities - libscan.a currently only used by ubiformat - libiniparser.a used by ubinize Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2016-11-17Merge rest of ubiutils-common into libmtd commonDavid Oberhollenzer
This patch moves the remaining 3 functions from ubiutils-common.{c,h} into libmtd common.{c,h}. The functions are only generic utility functions that other mtd-utils programs may also find usefull and every program that uses libubi links against libmtd anyway so there is no real reason for keeping around a seperate ubiutils-common with only generic helper functions. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2016-11-17mtd-utils: Add multi-block erase functionDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at> Signed-off-by: Richard Weinberger <richard@nod.at>
2016-11-17Add libmissingDavid Oberhollenzer
This patch adds a libmissing library to mtd-utils, containing implementations of functionality found in glibc but typically missing from embedded C libraries such as uclibc ot musl. For now, the library only contains stub implementations of the backtrace*() family of functions. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at> Signed-off-by: Richard Weinberger <richard@nod.at>
2016-11-17Unify version string printingDavid Oberhollenzer
When a program does sophisticated enough command line processing (i.e. getopt), make sure it responds to -V and --version. When a program prints a version string, make sure it uses the common_print_version macro to print out its name, that it is part of mtd-utils and the mtd-utils version from the build system in a fashion similar to common program packages like the GNU coreutils. When a program responds to -V/--version or -h/--help, make sure it reports success exit status. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at> Signed-off-by: Richard Weinberger <richard@nod.at>
2016-11-17Change build system to autotoolsRichard Weinberger
This patch is largely based on Richards original RFC. The major differences to the RFC patch are: - Add missing sumtools & mtdpart targets - Fix name of mkfs.jffs2 target - Add missing subdir-objects option for non-recursive make - Move all automake options to configure.ac - Add manpages to install target - Make XATTR & LZO support configurable - Install binaries to sbin directory like in the old build system - Install flash_erase wrapper script - Add files missing from distribution target Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at> Signed-off-by: Richard Weinberger <richard@nod.at>
2016-11-17Remove unused and broken mtd_write_img function from libmtdDavid Oberhollenzer
The function _tries_ to support short reads but doesn't adjust the pointer into the buffer. If a short read happens, we scrambles the flash contents. Interrupted reads aren't handled. Short or interrupted writes aren't handled at all. Either a write succeeds writing the entire buffer or the function gives up. During an attempt at fixing it, it was discovered, that no mtd-utils program uses this function. Furthermore, its highly specific nature makes it more of a "feature looking for use case". Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at> Signed-off-by: Richard Weinberger <richard@nod.at>
2016-08-25mtd-utils: fix wrong format specifiers on mips32Mathias Kresin
This patch fixes the follwing compiler warnings: flash_erase.c: In function 'show_progress': flash_erase.c:56:22: warning: format '%lx' expects argument of type 'long unsigned int', but argument 3 has type 'off_t {aka long long int}' [-Wformat=] bareverbose(!quiet, "\rErasing %d Kibyte @ %"PRIxoff_t" -- %2i %% complete ", ^ ./include/common.h:81:10: note: in definition of macro 'bareverbose' printf(fmt, ##__VA_ARGS__); which are linked to the following buggy numerical output: Erasing 128 Kibyte @ 0 -- 917504 % complete flash_erase: Cleanmarker written at 0 Erasing 128 Kibyte @ 0 -- 1048576 % complete flash_erase: Cleanmarker written at 0 Signed-off-by: Mathias Kresin <dev@kresin.me> Signed-off-by: Richard Weinberger <richard@nod.at>
2016-04-18include sys/sysmacros.h for major/minor/makedevMike Frysinger
These functions have always been defined in sys/sysmacros.h under Linux C libraries. For some, including sys/types.h implicitly includes that as well, but glibc wants to deprecate that, and some others already have. Include the header explicitly for the funcs. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-07-06mtd-utils: fix 'new blank line at EOF' problemsDongsheng Yang
Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-05-28include/common.h: fix build against muslJörg Krause
Like uClibc version older than (not yet released) 0.9.34 musl does not have a rpmatch() implementation. uClibc defines both __UCLIBC__ and __GLIBC__. So first check for uCibc and its version and then for a non glibc implementation (like musl). Note, musl does not define __MUSL__. Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-10-30ubifs-media.h: include "byteorder.h"Artem Bityutskiy
... in order to have definitions of things like __le16. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2014-10-30Move mkfs.ubifs/ubifs-media.h to include/mtdArtem Bityutskiy
This file will be shared with the ubidump tool in the future. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2014-10-20mtd-utils: Add macros to include/common.hhujianyang
This patch adds four macros: ALIGN, __ALIGN_MASK, min_t and max_t to include/common.h. Signed-off-by: hujianyang <hujianyang@huawei.com>
2014-04-21include/common.h: fix build against recent 0.9.33 uClibcBaruch Siach
An implementation of rpmatch() was backported to the 0.9.33 branch of uClibc. So the uClibc version check introduced in commit 50c9e11f7e (include/common.h: fix build against current uClibc) is not enough. Rename the local rpmatch() implementation to avoid collision. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-04-15include/common.h: fix build against current uClibcBaruch Siach
Commit dbe0fd17f2 (mtd-utils: new prompt() helper for talking to the user) introduced a rpmatch() call. However, uClibc versions older than (not yet released) 0.9.34 don't have rpmatch() implementation. Add one. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Acked-by: Mike Frysinger <vapier@gentoo.org>
2014-03-25ubi-utils: Add ubiblock toolEzequiel Garcia
With the addition of block device access to UBI volumes, we now add a simple userspace tool to access the new ioctls. Usage of this tool is as simple as it gets: $ ubiblock --create /dev/ubi0_0 will create a new block device /dev/ubiblock0_0, and $ ubiblock --remove /dev/ubi0_0 will remove the device. Artem: slightly changed the header comment. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2013-10-22mtd: mtd-abi: add a helper to detect the nand typeHuang Shijie
The helper is for user applications, and it is just a copy of the kernel helper: mtd_type_is_nand(); Signed-off-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2013-07-01mtd-utils: new prompt() helper for talking to the userMike Frysinger
We've got a few tools that prompt the user for "yes/no" questions. Add a common helper to simplify the various implementations. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2013-07-01move _GNU_SOURCE to the main makefileMike Frysinger
A bunch of utils are relying on _GNU_SOURCE already. The new prompt code uses getline() which is now part of POSIX, but in older versions of glibc, it was behind _GNU_SOURCE as it was a GNU extension. This change doesn't actually tie us to glibc. Only code that uses GNU extensions does that. It just kills warning when using older versions of glibc. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-09-25introduce PRIxoff_t and PRIdoff_t printf helpersRichard Genoud
They will be usefull when printing offsets. Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-08-22ubi-user.h: add max_beb_per1024 parameterRichard Genoud
Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-08-22UBI: sync ubi-user.h with kernel v3.6-rc1Richard Genoud
Also remove the eraseblock type support, because kernel commit a65a0eb6d198e058687a9214683bd1c418f20d39 set the dtype parameter as obsolete. Also adjust to some renames: * 'UBI_PROP_DIRECT_WRITE' -> 'UBI_VOL_PROP_DIRECT_WRITE' * 'struct ubi_set_prop_req' -> 'struct ubi_set_vol_prop_req'. * 'UBI_IOCSETPROP' -> 'UBI_IOCSETVOLPROP' Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-02-02libmtd: add `mtd_dev_present()' library functionBrian Norris
Will be used for `mtdinfo --all' Artem: add a temporary stub for pre-2.6.30 kernels. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2011-09-11libmtd: modify `mtd_write' to cover OOB writesBrian Norris
To support the MEMWRITE ioctl, we will need a different sort of libmtd interface for writing to flash. We will expand mtd_write to include more functionality; for now, we just change the function definition and description as we begin to add the actual functionality. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
2011-09-11mtd-utils: update mtd-abi.hBrian Norris
Kernel ABI header added a new ioctl, killed an old one, and exposed OOB modes to user-space. Plus, it added a lot of documentation. We have some trivial name changes for some MTD mode constants as well. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
2011-06-29mtd-utils: add common version printing functionBrian Norris
Signed-off-by: Brian Norris <computersforpeace@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Artem Bityutskiy <dedekind1@gmail.com>
2011-06-29mtd-utils: remove whitespace at end of linesBrian Norris
Signed-off-by: Brian Norris <computersforpeace@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Artem Bityutskiy <dedekind1@gmail.com>
2011-06-27autogenerate version.h from build systemMike Frysinger
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-06-08libmtd: improve mtd_islocked interfaceArtem Bityutskiy
This patch first of all, re-names 'mtd_islocked()' into 'mtd_is_locked()' since this seems to be the name Mike wanted, and it looks a bit nicer. This patch also makes 'mtd_is_locked()' print an error message if it fails. I'm not sure if it is good idea for a library to do so, but all functions do this, so it certainly _not_ a good idea to be inconsistent. However, for the special case, when the the "is locked" ioctl is not supported or is not valid for this device, we do not print an error message and return ENOTSUPP error code. Thus, the user can distinguish between real errors and non-fatal "not supported" cases. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-06-08libmtd: add helper funcs for getting regioninfo and locked infoMike Frysinger
This extends the libmtd with the helper functions: mtd_regioninfo: interface to MEMGETREGIONINFO mtd_islocked: interface to MEMISLOCKED Users of these functions will follow shortly ... Artem: do not print error message in mtd_islocked() Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>