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| * UBI: fix signed-unsigned multiplicationBrijesh Singh2007-07-18
| | | | | | | | | | | | | | | | | | There is signed multiplication assigned to unsigned ei.addr in io.c. This causes wrong addresses for big multiplication.This patch solves the problem. Signed-off-by: Brijesh Singh <brijesh.s.singh@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * UBI: fix bug in atomic_leb_change()Artem Bityutskiy2007-07-18
| | | | | | | | | | | | | | atomic_leb_change() is only allowed for dynamic volumes, so set the volume type correctly. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * UBI: fix messageVinit Agnihotri2007-07-18
| | | | | | | | | | | | | | Increase UBI devices couter after the message, not before. Signed-off-by: Vinit Agnihotri <vinit.agnihotri@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * UBI: fix debugging stuffArtem Bityutskiy2007-07-18
| | | | | | | | | | | | | | Do not check volumes which are currently in use because thay may be in inconsistent state. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * UBI: bugfix in error pathArtem Bityutskiy2007-07-18
| | | | | | | | | | | | | | | | | | When volume creation fails, we have to set ubi->volumes[vol_id] back to NULL. This patch also tweaks some debugging stuff. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * UBI: use is_power_of_2()Vignesh Babu2007-07-18
| | | | | | | | | | | | | | | | Replacing (n & (n-1)) in the context of power of 2 checks with is_power_of_2 Signed-off-by: Vignesh Babu <vignesh.babu@wipro.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * UBI: fix freeing ubi->vtbl while unloadingVinit Agnihotri2007-07-18
| | | | | | | | | | | | | | | | ubi->vtbl is allocated using vmalloc() in vtbl.c empty_create_lvol(), but it is freed in build.c with kfree() Signed-off-by: Vinit Agnihotri <vinit.agnihotri@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * UBI: bugfix in ubi_leb_change()Artem Bityutskiy2007-07-18
| | | | | | | | | | | | | | Do not call 'ubi_wl_put_peb()' if the LEB was unmapped. Reported-by: Gabor Loki <loki@inf.u-szeged.hu> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * UBI: kill homegrown endian macrosChristoph Hellwig2007-07-18
| | | | | | | | | | | | | | | | Kill UBI's homegrown endianess handling and replace it with the standard kernel endianess handling. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * UBI: cleanup ioctl handlingChristoph Hellwig2007-07-18
| | | | | | | | | | | | | | | | - don't do access_ok + get/put user but use the proper macro - remove useless checks Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * UBI: error path bugfixArtem Bityutskiy2007-07-18
| | | | | | | | | | | | No need to unlock the lock, this will be done at out_unlock. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * UBI: minor comma fixArtem Bityutskiy2007-07-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use coma at the the last elements of structure initializer. Daniel Stone's explanation: Because it turns: - .attr = foo + .attr = foo, + .bar = baz into: + .bar = baz, i.e., far less likely to screw up a merge. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * UBI: use vmalloc for large buffersArtem Bityutskiy2007-07-18
| | | | | | | | | | | | | | UBI allocates temporary buffers of PEB size, which may be 256KiB. Use vmalloc instead of kmalloc for such big temporary buffers. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * UBI: add few more commentsArtem Bityutskiy2007-07-18
| | | | | | | | | | | | | | Add few comments above ubi_scan_add_used() to explain why it is so complex. Requested by Satyam Sharma <satyam.sharma@gmail.com>. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * UBI: set correct gluebi device sizeArtem Bityutskiy2007-07-18
| | | | | | | | | | | | | | | | In case of static volumes, make emulated MTD device size to be equivalent to data size, rather then volume size. Reported-by: John Smith <john@arrows.demon.co.uk> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * UBI: do not let to read too muchArtem Bityutskiy2007-07-18
| | | | | | | | | | | | | | In case of static volumes it is prohibited to read more data then available. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * UBI: fix error path in create_vtbl()Artem Bityutskiy2007-07-18
| | | | | | | | | | | | | | | | | | | | | | There were several bugs in volume table creation error path. Thanks to Satyam Sharma <satyam.sharma@gmail.com> and Florin Malita <fmalita@gmail.com> for finding and analysing them: http://lkml.org/lkml/2007/5/3/274 This patch makes ubi_scan_add_to_list() static and renames it to add_to_list(), just because it is not needed outside scan.c anymore. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * UBI: fix dereference after kfreeFlorin Malita2007-07-18
| | | | | | | | | | | | | | | | Coverity (CID 1614) spotted new_seb being dereferenced after kfree() in create_vtbl's write_error path. Signed-off-by: Florin Malita <fmalita@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * UBI: fix memory leak in checking codeArtem Bityutskiy2007-07-18
| | | | | | | | | | Reported-by: Eric Sesterhenn / Snakebyte <snakebyte@gmx.de> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * drivers/*: mark variables with uninitialized_var()Jeff Garzik2007-07-17
| | | | | | | | | | | | | | | | Mark variables in drivers/* with uninitialized_var() if such a warning appears, and analysis proves that the var is initialized properly on all paths it is used. Signed-off-by: Jeff Garzik <jeff@garzik.org>
| * drivers/mtd/ubi/eba: minor cleanup: tighten scope of a local varJeff Garzik2007-07-17
| | | | | | | | Signed-off-by: Jeff Garzik <jeff@garzik.org>
| * Freezer: make kernel threads nonfreezable by defaultRafael J. Wysocki2007-07-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, the freezer treats all tasks as freezable, except for the kernel threads that explicitly set the PF_NOFREEZE flag for themselves. This approach is problematic, since it requires every kernel thread to either set PF_NOFREEZE explicitly, or call try_to_freeze(), even if it doesn't care for the freezing of tasks at all. It seems better to only require the kernel threads that want to or need to be frozen to use some freezer-related code and to remove any freezer-related code from the other (nonfreezable) kernel threads, which is done in this patch. The patch causes all kernel threads to be nonfreezable by default (ie. to have PF_NOFREEZE set by default) and introduces the set_freezable() function that should be called by the freezable kernel threads in order to unset PF_NOFREEZE. It also makes all of the currently freezable kernel threads call set_freezable(), so it shouldn't cause any (intentional) change of behaviour to appear. Additionally, it updates documentation to describe the freezing of tasks more accurately. [akpm@linux-foundation.org: build fixes] Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Nigel Cunningham <nigel@nigel.suspend2.net> Cc: Pavel Machek <pavel@ucw.cz> Cc: Oleg Nesterov <oleg@tv-sign.ru> Cc: Gautham R Shenoy <ego@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | [MTD] Add sync/unblank function to mtdoopsRichard Purdie2007-07-11
| | | | | | | | | | | | | | | | | | | | | | | | | | mtdoops wasn't ensuring data was flushed to flash in crash situations after recent changes in mainline kernels as tracking the oops_in_progress variable was no longer enough. We can use the "unblank" console call as a sync call to tell us to write out the buffer though. Therefore add a sync function to mtdoops and call this when console unblank events occur. Signed-off-by: Richard Purdie <rpurdie@openedhand.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] Remove Ocelot G support from DiskOnChip drivers.Yoichi Yuasa2007-07-11
| | | | | | | | | | | | | | | | This patch has removed Ocelot G support from MTD. Ocelot G support has already removed since May 2007. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | Merge branch 'master' of ↵David Woodhouse2007-07-11
|\| | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
| * [MIPS] remove LASAT Networks platforms supportYoichi Yuasa2007-07-10
| | | | | | | | | | Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Remove Momenco Ocelot C supportFranck Bui-Huu2007-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> delete mode 100644 arch/mips/configs/ocelot_c_defconfig delete mode 100644 arch/mips/momentum/ocelot_c/Makefile delete mode 100644 arch/mips/momentum/ocelot_c/cpci-irq.c delete mode 100644 arch/mips/momentum/ocelot_c/dbg_io.c delete mode 100644 arch/mips/momentum/ocelot_c/irq.c delete mode 100644 arch/mips/momentum/ocelot_c/ocelot_c_fpga.h delete mode 100644 arch/mips/momentum/ocelot_c/platform.c delete mode 100644 arch/mips/momentum/ocelot_c/prom.c delete mode 100644 arch/mips/momentum/ocelot_c/reset.c delete mode 100644 arch/mips/momentum/ocelot_c/setup.c delete mode 100644 arch/mips/momentum/ocelot_c/uart-irq.c delete mode 100644 arch/mips/pci/fixup-ocelot-c.c delete mode 100644 arch/mips/pci/pci-ocelot-c.c
* | [MTD] [ONENAND] Make onenand_sim compile on non-ARM platforms.David Woodhouse2007-07-10
| | | | | | | | | | | | | | | | The whole point of a sim is that it should run almost anywhere. Gratuitously depending on '#define SZ_128K 131072' from an ARM-specific header isn't really a good idea. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] [NOR] add FUJITSU MBM29F800BA and ST M29F800AB descriptionsPhilippe De Muyter2007-07-05
| | | | | | | | | | | | | | | | Add descriptions for Fujitsu MBM29F800BA and ST M29F800AB flash chips. Those chips are compatible (except for the ids) with the AMD AM29F800BB. Signed-off-by: Philippe De Muyter <phdm@macqel.be> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] [CHIPS] fix tiny spelling error in comment in cfi_cmdset_0001.cJesper Juhl2007-07-04
| | | | | | | | | | | | | | | | Trivial fix of a spelling error in a comment in cfi_cmdset_0001.c s/ships/chips/ Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] OneNAND Simulator supportKyungmin Park2007-06-30
| | | | | | | | | | | | | | | | | | | | | | | | This simulate various OneNAND flash chips for the MTD onenand layer. It's simple implementation, only basic operations. It don't support the recent changes in NANDSIM such as lazy block allocation, bitflip, and so on. Note: This passed nand-tests. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] [OneNAND] 2X program supportKyungmin Park2007-06-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The 2X Program is an extension of Program Operation. Since the device is equipped with two DataRAMs, and two-plane NAND Flash memory array, these two component enables simultaneous program of 4KiB. Plane1 has only even blocks such as block0, block2, block4 while Plane2 has only odd blocks such as block1, block3, block5. So MTD regards it as 4KiB page size and 256KiB block size Now the following chips support it. (KFXXX16Q2M) Demux: KFG2G16Q2M, KFH4G16Q2M, KFW8G16Q2M, Mux: KFM2G16Q2M, KFN4G16Q2M, And more recent chips Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] remove dead MTD_PMC551_APERTURE_SIZE optionAdrian Bunk2007-06-29
| | | | | | | | | | | | | | | | The CONFIG_MTD_PMC551_APERTURE_SIZE option seems to never have existed, so there's no reason for carrying an #ifdef for it. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] Use proper binary multiple prefixes in pmc551 driverDavid Woodhouse2007-06-29
| | | | | | | | Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] [NAND] cafe_nand.c: the OLPC laptop is not available for $100Adrian Bunk2007-06-29
| | | | | | | | | | | | | | | | | | | | | | The price might drop to $100 in a few years. But currently, a more reasonable name might be "$175 laptop". Let's simply call it "OLPC laptop" without any price tag. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] [MAPS] Cleanup nettel map driverAdrian Bunk2007-06-28
| | | | | | | | | | | | | | | | | | | | - make 2 needlessly global functions static - remove the unused nettel_eraseconfig() Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Greg Ungerer <gerg@snapgear.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] [NOR] Use NULL instead of 0 for pointer to shut sparse up.Randy Dunlap2007-06-28
| | | | | | | | | | | | | | | | | | | | | | Use NULL instead of 0 for pointer: drivers/mtd/chips/cfi_cmdset_0001.c:2258:43: warning: Using plain integer as NULL pointer Other changes by inspection. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] Use mutex instead of semaphore in dataflash driverMatthias Kaehlcke2007-06-28
| | | | | | | | | | | | | | | | | | The MTD DataFlash driver uses a semaphore as mutex. Use the mutex API instead of the (binary) semaphore. Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] m25p80: Use correct units for binary multiplesDavid Woodhouse2007-06-28
| | | | | | | | Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] m25p80 handles more chips, uses JEDEC ids and small eraseblocksDavid Brownell2007-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update chip ID tables in m25p80 to handle more SPI flash chips, matching datasheets. All of these can use the same core operations and are newer chips that support the JEDEC "read id" instruction: - Atmel AT25 and AT26 (seven chips) - Spansion S25SL (five chips) - SST 25VF (four chips) - ST M25, M45 (five more chips) - Winbond W25X series (seven chips) That JEDEC instruction is now used, either to support a sanity check on the platform data holding board configuration data, or to determine chip type when it's not included in platform data. In fact, boards that don't need a standard partition table may not need that platform data any more. For chips that support 4KiB erase units, use that smaller block size instead of the larger size (usually 64KiB); it's less wasteful. (Tested on W25X80.) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] m25p80 converted to mutexDavid Brownell2007-06-28
| | | | | | | | | | | | | | | | Convert semaphore usage in m25p80 driver to mutex; mention another kind of SPI flash chip that should be able to use this driver (given minor tweaks). Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] [NAND] Change NDFC driver to support 405 platforms tooStefan Roese2007-06-28
| | | | | | | | | | | | | | | | | | This patch adds 405 platform support to the 440 NDFC driver. The new AMCC 405EZ PPC is equipped with the same NDFC core as the 440EP(x) and other will follow soon. Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] mtdcore.c: share syms with mtd_blkdev.cBen Dooks2007-06-28
| | | | | | | | | | | | | | | | | | | | | | | | Fix the sparse warnings generated by the implicit dependency of mtd_blkdevs.c and mtd_core.c for the two symbols mtd_table and mtd_table_mutex. This is done by adding an local header file mtdcore.h to define these (including the warning about the non-proliferation of these symbols). Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] [NOR] cfi_cmdset_0001.c: sparse fixesBen Dooks2007-06-28
| | | | | | | | | | | | | | | | | | | | Fix sparse warnings generated from cfi_cmdset_0001.c. drivers/mtd/chips/cfi_cmdset_0001.c:1783:5: warning: symbol 'cfi_intelext_erase_varsize' was not declared. Should it be static? drivers/mtd/chips/cfi_cmdset_0001.c:2258:43: warning: Using plain integer as NULL pointer Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] [NOR] cfi_cmdset_0002.c: fix 'cfi_amdstd_erase_varsize' to be staticBen Dooks2007-06-28
| | | | | | | | | | | | | | | | | | | | | | Make cfi_amdstd_erase_varsize static, as declared at the top of the file to ensure sparse does not print a warning for an undeclared function, as so: drivers/mtd/chips/cfi_cmdset_0002.c:1612:5: warning: symbol 'cfi_amdstd_erase_varsize' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] mtd_blkdevs.c: do not export 'mtd_blktrans_ops'Ben Dooks2007-06-28
| | | | | | | | | | | | | | | | | | | | | | The mtd_blktrans_ops is not defined in any of the headers and is indeed not used elsewhere in the kernel, so mark it as static to reduce the warnings from sparse drivers/mtd/mtd_blkdevs.c:204:32: warning: symbol 'mtd_blktrans_ops' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] [NAND] nand_base.c: fix type of eccpos pointerBen Dooks2007-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | The nand_base.c driver implicitly casts the uint32_t eccpos array to 'int *', which is not only not guaranteed to be the same sign as the source, but is not guaranteed to be the same size. Fix by changing nand_base.c to use uint32_t referencing the eccpos fields. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] oops and panic message logging to MTD deviceRichard Purdie2007-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Kernel oops and panic messages are invaluable when debugging crashes. These messages often don't make it to flash based logging methods (say a syslog on jffs2) due to the overheads involved in writing to flash. This patch allows you to turn an MTD partition into a circular log buffer where kernel oops and panic messages are written to. The messages are obtained by registering a console driver and checking oops_in_progress. Erases are performed in advance to maximise the chances of a saving messages. To activate it, add console=ttyMTDx to the kernel commandline (where x is the mtd device number to use). Signed-off-by: Richard Purdie <rpurdie@openedhand.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] [NAND] at91_nand rdy_pin fixIvan Kuten2007-06-28
| | | | | | | | | | | | | | | | | | The patch below fixes nand driver for AT91 boards which do not have NAND R/B signal connected to gpio (rdy_pin is not connected). Signed-off-by: Ivan Kuten <ivan.kuten@promwad.com> Acked-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [MTD] Remove references to ROOT_DEV from map drivers.David Woodhouse2007-06-28
| | | | | | | | Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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