Frans Klaver [Wed, 10 Jun 2015 20:38:30 +0000 (22:38 +0200)]
mtd: maps: physmap: drop owner assignment
Owner is automatically set by mtdcore. Make use of that.
Signed-off-by: Frans Klaver <fransklaver@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Frans Klaver [Wed, 10 Jun 2015 20:38:29 +0000 (22:38 +0200)]
mtd: maps: latch-addr-flash: show parent device in sysfs
Fix a bug where mtd parent device symlinks aren't shown in sysfs.
While at it, make use of the default owner value set by mtdcore.
Signed-off-by: Frans Klaver <fransklaver@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Frans Klaver [Wed, 10 Jun 2015 20:38:28 +0000 (22:38 +0200)]
mtd: maps: lantiq-flash: show parent device in sysfs
Fix a bug where mtd parent device symlinks aren't shown in sysfs.
While at it, make use of the default owner value set by mtdcore.
Signed-off-by: Frans Klaver <fransklaver@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Frans Klaver [Wed, 10 Jun 2015 20:38:27 +0000 (22:38 +0200)]
mtd: maps: ixp4xx: show parent device in sysfs
Fix a bug where mtd parent device symlinks aren't shown in sysfs.
While at it, make use of the default owner value set by mtdcore.
Signed-off-by: Frans Klaver <fransklaver@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Frans Klaver [Wed, 10 Jun 2015 20:38:26 +0000 (22:38 +0200)]
mtd: maps: intel_vr_nor: show parent device in sysfs
Fix a bug where mtd parent device symlinks aren't shown in sysfs.
While at it, make use of the default owner value set by mtdcore.
Signed-off-by: Frans Klaver <fransklaver@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Frans Klaver [Wed, 10 Jun 2015 20:38:25 +0000 (22:38 +0200)]
mtd: maps: gpio-addr-flash: show parent device in sysfs
Fix a bug where mtd parent device symlinks aren't shown in sysfs.
Signed-off-by: Frans Klaver <fransklaver@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Frans Klaver [Wed, 10 Jun 2015 20:38:23 +0000 (22:38 +0200)]
mtd: lpddr: show parent device in sysfs
Fix a bug where mtd parent device symlinks aren't shown in sysfs.
Signed-off-by: Frans Klaver <fransklaver@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Frans Klaver [Wed, 10 Jun 2015 20:38:22 +0000 (22:38 +0200)]
mtd: devices: sst251: show parent device in sysfs
Fix a bug where mtd parent device symlinks aren't shown in sysfs.
While at it, make use of the default owner value set by mtdcore.
Signed-off-by: Frans Klaver <fransklaver@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Frans Klaver [Wed, 10 Jun 2015 20:38:21 +0000 (22:38 +0200)]
mtd: devices: spear_smi: show parent device in sysfs
Fix a bug where mtd parent device symlinks aren't shown in sysfs.
Signed-off-by: Frans Klaver <fransklaver@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Frans Klaver [Wed, 10 Jun 2015 20:38:20 +0000 (22:38 +0200)]
mtd: devices: mtd_dataflash: drop owner assignment
Owner is automatically set by mtdcore. Make use of that.
Signed-off-by: Frans Klaver <fransklaver@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Frans Klaver [Wed, 10 Jun 2015 20:38:18 +0000 (22:38 +0200)]
mtd: devices: docg3: show parent device in sysfs
Fix a bug where mtd parent device symlinks aren't shown in sysfs.
While at it, make use of the default owner value set by mtdcore.
Signed-off-by: Frans Klaver <fransklaver@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Frans Klaver [Wed, 10 Jun 2015 20:38:17 +0000 (22:38 +0200)]
mtd: devices: bcm47xxflash: show parent device in sysfs
Fix a bug where mtd parent device symlinks aren't shown in sysfs.
While at it, make use of the default owner value set by mtdcore.
Signed-off-by: Frans Klaver <fransklaver@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Frans Klaver [Wed, 10 Jun 2015 20:38:16 +0000 (22:38 +0200)]
mtd: core: set some defaults when dev.parent is set
If a parent device is set, add_mtd_device() has enough knowledge to fill
in some sane default values for the module name and owner. Do so if they
aren't already set.
Signed-off-by: Frans Klaver <fransklaver@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Frans Klaver [Wed, 10 Jun 2015 20:38:15 +0000 (22:38 +0200)]
mtd: core: tone down suggestion that dev.parent should be set
add_mtd_device() has a comment suggesting that the caller should have
set dev.parent. This is required to have the parent device symlink show
up in sysfs, but not for proper operation of the mtd device itself.
Currently we have five drivers registering mtd devices during module
initialization, so they don't actually provide a parent device to link
to. That means we cannot WARN_ON() here, as it would trigger false
positives.
Make the comment a bit less firm in its assertion that dev.parent should
be set.
Signed-off-by: Frans Klaver <fransklaver@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Aurelien Chanot [Wed, 7 Oct 2015 19:10:08 +0000 (12:10 -0700)]
mtd: spi-nor: Add support for Micron n25q032a
The N25Q032A is identical to the N25Q032 except it has a different
supply voltage range. Therefore, it has a new JEDEC ID.
Signed-off-by: Aurelien Chanot <chanot.a@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Anup Patel [Fri, 2 Oct 2015 17:56:43 +0000 (23:26 +0530)]
mtd: nand: Allow MTD_NAND_BRCMNAND to be selected for ARM64
The BRCM NAND driver can be re-used for Broadcom ARM64 SoCs hence
this patch updates Kconfig to allow selection of MTD_NAND_BRCMNAND
for ARM64.
Signed-off-by: Anup Patel <anup.patel@broadcom.com>
Reviewed-by: Vikram Prakash <vikramp@broadcom.com>
Reviewed-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Pramod KUMAR <pramodku@broadcom.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Anup Patel [Fri, 2 Oct 2015 17:56:42 +0000 (23:26 +0530)]
mtd: brcmnand: Fix pointer type-cast in brcmnand_write()
We should always type-cast pointer to "long" or "unsigned long"
because size of pointer is same as machine word size. This will
avoid pointer type-cast issues on both 32bit and 64bit systems.
This patch fixes pointer type-cast issue in brcmnand_write()
as-per above info.
Signed-off-by: Anup Patel <anup.patel@broadcom.com>
Reviewed-by: Vikram Prakash <vikramp@broadcom.com>
Reviewed-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Dan Williams [Fri, 9 Oct 2015 22:16:51 +0000 (18:16 -0400)]
mtd: pxa2xx-flash: switch from ioremap_cache to memremap
In preparation for deprecating ioremap_cache() convert its usage in
pxa2xx-flash to memremap.
Cc: David Woodhouse <dwmw2@infradead.org>
[brian: also convert iounmap to memunmap]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Sheng Yong [Fri, 31 Jul 2015 01:12:44 +0000 (01:12 +0000)]
mtd: nand_bbt: set the smallest size of bbt table
When using nandsim to simulate a 128K block nand with `overridesize = 1',
the size of mtd device is too small (mtd_size = 4 * block_size) to get the
right length of bbt. Then when creating bbt, kzmalloc() will return
ZERO_SIZE_PTR. This causes a NULL pointer oops when scanning bbt.
[ 952.156166] BUG: unable to handle kernel NULL pointer dereference at
0000000000000010
[ 952.157064] IP: [<
ffffffff8148ad4a>] nand_isreserved_bbt+0x2a/0x40
[ 952.157064] PGD 0
[ 952.157064] Oops: 0000 [#1] SMP
[ 952.157064] Modules linked in: nandsim(+) [last unloaded: nandsim]
[ 952.157064] CPU: 1 PID: 7103 Comm: modprobe Not tainted 4.2.0-rc3-next-
20150724 #4
[ 952.157064] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
[ 952.157064] task:
ffff88003e24b980 ti:
ffff88003d274000 task.ti:
ffff88003d274000
[ 952.157064] RIP: 0010:[<
ffffffff8148ad4a>] [<
ffffffff8148ad4a>] nand_isreserved_bbt+0x2a/0x40
[ 952.157064] RSP: 0018:
ffff88003d277b90 EFLAGS:
00010246
[ 952.157064] RAX:
0000000000000010 RBX:
ffff88003d5a1000 RCX:
0000000000000000
[ 952.157064] RDX:
0000000000000000 RSI:
0000000000000000 RDI:
ffff88003d919000
[ 952.157064] RBP:
ffff88003d277b98 R08:
0000000000020000 R09:
0000000000000000
[ 952.157064] R10:
0000000000000000 R11:
0000000000000195 R12:
ffff88003d919000
[ 952.157064] R13:
0000000000000000 R14:
0000000000000000 R15:
0000000000000000
[ 952.157064] FS:
00007fada4d07700(0000) GS:
ffff88003fd00000(0000) knlGS:
0000000000000000
[ 952.157064] CS: 0010 DS: 0000 ES: 0000 CR0:
000000008005003b
[ 952.157064] CR2:
0000000000000010 CR3:
0000000037924000 CR4:
00000000000006a0
[ 952.157064] Stack:
[ 952.157064]
ffffffff814851ec ffff88003d277ba8 ffffffff8147e35f ffff88003d277bf8
[ 952.157064]
ffffffff814816f3 ffff88003d277c08 ffff88003d277bc8 0000000000000282
[ 952.157064]
0000000000000001 0000000000000000 ffff88003d209540 0000000000000001
[ 952.157064] Call Trace:
[ 952.157064] [<
ffffffff814851ec>] ? nand_block_isreserved+0x1c/0x20
[ 952.157064] [<
ffffffff8147e35f>] mtd_block_isreserved+0x1f/0x30
[ 952.157064] [<
ffffffff814816f3>] allocate_partition+0x463/0x6a0
[ 952.157064] [<
ffffffff81481b3b>] add_mtd_partitions+0x4b/0xe0
[ 952.157064] [<
ffffffff8147f14c>] mtd_device_parse_register+0x4c/0xe0
[ 952.157064] [<
ffffffffa0013daf>] ns_init_module+0xdaf/0xde4 [nandsim]
[ 952.157064] [<
ffffffff8128d7c8>] ? kasprintf+0x38/0x40
[ 952.157064] [<
ffffffffa0013000>] ? 0xffffffffa0013000
[ 952.157064] [<
ffffffff810002c3>] do_one_initcall+0x83/0x1b0
[ 952.157064] [<
ffffffff8113afab>] ? kmem_cache_alloc_trace+0x6b/0x120
[ 952.157064] [<
ffffffff8160b503>] do_init_module+0x5c/0x1dd
[ 952.157064] [<
ffffffff810aa4db>] load_module+0x1bbb/0x20b0
[ 952.157064] [<
ffffffff810a6fc0>] ? __symbol_put+0x30/0x30
[ 952.157064] [<
ffffffff810aaac9>] SyS_init_module+0xf9/0x110
[ 952.157064] [<
ffffffff810aa9d1>] ? SyS_init_module+0x1/0x110
[ 952.157064] [<
ffffffff81615f57>] entry_SYSCALL_64_fastpath+0x12/0x6a
[ 952.157064] Code: 00 55 48 8b 87 80 01 00 00 48 89 e5 8b 88 cc 00 00 00 48 8b 80 f0 03 00 00 5d 48 d3 fe 89 f2 83 e6 03 c1 fa 02 8d 0c 36 48 63 d2 <0f> b6 04 10 d3 f8 83 e0 03 3c 02 0f 94 c0 0f b6 c0 c3 0f 1f 40
[ 952.157064] RIP [<
ffffffff8148ad4a>] nand_isreserved_bbt+0x2a/0x40
[ 952.157064] RSP <
ffff88003d277b90>
[ 952.157064] CR2:
0000000000000010
[ 952.204010] ---[ end trace
6ca2e1c041fdba36 ]---
This patch gives a smallest length to bbt, 1 byte, which is enough to
represent up to 4 blocks.
Signed-off-by: Sheng Yong <shengyong1@huawei.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Michal Suchanek [Tue, 18 Aug 2015 15:34:07 +0000 (15:34 +0000)]
mtd: mtdpart: add debug prints to partition parser.
The probe of a mtd device can fail when a partition parser returns
error. The failure due to partition parsing can be quite mysterious when
multiple partitioning schemes are compiled in and any of them can fail
the probe.
Add debug prints which show what parsers were tried and what they
returned.
Signed-off-by: Michal Suchanek <hramrach@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Wei Fang [Tue, 29 Sep 2015 03:23:55 +0000 (11:23 +0800)]
jffs2: fix a memleak in read_direntry()
Need to free the memory allocated for 'fd' if failed to read all
of the remainder name.
Signed-off-by: Wei Fang <fangwei1@huawei.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Vladimir Zapolskiy [Wed, 30 Sep 2015 23:23:37 +0000 (02:23 +0300)]
mtd: nand: lpc32xx_slc: fix calculation of timing arcs from given values
According to LPC32xx User's Manual all values measured in clock cycles
are programmable from 1 to 16 clocks (4 bits) starting from 0 in
bitfield, the current version of calculated clock cycles is too
conservative.
Correctness of 0 bitfield value (i.e. programmed 1 clock
timing) is proven with actual NAND chip devices.
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Vladimir Zapolskiy [Wed, 30 Sep 2015 23:23:36 +0000 (02:23 +0300)]
mtd: nand: lpc32xx_slc: fix potential overflow over 4 bits
In case if quotient of controller clock rate to device clock rate does
not fit into 4 bit value, choose the maximum acceptable value 0xF, which
stands for 16 clocks.
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Vladimir Zapolskiy [Wed, 30 Sep 2015 23:23:35 +0000 (02:23 +0300)]
mtd: nand: lpc32xx_slc: improve SLCTAC_*() macro definitions
No functional change, move bitfield calculations to macro
definitions with added clock rate argument, which are in turn defined
by new common SLCTAC_CLOCKS(c, n, s) macro definition.
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Boris BREZILLON [Wed, 30 Sep 2015 21:45:29 +0000 (23:45 +0200)]
mtd: nand: sunxi: fix bitflips in erased pages
Use the nand_check_erased_ecc_chunk() function to test if the ECC error
was triggered by an erased page containing a few bitflips.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Boris BREZILLON [Wed, 30 Sep 2015 21:45:28 +0000 (23:45 +0200)]
mtd: nand: sunxi: replace the NFC_BUF_TO_USER_DATA() macro by an inline function
sunxi_nfc_user_data_to_buf() is exposed as an inline function, replace the
NFC_BUF_TO_USER_DATA() macro by an inline function to be consistent.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Boris BREZILLON [Wed, 30 Sep 2015 21:45:27 +0000 (23:45 +0200)]
mtd: nand: sunxi: retrieve corrected OOB bytes
The ECC engine is protecting a few OOB bytes. Retrieve them from the
USER_DATA register instead of reading them in raw mode (ie without the ECC
protection).
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Boris BREZILLON [Wed, 30 Sep 2015 21:45:26 +0000 (23:45 +0200)]
mtd: nand: sunxi: factorize extra OOB bytes handling
Add helper functions to factorize the code dealing extra OOB bytes in the
normal and syndrome ECC implementations.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Boris BREZILLON [Wed, 30 Sep 2015 21:45:25 +0000 (23:45 +0200)]
mtd: nand: sunxi: make use of sunxi_nfc_hw_ecc_read/write_chunk()
The sunxi_nfc_hw_ecc_read/write_chunk() functions have been created to
factorize the code in the normal and syndrome ECC implementation.
Make use of them where appropriate.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Boris BREZILLON [Wed, 30 Sep 2015 21:45:24 +0000 (23:45 +0200)]
mtd: nand: sunxi: introduce sunxi_nfc_hw_ecc_read/write_chunk()
The logic behind normal and syndrome ECC handling is pretty much the same,
the only difference is the ECC bytes placement.
Create two functions to read/write ECC chunks. Those functions will later
be used by the sunxi_nfc_hw_ecc_read/write_page() and
sunxi_nfc_hw_syndrome_ecc_read/write_page() functions.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Boris BREZILLON [Wed, 30 Sep 2015 21:45:23 +0000 (23:45 +0200)]
mtd: nand: sunxi: create sunxi_nfc_hw_ecc_enable()/disable() functions
The code used to enable/disable the hardware ECC engine is repeated in a
lot of places. Create two functions to avoid code duplication.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Stefan Roese [Fri, 2 Oct 2015 10:40:21 +0000 (12:40 +0200)]
mtd: nand: fsmc: Remove BUG macros
Remove the BUG macros and return with error (if possible) instead.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Stefan Roese [Fri, 2 Oct 2015 10:40:20 +0000 (12:40 +0200)]
mtd: nand: fsmc: Small whitespace cleanup
Remove tab in empty line.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Boris BREZILLON [Thu, 1 Oct 2015 14:58:27 +0000 (16:58 +0200)]
mtd: nand: remove unused ->init_size() hook
The ->init_size() hook was introduced to let NAND controller drivers
support NAND devices that could not be described in the nand_ids table.
Since then, the core has added support for extended-id parsing and
full-id description, thus allowing to describe pretty much all existing
NANDs.
Moreover, this hook is not used by any mainline driver, and should not be
used by new drivers, because detecting the NAND chip is not something
controller specific.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Brian Norris [Mon, 18 May 2015 23:24:30 +0000 (16:24 -0700)]
sh: mach-rsk: remove unnecessary MTD partition probe specification
The cmdlinepart parser is already supported in the default probe.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Brian Norris [Thu, 21 May 2015 00:05:06 +0000 (17:05 -0700)]
mtd: brcmnand: remove unnecessary fields from brcmnand_soc
These really aren't needed, especially now that we embed the soc struct
in our private struct, so we can stash things there if needed.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Brian Norris [Thu, 21 May 2015 00:05:05 +0000 (17:05 -0700)]
mtd: brcmnand: refactor iProc SoC layering
Removes an unnecessary allocation and saves a little bit of pointer
chasing.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Brian Norris [Thu, 21 May 2015 00:05:04 +0000 (17:05 -0700)]
mtd: brcmnand: refactor bcm63138 SoC layering
Removes an unnecessary allocation and saves a little bit of pointer
chasing.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Boris BREZILLON [Wed, 16 Sep 2015 07:46:36 +0000 (09:46 +0200)]
mtd: nand: sunxi: rework macros
Suffix mask macros with _MSK and add new helper macros to avoid manually
shifting values.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Brian Norris [Wed, 30 Sep 2015 18:12:14 +0000 (11:12 -0700)]
Merge MTD 4.3-rc updates into -next
Brian Norris [Wed, 30 Sep 2015 16:54:26 +0000 (09:54 -0700)]
mtd: nand: vf610_nfc: include missing pincrl/consumer.h
This must have been implicitly included on the builds I tested. Reported
by numerous test bots:
drivers/mtd/nand/vf610_nfc.c: In function 'vf610_nfc_resume':
drivers/mtd/nand/vf610_nfc.c:660:2: error: implicit declaration of function 'pinctrl_pm_select_default_state' [-Werror=implicit-function-declaration]
pinctrl_pm_select_default_state(dev);
^
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Stefan Agner <stefan@agner.ch>
Boris BREZILLON [Thu, 30 Jul 2015 10:18:03 +0000 (12:18 +0200)]
mtd: mtdpart: fix add_mtd_partitions error path
If we fail to allocate a partition structure in the middle of the partition
creation process, the already allocated partitions are never removed, which
means they are still present in the partition list and their resources are
never freed.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: stable@vger.kernel.org
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Brian Norris [Wed, 30 Sep 2015 00:28:44 +0000 (17:28 -0700)]
Revert "mtd: mtdram: check offs and len in mtdram->erase"
This reverts commit
7827e3acad2df1c6537e5fe7211d216dabc60399.
There are some 64-bit arithmetic issues on some architectures, so let's
wait until we get a better patch for this.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Dongsheng Yang [Tue, 21 Jul 2015 08:30:20 +0000 (16:30 +0800)]
mtd: mtdram: check offs and len in mtdram->erase
We should prevent user to erasing mtd device with
an unaligned offset or length.
Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Stefan Agner [Thu, 3 Sep 2015 01:06:35 +0000 (18:06 -0700)]
mtd: nand: vf610_nfc: add device tree bindings
Signed-off-by: Bill Pringlemeir <bpringlemeir@nbsps.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Stefan Agner <stefan@agner.ch>
[Brian: fixup #size-cells in example]
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Stefan Agner [Thu, 3 Sep 2015 01:06:34 +0000 (18:06 -0700)]
mtd: nand: vf610_nfc: add hardware BCH-ECC support
This adds hardware ECC support using the BCH encoder in the NFC IP.
The ECC encoder supports up to 32-bit correction by using 60 error
correction bytes. There is no sub-page ECC step, ECC is calculated
always across the whole page (up to 2k pages).
Limitations:
- HW ECC: Only 2K page with 64+ OOB.
- HW ECC: Only 24 and 32-bit error correction implemented.
Raw writes have been tested using the generic nand_write_page_raw
implementation. However, raw reads are currently not possible
because the controller need to know whether we are going to use
the ECC mode already at NAND_CMD_READ0 command time. At this point
we do not have the information whether it is a raw read or a
regular read at driver level...
Signed-off-by: Bill Pringlemeir <bpringlemeir@nbsps.com>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Stefan Agner [Thu, 3 Sep 2015 01:06:33 +0000 (18:06 -0700)]
mtd: nand: vf610_nfc: Freescale NFC for VF610, MPC5125 and others
This driver supports Freescale NFC (NAND flash controller) found on
Vybrid (VF610), MPC5125, MCF54418 and Kinetis K70. The driver has
been tested using 8-bit and 16-bit NAND interface on the ARM based
Vybrid SoC VF500 and VF610 platform.
parameter page reading.
Limitations:
- Untested on MPC5125 and M54418.
- DMA and pipelining not used.
- 2K pages or less.
- No chip select, one NAND chip per controller.
- No hardware ECC.
Some paths have been hand-optimized and evaluated by measurements
made using mtd_speedtest.ko on a 100MB MTD partition.
Colibri VF50
eb write % eb read % page write % page read %
rel/opt 5175 11537 4560 11039
opt 5164 -0.21 11420 -1.01 4737 +3.88 10918 -1.10
none 5113 -1.20 11352 -1.60 4490 -1.54 10865 -1.58
Colibri VF61
eb write % eb read % page write % page read %
rel/opt 5766 13096 5459 12846
opt 5883 +2.03 13064 -0.24 5561 +1.87 12802 -0.34
none 5701 -1.13 12980 -0.89 5488 +0.53 12735 -0.86
rel = using readl_relaxed/writel_relaxed in optimized paths
opt = hand-optimized by combining multiple accesses into one read/write
The measurements have not been statistically verfied, hence use them
with care. The author came to the conclusion that using the relaxed
variants of readl/writel are not worth the additional code.
Signed-off-by: Bill Pringlemeir <bpringlemeir@nbsps.com>
Tested-by: Albert ARIBAUD <albert.aribaud@3adev.fr>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Reviewed-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Brian Norris [Mon, 21 Sep 2015 20:26:59 +0000 (13:26 -0700)]
mtd: provide proper 32/64-bit compat_ioctl() support for BLKPG
After a bit of poking around wondering why my 32-bit user-space can't
seem to send a proper ioctl(BLKPG) to an MTD on my 64-bit kernel
(ARM64), I noticed that struct blkpg_ioctl_arg is actually pretty
unsuitable for use in the ioctl() ABI, due to its use of raw pointers,
and its lack of alignment/packing restrictions (32-bit arch'es tend to
pack the 4 fields into 4 32-bit words, whereas 64-bit arch'es would add
padding after the third int, and make this 6 32-bit words).
Anyway, this means BLKPG deserves some special compat_ioctl handling. Do
the conversion in a small shim for MTD.
block/compat_ioctl.c already has compat support for the block subsystem,
but it does so by a re-marshalling data to/from user-space (see
compat_blkpg_ioctl()). Personally, I think this approach is cleaner.
Tested only on MTD, with an ARM32 user space on an ARM64 kernel.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Brian Norris [Fri, 18 Sep 2015 22:08:14 +0000 (15:08 -0700)]
mtd: spi-nor: add support for w25q128fw
Tested only with single I/O, but the datasheet says it supports dual and
quad.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Furquan Shaikh [Fri, 18 Sep 2015 21:59:17 +0000 (14:59 -0700)]
mtd: spi-nor: scale up timeout for full-chip erase
This patch fixes timeout issues seen on large NOR flash (e.g., 16MB
w25q128fw) when using ioctl(MEMERASE) with offset=0 and length=16M. The
input parameters matter because spi_nor_erase() uses a different code
path for full-chip erase, where we use the SPINOR_OP_CHIP_ERASE (0xc7)
opcode.
Fix: use a different timeout for full-chip erase than for other
commands.
While most operations can be expected to perform relatively similarly
across a variety of NOR flash types and sizes (and therefore might as
well use a similar timeout to keep things simple), full-chip erase is
unique, because the time it typically takes to complete:
(1) is much larger than most operations and
(2) scales with the size of the flash.
Let's base our timeout on the original comments stuck here -- that a 2MB
flash requires max 40s to erase.
Small survey of a few flash datasheets I have lying around:
Chip Size (MB) Max chip erase (seconds)
---- -------- ------------------------
w25q32fw 4 50
w25q64cv 8 30
w25q64fw 8 100
w25q128fw 16 200
s25fl128s 16 ~256
s25fl256s 32 ~512
From this data, it seems plenty sufficient to say we need to wait for
40 seconds for each 2MB of flash.
After this change, it might make some sense to decrease the timeout for
everything else, as even the most extreme operations (single block
erase?) shouldn't take more than a handful of seconds. But for safety,
let's leave it as-is. It's only an error case, after all, so we don't
exactly need to optimize it.
Signed-off-by: Furquan Shaikh <furquan@google.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Yao Yuan [Wed, 16 Sep 2015 09:59:45 +0000 (17:59 +0800)]
mtd: spi-nor: Add support for sst25wf040b
It is a 512KiB flash with 4 KiB erase sectors.
Signed-off-by: Yuan Yao <yao.yuan@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Tom Englund [Fri, 18 Sep 2015 19:42:59 +0000 (21:42 +0200)]
pcmciamtd: Add id for PRETEC 4MB SRAM
The module pcmciamtd doesn't generate a mtd node for PRETEC 4MB SRAM
cards without the id and hash added to pcmciamtd.c
Tested on 3 different 4MB pretec sram cards.
Signed-off-by: Tom Englund <tomenglund26@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Graham Moore [Tue, 21 Jul 2015 14:39:31 +0000 (09:39 -0500)]
mtd: nand: denali: max_banks calculation changed in revision 5.1
Read Denali hardware revision number and use it to
calculate max_banks, The encoding of max_banks changed
in Denali revision 5.1.
Signed-off-by: Graham Moore <grmoore@opensource.altera.com>
[Brian: parentheses around macro arg]
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Enrico Jorns [Fri, 18 Sep 2015 08:02:41 +0000 (10:02 +0200)]
mtd: nand: denali: pass col argument to READID operation
A read id operation followed by 0x00 reads the device ID while
a read id operation followed by 0x20 reads the possible ONFI identifier.
As the READID function did not propagate the second id parameter but had
a hard-coded call for 0x90 0x00, reading the ONFI identifier was not
possible and thus chips werde not detected (tested with
MT29F8G08ABABAWP)
Signed-off-by: Enrico Jorns <ejo@pengutronix.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
fangwei [Tue, 7 Jul 2015 02:54:26 +0000 (10:54 +0800)]
jffs2: remove unneeded kfree
c->oobbuf hasn't been kmalloced in jffs2_dataflash_setup, so
there is no need to free it.
Signed-off-by: Wei Fang <fangwei1@huawei.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Brian Norris [Fri, 19 Jun 2015 20:10:07 +0000 (13:10 -0700)]
mtd: cmdlinepart: convert printk() to pr_*()
This driver uses some custom macros for printing. Let's use the standard
pr_fmt()/pr_{err,warn}().
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Brian Norris [Fri, 19 Jun 2015 20:10:06 +0000 (13:10 -0700)]
mtd: cmdlinepart: allow small partitions
I'm not sure why we have a PAGE_SIZE restriction on this partition
parser.
If we really wanted the restriction, I would expect it to be a
restriction for *all* parsers, so we'd move it to the MTD core
At any rate, while small partitions may not be useful (they'll often be
smaller than the eraseblock size and therefore can only be used
read-only), they still have use as a read-only partition.
This restriction is especially annoying because it aborts the entire
MTD's cmdline parsing, leaving it unpartitioned.
So, let's kill the restriction and only check for zero-sized partitions,
which I expect we don't want to allow.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Joachim Eastwood [Thu, 9 Jul 2015 20:30:57 +0000 (22:30 +0200)]
mtd: spi-nor: s25fl008k and s25fl016k supports dual/quad mode
s25fl016k can be found on Embedded Artists' LPC4357 Developer's Kit
where is used in quad mode by the LPC4357 SPIFI controller.
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Johannes Thumshirn [Wed, 8 Jul 2015 15:15:34 +0000 (17:15 +0200)]
mtd: Destroy mtd_idr on module_exit
Destroy mtd_idr on module_exit, reclaiming the allocated memory.
This was detected by the following semantic patch (written by Luis Rodriguez
<mcgrof@suse.com>)
<SmPL>
@ defines_module_init @
declarer name module_init, module_exit;
declarer name DEFINE_IDR;
identifier init;
@@
module_init(init);
@ defines_module_exit @
identifier exit;
@@
module_exit(exit);
@ declares_idr depends on defines_module_init && defines_module_exit @
identifier idr;
@@
DEFINE_IDR(idr);
@ on_exit_calls_destroy depends on declares_idr && defines_module_exit @
identifier declares_idr.idr, defines_module_exit.exit;
@@
exit(void)
{
...
idr_destroy(&idr);
...
}
@ missing_module_idr_destroy depends on declares_idr && defines_module_exit && !on_exit_calls_destroy @
identifier declares_idr.idr, defines_module_exit.exit;
@@
exit(void)
{
...
+idr_destroy(&idr);
}
</SmPL>
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Robert Jarzmik [Mon, 28 Sep 2015 20:56:51 +0000 (22:56 +0200)]
mtd: nand: pxa3xx-nand: prevent DFI bus lockup on removal
After the conversion of pxa architecture to common clock framework, the
NAND clock can be disabled on driver exit.
In this case, it happens that if the driver used the NAND and set the
DFI arbitration bit, the next access to a static memory controller area,
such as an ethernet card, will stall the system bus, and the core will
be stalled forever.
This is especially true on pxa31x SoCs, where the NDCR was augmented
with a new bit to prevent this lockups by giving full ownership of the
DFI arbiter to the SMC, in change SCr#6.
Fix this by clearing the DFI arbritration bit in driver exit. This
effectively prevents a lockup on zylonite when removing pxa3xx-nand
module, and using ethernet afterwards.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Luis de Bethencourt [Thu, 17 Sep 2015 22:13:28 +0000 (00:13 +0200)]
mtd: mxc_nand: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.
Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Peng Fan [Fri, 11 Sep 2015 13:41:47 +0000 (21:41 +0800)]
mtd: blktrans: fix multiplication overflow
In drivers/mtd/mtd_blkdevs.c:
406 set_capacity(gd, (new->size * tr->blksize) >> 9);
The type of new->size is unsigned long and the type of tr->blksize is int,
the result of 'new->size * tr->blksize' may exceed ULONG_MAX on 32bit
machines.
I use nand chip MT29F32G08CBADBWP which is 4GB and the parameters passed
to kernel is 'mtdparts=gpmi-nand:-(user)', the whole nand chip will be
treated as a 4GB mtd partition. new->size is 0x800000 and tr->blksize is
0x200, 'new->size * tr->blksize' however is 0. This is what we do not want
to see.
Using type cast u64 to fix the multiplication overflow issue.
Signed-off-by: Peng Fan <van.freenix@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Luis de Bethencourt [Thu, 17 Sep 2015 22:13:01 +0000 (00:13 +0200)]
mtd: mpc5121_nfc: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.
Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Luis de Bethencourt [Thu, 17 Sep 2015 22:12:30 +0000 (00:12 +0200)]
mtd: fsl_ifc_nand: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.
Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Luis de Bethencourt [Thu, 17 Sep 2015 22:11:59 +0000 (00:11 +0200)]
mtd: fsl_elbc_nand: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.
Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Luis de Bethencourt [Thu, 17 Sep 2015 22:14:02 +0000 (00:14 +0200)]
mtd: orion_nand: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.
Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Yaowei Bai [Mon, 28 Sep 2015 14:15:38 +0000 (22:15 +0800)]
jffs2: remove unnecessary new_valid_dev check
As new_valid_dev always returns 1, so !new_valid_dev check is not
needed, remove it.
Signed-off-by: Yaowei Bai <bywxiaobai@163.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Robert Jarzmik [Sun, 6 Sep 2015 13:12:47 +0000 (15:12 +0200)]
mtd: nand: pxa3xx-nand: switch to dmaengine
Now pxa architecture has a dmaengine driver, remove the access to direct
dma registers in favor of the more generic dmaengine code.
This should be also applicable for mmp and orion, provided they work in
device-tree environment.
This patch also removes the previous hack which was necessary to make
the driver work in a devicetree environment.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Tested-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
[Brian: fixup use of 'enum dma_transfer_direction']
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Eric Benard [Wed, 23 Sep 2015 15:07:28 +0000 (17:07 +0200)]
mxc_nand: fix copy_spare
it was broken by
35d5d20efad8a04c8c002c7f31241dff973977a6
"mtd: mxc_nand: cleanup copy_spare function"
else we get the following error :
[ 22.709507] ubi0: attaching mtd3
[ 23.613470] ubi0: scanning is finished
[ 23.617278] ubi0: empty MTD device detected
[ 23.623219] Unhandled fault: imprecise external abort (0x1c06) at 0x9e62f0ec
[ 23.630291] pgd =
9df80000
[ 23.633005] [
9e62f0ec] *pgd=
8e60041e(bad)
[ 23.637064] Internal error: : 1c06 [#1] SMP ARM
[ 23.641605] Modules linked in:
[ 23.644687] CPU: 0 PID: 99 Comm: ubiattach Not tainted 4.2.0-dirty #22
[ 23.651222] Hardware name: Freescale i.MX53 (Device Tree Support)
[ 23.657322] task:
9e687300 ti:
9dcfc000 task.ti:
9dcfc000
[ 23.662744] PC is at memcpy16_toio+0x4c/0x74
[ 23.667026] LR is at mxc_nand_command+0x484/0x640
[ 23.671739] pc : [<
803f9c08>] lr : [<
803faeb0>] psr:
60000013
[ 23.671739] sp :
9dcfdb10 ip :
9e62f0ea fp :
9dcfdb1c
[ 23.683222] r10:
a09c1000 r9 :
0000001a r8 :
ffffffff
[ 23.688453] r7 :
ffffffff r6 :
9e674810 r5 :
9e674810 r4 :
000000b6
[ 23.694985] r3 :
a09c16a4 r2 :
a09c16a4 r1 :
a09c16a4 r0 :
0000ffff
[ 23.701521] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
[ 23.708662] Control:
10c5387d Table:
8df80019 DAC:
00000015
[ 23.714413] Process ubiattach (pid: 99, stack limit = 0x9dcfc210)
[ 23.720514] Stack: (0x9dcfdb10 to 0x9dcfe000)
[ 23.724881] db00:
9dcfdb6c 9dcfdb20 803faeb0 803f9bc8
[ 23.733069] db20:
803f227c 803f9b74 ffffffff 9e674810 9e674810 9e674810 00000040 9e62f010
[ 23.741255] db40:
803faa2c 9e674b40 9e674810 803faa2c 00000400 803faa2c 00000000 9df42800
[ 23.749441] db60:
9dcfdb9c 9dcfdb70 803f2024 803faa38 9e4201cc 00000000 803f0a78 9e674b40
[ 23.757627] db80:
803f1f80 9e674810 00000400 00000400 9dcfdc14 9dcfdba0 803f3bd8 803f1f8c
[ 23.765814] dba0:
9e4201cc 00000000 00000580 00000000 00000000 800718c0 0000007f 00001000
[ 23.774000] dbc0:
9df42800 000000e0 00000000 00000000 9e4201cc 00000000 00000000 00000000
[ 23.782186] dbe0:
00000580 00000580 00000000 9e674810 9dcfdc20 9dcfdce8 9df42800 00580000
[ 23.790372] dc00:
00000000 00000400 9dcfdc6c 9dcfdc18 803f3f94 803f39a4 9dcfdc20 00000000
[ 23.798558] dc20:
00000000 00000400 00000000 00000000 00000000 00000000 9df42800 00000000
[ 23.806744] dc40:
9dcfdd0c 00580000 00000000 00000400 00000000 9df42800 9dee1000 9d802000
[ 23.814930] dc60:
9dcfdc94 9dcfdc70 803eb63c 803f3f38 00000400 9dcfdce8 9df42800 dead4ead
[ 23.823116] dc80:
803eb5f4 00000000 9dcfdcc4 9dcfdc98 803e82ac 803eb600 00000400 9dcfdce8
[ 23.831301] dca0:
9df42800 00000400 9dee0000 00000000 00000400 00000000 9dcfdd1c 9dcfdcc8
[ 23.839488] dcc0:
80406048 803e8230 00000400 9dcfdce8 9df42800 9dcfdc78 00000008 00000000
[ 23.847673] dce0:
00000000 00000000 00000000 00000004 00000000 9df42800 9dee0000 00000000
[ 23.855859] dd00:
9d802030 00000000 9dc8b214 9d802000 9dcfdd44 9dcfdd20 804066cc 80405f50
[ 23.864047] dd20:
00000400 9dc8b200 9d802030 9df42800 9dee0000 9dc8b200 9dcfdd84 9dcfdd48
[ 23.872233] dd40:
8040a544 804065ac 9e401c80 000080d0 9dcfdd84 00000001 800fc828 9df42400
[ 23.880418] dd60:
00000000 00000080 9dc8b200 9dc8b200 9dc8b200 9dee0000 9dcfdddc 9dcfdd88
[ 23.888605] dd80:
803fb560 8040a440 9dcfddc4 9dcfdd98 800f1428 9dee1000 a0acf000 00000000
[ 23.896792] dda0:
00000000 ffffffff 00000006 00000000 9dee0000 9dee0000 00005600 00000080
[ 23.904979] ddc0:
9dc8b200 a0acf000 9dc8b200 8112514c 9dcfde24 9dcfdde0 803fc08c 803fb4f0
[ 23.913165] dde0:
9e401c80 00000013 9dcfde04 9dcfddf8 8006bbf8 8006ba00 9dcfde24 00000000
[ 23.921351] de00:
9dee0000 00000065 9dee0000 00000001 9dc8b200 8112514c 9dcfde84 9dcfde28
[ 23.929538] de20:
8040afa0 803fb948 ffffffff 00000000 9dc8b214 9dcfde40 800f1428 800f11dc
[ 23.937724] de40:
9dc8b21c 9dc8b20c 9dc8b204 9dee1000 9dc8b214 8069bb60 fffff000 fffff000
[ 23.945911] de60:
9e7b5400 00000000 9dee0000 9dee1000 00001000 9e7b5400 9dcfdecc 9dcfde88
[ 23.954097] de80:
803ff1bc 8040a630 9dcfdea4 9dcfde98 00000800 00000800 9dcfdecc 9dcfdea8
[ 23.962284] dea0:
803e8f6c 00000000 7e87ab70 9e7b5400 80113e30 00000003 9dcfc000 00000000
[ 23.970470] dec0:
9dcfdf04 9dcfded0 804008cc 803feb98 ffffffff 00000003 00000000 00000000
[ 23.978656] dee0:
00000000 00000000 9e7cb000 9dc193e0 7e87ab70 9dd92140 9dcfdf7c 9dcfdf08
[ 23.986842] df00:
80113b5c 8040080c 800fbed8 8006bbf0 9e7cb000 00000003 9e7cb000 9dd92140
[ 23.995029] df20:
9dc193e0 9dd92148 9dcfdf4c 9dcfdf38 8011022c 800fbe78 8000f9cc 9e687300
[ 24.003216] df40:
9dcfdf6c 9dcfdf50 8011f798 8007ffe8 7e87ab70 9dd92140 00000003 9dd92140
[ 24.011402] df60:
40186f40 7e87ab70 9dcfc000 00000000 9dcfdfa4 9dcfdf80 80113e30 8011373c
[ 24.019588] df80:
7e87ab70 7e87ab70 7e87aea9 00000036 8000fb84 9dcfc000 00000000 9dcfdfa8
[ 24.027775] dfa0:
8000f9a0 80113e00 7e87ab70 7e87ab70 00000003 40186f40 7e87ab70 00000000
[ 24.035962] dfc0:
7e87ab70 7e87ab70 7e87aea9 00000036 00000000 00000000 76fd1f70 00000000
[ 24.044148] dfe0:
76f80f8c 7e87ab28 00009810 76f80fc4 60000010 00000003 00000000 00000000
[ 24.052328] Backtrace:
[ 24.054806] [<
803f9bbc>] (memcpy16_toio) from [<
803faeb0>] (mxc_nand_command+0x484/0x640)
[ 24.062996] [<
803faa2c>] (mxc_nand_command) from [<
803f2024>] (nand_write_page+0xa4/0x154)
[ 24.071264] r10:
9df42800 r9:
00000000 r8:
803faa2c r7:
00000400 r6:
803faa2c r5:
9e674810
[ 24.079180] r4:
9e674b40
[ 24.081738] [<
803f1f80>] (nand_write_page) from [<
803f3bd8>] (nand_do_write_ops+0x240/0x444)
[ 24.090180] r8:
00000400 r7:
00000400 r6:
9e674810 r5:
803f1f80 r4:
9e674b40
[ 24.096970] [<
803f3998>] (nand_do_write_ops) from [<
803f3f94>] (nand_write+0x68/0x88)
[ 24.104804] r10:
00000400 r9:
00000000 r8:
00580000 r7:
9df42800 r6:
9dcfdce8 r5:
9dcfdc20
[ 24.112719] r4:
9e674810
[ 24.115287] [<
803f3f2c>] (nand_write) from [<
803eb63c>] (part_write+0x48/0x50)
[ 24.122514] r10:
9d802000 r9:
9dee1000 r8:
9df42800 r7:
00000000 r6:
00000400 r5:
00000000
[ 24.130429] r4:
00580000
[ 24.132989] [<
803eb5f4>] (part_write) from [<
803e82ac>] (mtd_write+0x88/0xa0)
[ 24.140129] r5:
00000000 r4:
803eb5f4
[ 24.143748] [<
803e8224>] (mtd_write) from [<
80406048>] (ubi_io_write+0x104/0x65c)
[ 24.151235] r7:
00000000 r6:
00000400 r5:
00000000 r4:
9dee0000
[ 24.156968] [<
80405f44>] (ubi_io_write) from [<
804066cc>] (ubi_io_write_ec_hdr+0x12c/0x190)
[ 24.165323] r10:
9d802000 r9:
9dc8b214 r8:
00000000 r7:
9d802030 r6:
00000000 r5:
9dee0000
[ 24.173239] r4:
9df42800
[ 24.175798] [<
804065a0>] (ubi_io_write_ec_hdr) from [<
8040a544>] (ubi_early_get_peb+0x110/0x1f0)
[ 24.184587] r6:
9dc8b200 r5:
9dee0000 r4:
9df42800
[ 24.189262] [<
8040a434>] (ubi_early_get_peb) from [<
803fb560>] (create_vtbl+0x7c/0x238)
[ 24.197271] r10:
9dee0000 r9:
9dc8b200 r8:
9dc8b200 r7:
9dc8b200 r6:
00000080 r5:
00000000
[ 24.205187] r4:
9df42400
[ 24.207746] [<
803fb4e4>] (create_vtbl) from [<
803fc08c>] (ubi_read_volume_table+0x750/0xa64)
[ 24.216187] r10:
8112514c r9:
9dc8b200 r8:
a0acf000 r7:
9dc8b200 r6:
00000080 r5:
00005600
[ 24.224103] r4:
9dee0000
[ 24.226662] [<
803fb93c>] (ubi_read_volume_table) from [<
8040afa0>] (ubi_attach+0x97c/0x152c)
[ 24.235103] r10:
8112514c r9:
9dc8b200 r8:
00000001 r7:
9dee0000 r6:
00000065 r5:
9dee0000
[ 24.243018] r4:
00000000
[ 24.245579] [<
8040a624>] (ubi_attach) from [<
803ff1bc>] (ubi_attach_mtd_dev+0x630/0xbac)
[ 24.253673] r10:
9e7b5400 r9:
00001000 r8:
9dee1000 r7:
9dee0000 r6:
00000000 r5:
9e7b5400
[ 24.261588] r4:
fffff000
[ 24.264148] [<
803feb8c>] (ubi_attach_mtd_dev) from [<
804008cc>] (ctrl_cdev_ioctl+0xcc/0x1cc)
[ 24.272589] r10:
00000000 r9:
9dcfc000 r8:
00000003 r7:
80113e30 r6:
9e7b5400 r5:
7e87ab70
[ 24.280505] r4:
00000000
[ 24.283070] [<
80400800>] (ctrl_cdev_ioctl) from [<
80113b5c>] (do_vfs_ioctl+0x42c/0x6c4)
[ 24.291077] r6:
9dd92140 r5:
7e87ab70 r4:
9dc193e0
[ 24.295753] [<
80113730>] (do_vfs_ioctl) from [<
80113e30>] (SyS_ioctl+0x3c/0x64)
[ 24.303066] r10:
00000000 r9:
9dcfc000 r8:
7e87ab70 r7:
40186f40 r6:
9dd92140 r5:
00000003
[ 24.310981] r4:
9dd92140
[ 24.313549] [<
80113df4>] (SyS_ioctl) from [<
8000f9a0>] (ret_fast_syscall+0x0/0x54)
[ 24.321123] r9:
9dcfc000 r8:
8000fb84 r7:
00000036 r6:
7e87aea9 r5:
7e87ab70 r4:
7e87ab70
[ 24.328957] Code:
e1c300b0 e1510002 e1a03001 1afffff9 (
e89da800)
[ 24.335066] ---[ end trace
ab1cb17887f21bbb ]---
[ 24.340249] Unhandled fault: imprecise external abort (0x1c06) at 0x7ee8bcf0
[ 24.347310] pgd =
9df3c000
[ 24.350023] [
7ee8bcf0] *pgd=
8dcbf831, *pte=
8eb3334f, *ppte=
8eb3383f
Segmentation fault
Fixes: 35d5d20efad8 ("mtd: mxc_nand: cleanup copy_spare function")
Signed-off-by: Eric Bénard <eric@eukrea.com>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Baruch Siach <baruch@tkos.co.il>
Cc: <stable@vger.kernel.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Boris BREZILLON [Sun, 13 Sep 2015 16:14:43 +0000 (18:14 +0200)]
mtd: nand: sunxi: fix sunxi_nand_chips_cleanup()
The sunxi_nand_chips_cleanup() function is missing a call to list_del()
which generates a double free error.
Reported-by: Priit Laes <plaes@plaes.org>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: <stable@vger.kernel.org> # 3.19+
Fixes: 1fef62c1423b ("mtd: nand: add sunxi NAND flash controller support")
Tested-by: Priit Laes <plaes@plaes.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Julia Lawall [Sun, 13 Sep 2015 12:15:29 +0000 (14:15 +0200)]
jffs2: drop null test before destroy functions
Remove unneeded NULL test.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@ expression x; @@
-if (x != NULL)
\(kmem_cache_destroy\|mempool_destroy\|dma_pool_destroy\)(x);
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Julia Lawall [Sun, 13 Sep 2015 12:14:54 +0000 (14:14 +0200)]
mtd: nandsim: drop null test before destroy functions
Remove unneeded NULL test.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@ expression x; @@
-if (x != NULL)
\(kmem_cache_destroy\|mempool_destroy\|dma_pool_destroy\)(x);
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cyrille Pitchen [Fri, 18 Sep 2015 15:49:25 +0000 (17:49 +0200)]
mtd: spi-nor: remove unused read_xfer/write_xfer hooks
struct spi_nor_xfer_cfg and read_xfer/write_xfer hooks were never used by
any driver. Do some cleanup by removing them.
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Boris BREZILLON [Thu, 3 Sep 2015 16:03:38 +0000 (18:03 +0200)]
mtd: nand: add nand_check_erased helper functions
Add two helper functions to help NAND controller drivers test whether a
specific NAND region is erased or not.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Boris BREZILLON [Mon, 14 Sep 2015 08:41:03 +0000 (10:41 +0200)]
mtd: nand: sunxi: fix OOB handling in ->write_xxx() functions
The USER_DATA register cannot be accessed using byte accessors on A13
SoCs, thus triggering a bug when using memcpy_toio on this register.
Declare an helper macros to convert an OOB buffer into a suitable
USER_DATA value and vice-versa.
This patch also fixes an error in the oob_required logic (some OOB data
are not written even if the user required it) by removing the
oob_required condition, which is perfectly valid since the core already
fill ->oob_poi with FFs when oob_required is false.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: <stable@vger.kernel.org> # 3.19+
Fixes: 1fef62c1423b ("mtd: nand: add sunxi NAND flash controller support")
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Brian Norris [Mon, 14 Sep 2015 01:41:29 +0000 (18:41 -0700)]
Merge tag 'v4.3-rc1' into MTD -next development
Linus Torvalds [Sat, 12 Sep 2015 23:35:56 +0000 (16:35 -0700)]
Linux 4.3-rc1
Linus Torvalds [Sat, 12 Sep 2015 19:24:29 +0000 (12:24 -0700)]
Merge tag 'cris-for-4.3' of git://git./linux/kernel/git/jesper/cris
Pull CRIS updates from Jesper Nilsson:
"Mostly removal of old cruft of which we can use a generic version, or
fixes for code not commonly run in the cris port, but also additions
to enable some good debug"
* tag 'cris-for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris: (25 commits)
CRISv10: delete unused lib/dmacopy.c
CRISv10: delete unused lib/old_checksum.c
CRIS: fix switch_mm() lockdep splat
CRISv32: enable LOCKDEP_SUPPORT
CRIS: add STACKTRACE_SUPPORT
CRISv32: annotate irq enable in idle loop
CRISv32: add support for irqflags tracing
CRIS: UAPI: use generic types.h
CRIS: UAPI: use generic shmbuf.h
CRIS: UAPI: use generic msgbuf.h
CRIS: UAPI: use generic socket.h
CRIS: UAPI: use generic sembuf.h
CRIS: UAPI: use generic sockios.h
CRIS: UAPI: use generic auxvec.h
CRIS: UAPI: use generic headers via Kbuild
CRIS: UAPI: fix elf.h export
CRIS: don't make asm/elf.h depend on asm/user.h
CRIS: UAPI: fix ptrace.h
CRISv32: Squash compile warnings for axisflashmap
CRISv32: Add GPIO driver to the default configs
...
Linus Torvalds [Wed, 27 May 2015 22:32:15 +0000 (15:32 -0700)]
blk: rq_data_dir() should not return a boolean
rq_data_dir() returns either READ or WRITE (0 == READ, 1 == WRITE), not
a boolean value.
Now, admittedly the "!= 0" doesn't really change the value (0 stays as
zero, 1 stays as one), but it's not only redundant, it confuses gcc, and
causes gcc to warn about the construct
switch (rq_data_dir(req)) {
case READ:
...
case WRITE:
...
that we have in a few drivers.
Now, the gcc warning is silly and stupid (it seems to warn not about the
switch value having a different type from the case statements, but about
_any_ boolean switch value), but in this case the code itself is silly
and stupid too, so let's just change it, and get rid of warnings like
this:
drivers/block/hd.c: In function ‘hd_request’:
drivers/block/hd.c:630:11: warning: switch condition has boolean value [-Wswitch-bool]
switch (rq_data_dir(req)) {
The odd '!= 0' came in when "cmd_flags" got turned into a "u64" in
commit
5953316dbf90 ("block: make rq->cmd_flags be 64-bit") and is
presumably because the old code (that just did a logical 'and' with 1)
would then end up making the type of rq_data_dir() be u64 too.
But if we want to retain the old regular integer type, let's just cast
the result to 'int' rather than use that rather odd '!= 0'.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 12 Sep 2015 18:19:01 +0000 (11:19 -0700)]
Merge branch 'writeback-plugging'
Fix up the writeback plugging introduced in commit
d353d7587d02
("writeback: plug writeback at a high level") that then caused problems
due to the unplug happening with a spinlock held.
* writeback-plugging:
writeback: plug writeback in wb_writeback() and writeback_inodes_wb()
Revert "writeback: plug writeback at a high level"
Linus Torvalds [Fri, 11 Sep 2015 20:37:19 +0000 (13:37 -0700)]
writeback: plug writeback in wb_writeback() and writeback_inodes_wb()
We had to revert the pluggin in writeback_sb_inodes() because the
wb->list_lock is held, but we could easily plug at a higher level before
taking that lock, and unplug after releasing it. This does that.
Chris will run performance numbers, just to verify that this approach is
comparable to the alternative (we could just drop and re-take the lock
around the blk_finish_plug() rather than these two commits.
I'd have preferred waiting for actual performance numbers before picking
one approach over the other, but I don't want to release rc1 with the
known "sleeping function called from invalid context" issue, so I'll
pick this cleanup version for now. But if the numbers show that we
really want to plug just at the writeback_sb_inodes() level, and we
should just play ugly games with the spinlock, we'll switch to that.
Cc: Chris Mason <clm@fb.com>
Cc: Josef Bacik <jbacik@fb.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Neil Brown <neilb@suse.de>
Cc: Jan Kara <jack@suse.cz>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 12 Sep 2015 03:06:59 +0000 (20:06 -0700)]
thermal: fix intel PCH thermal driver mismerge
I didn't notice this when merging the thermal code from Zhang, but his
merge (commit
5a924a07f882: "Merge branches 'thermal-core' and
'thermal-intel' of .git into next") of the thermal-core and
thermal-intel branches was wrong.
In thermal-core, commit
17e8351a7739 ("thermal: consistently use int for
temperatures") converted the thermal layer to use "int" for
temperatures.
But in parallel, in the thermal-intel branch commit
d0a12625d2ff
("thermal: Add Intel PCH thermal driver") added support for the intel
PCH thermal sensor using the old interfaces that used "unsigned long"
pointers.
This resulted in warnings like this:
drivers/thermal/intel_pch_thermal.c:184:14: warning: initialization from incompatible pointer type [-Wincompatible-pointer-types]
.get_temp = pch_thermal_get_temp,
^
drivers/thermal/intel_pch_thermal.c:184:14: note: (near initialization for ‘tzd_ops.get_temp’)
drivers/thermal/intel_pch_thermal.c:186:19: warning: initialization from incompatible pointer type [-Wincompatible-pointer-types]
.get_trip_temp = pch_get_trip_temp,
^
drivers/thermal/intel_pch_thermal.c:186:19: note: (near initialization for ‘tzd_ops.get_trip_temp’)
This fixes it.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 12 Sep 2015 02:34:09 +0000 (19:34 -0700)]
Merge branch 'akpm' (patches from Andrew)
Merge fourth patch-bomb from Andrew Morton:
- sys_membarier syscall
- seq_file interface changes
- a few misc fixups
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
revert "ocfs2/dlm: use list_for_each_entry instead of list_for_each"
mm/early_ioremap: add explicit #include of asm/early_ioremap.h
fs/seq_file: convert int seq_vprint/seq_printf/etc... returns to void
selftests: enhance membarrier syscall test
selftests: add membarrier syscall test
sys_membarrier(): system-wide memory barrier (generic, x86)
MODSIGN: fix a compilation warning in extract-cert
Vineet Gupta [Fri, 11 Sep 2015 23:32:22 +0000 (16:32 -0700)]
ARCv2: [axs103_smp] Reduce clk for SMP FPGA configs
Newer bitfiles needs the reduced clk even for SMP builds
Cc: <stable@vger.kernel.org> #4.2
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 12 Sep 2015 02:29:00 +0000 (19:29 -0700)]
Merge tag 'ntb-4.3' of git://github.com/jonmason/ntb
Pull NTB fixes from Jon Mason:
"NTB bug and documentation fixes, new device IDs, performance
improvements, and adding a mailing list to MAINTAINERS for NTB"
* tag 'ntb-4.3' of git://github.com/jonmason/ntb:
NTB: Fix range check on memory window index
NTB: Improve index handling in B2B MW workaround
NTB: Fix documentation for ntb_peer_db_clear.
NTB: Fix documentation for ntb_link_is_up
NTB: Use unique DMA channels for TX and RX
NTB: Remove dma_sync_wait from ntb_async_rx
NTB: Clean up QP stats info
NTB: Make the transport list in order of discovery
NTB: Add PCI Device IDs for Broadwell Xeon
NTB: Add flow control to the ntb_netdev
NTB: Add list to MAINTAINERS
Linus Torvalds [Sat, 12 Sep 2015 02:17:28 +0000 (19:17 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
Pull more input updates from Dmitry Torokhov:
"Second round of updates for the input subsystem.
This introduces two brand new touchscreen drivers (Colibri and
imx6ul_tsc), some small driver fixes, and we are no longer report
errors from evdev_flush() as users do not really have a way of
handling errors, error codes that we were returning were not on the
list of errors supposed to be returned by close(), and errors were
causing issues with one of older versions of systemd"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: imx_keypad - remove obsolete comment
Input: touchscreen - add imx6ul_tsc driver support
Input: Add touchscreen support for Colibri VF50
Input: i8042 - lower log level for "no controller" message
Input: evdev - do not report errors form flush()
Input: elants_i2c - extend the calibration timeout to 12 seconds
Input: sparcspkr - fix module autoload for OF platform drivers
Input: regulator-haptic - fix module autoload for OF platform driver
Input: pwm-beeper - fix module autoload for OF platform driver
Input: ab8500-ponkey - Fix module autoload for OF platform driver
Input: cyttsp - remove unnecessary MODULE_ALIAS()
Input: elan_i2c - add ACPI ID "ELAN1000"
Linus Torvalds [Sat, 12 Sep 2015 02:11:06 +0000 (19:11 -0700)]
Merge tag 'pm+acpi-4.3-rc1-2' of git://git./linux/kernel/git/rafael/linux-pm
Pull more power management and ACPI updates from Rafael Wysocki:
"These are mostly fixes and cleanups on top of the previous PM+ACPI
pull request (cpufreq core and drivers, cpuidle, generic power domains
framework). Some of them didn't make to that pull request and some
fix issues introduced by it.
The only really new thing is the support for suspend frequency in the
cpufreq-dt driver, but it is needed to fix an issue with Exynos
platforms.
Specifics:
- build fix for the new Mediatek MT8173 cpufreq driver (Guenter
Roeck).
- generic power domains framework fixes (power on error code path,
subdomain removal) and cleanup of a deprecated API user (Geert
Uytterhoeven, Jon Hunter, Ulf Hansson).
- cpufreq-dt driver fixes including two fixes for bugs related to the
new Operating Performance Points Device Tree bindings introduced
recently (Viresh Kumar).
- suspend frequency support for the cpufreq-dt driver (Bartlomiej
Zolnierkiewicz, Viresh Kumar).
- cpufreq core cleanups (Viresh Kumar).
- intel_pstate driver fixes (Chen Yu, Kristen Carlson Accardi).
- additional sanity check in the cpuidle core (Xunlei Pang).
- fix for a comment related to CPU power management (Lina Iyer)"
* tag 'pm+acpi-4.3-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
intel_pstate: fix PCT_TO_HWP macro
intel_pstate: Fix user input of min/max to legal policy region
PM / OPP: Return suspend_opp only if it is enabled
cpufreq-dt: add suspend frequency support
cpufreq: allow cpufreq_generic_suspend() to work without suspend frequency
PM / OPP: add dev_pm_opp_get_suspend_opp() helper
staging: board: Migrate away from __pm_genpd_name_add_device()
cpufreq: Use __func__ to print function's name
cpufreq: staticize cpufreq_cpu_get_raw()
PM / Domains: Ensure subdomain is not in use before removing
cpufreq: Add ARM_MT8173_CPUFREQ dependency on THERMAL
cpuidle/coupled: Add sanity check for safe_state_index
PM / Domains: Try power off masters in error path of __pm_genpd_poweron()
cpufreq: dt: Tolerance applies on both sides of target voltage
cpufreq: dt: Print error on failing to mark OPPs as shared
cpufreq: dt: Check OPP count before marking them shared
kernel/cpu_pm: fix cpu_cluster_pm_exit comment
Linus Torvalds [Sat, 12 Sep 2015 02:00:42 +0000 (19:00 -0700)]
Merge branch 'for-next' of git://git./linux/kernel/git/nab/target-pending
Pull SCSI target updates from Nicholas Bellinger:
"Here are the outstanding target-pending updates for v4.3-rc1.
Mostly bug-fixes and minor changes this round. The fallout from the
big v4.2-rc1 RCU conversion have (thus far) been minimal.
The highlights this round include:
- Move sense handling routines into scsi_common code (Sagi)
- Return ABORTED_COMMAND sense key for PI errors (Sagi)
- Add tpg_enabled_sendtargets attribute for disabled iscsi-target
discovery (David)
- Shrink target struct se_cmd by rearranging fields (Roland)
- Drop iSCSI use of mutex around max_cmd_sn increment (Roland)
- Replace iSCSI __kernel_sockaddr_storage with sockaddr_storage (Andy +
Chris)
- Honor fabric max_data_sg_nents I/O transfer limit (Arun + Himanshu +
nab)
- Fix EXTENDED_COPY >= v4.1 regression OOPsen (Alex + nab)"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (37 commits)
target: use stringify.h instead of own definition
target/user: Fix UFLAG_UNKNOWN_OP handling
target: Remove no-op conditional
target/user: Remove unused variable
target: Fix max_cmd_sn increment w/o cmdsn mutex regressions
target: Attach EXTENDED_COPY local I/O descriptors to xcopy_pt_sess
target/qla2xxx: Honor max_data_sg_nents I/O transfer limit
target/iscsi: Replace __kernel_sockaddr_storage with sockaddr_storage
target/iscsi: Replace conn->login_ip with login_sockaddr
target/iscsi: Keep local_ip as the actual sockaddr
target/iscsi: Fix np_ip bracket issue by removing np_ip
target: Drop iSCSI use of mutex around max_cmd_sn increment
qla2xxx: Update tcm_qla2xxx module description to 24xx+
iscsi-target: Add tpg_enabled_sendtargets for disabled discovery
drivers: target: Drop unlikely before IS_ERR(_OR_NULL)
target: check DPO/FUA usage for COMPARE AND WRITE
target: Shrink struct se_cmd by rearranging fields
target: Remove cmd->se_ordered_id (unused except debug log lines)
target: add support for START_STOP_UNIT SCSI opcode
target: improve unsupported opcode message
...
Linus Torvalds [Sat, 12 Sep 2015 01:15:18 +0000 (18:15 -0700)]
Merge tag 'scsi-misc' of git://git./linux/kernel/git/jejb/scsi
Pull second round of SCSI updates from James Bottomley:
"There's one late arriving patch here (added today), fixing a build
issue which the scsi_dh patch set in here uncovered. Other than that,
everything has been incubated in -next and the checkers for a week.
The major pieces of this patch are a set patches facilitating better
integration between scsi and scsi_dh (the device handling layer used
by multi-path; all the dm parts are acked by Mike Snitzer).
This also includes driver updates for mp3sas, scsi_debug and an
assortment of bug fixes"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (50 commits)
scsi_dh: fix randconfig build error
scsi: fix scsi_error_handler vs. scsi_host_dev_release race
fcoe: Convert use of __constant_htons to htons
mpt2sas: setpci reset kernel oops fix
pm80xx: Don't override ts->stat on IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY
lpfc: Fix possible use-after-free and double free in lpfc_mbx_cmpl_rdp_page_a2()
bfa: Fix incorrect de-reference of pointer
bfa: Fix indentation
scsi_transport_sas: Remove check for SAS expander when querying bay/enclosure IDs.
scsi_debug: resp_request: remove unused variable
scsi_debug: fix REPORT LUNS Well Known LU
scsi_debug: schedule_resp fix input variable check
scsi_debug: make dump_sector static
scsi_debug: vfree is null safe so drop the check
scsi_debug: use SCSI_W_LUN_REPORT_LUNS instead of SAM2_WLUN_REPORT_LUNS;
scsi_debug: define pr_fmt() for consistent logging
mpt2sas: Refcount fw_events and fix unsafe list usage
mpt2sas: Refcount sas_device objects and fix unsafe list usage
scsi_dh: return SCSI_DH_NOTCONN in scsi_dh_activate()
scsi_dh: don't allow to detach device handlers at runtime
...
Linus Torvalds [Fri, 11 Sep 2015 23:42:39 +0000 (16:42 -0700)]
Merge tag 'media/v4.3-2' of git://git./linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
"A series of patches that move part of the code used to allocate memory
from the media subsystem to the mm subsystem"
[ The mm parts have been acked by VM people, and the series was
apparently in -mm for a while - Linus ]
* tag 'media/v4.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] drm/exynos: Convert g2d_userptr_get_dma_addr() to use get_vaddr_frames()
[media] media: vb2: Remove unused functions
[media] media: vb2: Convert vb2_dc_get_userptr() to use frame vector
[media] media: vb2: Convert vb2_vmalloc_get_userptr() to use frame vector
[media] media: vb2: Convert vb2_dma_sg_get_userptr() to use frame vector
[media] vb2: Provide helpers for mapping virtual addresses
[media] media: omap_vout: Convert omap_vout_uservirt_to_phys() to use get_vaddr_pfns()
[media] mm: Provide new get_vaddr_frames() helper
[media] vb2: Push mmap_sem down to memops
Linus Torvalds [Fri, 11 Sep 2015 23:21:12 +0000 (16:21 -0700)]
Merge tag 'edac/v4.3-1' of git://git./linux/kernel/git/mchehab/linux-edac
Pull edac updates from Mauro Carvalho Chehab:
"Two EDAC fixes for Intel systems (Haswell and Ivy Bridge)"
* tag 'edac/v4.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac:
sb_edac: correctly fetch DIMM width on Ivy Bridge and Haswell
sb_edac: look harder for DDRIO on Haswell systems
Linus Torvalds [Fri, 11 Sep 2015 23:13:47 +0000 (16:13 -0700)]
Merge branch 'next' of git://git./linux/kernel/git/rzhang/linux
Pull thermal updates from Zhang Rui:
- use int instead of unsigned long to represent temperature to avoid
bogus overheat detection when negative temperature reported. From
Sascha Hauer.
- export available thermal governors information to user space via
sysfs. From Wei Ni.
- introduce new thermal driver for Wildcat Point platform controller
hub, which uses PCH thermal sensor and associated critical and hot
trip points. From Tushar Dave.
- add suuport for Intel Skylake and Denlow platforms in powerclamp
driver.
- some small cleanups in thermal core.
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
thermal: Add Intel PCH thermal driver
thermal: Add comment explaining test for critical temperature
thermal: Use IS_ENABLED instead of #ifdef
thermal: remove unnecessary call to thermal_zone_device_set_polling
thermal: trivial: fix typo in comment
thermal: consistently use int for temperatures
thermal: add available policies sysfs attribute
thermal/powerclamp: add cpu id for denlow platform
thermal/powerclamp: add cpu id for Skylake u/y
thermal/powerclamp: add cpu id for skylake h/s
Jagan Teki [Wed, 19 Aug 2015 09:56:44 +0000 (15:26 +0530)]
mtd: spi-nor: Zap unneeded write_enable from write_reg
The 'write_enable' argument is unused and unneeded, so remove it from
the API.
Signed-off-by: Jagan Teki <jteki@openedev.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Han Xu <han.xu@freescale.com>
[Brian: fixed for nxp-spifi.c]
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Jagan Teki [Wed, 19 Aug 2015 09:56:43 +0000 (15:26 +0530)]
mtd: spi-nor: Use write_sr for write status
Use existing write_sr() call instead of decoding and
calling nor->write_reg separately.
Signed-off-by: Jagan Teki <jteki@openedev.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Boris BREZILLON [Wed, 2 Sep 2015 08:30:25 +0000 (10:30 +0200)]
mtd: nand: sunxi: rely on nand_dt_init initialization
nand_dt_init(), called from nand_scan_ident(), is already parsing the
generic MTD/NAND DT properties, and initializing the nand_chip struct
accordingly.
Rely on this initialization instead of manually parsing those properties.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[Brian: rename 'np' -> 'flash_node' to accomodate for prior rename patch]
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Marek Vasut [Thu, 3 Sep 2015 16:35:37 +0000 (18:35 +0200)]
mtd: nand: Rename nand_chip .dn to .flash_node
Use a more descriptive name for the device_node element in struct nand_chip .
This name matches the element name used for device_node property of a flash
in the spi-nor framework.
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Marek Vasut [Thu, 3 Sep 2015 16:35:36 +0000 (18:35 +0200)]
mtd: spi-nor: Decouple SPI NOR's device_node from controller device
The problem this patch is trying to address is such, that SPI NOR flash
devices attached to a dedicated SPI NOR controller cannot read their
properties from the associated struct device_node.
A couple of facts first:
1) Each SPI NOR flash has a struct spi_nor associated with it.
2) Each SPI NOR flash has certain device properties associated
with it, for example the OF property 'm25p,fast-read' is a
good pick. These properties are used by the SPI NOR core to
select which opcodes are sent to such SPI NOR flash. These
properties are coming from spi_nor .dev->of_node .
The problem is, that for SPI NOR controllers, the struct spi_nor .dev
element points to the struct device of the SPI NOR controller, not the
SPI NOR flash. Therefore, the associated dev->of_node also is the
one of the controller and therefore the SPI NOR core code is trying to
parse the SPI NOR controller's properties, not the properties of the
SPI NOR flash.
Note: The m25p80 driver is not affected, because the controller and
the flash are the same device, so the associated device_node
of the controller and the flash are the same.
This patch adjusts the SPI NOR core such that the device_node is not
picked from spi_nor .dev directly, but from a new separate spi_nor
.flash_node element. This let's the SPI NOR controller drivers set up
a different spi_nor .flash_node element for each SPI NOR flash.
This patch also fixes the controller drivers to be compatible with
this modification and correctly set the spi_nor .flash_node element.
This patch is inspired by
5844feeaa4154d1c46d3462c7a4653d22356d8b4
mtd: nand: add common DT init code
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Andrew Morton [Fri, 11 Sep 2015 20:07:53 +0000 (13:07 -0700)]
revert "ocfs2/dlm: use list_for_each_entry instead of list_for_each"
Revert commit
f83c7b5e9fd6 ("ocfs2/dlm: use list_for_each_entry instead
of list_for_each").
list_for_each_entry() will dereference its `pos' argument, which can be
NULL in dlm_process_recovery_data().
Reported-by: Julia Lawall <julia.lawall@lip6.fr>
Reported-by: Fengguang Wu <fengguang.wu@gmail.com>
Cc: Joseph Qi <joseph.qi@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ard Biesheuvel [Fri, 11 Sep 2015 20:07:50 +0000 (13:07 -0700)]
mm/early_ioremap: add explicit #include of asm/early_ioremap.h
Commit
6b0f68e32ea8 ("mm: add utility for early copy from unmapped ram")
introduces a function copy_from_early_mem() into mm/early_ioremap.c
which itself calls early_memremap()/early_memunmap(). However, since
early_memunmap() has not been declared yet at this point in the .c file,
nor by any explicitly included header files, we are depending on a
transitive include of asm/early_ioremap.h to declare it, which is
fragile.
So instead, include this header explicitly.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Joe Perches [Fri, 11 Sep 2015 20:07:48 +0000 (13:07 -0700)]
fs/seq_file: convert int seq_vprint/seq_printf/etc... returns to void
The seq_<foo> function return values were frequently misused.
See: commit
1f33c41c03da ("seq_file: Rename seq_overflow() to
seq_has_overflowed() and make public")
All uses of these return values have been removed, so convert the
return types to void.
Miscellanea:
o Move seq_put_decimal_<type> and seq_escape prototypes closer the
other seq_vprintf prototypes
o Reorder seq_putc and seq_puts to return early on overflow
o Add argument names to seq_vprintf and seq_printf
o Update the seq_escape kernel-doc
o Convert a couple of leading spaces to tabs in seq_escape
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>