01 Dec, 2011
2 commits
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NAND read path for BCH8 is corrected to handle reading of erased pages.
Previously on nand read, ecc was taken from wrong offset in oob_poi buffer
and was giving non-0xff data and hence was giving ecc uncorrectable issue
on erased pages.Signed-off-by: Philip, Avinash
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This patch removes the check for unaligned size, on reading from NAND
flash. Previously size check was inserted in order to avoid error
correction handling of non-aligned length of page size.Signed-off-by: Philip, Avinash
28 Nov, 2011
4 commits
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14 bytes of ECC is provided for every 512 byte even though 13 byte is the
actual requirement. This is to synchronize the ECC layout with U-boot.
Extra byte is cleared to 0.Signed-off-by: Philip, Avinash
Signed-off-by: Hebbar, Gururaja -
1. BCH8 ECC support is enabled.
2. Support for BCH8 error correction using ELM module is added.
3. ECC positions updated for BCH8 in synchronized with U-boot.
4. Corrected GPMC settings for BCH8 ECC scheme.Signed-off-by: Philip, Avinash
Signed-off-by: Hebbar, Gururaja -
GPL module license is added to remove warnings on inserting as module.
Signed-off-by: Philip, Avinash
Signed-off-by: Hebbar, Gururaja -
bch error correction (t=4 and t=8) for 512 bytes support added.
Tested in omap-3630 es-1.1 silicon.Need to select the bch-ecc from board file. E.g.
arch/arm/mach-omap2/board-flash.c: board_nand_init()
board_nand_data.ecc_opt = OMAP_ECC_BCH4_CODE_HWThis patch has dependency on -
http://www.mail-archive.com/linux-omap@vger.kernel.org/msg42658.htmlSigned-off-by: Parth Mauria Saxena
Signed-off-by: Sukumar Ghorai
Signed-off-by: Sriramakrishnan A G
Signed-off-by: Abhilash K V
Signed-off-by: Philip, Avinash
Signed-off-by: Hebbar, Gururaja
28 Oct, 2011
3 commits
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JFFS2 clean marker offset used by Linux in case of 8-bit NAND device is
0x1 omap2 NAND driver. But 1st 2 bytes is used to indicate bad blocks by
manufacturers. So offset for JFFS2 clean markers is fixed to 0x2 in
omap2 NAND driver irrespective of 8/16 bit device.
Introduced new macro : JFFS2_CLEAN_MARKER_OFFSET to indicate 0x2 offset
for JFFS2 clean marker.Signed-off-by: Philip, Avinash
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For OOb_64, offset is fixed to 40 for kernel/fs, by changing
kernel code to calculate hw_ecc layout considering these:
1) 12 bytes in case of 512 byte access and 24 bytes in case of 256 byte
access in OOB_64 can be supported.
2) Ecc bytes lie to the end of OOB area.
Introducing a new macro : MAX_HWECC_BYTES_OOB_64 which is the maximum
number of eccbytes supported for OOB_64n Hamming ECC mode.Signed-off-by: Hrishikesh Bhandiwad
Signed-off-by: Philip, Avinash -
NAND ECC layout is updated in case of Hardware ECC scheme selection from
platform data.
ECC scheme to be used is indicated via the platform data in the board file.Signed-off-by: Philip, Avinash
27 Oct, 2011
1 commit
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OMAP2 NAND driver does not release memory region
in the remove API hence loadable module support for
OMAP2 NAND driver was broken. This patch releases
memory region in the remove API.Signed-off-by: Basheer, Mansoor Ahamed
Signed-off-by: Philip, Avinash
20 Aug, 2011
1 commit
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Michal Marek spotted the same issue in UBIFS and this patch fixes UBI,
see "UBIFS: not build debug messages with CONFIG_UBIFS_FS_DEBUG disabled"When UBI debugging is disabled, we have debugging messages defined as:
if (0)
pr_debug()But pr_debug macro defines data structures with debugging data and makes
the linux binary larger, even though we have "if (0)".Signed-off-by: Artem Bityutskiy
26 Jul, 2011
1 commit
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits)
fs: Merge split strings
treewide: fix potentially dangerous trailing ';' in #defined values/expressions
uwb: Fix misspelling of neighbourhood in comment
net, netfilter: Remove redundant goto in ebt_ulog_packet
trivial: don't touch files that are removed in the staging tree
lib/vsprintf: replace link to Draft by final RFC number
doc: Kconfig: `to be' -> `be'
doc: Kconfig: Typo: square -> squared
doc: Konfig: Documentation/power/{pm => apm-acpi}.txt
drivers/net: static should be at beginning of declaration
drivers/media: static should be at beginning of declaration
drivers/i2c: static should be at beginning of declaration
XTENSA: static should be at beginning of declaration
SH: static should be at beginning of declaration
MIPS: static should be at beginning of declaration
ARM: static should be at beginning of declaration
rcu: treewide: Do not use rcu_read_lock_held when calling rcu_dereference_check
Update my e-mail address
PCIe ASPM: forcedly -> forcibly
gma500: push through device driver tree
...Fix up trivial conflicts:
- arch/arm/mach-ep93xx/dma-m2p.c (deleted)
- drivers/gpio/gpio-ep93xx.c (renamed and context nearby)
- drivers/net/r8169.c (just context changes)
24 Jul, 2011
1 commit
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For a number of file systems that don't have a mount point (e.g. sockfs
and pipefs), they are not marked as long term. Therefore in
mntput_no_expire, all locks in vfs_mount lock are taken instead of just
local cpu's lock to aggregate reference counts when we release
reference to file objects. In fact, only local lock need to have been
taken to update ref counts as these file systems are in no danger of
going away until we are ready to unregister them.The attached patch marks file systems using kern_mount without
mount point as long term. The contentions of vfs_mount lock
is now eliminated. Before un-registering such file system,
kern_unmount should be called to remove the long term flag and
make the mount point ready to be freed.Signed-off-by: Tim Chen
Signed-off-by: Al Viro
23 Jul, 2011
3 commits
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (107 commits)
vfs: use ERR_CAST for err-ptr tossing in lookup_instantiate_filp
isofs: Remove global fs lock
jffs2: fix IN_DELETE_SELF on overwriting rename() killing a directory
fix IN_DELETE_SELF on overwriting rename() on ramfs et.al.
mm/truncate.c: fix build for CONFIG_BLOCK not enabled
fs:update the NOTE of the file_operations structure
Remove dead code in dget_parent()
AFS: Fix silly characters in a comment
switch d_add_ci() to d_splice_alias() in "found negative" case as well
simplify gfs2_lookup()
jfs_lookup(): don't bother with . or ..
get rid of useless dget_parent() in btrfs rename() and link()
get rid of useless dget_parent() in fs/btrfs/ioctl.c
fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers
drivers: fix up various ->llseek() implementations
fs: handle SEEK_HOLE/SEEK_DATA properly in all fs's that define their own llseek
Ext4: handle SEEK_HOLE/SEEK_DATA generically
Btrfs: implement our own ->llseek
fs: add SEEK_HOLE and SEEK_DATA flags
reiserfs: make reiserfs default to barrier=flush
...Fix up trivial conflicts in fs/xfs/linux-2.6/xfs_super.c due to the new
shrinker callout for the inode cache, that clashed with the xfs code to
start the periodic workers later. -
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1287 commits)
icmp: Fix regression in nexthop resolution during replies.
net: Fix ppc64 BPF JIT dependencies.
acenic: include NET_SKB_PAD headroom to incoming skbs
ixgbe: convert to ndo_fix_features
ixgbe: only enable WoL for magic packet by default
ixgbe: remove ifdef check for non-existent define
ixgbe: Pass staterr instead of re-reading status and error bits from descriptor
ixgbe: Move interrupt related values out of ring and into q_vector
ixgbe: add structure for containing RX/TX rings to q_vector
ixgbe: inline the ixgbe_maybe_stop_tx function
ixgbe: Update ATR to use recorded TX queues instead of CPU for routing
igb: Fix for DH89xxCC near end loopback test
e1000: always call e1000_check_for_link() on e1000_ce4100 MACs.
netxen: add fw version compatibility check
be2net: request native mode each time the card is reset
ipv4: Constrain UFO fragment sizes to multiples of 8 bytes
virtio_net: Fix panic in virtnet_remove
ipv6: make fragment identifications less predictable
ipv6: unshare inetpeers
can: make function can_get_bittiming static
... -
* 'linux-next' of git://git.infradead.org/ubi-2.6:
UBI: clarify the volume notification types' doc
UBI: remove dead code
UBI: dump stack when switching to R/O mode
UBI: fix oops in error path
UBI: switch debugging tests knobs to debugfs
UBI: make it possible to use struct ubi_device in debug.h
UBI: prepare debugging stuff to further debugfs conversion
UBI: use debugfs for the extra checks knobs
UBI: change the interface of a debugging check function
21 Jul, 2011
1 commit
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Btrfs needs to be able to control how filemap_write_and_wait_range() is called
in fsync to make it less of a painful operation, so push down taking i_mutex and
the calling of filemap_write_and_wait() down into the ->fsync() handlers. Some
file systems can drop taking the i_mutex altogether it seems, like ext3 and
ocfs2. For correctness sake I just pushed everything down in all cases to make
sure that we keep the current behavior the same for everybody, and then each
individual fs maintainer can make up their mind about what to do from there.
Thanks,Acked-by: Jan Kara
Signed-off-by: Josef Bacik
Signed-off-by: Al Viro
11 Jul, 2011
1 commit
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Sync with Linus' tree to be able to apply pending patches that
are based on newer code already present upstream.
06 Jul, 2011
1 commit
22 Jun, 2011
2 commits
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when nand_get_flash_type() is called, it will read 8 bytes of ID instead of 5,
but the driver only read 5 bytes, so kernel will dump error messages like:fsl-lbc ffe124000.localbus: read_byte beyond end of buffer
fsl-lbc ffe124000.localbus: read_byte beyond end of buffer
fsl-lbc ffe124000.localbus: read_byte beyond end of bufferSigned-off-by: Shaohui Xie
Acked-by: Scott Wood
Signed-off-by: Kumar Gala -
Remove linux/mm.h inclusion from netdevice.h -- it's unused (I've checked manually).
To prevent mm.h inclusion via other channels also extract "enum dma_data_direction"
definition into separate header. This tiny piece is what gluing netdevice.h with mm.h
via "netdevice.h => dmaengine.h => dma-mapping.h => scatterlist.h => mm.h".
Removal of mm.h from scatterlist.h was tried and was found not feasible
on most archs, so the link was cutoff earlier.Hope people are OK with tiny include file.
Note, that mm_types.h is still dragged in, but it is a separate story.
Signed-off-by: Alexey Dobriyan
Signed-off-by: David S. Miller
16 Jun, 2011
1 commit
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I no longer work at Bluewater Systems. Update my email address accordingly. I
have deleted my email address from C files rather than change it. This
was suggested by several people, since the commit from my new email
address will cause scripts/get_maintainer.pl to function properly. I
have not added the .mailmap entry as suggested by Joe because I think
it is no longer necessary if I touch all the files which had my name
in them.Signed-off-by: Ryan Mallon
Cc: Andre Renaud
Cc: H Hartley Sweeten
Cc: Russell King
Cc: Nicolas Ferre
Cc: Andrew Victor
Cc: David Woodhouse
Cc: Anton Vorontsov
Cc: Paul Mundt
Cc: Liam Girdwood
Cc: Mark Brown
Cc: Alan Cox
Cc: Joe Perches
Cc: Jesper Juhl
Cc: Andrew Morton
Cc: trivial@kernel.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Jesper Juhl
Signed-off-by: Jiri Kosina
10 Jun, 2011
1 commit
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Several fixes as well where the +1 was missing.
Done via coccinelle scripts like:
@@
struct resource *ptr;
@@- ptr->end - ptr->start + 1
+ resource_size(ptr)and some grep and typing.
Mostly uncompiled, no cross-compilers.
Signed-off-by: Joe Perches
Signed-off-by: Jiri Kosina
07 Jun, 2011
1 commit
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Thanks to new gcc 4.6 for issuing the following warning:
drivers/mtd/ubi/vtbl.c: In function ‘create_vtbl’:
drivers/mtd/ubi/vtbl.c:311:33: warning: variable ‘old_seb’ set but not used [-Wunused-but-set-variable]This patch removes some dead code and fixes the warning.
Signed-off-by: Artem Bityutskiy
01 Jun, 2011
6 commits
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If we have debugging enabled and switching to R/O mode because of an error -
dump the stack to improve UBI error reporting and make the further diagnostics
easier to do.Signed-off-by: Artem Bityutskiy
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This patch fixes an oops in the error path of 'ubi_attach_mtd_dev()'. If
anything after 'uif_init()' fails, we get an oops in 'cancel_pending()'. The
reason is that 'uif_close()' drops the last reference count for 'ubi->dev' and
whole 'struct ubi_device' is freed. And then
'ubi_wl_close()'->'cancel_pending()' tries to access the 'ubi' pointer and
problems begin.Note, in 'ubi_detach_mtd_dev()' function we get a device reference to
work-around this issue. Do the same in the error path of
'ubi_attach_mtd_dev()'.Signed-off-by: Artem Bityutskiy
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Kill the UBI 'debug_tsts' module parameter and switch to debugfs. Create
per-test mode files there. E.g., to enable bit-flips emulation you may just do:echo 1 > /sys/kernel/debug/ubi/ubi0/tst_emulate_bitflips
Signed-off-by: Artem Bityutskiy
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Current layout does not allow us to add inline functions to debug.h which use
the 'struct ubi_device' object, because it is undefined there. Move
'#include "debug.h"' in "ubi.h" down so to make 'struct ubi_device" be defined.
Additionally, this makes it possible to remove a bunch of forward declarations
in "debug.h". This is a preparation to the next patch.Signed-off-by: Artem Bityutskiy
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We'll need the 'struct ubi_device *ubi' pointer in every debugging function (to
access the ->dbg field), so add this pointer to all the functions implementing
UBI debugging test modes like 'ubi_dbg_is_bitflip()' etc.Signed-off-by: Artem Bityutskiy
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This patch introduces debugfs support to UBI. All the UBI stuff is kept in the
"ubi" debugfs directory, which contains per-UBI device "ubi/ubiX"
sub-directories, containing debugging files. This file also creates
"ubi/ubiX/chk_gen" and "ubi/ubiX/chk_io" knobs for switching general and I/O
extra checks on and off. And it removes the 'debug_chks' UBI module parameters.Signed-off-by: Artem Bityutskiy
31 May, 2011
1 commit
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This is a minor preparational patch which changes the
'paranoid_check_in_wl_tree()' function interface by adding the 'ubi' parameter
which will be needed there in the next patch.And while on it, add "const" qualifier to the 'ubi' parameter of the
'paranoid_check_in_pq()' function.Signed-off-by: Artem Bityutskiy
28 May, 2011
1 commit
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* git://git.infradead.org/mtd-2.6: (97 commits)
mtd: kill CONFIG_MTD_PARTITIONS
mtd: remove add_mtd_partitions, add_mtd_device and friends
mtd: convert remaining users to mtd_device_register()
mtd: samsung onenand: convert to mtd_device_register()
mtd: omap2 onenand: convert to mtd_device_register()
mtd: txx9ndfmc: convert to mtd_device_register()
mtd: tmio_nand: convert to mtd_device_register()
mtd: socrates_nand: convert to mtd_device_register()
mtd: sharpsl: convert to mtd_device_register()
mtd: s3c2410 nand: convert to mtd_device_register()
mtd: ppchameleonevb: convert to mtd_device_register()
mtd: orion_nand: convert to mtd_device_register()
mtd: omap2: convert to mtd_device_register()
mtd: nomadik_nand: convert to mtd_device_register()
mtd: ndfc: convert to mtd_device_register()
mtd: mxc_nand: convert to mtd_device_register()
mtd: mpc5121_nfc: convert to mtd_device_register()
mtd: jz4740_nand: convert to mtd_device_register()
mtd: h1910: convert to mtd_device_register()
mtd: fsmc_nand: convert to mtd_device_register()
...Fixed up trivial conflicts in
- drivers/mtd/maps/integrator-flash.c: removed in ARM tree
- drivers/mtd/maps/physmap.c: addition of afs partition probe type
clashing with removal of CONFIG_MTD_PARTITIONS
27 May, 2011
1 commit
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With the addition of the platform device mfd_cell pointer, we can now
cleanly pass the sub device drivers platform data pointers through the
regular device platform_data one, and get rid of mfd_get_data().Cc: Ian Molton
Cc: Artem Bityutskiy
Acked-by: Dmitry Eremin-Solenikov
Signed-off-by: Samuel Ortiz
25 May, 2011
7 commits
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Now that none of the drivers use CONFIG_MTD_PARTITIONS we can remove
it from Kconfig and the last remaining uses.Signed-off-by: Jamie Iles
Signed-off-by: Artem Bityutskiy
Signed-off-by: David Woodhouse -
These symbols are replaced with mtd_device_register() (and removal with
mtd_device_unregister()) for public registration.Signed-off-by: Jamie Iles
Signed-off-by: Artem Bityutskiy
Signed-off-by: David Woodhouse -
The older add_mtd_device()/add_mtd_partitions() and their removal
counterparts will soon be gone. Replace uses with mtd_device_register()
and mtd_device_unregister().Signed-off-by: Jamie Iles
Signed-off-by: Artem Bityutskiy
Signed-off-by: David Woodhouse -
Convert to mtd_device_register() and remove the CONFIG_MTD_PARTITIONS
preprocessor conditionals as partitioning is always available.Cc: Kyungmin Park
Signed-off-by: Jamie Iles
Signed-off-by: Artem Bityutskiy
Signed-off-by: David Woodhouse -
Convert to mtd_device_register() and remove the CONFIG_MTD_PARTITIONS
preprocessor conditionals as partitioning is always available.Cc: Kyungmin Park
Signed-off-by: Jamie Iles
Signed-off-by: Artem Bityutskiy
Signed-off-by: David Woodhouse -
Convert to mtd_device_register() and remove the CONFIG_MTD_PARTITIONS
preprocessor conditionals as partitioning is always available.Signed-off-by: Jamie Iles
Signed-off-by: Artem Bityutskiy
Signed-off-by: David Woodhouse -
Convert to mtd_device_register() and remove the CONFIG_MTD_PARTITIONS
preprocessor conditionals as partitioning is always available.Signed-off-by: Jamie Iles
Signed-off-by: Artem Bityutskiy
Signed-off-by: David Woodhouse
