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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (37 commits)
net: deinit automatic LIST_HEAD
net: dont leave active on stack LIST_HEAD
net: provide default_advmss() methods to blackhole dst_ops
tg3: Restrict phy ioctl access
drivers/net: Call netif_carrier_off at the end of the probe
ixgbe: work around for DDP last buffer size
ixgbe: fix panic due to uninitialised pointer
e1000e: flush all writebacks before unload
e1000e: check down flag in tasks
isdn: hisax: Use l2headersize() instead of dup (and buggy) func.
arp_notify: unconditionally send gratuitous ARP for NETDEV_NOTIFY_PEERS.
cxgb4vf: Use defined Mailbox Timeout
cxgb4vf: Quiesce Virtual Interfaces on shutdown ...
cxgb4vf: Behave properly when CONFIG_DEBUG_FS isn't defined ...
cxgb4vf: Check driver parameters in the right place ...
pch_gbe: Fix the MAC Address load issue.
iwlwifi: Delete iwl3945_good_plcp_health.
net/can/softing: make CAN_SOFTING_CS depend on CAN_SOFTING
netfilter: nf_iterate: fix incorrect RCU usage
pch_gbe: Fix the issue that the receiving data is not normal.
...
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* 'for-linus/bugfixes' of git://xenbits.xen.org/people/ianc/linux-2.6:
xen: suspend and resume system devices when running PVHVM
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* 'fixes-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: make sure MAYDAY_INITIAL_TIMEOUT is at least 2 jiffies long
workqueue, freezer: unify spelling of 'freeze' + 'able' to 'freezable'
workqueue: wake up a worker when a rescuer is leaving a gcwq
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commit 9b5e383c11b08784 (net: Introduce
unregister_netdevice_many()) left an active LIST_HEAD() in
rollback_registered(), with possible memory corruption.
Even if device is freed without touching its unreg_list (and therefore
touching the previous memory location holding LISTE_HEAD(single), better
close the bug for good, since its really subtle.
(Same fix for default_device_exit_batch() for completeness)
Reported-by: Michal Hocko <mhocko@suse.cz>
Tested-by: Michal Hocko <mhocko@suse.cz>
Reported-by: Eric W. Biderman <ebiderman@xmission.com>
Tested-by: Eric W. Biderman <ebiderman@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Ingo Molnar <mingo@elte.hu>
CC: Octavian Purdila <opurdila@ixiacom.com>
CC: stable <stable@kernel.org> [.33+]
Signed-off-by: David S. Miller <davem@davemloft.net>
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Eric W. Biderman and Michal Hocko reported various memory corruptions
that we suspected to be related to a LIST head located on stack, that
was manipulated after thread left function frame (and eventually exited,
so its stack was freed and reused).
Eric Dumazet suggested the problem was probably coming from commit
443457242beb (net: factorize
sync-rcu call in unregister_netdevice_many)
This patch fixes __dev_close() and dev_close() to properly deinit their
respective LIST_HEAD(single) before exiting.
References: https://lkml.org/lkml/2011/2/16/304
References: https://lkml.org/lkml/2011/2/14/223
Reported-by: Michal Hocko <mhocko@suse.cz>
Tested-by: Michal Hocko <mhocko@suse.cz>
Reported-by: Eric W. Biderman <ebiderman@xmission.com>
Tested-by: Eric W. Biderman <ebiderman@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Ingo Molnar <mingo@elte.hu>
CC: Octavian Purdila <opurdila@ixiacom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit 0dbaee3b37e118a (net: Abstract default ADVMSS behind an
accessor.) introduced a possible crash in tcp_connect_init(), when
dst->default_advmss() is called from dst_metric_advmss()
Reported-by: George Spelvin <linux@horizon.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When list debugging is enabled, we aim to readably show list corruption
errors, and the basic list_add/list_del operations end up having extra
debugging code in them to do some basic validation of the list entries.
However, "list_del_init()" and "list_move[_tail]()" ended up avoiding
the debug code due to how they were written. This fixes that.
So the _next_ time we have list_move() problems with stale list entries,
we'll hopefully have an easier time finding them..
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
PM / Hibernate: Return error code when alloc_image_page() fails
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* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm/radeon/kms: add missing frac fb div flag for dce4+
drm/radeon/kms: do not reject X16 and Y16X16 floating-point formats on r300
drm/nouveau: fix suspend/resume on GPUs that don't have PM support
drm/nouveau: flips/flipd need to always set 'evict' for move_accel_cleanup()
drm/nv40: fix tiling-related setup for a number of chipsets
drm/nouveau: fix non-EDIDful native mode selection
drm/nouveau: Fix detection of DDC-based LVDS on DCB15 boards.
drm/nv04-nv40: Fix NULL dereference when we fail to find an LVDS native mode.
drm/nv10: Fix crash when allocating a BO larger than half the available VRAM.
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB/qib: Prevent double completions after a timeout or RNR error
IB/qib: Fix double add_timer()
RDMA/nes: Don't generate async events for unregistered devices
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc64: Fix NMI startup bug which also breaks perf.
sparc: fix size argument to find_next_zero_bit()
sparc: use bitmap_set()
sparc32: unaligned memory access (MNA) trap handler bug
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Validate number of blocks in map and remove redundant variable.
Signed-off-by: Timo Warns <warns@pre-sense.de>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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If management firmware is present and the device is down, the firmware
will assume control of the phy. If a phy access were allowed from the
host, it will collide with firmware phy accesses, resulting in
unpredictable behavior. This patch fixes the problem by disallowing phy
accesses during the problematic condition.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Without calling of netif_carrier_off at the end of the probe the operstate
is unknown when the device is initially opened. By default the carrier is
on so when the device is opened and netif_carrier_on is called the link
watch event is not fired and operstate remains zero (unknown).
This patch fixes this behavior in forcedeth and r8169.
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There is a double completion associated with error handling for RC QPs.
The sequence is:
- The do_rc_ack() routine fields an RNR nack and there are 0
rnr_retries configured on the QP.
- qib_error_qp() stops the pending timer
- qib_rc_send_complete() is called from sdma_complete()
- qib_rc_send_complete() starts the timer because the msb of the psn
just completed says an ack is needed.
- a bunch of flushes occur as ipoib posts WQEs to an error'ed QP
- rc_timeout() calls qib_restart_rc()
- qib_restart_rc() calls qib_send_complete() with a
IB_WC_RETRY_EXC_ERR on a wqe that has already been completed in the
past
The fix avoids starting the timer since another packet will never
arrive.
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Otherwise we fail to properly suspend/resume all of the emulated devices.
Something between 2.6.38-rc2 and rc3 appears to have exposed this
issue, but it's always been wrong not to do this.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Jeremy Fitzhardinge <jeremy@goop.org>
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A HW limitation was recently discovered where the last buffer in a DDP offload
cannot be a full buffer size in length. Fix the issue with a work around by
adding another buffer with size = 1.
Signed-off-by: Amir Hanania <amir.hanania@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Systems containing an 82599EB and running a backported driver from
upstream were panicing on boot. It turns out hw->mac.ops.setup_sfp is
only set for 82599, so one should check to be sure that pointer is set
before continuing in ixgbe_sfp_config_module_task. I verified by
inspection that the upstream driver has the same issue and also added a
check before the call in ixgbe_sfp_link_config.
Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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The driver was not flushing all writebacks before unloading, possibly
causing memory to be written by the hardware after the driver had
reinitialized the rings.
This adds missing functionality to flush any pending writebacks and is
called in all spots where descriptors should be completed before the driver
begins processing.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Reviewed-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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This change is part of a fix to avoid any tasks running while the driver is
exiting and deinitializing resources.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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* 'for-2.6.38' of git://linux-nfs.org/~bfields/linux:
nfsd: correctly handle return value from nfsd_map_name_to_*
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* 'nouveau/drm-nouveau-next' of /ssd/git/drm-nouveau-next:
drm/nouveau: fix suspend/resume on GPUs that don't have PM support
drm/nouveau: flips/flipd need to always set 'evict' for move_accel_cleanup()
drm/nv40: fix tiling-related setup for a number of chipsets
drm/nouveau: fix non-EDIDful native mode selection
drm/nouveau: Fix detection of DDC-based LVDS on DCB15 boards.
drm/nv04-nv40: Fix NULL dereference when we fail to find an LVDS native mode.
drm/nv10: Fix crash when allocating a BO larger than half the available VRAM.
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The fixed ref/post dividers are set by the AdjustPll table
rather than the ss info table on dce4+. Make sure we enable
the fractional feedback dividers when using a fixed post
or ref divider on them as well.
Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=29272
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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This has been broken since 2.6.37, and fixes resume on a couple of fermi
boards I have access to.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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* 'spi/merge' of git://git.secretlab.ca/git/linux-2.6:
spi/pxa2xx pci: fix the release - remove race
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This reverts commit 75f1dc0d076d ("block: check bdev_read_only() from
blkdev_get()"). That commit added stricter checking to make sure
devices that were being used read-only were actually opened in that
mode.
It turns out that the change breaks a bunch of kernel code that opens
block devices. Affected systems include dm, md, and the loop device.
Because strict checking for read-only opens of block devices was not
done before this, the code that opens the devices was opening them
read-write even if they were being used read-only. Auditing all that
code will take time, and new userspace packages for dm, mdadm, etc.
will also be required.
Signed-off-by: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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We free the temporary binding before leaving this function, so we also have
to wait for the move to actually complete.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Due to the default case handling the older chipsets, a bunch of the newer
ones ended up having the wrong tiling regs used. This commit switches the
default case to handle the newest chipsets.
This also makes nv4e touch the "extra" tiling regs. "nv" doesn't touch
them for C51 but traces of the NVIDIA binary driver show it being done
there.
I couldn't find NV41/NV45 traces to confirm the behaviour there, but an
educated guess was taken at each of them.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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The DRM core fills this value, but at too late a stage for this to work,
possibly resulting in an undesirable mode being selected.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Reported-by: Alex Buell <alex.buell@munted.org.uk>
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Reported-by: Alex Buell <alex.buell@munted.org.uk>
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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These functions return an nfs status, not a host_err. So don't
try to convert before returning.
This is a regression introduced by
3c726023402a2f3b28f49b9d90ebf9e71151157d; I fixed up two of the callers,
but missed these two.
Cc: stable@kernel.org
Reported-by: Herbert Poetzl <herbert@13thfloor.at>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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Currently we return 0 in swsusp_alloc() when alloc_image_page() fails.
Fix that. Also remove unneeded "error" variable since the only
useful value of error is -ENOMEM.
[rjw: Fixed up the changelog and changed subject.]
Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Cc: stable@kernel.org
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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MAYDAY_INITIAL_TIMEOUT is defined as HZ / 100 and depending on
configuration may end up 0 or 1. Even when it's 1, depending on when
the mayday timer is added in the current jiffy interval, it may expire
way before a jiffy has passed.
Make sure MAYDAY_INITIAL_TIMEOUT is at least two to guarantee that at
least a full jiffy has passed before calling rescuers.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Ray Jui <rjui@broadcom.com>
Cc: stable@kernel.org
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* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
[SCSI] qla2xxx: Return DID_NO_CONNECT when FC device is lost.
[SCSI] mptfusion: Bump version 03.04.18
[SCSI] mptfusion: Fix Incorrect return value in mptscsih_dev_reset
[SCSI] mptfusion: mptctl_release is required in mptctl.c
[SCSI] target: fix use after free detected by SLUB poison
[SCSI] target: Remove procfs based target_core_mib.c code
[SCSI] target: Fix SCF_SCSI_CONTROL_SG_IO_CDB breakage
[SCSI] target: Fix top-level configfs_subsystem default_group shutdown breakage
[SCSI] target: fixed missing lock drop in error path
[SCSI] target: Fix demo-mode MappedLUN shutdown UA/PR breakage
[SCSI] target/iblock: Fix failed bd claim NULL pointer dereference
[SCSI] target: iblock/pscsi claim checking for NULL instead of IS_ERR
[SCSI] scsi_debug: Fix 32-bit overflow in do_device_access causing memory corruption
[SCSI] qla2xxx: Change from irq to irqsave with host_lock
[SCSI] qla2xxx: Fix race that could hang kthread_stop()
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* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: sha-s390 - Reset index after processing partial block
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When Al moved the nameidata_dentry_drop_rcu_maybe() call into the
do_follow_link function in commit 844a391799c2 ("nothing in
do_follow_link() is going to see RCU"), he mistakenly left the
BUG_ON(inode != path->dentry->d_inode);
behind. Which would otherwise be ok, but that BUG_ON() really needs to
be _after_ dropping RCU, since the dentry isn't necessarily stable
otherwise.
So complete the code movement in that commit, and move the BUG_ON() into
do_follow_link() too. This means that we need to pass in 'inode' as an
argument (just for this one use), but that's a small thing. And
eventually we may be confident enough in our path lookup that we can
just remove the BUG_ON() and the unnecessary inode argument.
Reported-and-tested-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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There are two spellings in use for 'freeze' + 'able' - 'freezable' and
'freezeable'. The former is the more prominent one. The latter is
mostly used by workqueue and in a few other odd places. Unify the
spelling to 'freezable'.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: "Rafael J. Wysocki" <rjw@sisk.pl>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Alex Dubov <oakad@yahoo.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Steven Whitehouse <swhiteho@redhat.com>
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68knommu: set flow handler for secondary interrupt controller of 5249
m68knommu: remove use of IRQ_FLG_LOCK from 68360 platform support
m68knommu: fix dereference of port.tty
m68knommu: add missing linker __modver section
m68knommu: fix mis-named variable int set_irq_chip loop
m68knommu: add optimize memmove() function
m68k: remove arch specific non-optimized memcmp()
m68knommu: fix use of un-defined _TIF_WORK_MASK
m68knommu: Rename m548x_wdt.c to m54xx_wdt.c
m68knommu: fix m548x_wdt.c compilation after headers renaming
m68knommu: Remove dependencies on nonexistent M68KNOMMU
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The secondary interrupt controller of the ColdFire 5249 code is not
setting the edge triggered flow handler. Set it.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
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The m68knommu arch does not define or use IRQ_FLG_LOCK in its irq
subsystem. Remove obsolete use of it.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
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The struct_tty associated with a port is now a direct pointer
from within the local private driver info struct. So fix all uses
of it.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
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Add missing linker section __modver to fix:
LD vmlinux
/usr/local/bin/../m68k-uclinux/bin/ld.real: error: no memory region specified for loadable section `__modver'
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
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Compiling for 68360 targets gives:
CC arch/m68knommu/platform/68360/ints.o
arch/m68knommu/platform/68360/ints.c: In function ‘init_IRQ’:
arch/m68knommu/platform/68360/ints.c:135:16: error: ‘irq’ undeclared (first use in this function)
arch/m68knommu/platform/68360/ints.c:135:16: note: each undeclared identifier is reported only once for each function it appears in
Fix variable name used.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
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Add an m68k/coldfire optimized memmove() function for the m68knommu arch.
This is the same function as used by m68k. Simple speed tests show this
is faster once buffers are larger than 4 bytes, and significantly faster
on much larger buffers (4 times faster above about 100 bytes).
This also goes part of the way to fixing a regression caused by commit
ea61bc461d09e8d331a307916530aaae808c72a2 ("m68k/m68knommu: merge MMU and
non-MMU string.h"), which breaks non-coldfire non-mmu builds (which is
the 68x328 and 68360 families). They currently have no memmove() fucntion
defined, since there was none in the m68knommu/lib functions.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
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The m68k arch implements its own memcmp() function. It is not optimized
in any way (it is the most strait forward coding of memcmp you can get).
Remove it and use the kernels standard memcmp() implementation.
This also goes part of the way to fixing a regression caused by commit
ea61bc461d09e8d331a307916530aaae808c72a2 ("m68k/m68knommu: merge MMU and
non-MMU string.h"), which breaks non-coldfire non-mmu builds (which is
the 68x328 and 68360 families). They currently have no memcmp() function
defined, since there is none in the m68knommu/lib functions.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
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Linus Torvalds
Eric Dumazet
Timo Warns
Matt Carlson
Ivan Vecera
Roland Dreier
Mike Marciniszyn
Ian Campbell
Amir Hanania
Andy Gospodarek
Jesse Brandeburg
Dave Airlie
Alex Deucher
Marek Olšák
Ben Skeggs
Chuck Ebbert
Francisco Jerez
NeilBrown
Stanislaw Gruszka
Tejun Heo
Greg Ungerer