| Commit message (Collapse) | Author | Age |
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* git://git.linux-nfs.org/pub/linux/nfs-2.6:
NLM,NFSv4: Wait on local locks before we put RPC calls on the wire
VFS: Add support for the FL_ACCESS flag to flock_lock_file()
NFSv4: Ensure nfs4_lock_expired() caches delegated locks
NLM,NFSv4: Don't put UNLOCK requests on the wire unless we hold a lock
VFS: Allow caller to determine if BSD or posix locks were actually freed
NFS: Optimise away an excessive GETATTR call when a file is symlinked
This fixes a panic doing the first READDIR or READDIRPLUS call when:
NFS: Fix NFS page_state usage
Revert "Merge branch 'odirect'"
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Use FL_ACCESS flag to test and/or wait for local locks before we try
requesting a lock from the server
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Use the new behaviour of {flock,posix}_file_lock(F_UNLCK) to determine if
we held a lock, and only send the RPC request to the server if this was the
case.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Change posix_lock_file_conf(), and flock_lock_file() so that if called
with an F_UNLCK argument, and the FL_EXISTS flag they will indicate
whether or not any locks were actually freed by returning 0 or -ENOENT.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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In the case when compiling via a symlink tree, we want to ensure that the
close-to-open GETATTR call is applied only to the final file, and not to
the symlink.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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* the client is ia64 or any platform that actually implements
flush_dcache_page(), and
* the server returns fsinfo.dtpref >= client's PAGE_SIZE, and
* the server does *not* return post-op attributes for the directory
in the READDIR reply.
Problem diagnosed by Greg Banks <gnb@melbourne.sgi.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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The introduction of the FLUSH_INVALIDATE argument to nfs_sync_inode_wait()
does not clear the nr_unstable page state counter for pages that are being
released.
Also fix a longstanding similar bug when nfs_commit_list() fails.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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This reverts ccf01ef7aa9c6c293a1c64c27331a2ce227916ec commit.
No idea how git managed this one: when I asked it to merge the odirect
topic branch it actually generated a patch which reverted the change.
Reverting the 'merge' will once again reveal Chuck's recent NFS/O_DIRECT
work to the world.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 3711/1: AT91 timer update
[ARM] 3709/1: pnx4008: convert to generic irq subsystem
[ARM] 3710/1: AT91 Serial: Use GPIO API
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Patch from Andrew Victor
The AIC interrupt controller is the same on the Atmel AT91RM9200,
AT91SAM9261 and AT91SAM9260 processors.
This patch removes any RM9200-specific naming from the IRQ driver, and
moves the AT91RM9200's default IRQ priority table into at91rm9200.c.
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Patch from Vitaly Wool
Convert pnx4008 chip support to use generic irq subsystem
Signed-off-by: Vitaly Wool <vitalywool@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Patch from Andrew Victor
The AT91RM9200 errata work-around should be using the GPIO API and not
accessing the PIO registers directly.
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (39 commits)
[PATCH] myri10ge - Export more parameters to ethtool
[PATCH] myri10ge - Use dev_info() when printing parameters after probe
[PATCH] myri10ge - Drop ununsed nvidia chipset id
[PATCH] myri10ge - Drop unused pm_state
[PATCH] Fix freeing of net device
[PATCH] remove dead entry in net wan Kconfig
[PATCH] NI5010 netcard cleanup
[PATCH] lock validator: fix ns83820.c irq-flags bug
[PATCH] pcnet32: Cleanup rx buffers after loopback test.
[PATCH] pcnet32: Suspend the chip rather than restart when changing multicast/promisc
[PATCH] pcnet32: Handle memory allocation failures cleanly when resizing tx/rx rings
[PATCH] pcnet32: Use kcalloc instead of kmalloc and memset
[PATCH] pcnet32: Fix off-by-one in get_ringparam
[PATCH] pcnet32: Use PCI_DEVICE macro
[PATCH] pcnet32: Fix Section mismatch error
[PATCH] Add support for the Cicada 8201 PHY
[PATCH] zd1211rw: disable TX queue during stop
[PATCH] ZyDAS ZD1211 USB-WLAN driver
[PATCH] softmac: fix build-break from 881ee6999d66c8fc903b429b73bbe6045b38c549
[PATCH] CONFIG_WIRELESS_EXT is neccessary after all
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Add the IRQ line, the tx_boundary, and whether Write-combining and MSI
are enabled to the list of parameters that are exported to ethtool.
Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Displaying the interface name when listing the device parameters
at the end of myri10ge_probe is not a good idea since udev might
rename the interface soon afterwards.
Print the bus id instead, using dev_info().
Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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The workaround for the AER capability of the nVidia chipset has been
removed, we don't need this PCI id anymore. Drop it.
Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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The pm_state field in the myri10ge_priv structure is unused. Drop it.
Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Plus optical sugar.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Remove dead entry from net wan Kconfig and net wan Makefile.. This entry is
left over from 2.4 where synclink used syncppp driver directly. synclink
drivers now use generic HDLC
Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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- updated MAINTAINERS entry to new format
- updated Jan-Pascal's (ACKed) and my email address
- driver cleanup/modernization (runtime-, not hardware-tested)
[bunk@stusta.de: build fix]
Signed-off-by: Andreas Mohr <andi@lisas.de>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Jan-Pascal van Best <jvbest@qv3pluto.leidenuniv.nl>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Barry K. Nathan reported the following lockdep warning:
[ 197.343948] BUG: warning at kernel/lockdep.c:1856/trace_hardirqs_on()
[ 197.345928] [<c010329b>] show_trace_log_lvl+0x5b/0x105
[ 197.346359] [<c0103896>] show_trace+0x1b/0x20
[ 197.346759] [<c01038ed>] dump_stack+0x1f/0x24
[ 197.347159] [<c012efa2>] trace_hardirqs_on+0xfb/0x185
[ 197.348873] [<c029b009>] _spin_unlock_irq+0x24/0x2d
[ 197.350620] [<e09034e8>] do_tx_done+0x171/0x179 [ns83820]
[ 197.350895] [<e090445c>] ns83820_irq+0x149/0x20b [ns83820]
[ 197.351166] [<c013b4b8>] handle_IRQ_event+0x1d/0x52
[ 197.353216] [<c013c6c2>] handle_level_irq+0x97/0xe1
[ 197.355157] [<c01048c3>] do_IRQ+0x8b/0xac
[ 197.355612] [<c0102d9d>] common_interrupt+0x25/0x2c
this is caused because the ns83820 driver re-enables irq flags
in hardirq context.
While legal in theory, in practice it should only be done if the
hardware is really old and has some very high overhead in its ISR.
(such as PIO IDE)
For modern hardware, running ISRs with irqs enabled is discouraged,
because 1) new hardware is fast enough to not cause latency problems
2) allowing the nesting of hardware interrupts only 'spreads out'
the handling of the current ISR, causing extra cachemisses that would
otherwise not happen. Furthermore, on architectures where ISRs share
the kernel stacks, enabling interrupts in ISRs introduces a much
higher kernel-stack-nesting and thus kernel-stack-overflow risk.
3) not managing irq-flags via the _irqsave / _irqrestore variants
is dangerous: it's easy to forget whether one function nests inside
another, and irq flags might be mismanaged.
In the few cases where re-enabling interrupts in an ISR is considered
useful (and unavoidable), it has to be taught to the lock validator
explicitly (because the lock validator needs the "no ISR ever enables
hardirqs" artificial simplification to keep the IRQ/softirq locking
dependencies manageable).
This teaching is done via the explicit use local_irq_enable_in_hardirq().
On a stock kernel this maps to local_irq_enable(). If the lock validator
is enabled then this does not enable interrupts.
Now, the analysis of drivers/net/ns83820.c's irq flags use: the
irq-enabling in irq context seems intentional, but i dont think it's
justified. Furthermore, the driver suffers from problem #3 above too,
in ns83820_tx_timeout() it disables irqs via local_irq_save(), but
then it calls do_tx_done() which does a spin_unlock_irq(),
re-enabling for a function that does not expect it! While currently
this bug seems harmless (only some debug printout seems to be
affected by it), it's nevertheless something to be fixed.
So this patch makes the ns83820 ISR irq-flags-safe, and cleans up
do_tx_done() use and locking to avoid the ns83820_tx_timeout() bug.
From: Arjan van de Ven <arjan@linux.intel.com>
ns83820_mib_isr takes the misc_lock in IRQ context. All other places that
do this in the ISR already use _irqsave versions, make this consistent at
least. At some point in the future someone should audit the driver to see
if all _irqsave's in the ISR can go away, this is generally an iffy/fragile
proposition though; for now get it safe, simple and consistent.
From: Arjan van de Ven <arjan@linux.intel.com>
ok this is a real driver deadlock:
The ns83820 driver enabled interrupts (by unlocking the misc_lock with
_irq) while still holding the rx_info.lock, which is required to be irq
safe since it's used in the ISR like this:
writel(1, dev->base + IER);
spin_unlock_irq(&dev->misc_lock);
kick_rx(ndev);
spin_unlock_irq(&dev->rx_info.lock);
This is can cause a deadlock if an irq was pending at the first
spin_unlock_irq already, or if one would hit during kick_rx().
Simply remove the first _irq solves this
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Benjamin LaHaise <bcrl@kvack.org>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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More cleanup to pcnet32_loopback_test to release receive buffers if
device is not up. Created common routine to free rx buffers.
Tested ia32 and ppc64
Signed-off-by: Don Fry <brazilnut@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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multicast/promisc
Suspend the chip if possible rather than stop and discard all tx and rx
frames, when changing the mcast list or entering/leaving promiscuous
mode. Created common pcnet32_suspend routine.
Tested ia32 and ppc64
Signed-off-by: Don Fry <brazilnut@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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tx/rx rings
Fix pcnet32_set_ringparam to handle memory allocation errors without
leaving the adapter in an inoperative state and null pointers waiting to
be dereferenced.
Tested ia32 and ppc64.
Signed-off-by: Don Fry <brazilnut@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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On 2006-03-08 Eric Sesterhenn wrote:
converts drivers/net to kzalloc usage.
Don Fry modified it to use netif_msg_drv. Tested ia32 and ppc64.
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Don Fry <brazilnut@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Fix off-by-one in pcnet32_get_ringparam
Signed-off-by: Don Fry <brazilnut@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Jon Mason wrote on Thu, 12 Jan 2006 17:07:49 -0600:
This patch adds the PCI_DEVICE macro to the pcnet32 driver.
This has been tested on my opteron with my "trident" adapter.
Don Fry modified it slightly and tested on ia32 and ppc64.
Signed-off-by: Jon Mason <jdmason@us.ibm.com>
Signed-off-by: Don Fry <brazilnut@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Fix Section mismatch error. Tested ia32 and ppc64.
Signed-off-by: Don Fry <brazilnut@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Add support for the Cicada 8201 PHY, a.k.a Vitesse VSC8201. This PHY is present on the MPC8349mITX.
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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This avoids some potential races.
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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There are 60+ USB wifi adapters available on the market based on the ZyDAS
ZD1211 chip.
Unlike the predecessor (ZD1201), ZD1211 does not have a hardware MAC, so most
data operations are coordinated by the device driver. The ZD1211 chip sits
alongside an RF transceiver which is also controlled by the driver. Our driver
currently supports 2 RF types, we know of one other available in a few marketed
products which we will be supporting soon.
Our driver also supports the newer revision of ZD1211, called ZD1211B. The
initialization and RF operations are slightly different for the new revision,
but the main difference is 802.11e support. Our driver does not support the
QoS features yet, but we think we know how to use them.
This driver is based on ZyDAS's own GPL driver available from www.zydas.com.tw.
ZyDAS engineers have been responsive and supportive of our efforts, so thumbs
up to them. Additionally, the firmware is redistributable and they have
provided device specs.
This driver has been written primarily by Ulrich Kunitz and myself. Graham
Gower, Greg KH, Remco and Bryan Rittmeyer have also contributed. The
developers of ieee80211 and softmac have made our lives so much easier- thanks!
We maintain a small info-page: http://zd1211.ath.cx/wiki/DriverRewrite
If there is enough time for review, we would like to aim for inclusion in
2.6.18. The driver works nicely as a STA, and can connect to both open and
encrypted networks (we are using software-based encryption for now). We will
work towards supporting more advanced features in the future (ad-hoc, master
mode, 802.11a, ...).
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: John W. Linville <linville@tuxdriver.com>
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WARNING: /lib/modules/2.6.17-mm2/kernel/net/ieee80211/ieee80211.ko
needs unknown symbol wireless_spy_update
Someone removed the `#ifdef CONFIG_WIRELESS_EXT' from around the callsite
in net/ieee80211/ieee80211_rx.c and didn't update Kconfig appropriately.
The offending patchset seems to be 35c14b855f52c49e4f3d078b9532b056005ed321
which is tittled
[PATCH] ieee80211: remove unnecessary CONFIG_WIRELESS_EXT checking
After a quick look it seems that wireless_spy_update() lives in
net/core/wirless.c, and that file is only compiled if
CONFIG_WIRELESS_EXT is set. Perhaps this is Kconig work, but
in the mean time here is a reversal of the recent change.
Signed-Off-By: Horms <horms@verge.net.au>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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times out
The ieee80211softmac_call_events function, when called with event type
IEEE80211SOFTMAC_EVENT_ASSOCIATE_TIMEOUT should pass the network as the
third parameter. This patch does that.
Signed-off-by: Joseph Jezak <josejx@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This patch addresses the "No queue exists" messages commonly seen during
authentication and associating. These appear due to scheduling multiple
authentication attempts on the same network. To prevent this, I added a
flag to stop multiple authentication attempts by the association layer.
I also added a check to the wx handler to see if we're connecting to a
different network than the one already in progress. This scenario was
causing multiple requests on the same network because the network BSSID
was not being updated despite the fact that the ESSID changed.
Signed-off-by: Joseph Jezak <josejx@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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I recently patched softmac to enable shared key authentication. This small patch
will enable crazy or unfortunate bcm43xx users to use this new capability.
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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ieee80211softmac_assoc_req
In commit ba9b28d19a3251bb1dfe6a6f8cc89b96fb85f683, routine
ieee80211softmac_capabilities was added to ieee80211softmac_io.c. As
denoted by its name, it completes the capabilities IE that is
needed in the associate and reassociate requests sent to the
AP. For at least one AP, the Linksys WRT54G V5, the capabilities
field must set the 'short preamble' bit or the AP refuses to
associate. In the commit noted above, there is a call to the
new routine from ieee80211softmac_reassoc_req, but not from
ieee80211softmac_assoc_req. This patch fixes that oversight.
As noted in the subject, v2.6.17 is affected. My bcm43xx card had been
unable to associate since I was forced to buy a new AP. I finally was
able to get a packet dump and traced the problem to the capabilities
info. Although I had heard that a patch was "floating around", I had
not seen it before 2.6.17 was released. As this bug does not affect
security and I seem to have the only AP affected by it, there should
be no problem in leaving it for 2.6.18.
Signed-Off-By: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The current version of bcm43xx-softmac uses local routines to check
if a channel is valid. As noted in the comments, these routines do
not take any regulatory information into account. This patch converts
the code to use the equivalent routine in ieee80211, which is being
converted to know about regulatory information.
Signed-Off-By: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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this patch fixes coverity id #913. ieee80211_monitor_rx() passes the skb
to netif_rx() and we should not reference it any longer.
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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ieee80211_tx_frame
We should preallocate IV+ICV space when encrypting the frame.
Currently no problem shows up just because dev_alloc_skb aligns the
data len to SMP_CACHE_BYTES which can be used for ICV.
Signed-off-by: Hong Liu <hong.liu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Place the Init-vs-IRQ workaround before any card register
access, because we might not have the wireless core mapped
at all times in init. So this will result in a Machine Check
caused by a bus error.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Use Softmac-suggested TX ratecode:
ieee80211softmac_suggest_txrate()
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This patch adds device IDs for Symbol LA-4123 and Global Sun Tech
GL24110P to the HostAP PLX driver.
This is not tested with real hardware, but there is no reason why it
shouldn't work.
Please test.
Signed-off-by: Faidon Liambotis <faidon@cube.gr>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Suggested by Jiri Slaby.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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