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It's all good.
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* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
[PKT_SCHED]: Fix error handling while dumping actions
[PKT_SCHED]: Return ENOENT if action module is unavailable
[PKT_SCHED]: Fix illegal memory dereferences when dumping actions
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* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
[SPARC64]: Fix stack overflow checking in modular non-SMP kernels.
[SPARC64]: Fix sparc64 build errors when CONFIG_PCI=n.
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"return -err" and blindly inheriting the error code in the netlink
failure exception handler causes errors codes to be returned as
positive value therefore making them being ignored by the caller.
May lead to sending out incomplete netlink messages.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The TCA_ACT_KIND attribute is used without checking its
availability when dumping actions therefore leading to a
value of 0x4 being dereferenced.
The use of strcmp() in tc_lookup_action_n() isn't safe
when fed with string from an attribute without enforcing
proper NUL termination.
Both bugs can be triggered with malformed netlink message
and don't require any privileges.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The sparc64 kernel's EXPORT_SYMBOL(_mcount) is inside an
#ifdef CONFIG_SMP. This breaks modules in non-SMP kernels
built with stack overflow checking (CONFIG_STACK_DEBUG=y),
as modules_install reports:
WARNING: /lib/modules/2.6.17/kernel/drivers/ide/ide-cd.ko needs unknown symbol _mcount
Trivially fixed by moving EXPORT_SYMBOL(_mcount) outside of
the #ifdef CONFIG_SMP.
Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
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master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
[PCI] Add JMicron PCI ID constants
[PATCH] ahci: Ensure that we don't grab both functions
[PATCH] libata-core.c: restore configuration boot messages in ata_dev_configure(), v2
[PATCH] sata_sil24: add suspend/sleep support
[PATCH] sata_sil24: separate out sil24_init_controller()
[PATCH] sata_sil: add suspend/sleep support
[PATCH] sata_sil: separate out sil_init_controller()
[PATCH] libata: reimplement controller-wide PM
[PATCH] libata: reimplement per-dev PM
[PATCH] libata: implement PM EH actions
[PATCH] libata: separate out __ata_ehi_hotplugged()
[PATCH] libata: implement ATA_EHI_NO_AUTOPSY and QUIET
[PATCH] libata: clean up debounce parameters and improve parameter selection
[PATCH] libata: implement ATA_EHI_RESUME_LINK
[PATCH] libata: replace ap_lock w/ ap->lock in ata_scsi_error()
[PATCH] libata: fix ehc->i.action setting in ata_eh_autopsy()
[PATCH] libata: add ap->pflags and move core dynamic flags to it
[PATCH] libata: Conditionally set host->max_cmd_len
[PATCH] sata_vsc: data_xfer should use mmio
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Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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They will be used in several IDE/libata files.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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When we force the chip into dual fn mode so we get PATA and AHCI we must
be sure we don't then do anything dumb like try and grab both with the AHCI
driver.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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ata_dev_configure(), v2
This one looks better, IMHO.
This restores the default libata configuration messages printed during booting.
Signed-off-by: <petkov@math.uni-muenster.de>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Add suspend/sleep support.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Separate out controller initialization from sil24_init_one() into
sil24_init_controller(). This will be used by resume.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Add suspend/sleep support.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Separate out controller initialization from sil_init_one() into
sil_init_controller(). This will be used by resume.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Reimplement controller-wide PM. ata_host_set_suspend/resume() are
defined to suspend and resume a host_set. While suspended, EHs for
all ports in the host_set are pegged using ATA_FLAG_SUSPENDED and
frozen.
Because SCSI device hotplug is done asynchronously against the rest of
libata EH and the same mutex is used when adding new device, suspend
cannot wait for hotplug to complete. So, if SCSI device hotplug is in
progress, suspend fails with -EBUSY.
In most cases, host_set resume is followed by device resume. As each
resume operation requires a reset, a single host_set-wide resume
operation may result in multiple resets. To avoid this, resume waits
upto 1 second giving PM to request resume for devices.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Reimplement per-dev PM. The original implementation directly put the
device into suspended mode and didn't synchronize w/ EH operations
including hotplug. This patch reimplements ata_scsi_device_suspend()
and ata_scsi_device_resume() such that they request EH to perform the
respective operations. Both functions synchronize with hotplug such
that it doesn't operate on detached devices.
Suspend waits for completion but resume just issues request and
returns. This allows parallel wake up of devices and thus speeds up
system resume.
Due to sdev detach synchronization, it's not feasible to separate out
EH requesting from sdev handling; thus, ata_device_suspend/resume()
are removed and everything is implemented in the respective
libata-scsi functions.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Implement two PM per-dev EH actions - ATA_EH_SUSPEND and
ATA_EH_RESUME. Each action puts the target device into suspended mode
and resumes from it respectively.
Once a device is put to suspended mode, no EH operations other than
RESUME is allowed on the device. The device will stay suspended till
it gets resumed and thus reset and revalidated. To implement this, a
new device state helper - ata_dev_ready() - is implemented and used in
EH action implementations to make them operate only on attached &
running devices.
If all possible devices on a port are suspended, reset is skipped too.
This prevents spurious events including hotplug events from disrupting
suspended devices.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Separate out __ata_ehi_hotplugged() from ata_ehi_hotplugged(). The
underscored version doesn't set AC_ERR_ATA_BUS. This will be used for
resume which is a hotplug event but not an ATA bus error.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Implement ATA_EHI_NO_AUTOPSY and QUIET. These used to be implied by
ATA_PFLAG_LOADING, but new power management and PMP support need to
use these separately. e.g. Suspend/resume operations shouldn't print
full EH messages and resume shouldn't be recorded as an error.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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The names of predefined debounce timing parameters didn't exactly
match their usages. Rename to more generic names and implement param
selection helper sata_ehc_deb_timing() which uses EHI_HOTPLUGGED to
select params.
Combined with the previous EHI_RESUME_LINK differentiation, this makes
parameter selection accurate. e.g. user scan resumes link but normal
deb param is used instead of hotplug param.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Implement ATA_EHI_RESUME_LINK, which indicates that the link needs to
be resumed. This used to be implied by ATA_EHI_HOTPLUGGED. However,
hotplug isn't the only event which requires link resume and separating
this out allows other places to request link resume. This
differentiation also allows better debounce timing selection.
This patch converts user scan to use ATA_EHI_RESUME_LINK.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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ap_lock was used because &ap->host_set->lock was too long and used a
lot. Now that &ap->host_set->lock is replaced with ap->lock, there's
no reason to keep ap_lock.
[ed. note: that's not entirely true. ap_lock is a local variable,
caching the results of a de-ref. In theory, if the compiler is smart
enough, this patch is cosmetic. However, since this is not a fast
path (it is the error path), this patch is nonetheless acceptable,
even though it _may_ introduce a performance regression.]
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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ata_eh_autopsy() used to directly assign determined action mask to
ehc->i.action thus overriding actions set by some of nested analyze
functions. This patch makes ata_eh_autopsy() add action masks just as
it's done in other places.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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ap->flags is way too clamped. Separate out core dynamic flags to
ap->pflags. ATA_FLAG_DISABLED is a dynamic flag but left alone as
it's referenced by a lot of LLDs and it's gonna be removed once all
LLDs are converted to new EH.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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In preparation for SAS attached SATA devices, which will
not have a libata scsi_host, only setup host->max_cmd_len
if ap->host exists.
Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Hi,
sata_vsc is an MMIO device, and should use the correct data_xfer
function. This problem was introduced by:
commit a6b2c5d4754dc539a560fdf0d3fb78a14174394a
Author: Alan Cox <alan@lxorguk.ukuu.org.uk>
Date: Mon May 22 16:59:59 2006 +0100
[PATCH] PATCH: libata. Add ->data_xfer method
Signed-off-by: Martin Hicks <mort@bork.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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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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* 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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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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Linus Torvalds
Thomas Graf
Mikael Pettersson
Randy Dunlap
Jeff Garzik
root
Borislav Petkov
Tejun Heo
Brian King
Martin Hicks
Brice Goglin
Ralf Baechle
Paul Fulghum
Andreas Mohr
Ingo Molnar
Don Fry
Kim Phillips
Daniel Drake
John W. Linville