| Commit message (Collapse) | Author | Age | Files | Lines |
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Jens Axboe pointed out that the iounmap() call in libata was occurring
too early, and some drivers (ahci, probably others) were using ioremap'd
memory after it had been unmapped.
The patch should address that problem by way of improving the libata
driver API:
* move ->host_stop() call after all ->port_stop() calls have occurred.
* create default helper function ata_host_stop(), and move iounmap()
call there.
* add ->host_stop_prewalk() hook, use it in sata_qstor.c (hi Mark).
sata_qstor appears to require the host-stop-before-port-stop ordering
that existed prior to applying the attached patch.
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constants
The previous patch did not compile cleanly on all architectures so
here's a fixed one which #includes <linux/dma-mapping.h>.
Use the DMA_{64,32}BIT_MASK constants from dma-mapping.h when calling
pci_set_dma_mask() or pci_set_consistent_dma_mask()
This patch includes dma-mapping.h explicitly because it caused errors
on some architectures otherwise.
See http://marc.theaimsgroup.com/?t=108001993000001&r=1&w=2 for details
Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch>
Signed-off-by: Domen Puncer <domen@coderock.org>
diff -puN drivers/scsi/ahci.c~dma_mask-drivers_scsi_ahci drivers/scsi/ahci.c
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The previous patch did not compile cleanly on all architectures so
here's a fixed one which #includes <linux/dma-mapping.h>.
Use the DMA_{64,32}BIT_MASK constants from dma-mapping.h when calling
pci_set_dma_mask() or pci_set_consistent_dma_mask()
This patch includes dma-mapping.h explicitly because it caused errors
on some architectures otherwise.
See http://marc.theaimsgroup.com/?t=108001993000001&r=1&w=2 for details
Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch>
Signed-off-by: Domen Puncer <domen@coderock.org>
diff -puN drivers/scsi/sata_vsc.c~dma_mask-drivers_scsi_sata_vsc drivers/scsi/sata_vsc.c
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SGI Modid: xfs-linux:xfs-kern:21810a
Signed-off-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Christoph Hellwig <hch@sgi.com>
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This may be the cause of several open PV's of incorrect
delay flags being set and then tripping asserts.
Do not return a delay alloc extent when the caller is asking to do a write.
SGI Modid: xfs-linux:xfs-kern:189616a
Signed-off-by: Russell Cattelan <cattelan@sgi.com>
Signed-off-by: Christoph Hellwig <hch@sgi.com>
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Even after the previous fix you can still set CONFIG_ACPI_BOOT
indirectly even without CONFIG_ACPI by choosing CONFIG_PCI and
CONFIG_PCI_MMCONFIG.
That doesn't build very well either.
This makes PCI_MMCONFIG depend on ACPI, fixing that hole.
[ I guess in theory Kconfig could follow the whole chain of dependencies
for things that get selected, but that sounds insanely complicated, so
we'll just fix up these things by hand. --Linus ]
Signed-off-by: Alexander Nyberg <alexn@telia.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Fix 2.6.12 CONFIG_ACPI=n build regression.
CONFIG_ACPI_BOOT shall be set only if CONFIG_ACPI.
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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quirk_via_irqpic can't be __devinit for swsuspend
Signed-off-by: Alexander Nyberg <alexn@telia.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Delete quirk_via_bridge(), restore quirk_via_irqpic() -- but now
improved to be invoked upon device ENABLE, and now only for VIA devices
-- not all devices behind VIA bridges.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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There is a race in the kernel cpuset code, between the code
to handle notify_on_release, and the code to remove a cpuset.
The notify_on_release code can end up trying to access a
cpuset that has been removed. In the most common case, this
causes a NULL pointer dereference from the routine cpuset_path.
However all manner of bad things are possible, in theory at least.
The existing code decrements the cpuset use count, and if the
count goes to zero, processes the notify_on_release request,
if appropriate. However, once the count goes to zero, unless we
are holding the global cpuset_sem semaphore, there is nothing to
stop another task from immediately removing the cpuset entirely,
and recycling its memory.
The obvious fix would be to always hold the cpuset_sem
semaphore while decrementing the use count and dealing with
notify_on_release. However we don't want to force a global
semaphore into the mainline task exit path, as that might create
a scaling problem.
The actual fix is almost as easy - since this is only an issue
for cpusets using notify_on_release, which the top level big
cpusets don't normally need to use, only take the cpuset_sem
for cpusets using notify_on_release.
This code has been run for hours without a hiccup, while running
a cpuset create/destroy stress test that could crash the existing
kernel in seconds. This patch applies to the current -linus
git kernel.
Signed-off-by: Paul Jackson <pj@sgi.com>
Acked-by: Simon Derr <simon.derr@bull.net>
Acked-by: Dinakar Guniguntala <dino@in.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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The original pwc author raised some questions about the reverse
engineering of the decompressor algorithms used in the pwc driver.
Having done some detailed investigation it appears those concerns that
clean room policy was not followed are reasonable. I've also had a
friendly discussion with Philips to ask their view on this.
This removes the problem items of code which reduces the pwc
functionality in the kernel a little but leaves all the framework for
setup that will be needed for decompressors in user space (where they
eventually belong). This change set is designed to be the minimal risk
change set given that 2.6.12 is hopefully close to hand, with a view to
merging the much updated pwc code in 2.6.13 series kernels.
Someone else can then redo the decompressors properly (clean room) in
user space.
Note that while its easy to say that it should have been caught earlier,
but the violation was really only obvious to someone who had access to
both the proprietary source and the 'GPL' source.
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The change to require the DMA length to be only word-aligned was not
safe.
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We fixed this bug before, but it didn't take. It may have been the case
that the problem was first noticed to occur in a CONFIG_REGPARM compile.
But it's not regparm functions that need not to make tail calls, it's
asmlinkage functions called with a user pt_regs frame on the stack
supplying their arguments. prevent_tail_call probably doesn't do anything
at all in regparm functions (your argument registers are going to be
clobbered, period). It was a braino to conditionalize that definition in
the first place.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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rsync://rsync.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
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A new driver bnx2 for Broadcom bcm5706 is available.
The patch also includes new 1000BASE-X advertisement bit definitions in
mii.h
Thanks to David Miller and Jeff Garzik for reviewing and their valuable
feedback.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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"_s" suffix is certainly of hungarian origin.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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[XFRM] Call dst_check() with appropriate cookie
This fixes infinite loop issue with IPv6 tunnel mode.
Signed-off-by: Kazunori Miyazawa <kazunori@miyazawa.org>
Signed-off-by: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Correcting the list traversal makes the problem go away.
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Here is a fixed up version of the reorder feature of netem.
It is the same as the earlier patch plus with the bugfix from Julio merged in.
Has expected backwards compatibility behaviour.
Go ahead and merge this one, the TCP strangeness I was seeing was due
to the reordering bug, and previous version of TSO patch.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Netem works better if there if packets are just queued in the inner discipline
rather than having a separate delayed queue. Change to use the dequeue/requeue
to peek like TBF does.
By doing this potential qlen problems with the old method are avoided. The problems
happened when the netem_run that moved packets from the inner discipline to the nested
discipline failed (because inner queue was full). This happened in dequeue, so the
effective qlen of the netem would be decreased (because of the drop), but there was
no way to keep the outer qdisc (caller of netem dequeue) in sync.
The problem window is still there since this patch doesn't address the issue of
requeue failing in netem_dequeue, but that shouldn't happen since the sequence dequeue/requeue
should always work. Long term correct fix is to implement qdisc->peek in all the qdisc's
to allow for this (needed by several other qdisc's as well).
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Handle duplication of packets in netem by re-inserting at top of qdisc tree.
This avoid problems with qlen accounting with nested qdisc. This recursion
requires no additional locking but will potentially increase stack depth.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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rsync://rsync.kernel.org/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
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rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git branch HEAD
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This has been a problem for me for ages. When using bridging, the driver
is switched into promiscuous mode before the link init is complete. The
init complete routine then resets the promisc bit on the card so the kernel
still thinks the card is in promiscuous mode but the card isn't. doh.
I think this bug only shows up in bridging when the bridge is started at
boot time (or something else that sets promisc at the same time the card
was started). If promisc is enabled later it works.
Here's a trivial (and hopefully correct) patch that works for me. It
just calls the promisc/multicast setup routine after init.
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
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The module parameter values got lost in the conversion to the new module_param
interface. This should fix it.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Index: tlan/drivers/net/tlan.c
===================================================================
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This patch fixes the following compile error caused by bk-netdev:
<-- snip -->
...
LD .tmp_vmlinux1
drivers/built-in.o(.text+0x98528): In function `sis900_get_settings':
: undefined reference to `mii_ethtool_gset'
drivers/built-in.o(.text+0x98538): In function `sis900_set_settings':
: undefined reference to `mii_ethtool_sset'
drivers/built-in.o(.text+0x98517): In function `sis900_get_link':
: undefined reference to `mii_link_ok'
drivers/built-in.o(.text+0x98547): In function `sis900_nway_reset':
: undefined reference to `mii_nway_restart'
make: *** [.tmp_vmlinux1] Error 1
<-- snip -->
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Daniele Venzano <venza@brownhat.org>
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Add support to sis900 for the following ethtool ops:
- get_link
- get_settings
- set_settings
- nway_reset
Signed-off-by: Daniele Venzano <webvenza@libero.it>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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Hi Andrew, Jeff,
The iseries_veth driver is badly behaved in that it will keep TX packets
hanging around forever if they're not ACK'ed and the queue never fills up.
This causes the unregister_netdevice code to wait forever when we try to take
the device down, because there's still skbs around with references to our
struct net_device.
There's already code to cleanup any un-ACK'ed packets in veth_stop_connection()
but it's being called after we unregister the net_device, which is too late.
The fix is to rearrange the module exit function so that we cleanup any
outstanding skbs and then unregister the driver.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
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Hi Andrew, Jeff,
Under some strange circumstances the iseries_veth driver can leak skbs.
Fix is simply to call dev_kfree_skb() in the right place.
Fix up the comment as well.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
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Hi Andrew, Jeff,
The iseries_veth driver doesn't set dev->trans_start in it's TX path. This
will cause the net device watchdog timer to fire earlier than we want it to,
which causes the driver to needlessly reset its connections to other LPARs.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
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Hi Andrew, Jeff,
The iseries_veth driver has a logic bug which means it will erroneously
send packets to LPARs for which we don't have a connection.
This usually isn't a big problem because the Hypervisor call fails
gracefully and we return, but if packets are TX'ed during the negotiation
of the connection bad things might happen.
Regardless, the right thing is to bail early if we know there's no
connection.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
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[patch 10/10] s390: qeth bug fixes.
From: Frank Pavlic <pavlic@de.ibm.com>
qeth network driver related changes:
- due to OSA hardware changes in TCP Segmentation Offload
support we are able now to pack TSO packets too.
This fits perfectly in design of qeth buffer handling and
sending data respectively.
- remove skb_realloc_headroom from the sending path since
hard_header_len value provides enough headroom now.
- device recovery behaviour improvement
- bug fixed in Enhanced Device Driver Packing functionality
Signed-off-by: Frank Pavlic <pavlic@de.ibm.com>
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[patch 9/10] s390: qeth bug fixes.
From: Frank Pavlic <pavlic@de.ibm.com>
qeth network driver changes:
- Use sizeof(__u16) instead of '2' in qeth_fill_header.
Signed-off-by: Frank Pavlic <pavlic@de.ibm.com>
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[patch 8/10] s390: fakell for high speed token ring.
From: Michael Holzheu <holzheu@de.ibm.com>
Implement fake-link-layer for high speed token ring. Without it
token ring packages get leading ethernet headers, which confuses
dhcp.
Signed-off-by: Frank Pavlic <pavlic@de.ibm.com>
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[patch 7/10] s390: qeth bug fixes.
From: Frank Pavlic <pavlic@de.ibm.com>
qeth network driver changes:
- Removed redundant code, use the same qeth_fill_buffer_frag
for TSO path either
- Using skb->frags solely is not correct since skb->data still
points to the beginning of the whole data, even when it is
a small portion we have to fill the qdio buffer with it.
Signed-off-by: Frank Pavlic <pavlic@de.ibm.com>
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[patch 6/10] s390: enable iucv_send2way_xxx functions.
From: Ursula Braun-Krahl <braunu@de.ibm.com>
The SSL-Server of z/VM wants to use the iucv_send2way
and iucv_send2way_array function. Enable them again.
Signed-off-by: Frank Pavlic <pavlic@de.ibm.com>
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[patch 5/10] s390: ctc code cleanup.
From: Peter Tiedemann <ptiedem@de.ibm.com>
ctc network driver changes:
- Some code cleanup.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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[patch 4/10] s390: schedule_timeout cleanup in ctctty.
From: Domen Puncer <domen@coderock.org>
Use msleep_interruptible() instead of schedule_timeout()
to guarantee the task delays as expected.
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Maximilian Attems <janitor@sternwelten.at>
Signed-off-by: Domen Puncer <domen@coderock.org>
Signed-off-by: Frank Pavlic <pavlic@de.ibm.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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[patch 3/10] s390: set online race in the lcs driver.
From: Michael Holzheu <holzheu@de.ibm.com>
There is a race between lcs_stopcard() and lcs_open_device() which
can lead to the error 'lcs: Error in starting channel, rc=-16'.
lcs_open_device() is invoked when 'ifconfig up' is called due to a
hotplug event, which is caused by register_netdev(). In parallel
lcs_stopcard() is executed. Both functions are sending lcs commands.
The second invocation fails with -EBUSY (-16) as return value.
Move invocation of register_netdev() after invocation of lcs_stopcard
to avoid the race.
Signed-off-by: Frank Pavlic <pavlic@de.ibm.com>
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[patch 2/10] s390: multicast address registration in lcs.
From: Michael Holzheu <holzheu@de.ibm.com>
When setting lcs devices online you can run into an endless loop,
because the code that registers the multicast addresses uses
list_for_each_entry instead of list_for_each_entry_safe.
Signed-off-by: Frank Pavlic <pavlic@de.ibm.com>
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