Hiroshi Doyu [Tue, 29 Jan 2013 12:57:07 +0000 (14:57 +0200)]
ARM: dma-mapping: Set arm_dma_set_mask() for iommu->set_dma_mask()
struct dma_map_ops iommu_ops doesn't have ->set_dma_mask, which causes
crash when dma_set_mask() is called from some driver.
Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Laurent Pinchart [Sun, 16 Dec 2012 12:32:03 +0000 (13:32 +0100)]
ARM: iommu: Include linux/kref.h in asm/dma-iommu.h
The dma_iommu_mapping structure defined in asm/dma-iommu.h embeds a
struct kref, include the appropriate header file.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Linus Torvalds [Mon, 18 Feb 2013 23:58:34 +0000 (15:58 -0800)]
Linux 3.8
Linus Torvalds [Mon, 18 Feb 2013 18:23:40 +0000 (10:23 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
Pull input subsystem fixes from Dmitry Torokhov:
"Two small driver fixups and a documentation update for managed input
devices"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: wacom - fix wacom_set_report retry logic
Input: document that unregistering managed devices is not necessary
Input: lm8323 - fix checking PWM interrupt status
Linus Torvalds [Mon, 18 Feb 2013 17:58:02 +0000 (09:58 -0800)]
mm: fix pageblock bitmap allocation
Commit
c060f943d092 ("mm: use aligned zone start for pfn_to_bitidx
calculation") fixed out calculation of the index into the pageblock
bitmap when a !SPARSEMEM zome was not aligned to pageblock_nr_pages.
However, the _allocation_ of that bitmap had never taken this alignment
requirement into accout, so depending on the exact size and alignment of
the zone, the use of that index could then access past the allocation,
resulting in some very subtle memory corruption.
This was reported (and bisected) by Ingo Molnar: one of his random
config builds would hang with certain very specific kernel command line
options.
In the meantime, commit
c060f943d092 has been marked for stable, so this
fix needs to be back-ported to the stable kernels that backported the
commit to use the right alignment.
Bisected-and-tested-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Mel Gorman <mgorman@suse.de>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 15 Feb 2013 20:12:55 +0000 (12:12 -0800)]
Merge tag 'stable/for-linus-3.8-rc7-tag-two' of git://git./linux/kernel/git/konrad/xen
Pull xen fixes from Konrad Rzeszutek Wilk:
"Two fixes:
- A simple bug-fix for redundant NULL check.
- CVE-2013-0228/XSA-42: x86/xen: don't assume %ds is usable in
xen_iret for 32-bit PVOPS
and two reverts:
- Revert the PVonHVM kexec. The patch introduces a regression with
older hypervisor stacks, such as Xen 4.1."
* tag 'stable/for-linus-3.8-rc7-tag-two' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
Revert "xen PVonHVM: use E820_Reserved area for shared_info"
Revert "xen/PVonHVM: fix compile warning in init_hvm_pv_info"
xen: remove redundant NULL check before unregister_and_remove_pcpu().
x86/xen: don't assume %ds is usable in xen_iret for 32-bit PVOPS.
Mauro Carvalho Chehab [Fri, 15 Feb 2013 15:39:31 +0000 (13:39 -0200)]
Revert "[media] dvb_frontend: return -ENOTTY for unimplement IOCTL"
As reported by Klaus Schmidinger:
"In VDR I use an ioctl() call with FE_READ_UNCORRECTED_BLOCKS on a
device (using stb0899). After this call I check 'errno' for
EOPNOTSUPP to determine whether this device supports this call. This
used to work just fine, until a few months ago I noticed that my
devices using stb0899 didn't display their signal quality in VDR's OSD
any more. After further investigation I found that
ioctl(FE_READ_UNCORRECTED_BLOCKS) no longer returns EOPNOTSUPP, but
rather ENOTTY. And since I stop getting the signal quality in case
any unknown errno value appears, this broke my signal quality query
function."
While the changes reflect what is there at:
http://comments.gmane.org/gmane.linux.kernel/
1235728
it does cause regression on userspace. So, revert it to stop the
damage.
This reverts commit
177ffe506cf8 ("[media] dvb_frontend: return -ENOTTY
for unimplement IOCTL").
Reported-by: Klaus Schmidinger <Klaus.Schmidinger@tvdr.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 15 Feb 2013 20:05:57 +0000 (12:05 -0800)]
Merge git://git./linux/kernel/git/davem/sparc
Pull sparc fixes from David Miller:
"A couple small fixes for sparc including some THP brown-paper-bag
material:
1) During the merging of all the THP support for various
architectures, sparc missed adding a
HAVE_ARCH_TRANSPARENT_HUGEPAGE to it's Kconfig, oops.
2) Sparc needs to be mindful of hugepages in get_user_pages_fast().
3) Fix memory leak in SBUS probe, from Cong Ding.
4) The sunvdc virtual disk client driver has a test of the bitmask of
vdisk server supported operations which was off by one bit"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sunvdc: Fix off-by-one in generic_request().
sparc64: Fix get_user_pages_fast() wrt. THP.
sparc64: Add missing HAVE_ARCH_TRANSPARENT_HUGEPAGE.
sparc: kernel/sbus.c: fix memory leakage
Linus Torvalds [Fri, 15 Feb 2013 20:04:57 +0000 (12:04 -0800)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull one more x86 fix from Peter Anvin:
"Sigh. One more patch in the "please don't brick my Samsung" series"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi: Clear EFI_RUNTIME_SERVICES rather than EFI_BOOT by "noefi" boot parameter
Linus Torvalds [Fri, 15 Feb 2013 20:04:08 +0000 (12:04 -0800)]
Merge tag '3.8-pci-fixes-3' of git://git./linux/kernel/git/helgaas/pci
Pull PCI fix from Bjorn Helgaas:
"This is another fix for v3.8. It fixes an oops that happens when a
Thunderbolt adapter is unplugged (remove device, poll for PME events
on no-longer-existing device, oops)."
* tag '3.8-pci-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI/PM: Clean up PME state when removing a device
Linus Torvalds [Fri, 15 Feb 2013 20:03:09 +0000 (12:03 -0800)]
Merge tag 'omapdss-for-3.8-rc8' of git://gitorious.org/linux-omap-dss2/linux
Pull omapdss fixes from Tomi Valkeinen:
"It'd be great if these two late fixes would still make it into 3.8.
The other one fixes ARM kernel compilation when using 'allyesconfig',
and the other makes DPI displays function again on OMAP3630 boards:
- Fix ARM compilation with "allyesconfig" (omapdrm: fix the
dependency to omapdss)
- fix DPI displays on OMAP3630 (OMAPDSS: add FEAT_DPI_USES_VDDS_DSI
to omap3630_dss_feat_list)"
* tag 'omapdss-for-3.8-rc8' of git://gitorious.org/linux-omap-dss2/linux:
omapdrm: fix the dependency to omapdss
OMAPDSS: add FEAT_DPI_USES_VDDS_DSI to omap3630_dss_feat_list
Linus Torvalds [Fri, 15 Feb 2013 19:59:27 +0000 (11:59 -0800)]
Merge branch 'i2c/for-current' of git://git./linux/kernel/git/wsa/linux
Pull i2c maintainer info update from Wolfram Sang:
"Since my old email and repos are not working anymore, and this already
caused some confusion, I think a MAINTAINERS update for 3.8 is
helpful. So, people trying I2C with the new kernel can properly reach
me and find my repos."
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
MAINTAINERS: change my email and repos
Konrad Rzeszutek Wilk [Fri, 15 Feb 2013 02:29:31 +0000 (21:29 -0500)]
Revert "xen PVonHVM: use E820_Reserved area for shared_info"
This reverts commit
9d02b43dee0d7fb18dfb13a00915550b1a3daa9f.
We are doing this b/c on 32-bit PVonHVM with older hypervisors
(Xen 4.1) it ends up bothing up the start_info. This is bad b/c
we use it for the time keeping, and the timekeeping code loops
forever - as the version field never changes. Olaf says to
revert it, so lets do that.
Acked-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Konrad Rzeszutek Wilk [Fri, 15 Feb 2013 02:29:27 +0000 (21:29 -0500)]
Revert "xen/PVonHVM: fix compile warning in init_hvm_pv_info"
This reverts commit
a7be94ac8d69c037d08f0fd94b45a593f1d45176.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
David S. Miller [Thu, 14 Feb 2013 19:49:01 +0000 (11:49 -0800)]
sunvdc: Fix off-by-one in generic_request().
The 'operations' bitmap corresponds one-for-one with the operation
codes, no adjustment is necessary.
Reported-by: Mark Kettenis <mark.kettenis@xs4all.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tomi Valkeinen [Thu, 7 Feb 2013 14:35:52 +0000 (16:35 +0200)]
omapdrm: fix the dependency to omapdss
omapdrm uses "select" in Kconfig to enable omapdss. This doesn't work
correctly, as "select" forces omapdss to be enabled in the config even
if it normally could not be enabled because of missing Kconfig
dependencies.
This causes a build break on ARM, when using allyesconfig:
drivers/video/omap2/dss/dss.c: In function 'dss_calc_clock_div':
drivers/video/omap2/dss/dss.c:572:20: error: 'CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK' undeclared (first use in this function)
drivers/video/omap2/dss/dss.c:572:20: note: each undeclared identifier is reported only once for each function it appears in
Instead of using select, this patch changes omapdrm to use "depend
on".
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
NeilBrown [Sat, 15 Dec 2012 21:08:03 +0000 (08:08 +1100)]
OMAPDSS: add FEAT_DPI_USES_VDDS_DSI to omap3630_dss_feat_list
commit
195e672a76056478cc79f5c48343164c9237852e
OMAPDSS: DPI: Remove cpu_is_xxxx checks
made the mistake of assuming that cpu_is_omap34xx() is exclusive of
other cpu_is_* predicates whereas it includes cpu_is_omap3630().
So on an omap3630, code that was previously enabled by
if (cpu_is_omap34xx())
is now disabled as
dss_has_feature(FEAT_DPI_USES_VDDS_DSI)
fails.
So add FEAT_DPI_USES_VDDS_DSI to omap3630_dss_feat_list.
Cc: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Satoru Takeuchi [Thu, 14 Feb 2013 00:12:52 +0000 (09:12 +0900)]
efi: Clear EFI_RUNTIME_SERVICES rather than EFI_BOOT by "noefi" boot parameter
There was a serious problem in samsung-laptop that its platform driver is
designed to run under BIOS and running under EFI can cause the machine to
become bricked or can cause Machine Check Exceptions.
Discussion about this problem:
https://bugs.launchpad.net/ubuntu-cdimage/+bug/
1040557
https://bugzilla.kernel.org/show_bug.cgi?id=47121
The patches to fix this problem:
efi: Make 'efi_enabled' a function to query EFI facilities
83e68189745ad931c2afd45d8ee3303929233e7f
samsung-laptop: Disable on EFI hardware
e0094244e41c4d0c7ad69920681972fc45d8ce34
Unfortunately this problem comes back again if users specify "noefi" option.
This parameter clears EFI_BOOT and that driver continues to run even if running
under EFI. Refer to the document, this parameter should clear
EFI_RUNTIME_SERVICES instead.
Documentation/kernel-parameters.txt:
===============================================================================
...
noefi [X86] Disable EFI runtime services support.
...
===============================================================================
Documentation/x86/x86_64/uefi.txt:
===============================================================================
...
- If some or all EFI runtime services don't work, you can try following
kernel command line parameters to turn off some or all EFI runtime
services.
noefi turn off all EFI runtime services
...
===============================================================================
Signed-off-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Link: http://lkml.kernel.org/r/511C2C04.2070108@jp.fujitsu.com
Cc: Matt Fleming <matt.fleming@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cyril Roelandt [Tue, 12 Feb 2013 04:01:53 +0000 (05:01 +0100)]
xen: remove redundant NULL check before unregister_and_remove_pcpu().
unregister_and_remove_pcpu on a NULL pointer is a no-op, so the NULL check in
sync_pcpu can be removed.
Signed-off-by: Cyril Roelandt <tipecaml@gmail.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Jan Beulich [Thu, 24 Jan 2013 13:11:10 +0000 (13:11 +0000)]
x86/xen: don't assume %ds is usable in xen_iret for 32-bit PVOPS.
This fixes CVE-2013-0228 / XSA-42
Drew Jones while working on CVE-2013-0190 found that that unprivileged guest user
in 32bit PV guest can use to crash the > guest with the panic like this:
-------------
general protection fault: 0000 [#1] SMP
last sysfs file: /sys/devices/vbd-51712/block/xvda/dev
Modules linked in: sunrpc ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4
iptable_filter ip_tables ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6
xt_state nf_conntrack ip6table_filter ip6_tables ipv6 xen_netfront ext4
mbcache jbd2 xen_blkfront dm_mirror dm_region_hash dm_log dm_mod [last
unloaded: scsi_wait_scan]
Pid: 1250, comm: r Not tainted 2.6.32-356.el6.i686 #1
EIP: 0061:[<
c0407462>] EFLAGS:
00010086 CPU: 0
EIP is at xen_iret+0x12/0x2b
EAX:
eb8d0000 EBX:
00000001 ECX:
08049860 EDX:
00000010
ESI:
00000000 EDI:
003d0f00 EBP:
b77f8388 ESP:
eb8d1fe0
DS: 0000 ES: 007b FS: 0000 GS: 00e0 SS: 0069
Process r (pid: 1250, ti=
eb8d0000 task=
c2953550 task.ti=
eb8d0000)
Stack:
00000000 0027f416 00000073 00000206 b77f8364 0000007b 00000000 00000000
Call Trace:
Code: c3 8b 44 24 18 81 4c 24 38 00 02 00 00 8d 64 24 30 e9 03 00 00 00
8d 76 00 f7 44 24 08 00 00 02 80 75 33 50 b8 00 e0 ff ff 21 e0 <8b> 40
10 8b 04 85 a0 f6 ab c0 8b 80 0c b0 b3 c0 f6 44 24 0d 02
EIP: [<
c0407462>] xen_iret+0x12/0x2b SS:ESP 0069:
eb8d1fe0
general protection fault: 0000 [#2]
---[ end trace
ab0d29a492dcd330 ]---
Kernel panic - not syncing: Fatal exception
Pid: 1250, comm: r Tainted: G D ---------------
2.6.32-356.el6.i686 #1
Call Trace:
[<
c08476df>] ? panic+0x6e/0x122
[<
c084b63c>] ? oops_end+0xbc/0xd0
[<
c084b260>] ? do_general_protection+0x0/0x210
[<
c084a9b7>] ? error_code+0x73/
-------------
Petr says: "
I've analysed the bug and I think that xen_iret() cannot cope with
mangled DS, in this case zeroed out (null selector/descriptor) by either
xen_failsafe_callback() or RESTORE_REGS because the corresponding LDT
entry was invalidated by the reproducer. "
Jan took a look at the preliminary patch and came up a fix that solves
this problem:
"This code gets called after all registers other than those handled by
IRET got already restored, hence a null selector in %ds or a non-null
one that got loaded from a code or read-only data descriptor would
cause a kernel mode fault (with the potential of crashing the kernel
as a whole, if panic_on_oops is set)."
The way to fix this is to realize that the we can only relay on the
registers that IRET restores. The two that are guaranteed are the
%cs and %ss as they are always fixed GDT selectors. Also they are
inaccessible from user mode - so they cannot be altered. This is
the approach taken in this patch.
Another alternative option suggested by Jan would be to relay on
the subtle realization that using the %ebp or %esp relative references uses
the %ss segment. In which case we could switch from using %eax to %ebp and
would not need the %ss over-rides. That would also require one extra
instruction to compensate for the one place where the register is used
as scaled index. However Andrew pointed out that is too subtle and if
further work was to be done in this code-path it could escape folks attention
and lead to accidents.
Reviewed-by: Petr Matousek <pmatouse@redhat.com>
Reported-by: Petr Matousek <pmatouse@redhat.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
David S. Miller [Wed, 13 Feb 2013 20:21:06 +0000 (12:21 -0800)]
sparc64: Fix get_user_pages_fast() wrt. THP.
Mostly mirrors the s390 logic, as unlike x86 we don't need the
SetPageReferenced() bits.
On sparc64 we also lack a user/privileged bit in the huge PMDs.
In order to make this work for THP and non-THP builds, some header
file adjustments were necessary. Namely, provide the PMD_HUGE_* bit
defines and the pmd_large() inline unconditionally rather than
protected by TRANSPARENT_HUGEPAGE.
Reported-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 13 Feb 2013 20:15:08 +0000 (12:15 -0800)]
sparc64: Add missing HAVE_ARCH_TRANSPARENT_HUGEPAGE.
This got missed in the cleanups done for the S390 THP
support.
CC: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Wed, 13 Feb 2013 20:21:07 +0000 (12:21 -0800)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
"This is primarily to get those r8169 reverts sorted, but other fixes
have accumulated meanwhile.
1) Revert two r8169 changes to fix suspend/resume for some users,
from Francois Romieu.
2) PCI dma mapping errors in atl1c are not checked for and this cause
hard crashes for some users, from Xiong Huang.
3) In 3.8.x we merged the removal of the EXPERIMENTAL dependency for
'dlm' but the same patch for 'sctp' got lost somewhere, resulting
in the potential for build errors since there are cross
dependencies. From Kees Cook.
4) SCTP's ipv6 socket route validation makes boolean tests
incorrectly, fix from Daniel Borkmann.
5) mac80211 does sizeof(ptr) instead of (sizeof(ptr) * nelem), from
Cong Ding.
6) arp_rcv() can crash on shared non-linear packets, from Eric
Dumazet.
7) Avoid crashes in macvtap by setting ->gso_type consistently in
ixgbe, qlcnic, and bnx2x drivers. From Michael S Tsirkin and
Alexander Duyck.
8) Trinity fuzzer spots infinite loop in __skb_recv_datagram(), fix
from Eric Dumazet.
9) STP protocol frames should use high packet priority, otherwise an
overloaded bridge can get stuck. From Stephen Hemminger.
10) The HTB packet scheduler was converted some time ago to store
internal timestamps in nanoseconds, but we don't convert back into
psched ticks for the user during dumps. Fix from Jiri Pirko.
11) mwl8k channel table doesn't set the .band field properly,
resulting in NULL pointer derefs. Fix from Jonas Gorski.
12) mac80211 doesn't accumulate channels properly during a scan so we
can downgrade heavily to a much less desirable connection speed.
Fix from Johannes Berg.
13) PHY probe failure in stmmac can result in resource leaks and
double MDIO registery later, from Giuseppe CAVALLARO.
14) Correct ipv6 checksumming in ip6t_NPT netfilter module, also fix
address prefix mangling, from YOSHIFUJI Hideaki."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (27 commits)
net, sctp: remove CONFIG_EXPERIMENTAL
net: sctp: sctp_v6_get_dst: fix boolean test in dst cache
batman-adv: Fix NULL pointer dereference in DAT hash collision avoidance
net/macb: fix race with RX interrupt while doing NAPI
atl1c: add error checking for pci_map_single functions
htb: fix values in opt dump
ixgbe: Only set gso_type to SKB_GSO_TCPV4 as RSC does not support IPv6
net: fix infinite loop in __skb_recv_datagram()
net: qmi_wwan: add Yota / Megafon M100-1 4g modem
mwl8k: fix band for supported channels
bridge: set priority of STP packets
mac80211: fix channel selection bug
arp: fix possible crash in arp_rcv()
bnx2x: set gso_type
qlcnic: set gso_type
ixgbe: fix gso type
stmmac: mdio register has to fail if the phy is not found
stmmac: fix macro used for debugging the xmit
Revert "r8169: enable internal ASPM and clock request settings".
Revert "r8169: enable ALDPS for power saving".
...
Linus Torvalds [Wed, 13 Feb 2013 20:19:49 +0000 (12:19 -0800)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Peter Anvin:
"One (hopefully) last batch of x86 fixes. You asked for the patch by
patch justifications, so here they are:
x86, MCE: Retract most UAPI exports
This one unexports from userspace a bunch of definitions which should
never have been exported. We really don't want to create an
accidental legacy here.
x86, doc: Add a bootloader ID for OVMF
This is a documentation-only patch, just recording the official
assignment of a boot loader ID.
x86: Do not leak kernel page mapping locations
Security: avoid making it needlessly easy for user space to probe the
kernel memory layout.
x86/mm: Check if PUD is large when validating a kernel address
Prevent failures using /proc/kcore when using 1G pages.
x86/apic: Work around boot failure on HP ProLiant DL980 G7 Server systems
Works around a BIOS problem causing boot failures on affected hardware."
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Check if PUD is large when validating a kernel address
x86/apic: Work around boot failure on HP ProLiant DL980 G7 Server systems
x86, doc: Add a bootloader ID for OVMF
x86: Do not leak kernel page mapping locations
x86, MCE: Retract most UAPI exports
Wolfram Sang [Fri, 8 Feb 2013 19:54:40 +0000 (20:54 +0100)]
MAINTAINERS: change my email and repos
Change to my private email, change to my shiny new kernel.org repos,
and drop outdated entry from the former maintainer. Drop my PCA entry,
too, since it belongs to the I2C realm anyhow.
Signed-off-by: Wolfram Sang <wolfram@the-dreams.de>
Rafael J. Wysocki [Mon, 11 Feb 2013 19:49:49 +0000 (20:49 +0100)]
PCI/PM: Clean up PME state when removing a device
Devices are added to pci_pme_list when drivers use pci_enable_wake()
or pci_wake_from_d3(), but they aren't removed from the list unless
the driver explicitly disables wakeup. Many drivers never disable
wakeup, so their devices remain on the list even after they are
removed, e.g., via hotplug. A subsequent PME poll will oops when
it tries to touch the device.
This patch disables PME# on a device before removing it, which removes
the device from pci_pme_list. This is safe even if the device never
had PME# enabled.
This oops can be triggered by unplugging a Thunderbolt ethernet adapter
on a Macbook Pro, as reported by Daniel below.
[bhelgaas: changelog]
Reference: http://lkml.kernel.org/r/CAMVG2svG21yiM1wkH4_2pen2n+cr2-Zv7TbH3Gj+8MwevZjDbw@mail.gmail.com
Reported-and-tested-by: Daniel J Blueman <daniel@quora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: stable@vger.kernel.org
Kees Cook [Wed, 13 Feb 2013 00:24:56 +0000 (16:24 -0800)]
net, sctp: remove CONFIG_EXPERIMENTAL
This config item has not carried much meaning for a while now and is
almost always enabled by default. As agreed during the Linux kernel
summit, remove it.
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Acked-by: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Tue, 12 Feb 2013 13:30:16 +0000 (13:30 +0000)]
net: sctp: sctp_v6_get_dst: fix boolean test in dst cache
We walk through the bind address list and try to get the best source
address for a given destination. However, currently, we take the
'continue' path of the loop when an entry is invalid (!laddr->valid)
*and* the entry state does not equal SCTP_ADDR_SRC (laddr->state !=
SCTP_ADDR_SRC).
Thus, still, invalid entries with SCTP_ADDR_SRC might not 'continue'
as well as valid entries with SCTP_ADDR_{NEW, SRC, DEL}, with a possible
false baddr and matchlen as a result, causing in worst case dst route
to be false or possibly NULL.
This test should actually be a '||' instead of '&&'. But lets fix it
and make this a bit easier to read by having the condition the same way
as similarly done in sctp_v4_get_dst.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pau Koning [Tue, 12 Feb 2013 00:18:45 +0000 (00:18 +0000)]
batman-adv: Fix NULL pointer dereference in DAT hash collision avoidance
An entry in DAT with the hashed position of 0 can cause a NULL pointer
dereference when the first entry is checked by batadv_choose_next_candidate.
This first candidate automatically has the max value of 0 and the max_orig_node
of NULL. Not checking max_orig_node for NULL in batadv_is_orig_node_eligible
will lead to a NULL pointer dereference when checking for the lowest address.
This problem was added in
785ea1144182c341b8b85b0f8180291839d176a8
("batman-adv: Distributed ARP Table - create DHT helper functions").
Signed-off-by: Pau Koning <paukoning@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nicolas Ferre [Tue, 12 Feb 2013 10:08:48 +0000 (11:08 +0100)]
net/macb: fix race with RX interrupt while doing NAPI
When interrupts are disabled, an RX condition can occur but
it is not reported when enabling interrupts again. We need to check
RSR and use napi_reschedule() if condition is met.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Huang, Xiong [Mon, 11 Feb 2013 14:44:40 +0000 (14:44 +0000)]
atl1c: add error checking for pci_map_single functions
it is reported that code hit DMA-API errors on 3.8-rc6+,
(see https://bugzilla.redhat.com/show_bug.cgi?id=908436, and
https://bugzilla.redhat.com/show_bug.cgi?id=908550)
this patch just adds error handler for
pci_map_single and skb_frag_dma_map.
Signed-off-by: xiong <xiong@qca.qualcomm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mel Gorman [Mon, 11 Feb 2013 14:52:36 +0000 (14:52 +0000)]
x86/mm: Check if PUD is large when validating a kernel address
A user reported the following oops when a backup process reads
/proc/kcore:
BUG: unable to handle kernel paging request at
ffffbb00ff33b000
IP: [<
ffffffff8103157e>] kern_addr_valid+0xbe/0x110
[...]
Call Trace:
[<
ffffffff811b8aaa>] read_kcore+0x17a/0x370
[<
ffffffff811ad847>] proc_reg_read+0x77/0xc0
[<
ffffffff81151687>] vfs_read+0xc7/0x130
[<
ffffffff811517f3>] sys_read+0x53/0xa0
[<
ffffffff81449692>] system_call_fastpath+0x16/0x1b
Investigation determined that the bug triggered when reading
system RAM at the 4G mark. On this system, that was the first
address using 1G pages for the virt->phys direct mapping so the
PUD is pointing to a physical address, not a PMD page.
The problem is that the page table walker in kern_addr_valid() is
not checking pud_large() and treats the physical address as if
it was a PMD. If it happens to look like pmd_none then it'll
silently fail, probably returning zeros instead of real data. If
the data happens to look like a present PMD though, it will be
walked resulting in the oops above.
This patch adds the necessary pud_large() check.
Unfortunately the problem was not readily reproducible and now
they are running the backup program without accessing
/proc/kcore so the patch has not been validated but I think it
makes sense.
Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.coM>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: stable@vger.kernel.org
Cc: linux-mm@kvack.org
Link: http://lkml.kernel.org/r/20130211145236.GX21389@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Linus Torvalds [Wed, 13 Feb 2013 00:20:07 +0000 (16:20 -0800)]
Merge branch 'autofs-fix' of git://git./linux/kernel/git/deller/parisc-linux into akpm
Pull hp parisc automounter fix from Helge Deller:
"This unbreaks automounter support for the parisc architecture (and
probably aarch64 as well).""
* 'autofs-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
unbreak automounter support on 64-bit kernel with 32-bit userspace (v2)
Linus Torvalds [Wed, 13 Feb 2013 00:16:29 +0000 (16:16 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/s390/linux into akpm
Pull s390 regression fix from Martin Schwidefsky:
"The recent fix for the s390 sched_clock() function uncovered yet
another bug in s390_next_ktime which causes an endless loop in KVM.
This regression should be fixed before v3.8.
I keep the fingers crossed that this is the last one for v3.8."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/timer: avoid overflow when programming clock comparator
Linus Torvalds [Wed, 13 Feb 2013 00:15:39 +0000 (16:15 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/gerg/m68knommu into akpm
Pull m68knommu fix from Greg Ungerer:
"This contains a single critical fix for the non-MMU m68k platforms.
The change of the kernel exec code path has revealed a problem in the
start thread code that causes crashing on boot. This is the fix for
it."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68knommu: fix trap on execing /bin/init
Jiri Pirko [Tue, 12 Feb 2013 00:12:00 +0000 (00:12 +0000)]
htb: fix values in opt dump
in htb_change_class() cl->buffer and cl->buffer are stored in ns.
So in dump, convert them back to psched ticks.
Note this was introduced by:
commit
56b765b79e9a78dc7d3f8850ba5e5567205a3ecd
htb: improved accuracy at high rates
Please consider this for -net/-stable.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Tue, 12 Feb 2013 23:13:42 +0000 (15:13 -0800)]
Merge branch 'stable' of git://git./linux/kernel/git/cmetcalf/linux-tile into akpm
Pull tile bugfixes from Chris Metcalf:
"This includes a variety of minor bug fixes, mostly to do with testing
"make allyesconfig", "make allmodconfig", "make allnoconfig", inspired
to Tejun Heo's observation about Kconfig.freezer not being included.
The largest changes are just syntax changes removing the tile-specific
use of a macro named INT_MASK, which is way too commonly redefined
throughout driver code"
* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
tile: tag some code with #ifdef CONFIG_COMPAT
tile: fix memcpy_*io functions for allnoconfig
tile: export a handful of symbols appropriately
drm: fix compile failure by including <linux/swiotlb.h>
tile: avoid defining INT_MASK macro in <arch/interrupts.h>
tile: provide "screen_info" when enabling VT
drivers/input/joystick/analog.c: enable precise timer
tile: include kernel/Kconfig.freezer in tile Kconfig
tile: remove an unused variable in copy_thread()
Linus Torvalds [Tue, 12 Feb 2013 23:12:24 +0000 (15:12 -0800)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/arm/arm-soc into akpm
Pull ARM SoC fixes from Olof Johansson:
"We had a number of fixes queued up, but taking a strict pass-through
and weeding out any that either have been broken for a while, or are
for platforms that need out-of-tree code to be useful anyway, or other
fixes for problems that few users are likely to see in real life, only
this short branch of patches remains.
The three patches here are to make SMP boot work on the Calxeda
platforms again. Some of the rework for cpuids on 3.8 broke it (and
it was discovered late, unfortunately)."
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: highbank: mask cluster id from cpu_logical_map
ARM: scu: mask cluster id from cpu_logical_map
ARM: scu: add empty scu_enable for !CONFIG_SMP
Marek Szyprowski [Tue, 12 Feb 2013 21:46:24 +0000 (13:46 -0800)]
mm: cma: fix accounting of CMA pages placed in high memory
The total number of low memory pages is determined as totalram_pages -
totalhigh_pages, so without this patch all CMA pageblocks placed in
highmem were accounted to low memory.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Minchan Kim <minchan.kim@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Eric W. Biederman [Tue, 12 Feb 2013 21:46:23 +0000 (13:46 -0800)]
kernel/pid.c: reenable interrupts when alloc_pid() fails because init has exited
We're forgetting to reenable local interrupts on an error path.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Reported-by: Josh Boyer <jwboyer@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Glauber Costa [Tue, 12 Feb 2013 21:46:22 +0000 (13:46 -0800)]
memcg: fix kmemcg registration for late caches
The designed workflow for the caches in kmemcg is: register it with
memcg_register_cache() if kmemcg is already available or later on when a
new kmemcg appears at memcg_update_cache_sizes() which will handle all
caches in the system. The caches created at boot time will be handled
by the later, and the memcg-caches as well as any system caches that are
registered later on by the former.
There is a bug, however, in memcg_register_cache: we correctly set up
the array size, but do not mark the cache as a root cache.
This means that allocations for any cache appearing late in the game
will see memcg->memcg_params->is_root_cache == false, and in particular,
trigger VM_BUG_ON(!cachep->memcg_params->is_root_cache) in
__memcg_kmem_cache_get.
The obvious fix is to include the missing assignment.
Signed-off-by: Glauber Costa <glommer@parallels.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Gerald Schaefer [Tue, 12 Feb 2013 21:46:20 +0000 (13:46 -0800)]
mm: don't overwrite mm->def_flags in do_mlockall()
With commit
8e72033f2a48 ("thp: make MADV_HUGEPAGE check for
mm->def_flags") the VM_NOHUGEPAGE flag may be set on s390 in
mm->def_flags for certain processes, to prevent future thp mappings.
This would be overwritten by do_mlockall(), which sets it back to 0 with
an optional VM_LOCKED flag set.
To fix this, instead of overwriting mm->def_flags in do_mlockall(), only
the VM_LOCKED flag should be set or cleared.
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Reported-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Walleij [Tue, 12 Feb 2013 21:46:19 +0000 (13:46 -0800)]
drivers/rtc/rtc-pl031.c: restore ST variant functionality
Commit
e7e034e18a0a ("drivers/rtc/rtc-pl031.c: fix the missing operation
on enable") accidentally broke the ST variants of PL031.
The bit that is being poked as "clockwatch" enable bit for the ST
variants does the work of bit 0 on this variant. Bit 0 is used for a
clock divider on the ST variants, and setting it to 1 will affect
timekeeping in a very bad way.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Mian Yousaf KAUKAB <mian.yousaf.kaukab@stericsson.com>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David S. Miller [Tue, 12 Feb 2013 21:11:09 +0000 (16:11 -0500)]
Merge branch 'for-davem' of git://git./linux/kernel/git/linville/wireless
John W. Linville says:
====================
Here is another handful of late-breaking fixes intended for the 3.8
stream... Hopefully the will still make it! :-)
There are three mac80211 fixes pulled from Johannes:
"Here are three fixes still for the 3.8 stream, the fix from Cong Ding
for the bad sizeof (Stephen Hemminger had pointed it out before but I'd
promptly forgotten), a mac80211 managed-mode channel context usage fix
where a downgrade would never stop until reaching non-HT and a bug in
the channel determination that could cause invalid channels like HT40+
on channel 11 to be used."
Also included is a mwl8k fix that avoids an oops when using mwl8k
devices that only support the 5 GHz band.
Please let me know if there are problems!
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Duyck [Tue, 12 Feb 2013 09:45:44 +0000 (09:45 +0000)]
ixgbe: Only set gso_type to SKB_GSO_TCPV4 as RSC does not support IPv6
The original fix that was applied for setting gso_type required more change
than necessary because it was assumed ixgbe does RSC on IPv6 frames and this
is not correct. RSC is only supported with IPv4/TCP frames only. As such we
can simplify the fix and avoid the unnecessary move of eth_type_trans.
The previous patch "ixgbe: fix gso type" and this patch reduce the entire fix
to one line that sets gso_type to TCPV4 if the frame is RSC.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Tue, 12 Feb 2013 06:16:53 +0000 (06:16 +0000)]
net: fix infinite loop in __skb_recv_datagram()
Tommi was fuzzing with trinity and reported the following problem :
commit
3f518bf745 (datagram: Add offset argument to __skb_recv_datagram)
missed that a raw socket receive queue can contain skbs with no payload.
We can loop in __skb_recv_datagram() with MSG_PEEK mode, because
wait_for_packet() is not prepared to skip these skbs.
[ 83.541011] INFO: rcu_sched detected stalls on CPUs/tasks: {}
(detected by 0, t=26002 jiffies, g=27673, c=27672, q=75)
[ 83.541011] INFO: Stall ended before state dump start
[ 108.067010] BUG: soft lockup - CPU#0 stuck for 22s! [trinity-child31:2847]
...
[ 108.067010] Call Trace:
[ 108.067010] [<
ffffffff818cc103>] __skb_recv_datagram+0x1a3/0x3b0
[ 108.067010] [<
ffffffff818cc33d>] skb_recv_datagram+0x2d/0x30
[ 108.067010] [<
ffffffff819ed43d>] rawv6_recvmsg+0xad/0x240
[ 108.067010] [<
ffffffff818c4b04>] sock_common_recvmsg+0x34/0x50
[ 108.067010] [<
ffffffff818bc8ec>] sock_recvmsg+0xbc/0xf0
[ 108.067010] [<
ffffffff818bf31e>] sys_recvfrom+0xde/0x150
[ 108.067010] [<
ffffffff81ca4329>] system_call_fastpath+0x16/0x1b
Reported-by: Tommi Rantala <tt.rantala@gmail.com>
Tested-by: Tommi Rantala <tt.rantala@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Pavel Emelyanov <xemul@parallels.com>
Acked-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bjørn Mork [Tue, 12 Feb 2013 02:42:50 +0000 (02:42 +0000)]
net: qmi_wwan: add Yota / Megafon M100-1 4g modem
Interface layout:
00 CD-ROM
01 debug COM port
02 AP control port
03 modem
04 usb-ethernet
Bus=01 Lev=02 Prnt=02 Port=01 Cnt=02 Dev#= 4 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=0408 ProdID=ea42 Rev= 0.00
S: Manufacturer=Qualcomm, Incorporated
S: Product=Qualcomm CDMA Technologies MSM
S: SerialNumber=353568051xxxxxx
C:* #Ifs= 5 Cfg#= 1 Atr=e0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms
I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E: Ad=84(I) Atr=03(Int.) MxPS= 64 Ivl=2ms
E: Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms
I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E: Ad=86(I) Atr=03(Int.) MxPS= 64 Ivl=2ms
E: Ad=87(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Tue, 12 Feb 2013 16:17:35 +0000 (08:17 -0800)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Three nouveau fixes, all user visible issues, and one radeon
regression fix"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/radeon: enforce use of radeon_get_ib_value when reading user cmd
drm/nouveau: add lockdep annotations
drm/nv50/fb: Fix nullptr-deref on IGPs
drm/nouveau: use different register to wait for secret scrubber
John W. Linville [Tue, 12 Feb 2013 15:41:46 +0000 (10:41 -0500)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless into for-davem
Jerome Glisse [Mon, 11 Feb 2013 13:57:18 +0000 (08:57 -0500)]
drm/radeon: enforce use of radeon_get_ib_value when reading user cmd
When ever parsing cmd buffer supplied by userspace we need to use
radeon_get_ib_value rather than directly accessing the ib as the user
cmd might not yet be copied into the ib thus the parser might read
value that does not correspond to what user is sending and possibly
allowing user to send malicious command undected.
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Jonas Gorski [Fri, 8 Feb 2013 15:07:25 +0000 (16:07 +0100)]
mwl8k: fix band for supported channels
The band field for the supported channels were left unpopulated, making
them default to 0 == IEEE80211_BAND_2GHZ, even for the 5GHz channels.
This resulted in null pointer accesses if anything tries to access
wiphy->bands[channel->band] of a 5GHz channel on 5GHz only cards, since
wiphy->bands[2GHZ] is NULL for them (e.g. cfg80211_chandef_usable does).
Example kernel OOPS:
[ 665.669993] Unable to handle kernel NULL pointer dereference at virtual address
00000016
[ 665.678194] pgd =
c6d58000
[ 665.680941] [
00000016] *pgd=
06f8a831, *pte=
00000000, *ppte=
00000000
[ 665.687303] Internal error: Oops: 17 [#1]
(...)
[ 666.116373] Backtrace:
[ 666.118866] [<
bf0368dc>] (cfg80211_chandef_usable+0x0/0x1bc [cfg80211]) from [<
bf025e64>] (nl80211_leave_mesh+0x244/0x264 [cfg80211])
[ 666.130919] r7:
c6d12100 r6:
0000143c r5:
c0611c48 r4:
c0611b98
[ 666.136668] [<
bf025d84>] (nl80211_leave_mesh+0x164/0x264 [cfg80211]) from [<
bf02634c>] (nl80211_remain_on_channel+0x2a0/0x358 [cfg80211])
[ 666.149074] r7:
c6d12000 r6:
c6d12000 r5:
c6f4f368 r4:
00000003
[ 666.154814] [<
bf0262ec>] (nl80211_remain_on_channel+0x240/0x358 [cfg80211]) from [<
bf02ddb0>] (nl80211_set_wiphy+0x264/0x560 [cfg80211])
[ 666.167150] [<
bf02db4c>] (nl80211_set_wiphy+0x0/0x560 [cfg80211]) from [<
c01f94e0>] (genl_rcv_msg+0x1b8/0x1f8)
[ 666.177205] [<
c01f9328>] (genl_rcv_msg+0x0/0x1f8) from [<
c01f89a0>] (netlink_rcv_skb+0x58/0xb4)
[ 666.185949] [<
c01f8948>] (netlink_rcv_skb+0x0/0xb4) from [<
c01f931c>] (genl_rcv+0x20/0x2c)
[ 666.194251] r6:
c6f70780 r5:
0000002c r4:
c6f70780 r3:
00000001
[ 666.199973] [<
c01f92fc>] (genl_rcv+0x0/0x2c) from [<
c01f8418>] (netlink_unicast+0x154/0x1f4)
[ 666.208449] r4:
c785ea00 r3:
c01f92fc
[ 666.212057] [<
c01f82c4>] (netlink_unicast+0x0/0x1f4) from [<
c01f8790>] (netlink_sendmsg+0x230/0x2b0)
[ 666.221240] [<
c01f8560>] (netlink_sendmsg+0x0/0x2b0) from [<
c01cccf8>] (sock_sendmsg+0x90/0xa4)
[ 666.229986] [<
c01ccc68>] (sock_sendmsg+0x0/0xa4) from [<
c01cdcb0>] (__sys_sendmsg+0x290/0x298)
[ 666.238637] r9:
00000000 r8:
c0611ec8 r6:
0000002c r5:
c0610000 r4:
c0611f64
[ 666.245411] [<
c01cda20>] (__sys_sendmsg+0x0/0x298) from [<
c01cf52c>] (sys_sendmsg+0x44/0x6c)
[ 666.253897] [<
c01cf4e8>] (sys_sendmsg+0x0/0x6c) from [<
c00090a0>] (ret_fast_syscall+0x0/0x2c)
[ 666.262460] r6:
00000000 r5:
beeff96c r4:
00000005
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
John W. Linville [Mon, 11 Feb 2013 19:25:28 +0000 (14:25 -0500)]
Merge branch 'for-john' of git://git./linux/kernel/git/jberg/mac80211
Stephen Hemminger [Mon, 11 Feb 2013 08:22:22 +0000 (08:22 +0000)]
bridge: set priority of STP packets
Spanning Tree Protocol packets should have always been marked as
control packets, this causes them to get queued in the high prirority
FIFO. As Radia Perlman mentioned in her LCA talk, STP dies if bridge
gets overloaded and can't communicate. This is a long-standing bug back
to the first versions of Linux bridge.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stoney Wang [Thu, 7 Feb 2013 18:53:02 +0000 (10:53 -0800)]
x86/apic: Work around boot failure on HP ProLiant DL980 G7 Server systems
When a HP ProLiant DL980 G7 Server boots a regular kernel,
there will be intermittent lost interrupts which could
result in a hang or (in extreme cases) data loss.
The reason is that this system only supports x2apic physical
mode, while the kernel boots with a logical-cluster default
setting.
This bug can be worked around by specifying the "x2apic_phys" or
"nox2apic" boot option, but we want to handle this system
without requiring manual workarounds.
The BIOS sets ACPI_FADT_APIC_PHYSICAL in FADT table.
As all apicids are smaller than 255, BIOS need to pass the
control to the OS with xapic mode, according to x2apic-spec,
chapter 2.9.
Current code handle x2apic when BIOS pass with xapic mode
enabled:
When user specifies x2apic_phys, or FADT indicates PHYSICAL:
1. During madt oem check, apic driver is set with xapic logical
or xapic phys driver at first.
2. enable_IR_x2apic() will enable x2apic_mode.
3. if user specifies x2apic_phys on the boot line, x2apic_phys_probe()
will install the correct x2apic phys driver and use x2apic phys mode.
Otherwise it will skip the driver will let x2apic_cluster_probe to
take over to install x2apic cluster driver (wrong one) even though FADT
indicates PHYSICAL, because x2apic_phys_probe does not check
FADT PHYSICAL.
Add checking x2apic_fadt_phys in x2apic_phys_probe() to fix the
problem.
Signed-off-by: Stoney Wang <song-bo.wang@hp.com>
[ updated the changelog and simplified the code ]
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: stable@kernel.org
Link: http://lkml.kernel.org/r/1360263182-16226-1-git-send-email-yinghai@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Johannes Berg [Sat, 9 Feb 2013 20:46:34 +0000 (21:46 +0100)]
mac80211: fix channel selection bug
When trying to connect to an AP that advertises HT but not
VHT, the mac80211 code erroneously uses the configuration
from the AP as is instead of checking it against regulatory
and local capabilities. This can lead to using an invalid
or even inexistent channel (like 11/HT40+).
Additionally, the return flags from downgrading must be
ORed together, to collect them from all of the downgrades.
Also clarify the message.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
David S. Miller [Mon, 11 Feb 2013 01:44:08 +0000 (20:44 -0500)]
Merge branch 'master' of git://1984.lsi.us.es/nf
Pablo Neira Ayuso says:
====================
The following patchset contains Netfilter/IPVS fixes for 3.8-rc7, they are:
* Fix oops in IPVS state-sync due to releasing a random memory area due
to unitialized pointer, from Dan Carpenter.
* Fix SCTP flow establishment due to bad checksumming mangling in IPVS,
from Daniel Borkmann.
* Three fixes for the recently added IPv6 NPT, all from YOSHIFUJI Hideaki,
with an amendment collapsed into those patches from Ulrich Weber. They
fiix adjustment calculation, fix prefix mangling and ensure LSB of
prefixes are zeroes (as required by RFC).
Specifically, it took me a while to validate the 1's complement arithmetics/
checksumming approach in the IPv6 NPT code.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Fri, 8 Feb 2013 18:48:21 +0000 (18:48 +0000)]
arp: fix possible crash in arp_rcv()
We should call skb_share_check() before pskb_may_pull(), or we
can crash in pskb_expand_head()
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 11 Feb 2013 01:14:46 +0000 (20:14 -0500)]
Merge branch 'gso_type'
Michael S. Tsirkin says:
====================
At the moment, macvtap crashes are observed if macvtap is attached
to an interface with LRO enabled.
The crash in question is BUG() in macvtap_skb_to_vnet_hdr.
This happens because several drivers set gso_size but not gso_type
in incoming skbs.
This didn't use to be the case: with intel cards on 3.2 and older
kernels, with qlogic - on 3.4 and older kernels, so it's a regression if
not a recent one.
The following patches fix this for qlogic, broadcom and intel drivers.
I tested that the patch fixes the crash for ixgbe but
don't have qlogic/broadcom hardware to test.
I also only tested TCPv4.
Please review, and consider for 3.8.
Changes from v1:
- added missing htons as suggested by Eric
- backported the relevant bits from
cbf1de72324a8105ddcc3d9ce9acbc613faea17e for bnx2x
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael S. Tsirkin [Thu, 7 Feb 2013 03:13:22 +0000 (03:13 +0000)]
bnx2x: set gso_type
In LRO mode, bnx2x set gso_size but not gso type.
This leads to crashes in macvtap.
Commit
cbf1de72324a8105ddcc3d9ce9acbc613faea17e
queued for 3.9 includes a more complete fix.
This is a minimal patch to avoid the crash, for 3.8.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael S. Tsirkin [Thu, 7 Feb 2013 03:13:13 +0000 (03:13 +0000)]
qlcnic: set gso_type
qlcnic set gso_size but not gso type. This leads to crashes
in macvtap.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael S. Tsirkin [Thu, 7 Feb 2013 03:13:05 +0000 (03:13 +0000)]
ixgbe: fix gso type
ixgbe set gso_size but not gso_type. This leads to
crashes in macvtap.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Giuseppe CAVALLARO [Wed, 6 Feb 2013 20:47:52 +0000 (20:47 +0000)]
stmmac: mdio register has to fail if the phy is not found
With this patch the stmmac fails in case of the phy device
is not found; w/o this fix the mdio can be register twice when
do down/up the iface and this is not correct.
Reported-by: Stas <stsp@list.ru>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Giuseppe CAVALLARO [Wed, 6 Feb 2013 20:47:51 +0000 (20:47 +0000)]
stmmac: fix macro used for debugging the xmit
This patch fixes the name of the macro used for
debugging the transmit process. I used STMMAC_TX_DEBUG
instead of STMMAC_XMIT_DEBUG.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 11 Feb 2013 00:05:49 +0000 (19:05 -0500)]
Merge branch 'davem.r8169' of git://violet.fr.zoreil.com/romieu/linux
Revert two power saving r8169 changes to fix some regressions
reported.
Reported-by: Jörg Otte <jrg.otte@gmail.com>
Tested-by: Jörg Otte <jrg.otte@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dave Airlie [Sun, 10 Feb 2013 23:40:14 +0000 (09:40 +1000)]
Merge branch 'drm-nouveau-fixes-3.8' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-next
Fixes for one major lockdep warning, one oops reported by a few people, and
fix for a long hang on some gpu engines.
* 'drm-nouveau-fixes-3.8' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
drm/nouveau: add lockdep annotations
drm/nv50/fb: Fix nullptr-deref on IGPs
drm/nouveau: use different register to wait for secret scrubber
Olof Johansson [Sun, 10 Feb 2013 04:55:03 +0000 (20:55 -0800)]
Merge tag 'highbank-fixes-for-3.8' of git://sources.calxeda.com/kernel/linux into fixes
From Rob Herring:
highbank fixes for 3.8
-Compile fix for !SMP
-More cpu cluster id related fixes
* tag 'highbank-fixes-for-3.8' of git://sources.calxeda.com/kernel/linux:
ARM: highbank: mask cluster id from cpu_logical_map
ARM: scu: mask cluster id from cpu_logical_map
ARM: scu: add empty scu_enable for !CONFIG_SMP
Marcin Slusarz [Mon, 4 Feb 2013 20:52:54 +0000 (21:52 +0100)]
drm/nouveau: add lockdep annotations
1) Lockdep thinks all nouveau subdevs belong to the same class and can be
locked in arbitrary order, which is not true (at least in general case).
Tell it to distinguish subdevs by (o)class type.
2) DRM client can be locked under user client lock - tell lockdep to put
DRM client lock in a separate class.
Reported-by: Arend van Spriel <arend@broadcom.com>
Reported-by: Peter Hurley <peter@hurleysoftware.com>
Reported-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Reported-by: Daniel J Blueman <daniel@quora.org>
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: stable@vger.kernel.org [3.7, but needs s/const ofuncs/ofuncs/ to build]
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Francois Romieu [Thu, 1 Nov 2012 16:46:28 +0000 (16:46 +0000)]
Revert "r8169: enable internal ASPM and clock request settings".
This reverts commit
d64ec841517a25f6d468bde9f67e5b4cffdc67c7.
Jörg Otte reported his 8168evl to increase boot time link detection
from 1.6 to 10 s.
Hayes suggests reverting it for the time being.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Hayes Wang <hayeswang@realtek.com>
Cc: Jörg Otte <jrg.otte@gmail.com>
Francois Romieu [Fri, 8 Feb 2013 22:43:20 +0000 (23:43 +0100)]
Revert "r8169: enable ALDPS for power saving".
This reverts commit
e0c075577965d1c01b30038d38bf637b027a1df3.
Jörg Otte reported his 8168evl to fail boot time link detection.
Hayes suggests reverting it for the time being.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Hayes Wang <hayeswang@realtek.com>
Cc: Jörg Otte <jrg.otte@gmail.com>
Linus Torvalds [Fri, 8 Feb 2013 21:20:39 +0000 (08:20 +1100)]
Linux 3.8-rc7
Linus Torvalds [Fri, 8 Feb 2013 21:01:18 +0000 (08:01 +1100)]
Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King:
"I was going to hold these off until v3.8 was out, and send them with a
stable tag, but as everyone else is pushing much bigger fixes which
Linus is accepting, let's save people from the hastle of having to
patch v3.8 back into working or use a stable kernel.
Looking at the diffstat, this really is high value for its size; this
is miniscule compared to how the -rc6 to tip diffstat currently looks.
So, four patches in this set:
- Punit Agrawal reports that the kernel no longer boots on MPCore due
to a new assumption made in the GIC code which isn't true of
earlier GIC designs. This is the biggest change in this set.
- Punit's boot log also revealed a bunch of WARN_ON() dumps caused by
the DT-ification of the GIC support without fixing up non-DT
Realview - which now sees a greater number of interrupts than it
did before.
- A fix for the DMA coherent code from Marek which uses the wrong
check for atomic allocations; this can result in spinlock lockups
or other nasty effects.
- A fix from Will, which will affect all Android based platforms if
not applied (which use the 2G:2G VM split) - this causes
particularly 'make' to misbehave unless this bug is fixed."
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7641/1: memory: fix broken mmap by ensuring TASK_UNMAPPED_BASE is aligned
ARM: DMA mapping: fix bad atomic test
ARM: realview: ensure that we have sufficient IRQs available
ARM: GIC: fix GIC cpumask initialization
Linus Torvalds [Fri, 8 Feb 2013 20:55:24 +0000 (07:55 +1100)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) Revert iwlwifi reclaimed packet tracking, it causes problems for a
bunch of folks. From Emmanuel Grumbach.
2) Work limiting code in brcmsmac wifi driver can clear tx status
without processing the event. From Arend van Spriel.
3) rtlwifi USB driver processes wrong SKB, fix from Larry Finger.
4) l2tp tunnel delete can race with close, fix from Tom Parkin.
5) pktgen_add_device() failures are not checked at all, fix from Cong
Wang.
6) Fix unintentional removal of carrier off from tun_detach(),
otherwise we confuse userspace, from Michael S. Tsirkin.
7) Don't leak socket reference counts and ubufs in vhost-net driver,
from Jason Wang.
8) vmxnet3 driver gets it's initial carrier state wrong, fix from Neil
Horman.
9) Protect against USB networking devices which spam the host with 0
length frames, from Bjørn Mork.
10) Prevent neighbour overflows in ipv6 for locally destined routes,
from Marcelo Ricardo. This is the best short-term fix for this, a
longer term fix has been implemented in net-next.
11) L2TP uses ipv4 datagram routines in it's ipv6 code, whoops. This
mistake is largely because the ipv6 functions don't even have some
kind of prefix in their names to suggest they are ipv6 specific.
From Tom Parkin.
12) Check SYN packet drops properly in tcp_rcv_fastopen_synack(), from
Yuchung Cheng.
13) Fix races and TX skb freeing bugs in via-rhine's NAPI support, from
Francois Romieu and your's truly.
14) Fix infinite loops and divides by zero in TCP congestion window
handling, from Eric Dumazet, Neal Cardwell, and Ilpo Järvinen.
15) AF_PACKET tx ring handling can leak kernel memory to userspace, fix
from Phil Sutter.
16) Fix error handling in ipv6 GRE tunnel transmit, from Tommi Rantala.
17) Protect XEN netback driver against hostile frontend putting garbage
into the rings, don't leak pages in TX GOP checking, and add proper
resource releasing in error path of xen_netbk_get_requests(). From
Ian Campbell.
18) SCTP authentication keys should be cleared out and released with
kzfree(), from Daniel Borkmann.
19) L2TP is a bit too clever trying to maintain skb->truesize, and ends
up corrupting socket memory accounting to the point where packet
sending is halted indefinitely. Just remove the adjustments
entirely, they aren't really needed. From Eric Dumazet.
20) ATM Iphase driver uses a data type with the same name as the S390
headers, rename to fix the build. From Heiko Carstens.
21) Fix a typo in copying the inner network header offset from one SKB
to another, from Pravin B Shelar.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (56 commits)
net: sctp: sctp_endpoint_free: zero out secret key data
net: sctp: sctp_setsockopt_auth_key: use kzfree instead of kfree
atm/iphase: rename fregt_t -> ffreg_t
net: usb: fix regression from FLAG_NOARP code
l2tp: dont play with skb->truesize
net: sctp: sctp_auth_key_put: use kzfree instead of kfree
netback: correct netbk_tx_err to handle wrap around.
xen/netback: free already allocated memory on failure in xen_netbk_get_requests
xen/netback: don't leak pages on failure in xen_netbk_tx_check_gop.
xen/netback: shutdown the ring if it contains garbage.
net: qmi_wwan: add more Huawei devices, including E320
net: cdc_ncm: add another Huawei vendor specific device
ipv6/ip6_gre: fix error case handling in ip6gre_tunnel_xmit()
tcp: fix for zero packets_in_flight was too broad
brcmsmac: rework of mac80211 .flush() callback operation
ssb: unregister gpios before unloading ssb
bcma: unregister gpios before unloading bcma
rtlwifi: Fix scheduling while atomic bug
net: usbnet: fix tx_dropped statistics
tcp: ipv6: Update MIB counters for drops
...
David S. Miller [Fri, 8 Feb 2013 19:55:08 +0000 (14:55 -0500)]
Merge branch 'sctp_keys'
Daniel Borkmann says:
====================
Cryptographically used keys should be zeroed out when our session
ends resp. memory is freed, thus do not leave them somewhere in the
memory.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Fri, 8 Feb 2013 03:04:35 +0000 (03:04 +0000)]
net: sctp: sctp_endpoint_free: zero out secret key data
On sctp_endpoint_destroy, previously used sensitive keying material
should be zeroed out before the memory is returned, as we already do
with e.g. auth keys when released.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Fri, 8 Feb 2013 03:04:34 +0000 (03:04 +0000)]
net: sctp: sctp_setsockopt_auth_key: use kzfree instead of kfree
In sctp_setsockopt_auth_key, we create a temporary copy of the user
passed shared auth key for the endpoint or association and after
internal setup, we free it right away. Since it's sensitive data, we
should zero out the key before returning the memory back to the
allocator. Thus, use kzfree instead of kfree, just as we do in
sctp_auth_key_put().
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Helge Deller [Mon, 4 Feb 2013 19:39:52 +0000 (19:39 +0000)]
unbreak automounter support on 64-bit kernel with 32-bit userspace (v2)
automount-support is broken on the parisc architecture, because the existing
#if list does not include a check for defined(__hppa__). The HPPA (parisc)
architecture is similiar to other 64bit Linux targets where we have to define
autofs_wqt_t (which is passed back and forth to user space) as int type which
has a size of 32bit across 32 and 64bit kernels.
During the discussion on the mailing list, H. Peter Anvin suggested to invert
the #if list since only specific platforms (specifically those who do not have
a 32bit userspace, like IA64 and Alpha) should have autofs_wqt_t as unsigned
long type.
This suggestion is probably the best way to go, since Arm64 (and maybe others?)
seems to have a non-working automounter. So in the long run even for other new
upcoming architectures this inverted check seem to be the best solution, since
it will not require them to change this #if again (unless they are 64bit only).
Signed-off-by: Helge Deller <deller@gmx.de>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Acked-by: Ian Kent <raven@themaw.net>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
CC: James Bottomley <James.Bottomley@HansenPartnership.com>
CC: Rolf Eike Beer <eike-kernel@sf-tec.de>
Heiko Carstens [Fri, 8 Feb 2013 00:19:11 +0000 (00:19 +0000)]
atm/iphase: rename fregt_t -> ffreg_t
We have conflicting type qualifiers for "freg_t" in s390's ptrace.h and the
iphase atm device driver, which causes the compile error below.
Unfortunately the s390 typedef can't be renamed, since it's a user visible api,
nor can I change the include order in s390 code to avoid the conflict.
So simply rename the iphase typedef to a new name. Fixes this compile error:
In file included from drivers/atm/iphase.c:66:0:
drivers/atm/iphase.h:639:25: error: conflicting type qualifiers for 'freg_t'
In file included from next/arch/s390/include/asm/ptrace.h:9:0,
from next/arch/s390/include/asm/lowcore.h:12,
from next/arch/s390/include/asm/thread_info.h:30,
from include/linux/thread_info.h:54,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:50,
from include/linux/seqlock.h:29,
from include/linux/time.h:5,
from include/linux/stat.h:18,
from include/linux/module.h:10,
from drivers/atm/iphase.c:43:
next/arch/s390/include/uapi/asm/ptrace.h:197:3: note: previous declaration of 'freg_t' was here
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: chas williams - CONTRACTOR <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
Chris Metcalf [Fri, 1 Feb 2013 20:31:25 +0000 (15:31 -0500)]
tile: tag some code with #ifdef CONFIG_COMPAT
This allows us to disable COMPAT mode without a link error.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Chris Metcalf [Fri, 1 Feb 2013 20:21:41 +0000 (15:21 -0500)]
tile: fix memcpy_*io functions for allnoconfig
On tilepro without CONFIG_PCI, we can't provide inlines of these
functions, as we don't have readl/writel.
In addition, fix memset_io() signature to take a volatile void *.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Chris Metcalf [Fri, 1 Feb 2013 20:06:06 +0000 (15:06 -0500)]
tile: export a handful of symbols appropriately
This was shown up by running with "allmodconfig". I used
EXPORT_SYMBOL() to match existing conventions in files that
were already exporting symbols, or that were exported that way
by other architectures, and otherwise EXPORT_SYMBOL_GPL().
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
H. Peter Anvin [Fri, 8 Feb 2013 17:19:33 +0000 (09:19 -0800)]
x86, doc: Add a bootloader ID for OVMF
OVMF (an implementation of UEFI based on TianoCore used in virtual
environments) now has the ability to boot Linux natively; this is used
for "qemu -kernel" and similar things in a UEFI environment.
Accordingly, assign it a bootloader ID.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Will Deacon [Fri, 8 Feb 2013 11:52:29 +0000 (12:52 +0100)]
ARM: 7641/1: memory: fix broken mmap by ensuring TASK_UNMAPPED_BASE is aligned
We have received multiple reports of mmap failures when running with a
2:2 vm split. These manifest as either -EINVAL with a non page-aligned
address (ending 0xaaa) or a SEGV, depending on the application. The
issue is commonly observed in children of make, which appears to use
bottom-up mmap (assumedly because it changes the stack rlimit).
Further investigation reveals that this regression was triggered by
394ef6403abc ("mm: use vm_unmapped_area() on arm architecture"), whereby
TASK_UNMAPPED_BASE is no longer page-aligned for bottom-up mmap, causing
get_unmapped_area to choke on misaligned addressed.
This patch fixes the problem by defining TASK_UNMAPPED_BASE in terms of
TASK_SIZE and explicitly aligns the result to 16M, matching the other
end of the heap.
Acked-by: Nicolas Pitre <nico@linaro.org>
Reported-by: Steve Capper <steve.capper@arm.com>
Reported-by: Jean-Francois Moine <moinejf@free.fr>
Reported-by: Christoffer Dall <cdall@cs.columbia.edu>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Wed, 30 Jan 2013 23:55:35 +0000 (23:55 +0000)]
ARM: DMA mapping: fix bad atomic test
Realview fails to boot with this warning:
BUG: spinlock lockup suspected on CPU#0, init/1
lock: 0xcf8bde10, .magic:
dead4ead, .owner: init/1, .owner_cpu: 0
Backtrace:
[<
c00185d8>] (dump_backtrace+0x0/0x10c) from [<
c03294e8>] (dump_stack+0x18/0x1c) r6:
cf8bde10 r5:
cf83d1c0 r4:
cf8bde10 r3:
cf83d1c0
[<
c03294d0>] (dump_stack+0x0/0x1c) from [<
c018926c>] (spin_dump+0x84/0x98)
[<
c01891e8>] (spin_dump+0x0/0x98) from [<
c0189460>] (do_raw_spin_lock+0x100/0x198)
[<
c0189360>] (do_raw_spin_lock+0x0/0x198) from [<
c032cbac>] (_raw_spin_lock+0x3c/0x44)
[<
c032cb70>] (_raw_spin_lock+0x0/0x44) from [<
c01c9224>] (pl011_console_write+0xe8/0x11c)
[<
c01c913c>] (pl011_console_write+0x0/0x11c) from [<
c002aea8>] (call_console_drivers.clone.7+0xdc/0x104)
[<
c002adcc>] (call_console_drivers.clone.7+0x0/0x104) from [<
c002b320>] (console_unlock+0x2e8/0x454)
[<
c002b038>] (console_unlock+0x0/0x454) from [<
c002b8b4>] (vprintk_emit+0x2d8/0x594)
[<
c002b5dc>] (vprintk_emit+0x0/0x594) from [<
c0329718>] (printk+0x3c/0x44)
[<
c03296dc>] (printk+0x0/0x44) from [<
c002929c>] (warn_slowpath_common+0x28/0x6c)
[<
c0029274>] (warn_slowpath_common+0x0/0x6c) from [<
c0029304>] (warn_slowpath_null+0x24/0x2c)
[<
c00292e0>] (warn_slowpath_null+0x0/0x2c) from [<
c0070ab0>] (lockdep_trace_alloc+0xd8/0xf0)
[<
c00709d8>] (lockdep_trace_alloc+0x0/0xf0) from [<
c00c0850>] (kmem_cache_alloc+0x24/0x11c)
[<
c00c082c>] (kmem_cache_alloc+0x0/0x11c) from [<
c00bb044>] (__get_vm_area_node.clone.24+0x7c/0x16c)
[<
c00bafc8>] (__get_vm_area_node.clone.24+0x0/0x16c) from [<
c00bb7b8>] (get_vm_area_caller+0x48/0x54)
[<
c00bb770>] (get_vm_area_caller+0x0/0x54) from [<
c0020064>] (__alloc_remap_buffer.clone.15+0x38/0xb8)
[<
c002002c>] (__alloc_remap_buffer.clone.15+0x0/0xb8) from [<
c0020244>] (__dma_alloc+0x160/0x2c8)
[<
c00200e4>] (__dma_alloc+0x0/0x2c8) from [<
c00204d8>] (arm_dma_alloc+0x88/0xa0)[<
c0020450>] (arm_dma_alloc+0x0/0xa0) from [<
c00beb00>] (dma_pool_alloc+0xcc/0x1a8)
[<
c00bea34>] (dma_pool_alloc+0x0/0x1a8) from [<
c01a9d14>] (pl08x_fill_llis_for_desc+0x28/0x568)
[<
c01a9cec>] (pl08x_fill_llis_for_desc+0x0/0x568) from [<
c01aab8c>] (pl08x_prep_slave_sg+0x258/0x3b0)
[<
c01aa934>] (pl08x_prep_slave_sg+0x0/0x3b0) from [<
c01c9f74>] (pl011_dma_tx_refill+0x140/0x288)
[<
c01c9e34>] (pl011_dma_tx_refill+0x0/0x288) from [<
c01ca748>] (pl011_start_tx+0xe4/0x120)
[<
c01ca664>] (pl011_start_tx+0x0/0x120) from [<
c01c54a4>] (__uart_start+0x48/0x4c)
[<
c01c545c>] (__uart_start+0x0/0x4c) from [<
c01c632c>] (uart_start+0x2c/0x3c)
[<
c01c6300>] (uart_start+0x0/0x3c) from [<
c01c795c>] (uart_write+0xcc/0xf4)
[<
c01c7890>] (uart_write+0x0/0xf4) from [<
c01b0384>] (n_tty_write+0x1c0/0x3e4)
[<
c01b01c4>] (n_tty_write+0x0/0x3e4) from [<
c01acfe8>] (tty_write+0x144/0x240)
[<
c01acea4>] (tty_write+0x0/0x240) from [<
c01ad17c>] (redirected_tty_write+0x98/0xac)
[<
c01ad0e4>] (redirected_tty_write+0x0/0xac) from [<
c00c371c>] (vfs_write+0xbc/0x150)
[<
c00c3660>] (vfs_write+0x0/0x150) from [<
c00c39c0>] (sys_write+0x4c/0x78)
[<
c00c3974>] (sys_write+0x0/0x78) from [<
c0014460>] (ret_fast_syscall+0x0/0x3c)
This happens because the DMA allocation code is not respecting atomic
allocations correctly.
GFP flags should not be tested for GFP_ATOMIC to determine if an
atomic allocation is being requested. GFP_ATOMIC is not a flag but
a value. The GFP bitmask flags are all prefixed with __GFP_.
The rest of the kernel tests for __GFP_WAIT not being set to indicate
an atomic allocation. We need to do the same.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Wed, 30 Jan 2013 23:54:26 +0000 (23:54 +0000)]
ARM: realview: ensure that we have sufficient IRQs available
Realview EB with a rev B MPcore tile results in lots of warnings at
boot because it can't allocate enough IRQs. Fix this by increasing
the number of available IRQs.
WARNING: at /home/rmk/git/linux-rmk/arch/arm/common/gic.c:757 gic_init_bases+0x12c/0x2ec()
Cannot allocate irq_descs @ IRQ96, assuming pre-allocated
Modules linked in:
Backtrace:
[<
c00185d8>] (dump_backtrace+0x0/0x10c) from [<
c03294e8>] (dump_stack+0x18/0x1c) r6:
000002f5 r5:
c042c62c r4:
c044ff40 r3:
c045f240
[<
c03294d0>] (dump_stack+0x0/0x1c) from [<
c00292c8>] (warn_slowpath_common+0x54/0x6c)
[<
c0029274>] (warn_slowpath_common+0x0/0x6c) from [<
c0029384>] (warn_slowpath_fmt+0x38/0x40)
[<
c002934c>] (warn_slowpath_fmt+0x0/0x40) from [<
c042c62c>] (gic_init_bases+0x12c/0x2ec)
[<
c042c500>] (gic_init_bases+0x0/0x2ec) from [<
c042cdc8>] (gic_init_irq+0x8c/0xd8)
[<
c042cd3c>] (gic_init_irq+0x0/0xd8) from [<
c042827c>] (init_IRQ+0x1c/0x24)
[<
c0428260>] (init_IRQ+0x0/0x24) from [<
c04256c8>] (start_kernel+0x1a4/0x300)
[<
c0425524>] (start_kernel+0x0/0x300) from [<
70008070>] (0x70008070)
---[ end trace
1b75b31a2719ed1c ]---
------------[ cut here ]------------
WARNING: at /home/rmk/git/linux-rmk/kernel/irq/irqdomain.c:234 irq_domain_add_legacy+0x80/0x140()
Modules linked in:
Backtrace:
[<
c00185d8>] (dump_backtrace+0x0/0x10c) from [<
c03294e8>] (dump_stack+0x18/0x1c) r6:
000000ea r5:
c0081a38 r4:
00000000 r3:
c045f240
[<
c03294d0>] (dump_stack+0x0/0x1c) from [<
c00292c8>] (warn_slowpath_common+0x54/0x6c)
[<
c0029274>] (warn_slowpath_common+0x0/0x6c) from [<
c0029304>] (warn_slowpath_null+0x24/0x2c)
[<
c00292e0>] (warn_slowpath_null+0x0/0x2c) from [<
c0081a38>] (irq_domain_add_legacy+0x80/0x140)
[<
c00819b8>] (irq_domain_add_legacy+0x0/0x140) from [<
c042c64c>] (gic_init_bases+0x14c/0x2ec)
[<
c042c500>] (gic_init_bases+0x0/0x2ec) from [<
c042cdc8>] (gic_init_irq+0x8c/0xd8)
[<
c042cd3c>] (gic_init_irq+0x0/0xd8) from [<
c042827c>] (init_IRQ+0x1c/0x24)
[<
c0428260>] (init_IRQ+0x0/0x24) from [<
c04256c8>] (start_kernel+0x1a4/0x300)
[<
c0425524>] (start_kernel+0x0/0x300) from [<
70008070>] (0x70008070)
---[ end trace
1b75b31a2719ed1d ]---
------------[ cut here ]------------
WARNING: at /home/rmk/git/linux-rmk/arch/arm/common/gic.c:762 gic_init_bases+0x170/0x2ec()
Modules linked in:
Backtrace:
[<
c00185d8>] (dump_backtrace+0x0/0x10c) from [<
c03294e8>] (dump_stack+0x18/0x1c) r6:
000002fa r5:
c042c670 r4:
00000000 r3:
c045f240
[<
c03294d0>] (dump_stack+0x0/0x1c) from [<
c00292c8>] (warn_slowpath_common+0x54/0x6c)
[<
c0029274>] (warn_slowpath_common+0x0/0x6c) from [<
c0029304>] (warn_slowpath_null+0x24/0x2c)
[<
c00292e0>] (warn_slowpath_null+0x0/0x2c) from [<
c042c670>] (gic_init_bases+0x170/0x2ec)
[<
c042c500>] (gic_init_bases+0x0/0x2ec) from [<
c042cdc8>] (gic_init_irq+0x8c/0xd8)
[<
c042cd3c>] (gic_init_irq+0x0/0xd8) from [<
c042827c>] (init_IRQ+0x1c/0x24)
[<
c0428260>] (init_IRQ+0x0/0x24) from [<
c04256c8>] (start_kernel+0x1a4/0x300)
[<
c0425524>] (start_kernel+0x0/0x300) from [<
70008070>] (0x70008070)
---[ end trace
1b75b31a2719ed1e ]---
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Wed, 30 Jan 2013 23:49:57 +0000 (23:49 +0000)]
ARM: GIC: fix GIC cpumask initialization
Punit Agrawal reports:
> I was trying to boot 3.8-rc5 on Realview EB 11MPCore using
> realview-smp_defconfig as a starting point but the kernel failed to
> progress past the log below (config attached).
>
> Pawel suggested I try reverting
384a290283f - "ARM: gic: use a private
> mapping for CPU target interfaces" that you've authored. With this
> commit reverted the kernel boots.
>
> I am not quite sure why the commit breaks 11MPCore but Pawel (cc'd)
> might be able to shed light on that.
Some early GIC implementations return zero for the first distributor
CPU routing register. This means we can't rely on that telling us
which CPU interface we're connected to. We know that these platforms
implement PPIs for IRQs 29-31 - but we shouldn't assume that these
will always be populated.
So, instead, scan for a non-zero CPU routing register in the first
32 IRQs and use that as our CPU mask.
Reported-by: Punit Agrawal <punit.agrawal@arm.com>
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Linus Torvalds [Fri, 8 Feb 2013 08:46:26 +0000 (19:46 +1100)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm regression fix from Dave Airlie:
"This one fixes a sleep while locked regression that was introduced
earlier in 3.8."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/ttm: fix fence locking in ttm_buffer_object_transfer, 2nd try
Lucas Stach [Thu, 7 Feb 2013 16:18:39 +0000 (16:18 +0000)]
net: usb: fix regression from FLAG_NOARP code
In commit
6509141f9c2ba74df6cc72ec35cd1865276ae3a4 ("usbnet: add new
flag FLAG_NOARP for usb net devices"), the newly added flag NOARP was
using an already defined value, which broke drivers using flag
MULTI_PACKET.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Thu, 7 Feb 2013 14:00:34 +0000 (14:00 +0000)]
l2tp: dont play with skb->truesize
Andrew Savchenko reported a DNS failure and we diagnosed that
some UDP sockets were unable to send more packets because their
sk_wmem_alloc was corrupted after a while (tx_queue column in
following trace)
$ cat /proc/net/udp
sl local_address rem_address st tx_queue rx_queue tr tm->when retrnsmt uid timeout inode ref pointer drops
...
459:
00000000:0270
00000000:0000 07
00000000:
00000000 00:
00000000 00000000 0 0 4507 2
ffff88003d612380 0
466:
00000000:0277
00000000:0000 07
00000000:
00000000 00:
00000000 00000000 0 0 4802 2
ffff88003d613180 0
470:
076A070A:007B
00000000:0000 07
FFFF4600:
00000000 00:
00000000 00000000 123 0 5552 2
ffff880039974380 0
470:
010213AC:007B
00000000:0000 07
00000000:
00000000 00:
00000000 00000000 0 0 4986 2
ffff88003dbd3180 0
470:
010013AC:007B
00000000:0000 07
00000000:
00000000 00:
00000000 00000000 0 0 4985 2
ffff88003dbd2e00 0
470:
00FCA8C0:007B
00000000:0000 07
FFFFFB00:
00000000 00:
00000000 00000000 0 0 4984 2
ffff88003dbd2a80 0
...
Playing with skb->truesize is tricky, especially when
skb is attached to a socket, as we can fool memory charging.
Just remove this code, its not worth trying to be ultra
precise in xmit path.
Reported-by: Andrew Savchenko <bircoph@gmail.com>
Tested-by: Andrew Savchenko <bircoph@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Thu, 7 Feb 2013 00:55:37 +0000 (00:55 +0000)]
net: sctp: sctp_auth_key_put: use kzfree instead of kfree
For sensitive data like keying material, it is common practice to zero
out keys before returning the memory back to the allocator. Thus, use
kzfree instead of kfree.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 8 Feb 2013 04:37:36 +0000 (23:37 -0500)]
Merge branch 'fixes' of git://git./linux/kernel/git/jesse/openvswitch into openvswitch
Jesse Gross says:
====================
One bug fix for net/3.8 for a long standing problem that was reported a few
times recently.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 8 Feb 2013 04:31:47 +0000 (23:31 -0500)]
Merge branch 'netback'
Ian Campbell says:
====================
The Xen netback implementation contains a couple of flaws which can
allow a guest to cause a DoS in the backend domain, potentially
affecting other domains in the system.
CVE-2013-0216 is a failure to sanity check the ring producer/consumer
pointers which can allow a guest to cause netback to loop for an
extended period preventing other work from occurring.
CVE-2013-0217 is a memory leak on an error path which is guest
triggerable.
The following series contains the fixes for these issues, as previously
included in Xen Security Advisory 39:
http://lists.xen.org/archives/html/xen-announce/2013-02/msg00001.html
Changes in v2:
- Typo and block comment format fixes
- Added stable Cc
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Ian Campbell [Wed, 6 Feb 2013 23:41:38 +0000 (23:41 +0000)]
netback: correct netbk_tx_err to handle wrap around.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Jan Beulich <JBeulich@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ian Campbell [Wed, 6 Feb 2013 23:41:37 +0000 (23:41 +0000)]
xen/netback: free already allocated memory on failure in xen_netbk_get_requests
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Matthew Daley [Wed, 6 Feb 2013 23:41:36 +0000 (23:41 +0000)]
xen/netback: don't leak pages on failure in xen_netbk_tx_check_gop.
Signed-off-by: Matthew Daley <mattjd@gmail.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Jan Beulich <JBeulich@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ian Campbell [Wed, 6 Feb 2013 23:41:35 +0000 (23:41 +0000)]
xen/netback: shutdown the ring if it contains garbage.
A buggy or malicious frontend should not be able to confuse netback.
If we spot anything which is not as it should be then shutdown the
device and don't try to continue with the ring in a potentially
hostile state. Well behaved and non-hostile frontends will not be
penalised.
As well as making the existing checks for such errors fatal also add a
new check that ensures that there isn't an insane number of requests
on the ring (i.e. more than would fit in the ring). If the ring
contains garbage then previously is was possible to loop over this
insane number, getting an error each time and therefore not generating
any more pending requests and therefore not exiting the loop in
xen_netbk_tx_build_gops for an externded period.
Also turn various netdev_dbg calls which no precipitate a fatal error
into netdev_err, they are rate limited because the device is shutdown
afterwards.
This fixes at least one known DoS/softlockup of the backend domain.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Jan Beulich <JBeulich@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Fri, 8 Feb 2013 01:22:30 +0000 (12:22 +1100)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/rusty/linux
Pull virtio fix from Rusty Russell:
"Obviously I forgot to push this before linux.conf.au..."
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
virtio_console: Don't access uninitialized data.
Linus Torvalds [Fri, 8 Feb 2013 01:15:14 +0000 (12:15 +1100)]
Merge tag 'rdma-for-linus' of git://git./linux/kernel/git/roland/infiniband
Pull IB regression fixes from Roland Dreier:
- Fix mlx4 VFs not working on old guests because of 64B CQE changes
- Fix ill-considered sparse fix for qib
- Fix IPoIB crash due to skb double destruct introduced in 3.8-rc1
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB/qib: Fix for broken sparse warning fix
mlx4_core: Fix advertisement of wrong PF context behaviour
IPoIB: Fix crash due to skb double destruct
Linus Torvalds [Fri, 8 Feb 2013 01:06:46 +0000 (12:06 +1100)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
"We've got corner cases for updating i_size that ceph was hitting,
error handling for quotas when we run out of space, a very subtle
snapshot deletion race, a crash while removing devices, and one
deadlock between subvolume creation and the sb_internal code (thanks
lockdep)."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: move d_instantiate outside the transaction during mksubvol
Btrfs: fix EDQUOT handling in btrfs_delalloc_reserve_metadata
Btrfs: fix possible stale data exposure
Btrfs: fix missing i_size update
Btrfs: fix race between snapshot deletion and getting inode
Btrfs: fix missing release of the space/qgroup reservation in start_transaction()
Btrfs: fix wrong sync_writers decrement in btrfs_file_aio_write()
Btrfs: do not merge logged extents if we've removed them from the tree
btrfs: don't try to notify udev about missing devices
Linus Torvalds [Fri, 8 Feb 2013 01:00:44 +0000 (12:00 +1100)]
Merge tag 'pinctrl-for-v3.8-late' of git://git./linux/kernel/git/linusw/linux-pinctrl
Pull late pinctrl fixes from Linus Walleij:
"Two patches appeared as of late, one was completely news to me, the
other one was rotated in -next for the next merge window but turned
out to be a showstopper.
- Exynos Kconfig fixup
- SIRF DT translation bug"
* tag 'pinctrl-for-v3.8-late' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: sirf: replace of_gpio_simple_xlate by sirf specific of_xlate
pinctrl: exynos: change PINCTRL_EXYNOS option
Linus Torvalds [Fri, 8 Feb 2013 00:55:27 +0000 (11:55 +1100)]
Merge tag 'stable/for-linus-3.8-rc6-tag' of git://git./linux/kernel/git/konrad/xen
Pull Xen fixes from Konrad Rzeszutek Wilk:
"This has two fixes. One is a security fix wherein we would spam the
kernel printk buffer if one of the guests was misbehaving. The other
is much tamer and it was us only checking for one type of error from
the IRQ subsystem (when allocating new IRQs) instead of for all of
them.
- Fix an IRQ allocation where we only check for a specific error (-1).
- CVE-2013-0231 / XSA-43. Make xen-pciback rate limit error messages
from xen_pcibk_enable_msi{,x}()"
* tag 'stable/for-linus-3.8-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen: fix error handling path if xen_allocate_irq_dynamic fails
xen-pciback: rate limit error messages from xen_pcibk_enable_msi{,x}()