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If the initial data element is 0, it will never be written, even
though the value from the previous method may be there.
Signed-off-by: Kelly Doran <kel.p.doran@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Pull ext4 bugfix from Ted Ts'o:
"Fix a regression introduced in v3.13-rc6"
* tag 'ext4_for_linus_stable' of http://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: fix bigalloc regression
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Pull networking fixes from David Miller:
"I'm hoping this is the very last batch of networking fixes for 3.13,
here goes nothing:
1) Fix crashes in VLAN's header_ops passthru.
2) Bridge multicast code needs to use BH spinlocks to prevent
deadlocks with timers. From Curt Brune.
3) ipv6 tunnels lack proper synchornization when updating percpu
statistics. From Li RongQing.
4) Fixes to bnx2x driver from Yaniv Rosner, Dmitry Kravkov and Michal
Kalderon.
5) Avoid undefined operator evaluation order in llc code, from Daniel
Borkmann.
6) Error paths in various GSO offload paths do not unwind properly,
in particular they must undo any modifications they have made to
the SKB. From Wei-Chun Chao.
7) Fix RX refill races during restore in virtio-net, from Jason Wang.
8) Fix SKB use after free in LLC code, from Daniel Borkmann.
9) Missing unlock and OOPS in netpoll code when VLAN tag handling
fails.
10) Fix vxlan device attachment wrt ipv6, from Fan Du.
11) Don't allow creating infiniband links to non-infiniband devices,
from Hangbin Liu.
12) Revert FEC phy reset active low change, it breaks things. From
Fabio Estevam.
13) Fix header pointer handling in 6lowpan header building code, from
Daniel Borkmann.
14) Fix RSS handling in be2net driver, from Vasundhara Volam.
15) Fix modem port indexing in HSO driver, from Dan Williams"
* http://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (38 commits)
bridge: use spin_lock_bh() in br_multicast_set_hash_max
ipv6: don't install anycast address for /128 addresses on routers
hso: fix handling of modem port SERIAL_STATE notifications
isdn: Drop big endian cpp checks from telespci and hfc_pci drivers
be2net: fix max_evt_qs calculation for BE3 in SR-IOV config
be2net: increase the timeout value for loopback-test FW cmd
be2net: disable RSS when number of RXQs is reduced to 1 via set-channels
xen-netback: Include header for vmalloc
net: 6lowpan: fix lowpan_header_create non-compression memcpy call
fec: Revert "fec: Do not assume that PHY reset is active low"
bnx2x: fix VLAN configuration for VFs.
bnx2x: fix AFEX memory overflow
bnx2x: Clean before update RSS arrives
bnx2x: Correct number of MSI-X vectors for VFs
bnx2x: limit number of interrupt vectors for 57711
qlcnic: Fix bug in Tx completion path
infiniband: make sure the src net is infiniband when create new link
{vxlan, inet6} Mark vxlan_dev flags with VXLAN_F_IPV6 properly
cxgb4: allow large buffer size to have page size
netpoll: Fix missing TXQ unlock and and OOPS.
...
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* acpi-battery:
ACPI / Battery: Add a _BIX quirk for NEC LZ750/LS
* pm-cpufreq:
intel_pstate: Add X86_FEATURE_APERFMPERF to cpu match parameters.
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br_multicast_set_hash_max() is called from process context in
net/bridge/br_sysfs_br.c by the sysfs store_hash_max() function.
br_multicast_set_hash_max() calls spin_lock(&br->multicast_lock),
which can deadlock the CPU if a softirq that also tries to take the
same lock interrupts br_multicast_set_hash_max() while the lock is
held . This can happen quite easily when any of the bridge multicast
timers expire, which try to take the same lock.
The fix here is to use spin_lock_bh(), preventing other softirqs from
executing on this CPU.
Steps to reproduce:
1. Create a bridge with several interfaces (I used 4).
2. Set the "multicast query interval" to a low number, like 2.
3. Enable the bridge as a multicast querier.
4. Repeatedly set the bridge hash_max parameter via sysfs.
# brctl addbr br0
# brctl addif br0 eth1 eth2 eth3 eth4
# brctl setmcqi br0 2
# brctl setmcquerier br0 1
# while true ; do echo 4096 > /sys/class/net/br0/bridge/hash_max; done
Signed-off-by: Curt Brune <curt@cumulusnetworks.com>
Signed-off-by: Scott Feldman <sfeldma@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It does not make sense to create an anycast address for an /128-prefix.
Suppress it.
As 32019e651c6fce ("ipv6: Do not leave router anycast address for /127
prefixes.") shows we also may not leave them, because we could accidentally
remove an anycast address the user has allocated or got added via another
prefix.
Cc: François-Xavier Le Bail <fx.lebail@yahoo.com>
Cc: Thomas Haller <thaller@redhat.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The existing serial state notification handling expected older Option
devices, having a hardcoded assumption that the Modem port was always
USB interface #2. That isn't true for devices from the past few years.
hso_serial_state_notification is a local cache of a USB Communications
Interface Class SERIAL_STATE notification from the device, and the
USB CDC specification (section 6.3, table 67 "Class-Specific Notifications")
defines wIndex as the USB interface the event applies to. For hso
devices this will always be the Modem port, as the Modem port is the
only port which is set up to receive them by the driver.
So instead of always expecting USB interface #2, instead validate the
notification with the actual USB interface number of the Modem port.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Tested-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The AML method _BIX of NEC LZ750/LS returns a broken package which
skips the first member "Revision" (ACPI 5.0, Table 10-234).
Add a quirk for this machine to skip member "Revision" during parsing
the package returned by _BIX.
Reference: https://bugzilla.kernel.org/show_bug.cgi?id=67351
Reported-and-tested-by: Francisco Castro <fcr@adinet.com.uy>
Cc: 3.8+ <stable@vger.kernel.org> " 3.8+
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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KVM environments do not support APERF/MPERF MSRs. intel_pstate cannot
operate without these registers.
The previous validity checks in intel_pstate_msrs_not_valid() are
insufficent in nested KVMs.
References: https://bugzilla.redhat.com/show_bug.cgi?id=1046317
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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With arm:allmodconfig, building the Teles PCI driver fails with
telespci.c:294:2: error: #error "not running on big endian machines now"
Similar, building the driver for HFC PCI-Bus cards fails with
hfc_pci.c:1647:2: error: #error "not running on big endian machines now"
Remove the big endian cpp check from both drivers to fix the build errors.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit f5a44db5d2 introduced a regression on filesystems created with
the bigalloc feature (cluster size > blocksize). It causes xfstests
generic/006 and /013 to fail with an unexpected JBD2 failure and
transaction abort that leaves the test file system in a read only state.
Other xfstests run on bigalloc file systems are likely to fail as well.
The cause is the accidental use of a cluster mask where a cluster
offset was needed in ext4_ext_map_blocks().
Signed-off-by: Eric Whitney <enwlinux@gmail.com>
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Sathya Perla says:
====================
be2net: patch set
Pls apply the following bug fixes to the 'net' tree. Thanks.
Suresh Reddy (2):
be2net: increase the timeout value for loopback-test FW cmd
be2net: fix max_evt_qs calculation for BE3 in SR-IOV config
Vasundhara Volam (1):
be2net: disable RSS when number of RXQs is reduced to 1 via
set-channels
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The driver wrongly assumes 16 EQs/vectors are available for each BE3 PF.
When SR-IOV is enabled, a BE3 PF can support only a max of 8 EQs.
Signed-off-by: Suresh Reddy <suresh.reddy@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The loopback test FW cmd may need upto 15 seconds to complete on
certain PHYs. This patch also fixes the name of the completion variable
used to synchronize FW cmd completions as it not used by the flashing
cmd alone anymore.
Signed-off-by: Suresh Reddy <suresh.reddy@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When *only* the default RXQ is used, the RSS policy must be disabled so
that all IP and no-IP traffic is placed into the default RXQ. If not,
IP traffic is dropped.
Also, issue the RSS_CONFIG cmd only if FW advertises RSS capability for
the interface.
Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Avoid potentially spamming the kernel log with WARN splash messages
when catching wrong usage of seqadj, by simply using WARN_ONCE.
This is a followup to commit db12cf274353 (netfilter: WARN about
wrong usage of sequence number adjustments)
Suggested-by: Flavio Leitner <fbl@redhat.com>
Suggested-by: Daniel Borkmann <dborkman@redhat.com>
Suggested-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Commit 5901b6be885e attempted to introduce IPv6 support into
IRC NAT helper. By doing so, the following code seemed to be removed
by accident:
ip = ntohl(exp->master->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u3.ip);
sprintf(buffer, "%u %u", ip, port);
pr_debug("nf_nat_irc: inserting '%s' == %pI4, port %u\n", buffer, &ip, port);
This leads to the fact that buffer[] was left uninitialized and
contained some stack value. When we call nf_nat_mangle_tcp_packet(),
we call strlen(buffer) on excatly this uninitialized buffer. If we
are unlucky and the skb has enough tailroom, we overwrite resp. leak
contents with values that sit on our stack into the packet and send
that out to the receiver.
Since the rather informal DCC spec [1] does not seem to specify
IPv6 support right now, we log such occurences so that admins can
act accordingly, and drop the packet. I've looked into XChat source,
and IPv6 is not supported there: addresses are in u32 and print
via %u format string.
Therefore, restore old behaviour as in IPv4, use snprintf(). The
IRC helper does not support IPv6 by now. By this, we can safely use
strlen(buffer) in nf_nat_mangle_tcp_packet() and prevent a buffer
overflow. Also simplify some code as we now have ct variable anyway.
[1] http://www.irchelp.org/irchelp/rfc/ctcpspec.html
Fixes: 5901b6be885e ("netfilter: nf_nat: support IPv6 in IRC NAT helper")
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Harald Welte <laforge@gnumonks.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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My Acer 8510TZ stops displaying anything when X starts with Linus' current
tree. I bisected it down to commit ee1452d74584.
This patch reverts commit ee1452d74584.
After the revert, everything works as before.
Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Reported-by: Dylan Borg <borgdylan@hotmail.com> (for a Acer Extensa 5635Z)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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gem_gtt_cpu_tlb seems to indicate that it is needed.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=72869
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Samsung Clock fixes for 3.13-rc7
* Several patches fixing up incorrectly defined register addresses and
bitfield offsets that could lead to undefined operation when accessing
respective registers or bitfields.
1) clk: exynos5250: fix sysmmu_mfc{l,r} gate clocks
2a) clk: samsung: exynos5250: Fix ACP gate register offset
2b) clk: samsung: exynos5250: Add MDMA0 clocks
2c) ARM: dts: exynos5250: Fix MDMA0 clock number
3) clk: samsung: exynos4: Correct SRC_MFC register
All three issues have been present since Exynos5250 and Exynos4 clock
drivers were added by commits 6e3ad26816b72 ("clk: exynos5250:
register clocks using common clock framework") and e062b571777f5
("clk: exynos4: register clocks using common clock framework")
respectively.
* Patch to fix automatic disabling of Exynos5250 sysreg clock that could
cause undefined operation of several peripherals, such as USB, I2C,
MIPI or display block.
4) clk: samsung: exynos5250: Add CLK_IGNORE_UNUSED flag for the sysreg
clock
Present since Exynos5250 clock drivers was added by commits
6e3ad26816b72 ("clk: exynos5250: register clocks using common clock
framework").
* Patch fixing compilation warning in clk-exynos-audss driver when
CONFIG_PM_SLEEP is disabled.
5) clk: exynos: File scope reg_save array should depend on PM_SLEEP
Present since the driver was added by commit 1241ef94ccc3 ("clk:
samsung: register audio subsystem clocks using common clock
framework").
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Commit ac3d5ac27735 ("xen-netback: fix guest-receive-side array sizes")
added calls to vmalloc and vfree in the interface.c file without including
<linux/vmalloc.h>. This causes build failures if the
-Werror=implicit-function-declaration flag is passed.
Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In function lowpan_header_create(), we invoke the following code
construct:
struct ipv6hdr *hdr;
...
hdr = ipv6_hdr(skb);
...
if (...)
memcpy(hc06_ptr + 1, &hdr->flow_lbl[1], 2);
else
memcpy(hc06_ptr, &hdr, 4);
Where the else path of the condition, that is, non-compression
path, calls memcpy() with a pointer to struct ipv6hdr *hdr as
source, thus two levels of indirection. This cannot be correct,
and likely only one level of pointer was intended as source
buffer for memcpy() here.
Fixes: 44331fe2aa0d ("IEEE802.15.4: 6LoWPAN basic support")
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: Werner Almesberger <werner@almesberger.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In order to keep DT compatibility we need to revert this, otherwise the original
dts files will no longer work with this driver change.
This reverts commit 7a399e3a2e05bc580a78ea72371b3896827f72e1.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Yuval Mintz says:
====================
bnx2x: Bug fixes patch series
Most of what this parch series contains is SR-IOV related bug fixes.
Additionally, it contains some small fixes for legacy devices/modes.
Please consider applying these patches to `net'.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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If the hypervisor configures a vlan for the VF via the PF, the expected
result is that only packets tagged by said vlan will be received by the VF
(and that vlan will be silently removed).
Due to an incorrect manipulation of vlan filters in the driver, the
VF can receive untagged traffic even if the hypervisor configured
some vlan for it.
This patch corrects the behaviour.
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There are 2 different (related) flows in the slowpath configuration
that utilize the same pointer and cast it to different structs;
This is obviously incorrect as the intended allocated memory is that
of the smaller struct, possibly causing the flow utilizing the larger
struct to corrupt other slowpath configuration.
Since both flows are exclusive, set the allocated memory to be a union
of both structs.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When a PF receives a VF message indicating a change in RSS properties
it should clean the flags' bit-fields; Otherwise, it's possible that
some random values will be considered as flags by the lower layers configuring
the RSS in FW.
Signed-off-by: Michal Kalderon <michals@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Number of VFs in PCIe configuration space is zero-based. Driver incorrectly
sets the number of VFs to be larger by one than what actually is feasible by
HW, which might cause later VFs to fail to allocate their MSI-X interrupts.
Signed-off-by: Michal Kalderon <michals@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Original straightforward division may lead to zeroing number of SB and
null-pointer dereference when device is short of MSIX vectors or lacks
MSIX capabilities.
Reported-by: Vladislav Zolotarov <vladz@cloudius-systems.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull ARM fixes from Russell King:
"Another set of small fixes for ARM, covering various areas.
Laura fixed a long standing issue with virt_addr_valid() failing to
handle holes in memory. Steve found a problem with dcache flushing
for compound pages. I fixed another bug in footbridge stuff causing
time to tick slowly, and also a problem with the AES code which can
cause linker errors.
A patch from Rob which fixes Xen problems induced by a lack of
consistency in our naming of ioremap_cache() - which thankfully has
very few users"
* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
ARM: 7933/1: rename ioremap_cached to ioremap_cache
ARM: fix "bad mode in ... handler" message for undefined instructions
CRYPTO: Fix more AES build errors
ARM: 7931/1: Correct virt_addr_valid
ARM: 7923/1: mm: fix dcache flush logic for compound high pages
ARM: fix footbridge clockevent device
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* acpi-ac:
ACPI / AC: change notification handler type to ACPI_ALL_NOTIFY
* acpi-tpm:
ACPI / TPM: fix memory leak when walking ACPI namespace
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In function ppi_callback(), memory allocated by acpi_get_name() will get
leaked when current device isn't the desired TPM device, so fix the
memory leak.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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With kernel 3.13rc5 there are no AC adapter notifications on my laptop.
Commit cc8ef5270734 "ACPI / AC: convert ACPI ac driver to platform bus"
changed the driver to listen to device notifications only. However, AML
code on my laptop notifies the driver with zero event.
This patch changes the driver to listen to all events again.
Fixes: cc8ef5270734 (ACPI / AC: convert ACPI ac driver to platform bus)
References: https://bugzilla.kernel.org/show_bug.cgi?id=67821
Signed-off-by: Alexander Mezin <mezin.alexander@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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ioremap_cache is more aligned with other architectures.
There are only 2 users of this in the kernel: pxa2xx-flash and Xen.
This fixes Xen build failures on arm64:
drivers/tty/hvc/hvc_xen.c:233:2: error: implicit declaration of function 'ioremap_cached' [-Werror=implicit-function-declaration]
drivers/xen/grant-table.c:1174:3: error: implicit declaration of function 'ioremap_cached' [-Werror=implicit-function-declaration]
drivers/xen/xenbus/xenbus_probe.c:778:4: error: implicit declaration of function 'ioremap_cached' [-Werror=implicit-function-declaration]
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The array was missing the final entry for the undefined instruction
exception handler; this commit adds it.
Cc: <stable@vger.kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Building a multi-arch kernel results in:
arch/arm/crypto/built-in.o: In function `aesbs_xts_decrypt':
sha1_glue.c:(.text+0x15c8): undefined reference to `bsaes_xts_decrypt'
arch/arm/crypto/built-in.o: In function `aesbs_xts_encrypt':
sha1_glue.c:(.text+0x1664): undefined reference to `bsaes_xts_encrypt'
arch/arm/crypto/built-in.o: In function `aesbs_ctr_encrypt':
sha1_glue.c:(.text+0x184c): undefined reference to `bsaes_ctr32_encrypt_blocks'
arch/arm/crypto/built-in.o: In function `aesbs_cbc_decrypt':
sha1_glue.c:(.text+0x19b4): undefined reference to `bsaes_cbc_encrypt'
This code is already runtime-conditional on NEON being supported, so
there's no point compiling it out depending on the minimum build
architecture.
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Pull sparc bugfixes from David Miller:
1) Missing include can lead to build failure, from Kirill Tkhai.
2) Use dev_is_pci() where applicable, from Yijing Wang.
3) Enable irqs after we enable preemption in cpu startup path, from
Kirill Tkhai.
4) Revert a __copy_{to,from}_user_inatomic change that broke
iov_iter_copy_from_user_atomic() and thus several tests in xfstests
and LTP. From Dave Kleikamp.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
Revert "sparc64: Fix __copy_{to,from}_user_inatomic defines."
sparc64: smp_callin: Enable irqs after preemption is disabled
sparc/PCI: Use dev_is_pci() to identify PCI devices
sparc64: Fix build regression
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This reverts commit 145e1c0023585e0e8f6df22316308ec61c5066b2.
This commit broke the behavior of __copy_from_user_inatomic when
it is only partially successful. Instead of returning the number
of bytes not copied, it now returns 1. This translates to the
wrong value being returned by iov_iter_copy_from_user_atomic.
xfstests generic/246 and LTP writev01 both fail on btrfs and nfs
because of this.
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: sparclinux@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
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Most of other architectures have below suggested order.
So lets do the same to fit generic idle loop scheme better.
Signed-off-by: Kirill Tkhai <tkhai@yandex.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use dev_is_pci() instead of checking bus type directly.
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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With commit e29a9e2ae165620d, we set the active_target pointer from
nfc_dep_link_is_up() in order to support the case where the target
detection and the DEP link setting are done atomically by the driver.
That can only happen in initiator mode, so we need to check for that
otherwise we fail to bring a p2p link in target mode.
Signed-off-by: Arron Wang <arron.wang@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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o Driver is using common tx_clean_lock for all Tx queues. This patch
adds per queue tx_clean_lock.
o Driver is not updating sw_consumer while processing Tx completion
when interface is going down. Fixed in this patch.
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When we create a new infiniband link with uninfiniband device, e.g. `ip link
add link em1 type ipoib pkey 0x8001`. We will get a NULL pointer dereference
cause other dev like Ethernet don't have struct ib_device.
The code path is:
rtnl_newlink
|-- ipoib_new_child_link
|-- __ipoib_vlan_add
|-- ipoib_set_dev_features
|-- ib_query_device
Fix this bug by make sure the src net is infiniband when create new link.
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Even if user doesn't supply the physical netdev to attach vxlan dev
to, and at the same time user want to vxlan sit top of IPv6, mark
vxlan_dev flags with VXLAN_F_IPV6 to create IPv6 based socket.
Otherwise kernel crashes safely every time spitting below messages,
Steps to reproduce:
ip link add vxlan0 type vxlan id 42 group ff0e::110
ip link set vxlan0 up
[ 62.656266] BUG: unable to handle kernel NULL pointer dereference[ 62.656320] ip (3008) used greatest stack depth: 3912 bytes left
at 0000000000000046
[ 62.656423] IP: [<ffffffff816d822d>] ip6_route_output+0xbd/0xe0
[ 62.656525] PGD 2c966067 PUD 2c9a2067 PMD 0
[ 62.656674] Oops: 0000 [#1] SMP
[ 62.656781] Modules linked in: vxlan netconsole deflate zlib_deflate af_key
[ 62.657083] CPU: 1 PID: 2128 Comm: whoopsie Not tainted 3.12.0+ #182
[ 62.657083] Hardware name: innotek GmbH VirtualBox, BIOS VirtualBox 12/01/2006
[ 62.657083] task: ffff88002e2335d0 ti: ffff88002c94c000 task.ti: ffff88002c94c000
[ 62.657083] RIP: 0010:[<ffffffff816d822d>] [<ffffffff816d822d>] ip6_route_output+0xbd/0xe0
[ 62.657083] RSP: 0000:ffff88002fd038f8 EFLAGS: 00210296
[ 62.657083] RAX: 0000000000000000 RBX: ffff88002fd039e0 RCX: 0000000000000000
[ 62.657083] RDX: ffff88002fd0eb68 RSI: ffff88002fd0d278 RDI: ffff88002fd0d278
[ 62.657083] RBP: ffff88002fd03918 R08: 0000000002000000 R09: 0000000000000000
[ 62.657083] R10: 00000000000001ff R11: 0000000000000000 R12: 0000000000000001
[ 62.657083] R13: ffff88002d96b480 R14: ffffffff81c8e2c0 R15: 0000000000000001
[ 62.657083] FS: 0000000000000000(0000) GS:ffff88002fd00000(0063) knlGS:00000000f693b740
[ 62.657083] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
[ 62.657083] CR2: 0000000000000046 CR3: 000000002c9d2000 CR4: 00000000000006e0
[ 62.657083] Stack:
[ 62.657083] ffff88002fd03a40 ffffffff81c8e2c0 ffff88002fd039e0 ffff88002d96b480
[ 62.657083] ffff88002fd03958 ffffffff816cac8b ffff880019277cc0 ffff8800192b5d00
[ 62.657083] ffff88002d5bc000 ffff880019277cc0 0000000000001821 0000000000000001
[ 62.657083] Call Trace:
[ 62.657083] <IRQ>
[ 62.657083] [<ffffffff816cac8b>] ip6_dst_lookup_tail+0xdb/0xf0
[ 62.657083] [<ffffffff816caea0>] ip6_dst_lookup+0x10/0x20
[ 62.657083] [<ffffffffa0020c13>] vxlan_xmit_one+0x193/0x9c0 [vxlan]
[ 62.657083] [<ffffffff8137b3b7>] ? account+0xc7/0x1f0
[ 62.657083] [<ffffffffa0021513>] vxlan_xmit+0xd3/0x400 [vxlan]
[ 62.657083] [<ffffffff8161390d>] dev_hard_start_xmit+0x49d/0x5e0
[ 62.657083] [<ffffffff81613d29>] dev_queue_xmit+0x2d9/0x480
[ 62.657083] [<ffffffff817cb854>] ? _raw_write_unlock_bh+0x14/0x20
[ 62.657083] [<ffffffff81630565>] ? eth_header+0x35/0xe0
[ 62.657083] [<ffffffff8161bc5e>] neigh_resolve_output+0x11e/0x1e0
[ 62.657083] [<ffffffff816ce0e0>] ? ip6_fragment+0xad0/0xad0
[ 62.657083] [<ffffffff816cb465>] ip6_finish_output2+0x2f5/0x470
[ 62.657083] [<ffffffff816ce166>] ip6_finish_output+0x86/0xc0
[ 62.657083] [<ffffffff816ce218>] ip6_output+0x78/0xb0
[ 62.657083] [<ffffffff816eadd6>] mld_sendpack+0x256/0x2a0
[ 62.657083] [<ffffffff816ebd8c>] mld_ifc_timer_expire+0x17c/0x290
[ 62.657083] [<ffffffff816ebc10>] ? igmp6_timer_handler+0x80/0x80
[ 62.657083] [<ffffffff816ebc10>] ? igmp6_timer_handler+0x80/0x80
[ 62.657083] [<ffffffff81051065>] call_timer_fn+0x45/0x150
[ 62.657083] [<ffffffff816ebc10>] ? igmp6_timer_handler+0x80/0x80
[ 62.657083] [<ffffffff81052353>] run_timer_softirq+0x1f3/0x2a0
[ 62.657083] [<ffffffff8102dfd8>] ? lapic_next_event+0x18/0x20
[ 62.657083] [<ffffffff8109e36f>] ? clockevents_program_event+0x6f/0x110
[ 62.657083] [<ffffffff8104a2f6>] __do_softirq+0xd6/0x2b0
[ 62.657083] [<ffffffff8104a75e>] irq_exit+0x7e/0xa0
[ 62.657083] [<ffffffff8102ea15>] smp_apic_timer_interrupt+0x45/0x60
[ 62.657083] [<ffffffff817d3eca>] apic_timer_interrupt+0x6a/0x70
[ 62.657083] <EOI>
[ 62.657083] [<ffffffff817d4a35>] ? sysenter_dispatch+0x7/0x1a
[ 62.657083] Code: 4d 8b 85 a8 02 00 00 4c 89 e9 ba 03 04 00 00 48 c7 c6 c0 be 8d 81 48 c7 c7 48 35 a3 81 31 c0 e8 db 68 0e 00 49 8b 85 a8 02 00 00 <0f> b6 40 46 c0 e8 05 0f b6 c0 c1 e0 03 41 09 c4 e9 77 ff ff ff
[ 62.657083] RIP [<ffffffff816d822d>] ip6_route_output+0xbd/0xe0
[ 62.657083] RSP <ffff88002fd038f8>
[ 62.657083] CR2: 0000000000000046
[ 62.657083] ---[ end trace ba8a9583d7cd1934 ]---
[ 62.657083] Kernel panic - not syncing: Fatal exception in interrupt
Signed-off-by: Fan Du <fan.du@windriver.com>
Reported-by: Ryan Whelan <rcwhelan@gmail.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Since commit 52367a763d8046190754ab43743e42638564a2d1
("cxgb4/cxgb4vf: Code cleanup to enable T4 Configuration File support"),
we have failures like this during cxgb4 probe:
cxgb4 0000:01:00.4: bad SGE FL page buffer sizes [65536, 65536]
cxgb4: probe of 0000:01:00.4 failed with error -22
This happens whenever software parameters are used, without a
configuration file. That happens when the hardware was already
initialized (after kexec, or after csiostor is loaded).
It happens that these values are acceptable, rendering fl_pg_order equal
to 0, which is the case of a hard init when the page size is equal or
larger than 65536.
Accepting fl_large_pg equal to fl_small_pg solves the issue, and
shouldn't cause any trouble besides a possible performance reduction
when smaller pages are used. And that can be fixed by a configuration
file.
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull battery fixes from Anton Vorontsov:
"Two fixes:
- fix build error caused by max17042_battery conversion to the regmap
API.
- fix kernel oops when booting with wakeup_source_activate enabled"
* tag 'for-v3.13-fixes' of git://git.infradead.org/battery-2.6:
max17042_battery: Fix build errors caused by missing REGMAP_I2C config
power_supply: Fix Oops from NULL pointer dereference from wakeup_source_activate
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Kelly Doran
Ben Skeggs
Linus Torvalds
Rafael J. Wysocki
Curt Brune
Hannes Frederic Sowa
Dan Williams
Lan Tianyu
Dirk Brandewie
Guenter Roeck
John W. Linville
Eric Whitney
David S. Miller
Suresh Reddy
Vasundhara Volam
Jesper Dangaard Brouer
Daniel Borkmann
Alexander van Heukelum
Ben Widawsky
Mike Turquette
Josh Boyer
Fabio Estevam
Yuval Mintz
Michal Kalderon
Dmitry Kravkov
Jiang Liu
Alexander Mezin
Rob Herring
Russell King
Dave Kleikamp
Kirill Tkhai
Yijing Wang
Arron Wang
Shahed Shaikh
Hangbin Liu
fan.du
Thadeu Lima de Souza Cascardo