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Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains two bugfixes for your net tree, they are:
1) Validate netlink group from nfnetlink to avoid an out of bound array
access. This should only happen with superuser priviledges though.
Discovered by Andrey Ryabinin using trinity.
2) Don't push ethernet header before calling the netfilter output hook
for multicast traffic, this breaks ebtables since it expects to see
skb->data pointing to the network header, patch from Linus Luessing.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
John W. Linville says:
====================
pull request: wireless 2014-11-20
Please full this little batch of fixes intended for the 3.18 stream!
For the mac80211 patch, Johannes says:
"Here's another last minute fix, for minstrel HT crashing
depending on the value of some uninitialised stack."
On top of that...
Ben Greear fixes an ath9k regression in which a BSSID mask is
miscalculated.
Dmitry Torokhov corrects an error handling routing in brcmfmac which
was checking an unsigned variable for a negative value.
Johannes Berg avoids a build problem in brcmfmac for arches where
linux/unaligned/access_ok.h and asm/unaligned.h conflict.
Mathy Vanhoef addresses another brcmfmac issue so as to eliminate a
use-after-free of the URB transfer buffer if a timeout occurs.
Please let me know if there are problems!
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Peer priority groups were being reversed, but this was missed in the previous
fix sent out for this issue.
v2 : Previous patch was doing extra unnecessary work, result is the same.
Please ignore previous patch
Fixes : ee7bc3cdc270 ('cxgb4 : dcb open-lldp interop fixes')
Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This fixes an old regression introduced by commit
b0d0d915 (ipx: remove the BKL).
When a recvmsg syscall blocks waiting for new data, no data can be sent on the
same socket with sendmsg because ipx_recvmsg() sleeps with the socket locked.
This breaks mars-nwe (NetWare emulator):
- the ncpserv process reads the request using recvmsg
- ncpserv forks and spawns nwconn
- ncpserv calls a (blocking) recvmsg and waits for new requests
- nwconn deadlocks in sendmsg on the same socket
Commit b0d0d915 has simply replaced BKL locking with
lock_sock/release_sock. Unlike now, BKL got unlocked while
sleeping, so a blocking recvmsg did not block a concurrent
sendmsg.
Only keep the socket locked while actually working with the socket data and
release it prior to calling skb_recv_datagram().
Signed-off-by: Jiri Bohac <jbohac@suse.cz>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
When userspace doesn't provide a mask, OVS datapath generates a fully
unwildcarded mask for the flow by copying the flow and setting all bits
in all fields. For IPv6 label, this creates a mask that matches on the
upper 12 bits, causing the following error:
openvswitch: netlink: Invalid IPv6 flow label value (value=ffffffff, max=fffff)
This patch ignores the label validation check for masks, avoiding this
error.
Signed-off-by: Joe Stringer <joestringer@nicira.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
pptp_getname() only partially initializes the stack variable sa,
particularly only fills the pptp part of the sa_addr union. The code
thereby discloses 16 bytes of kernel stack memory via getsockname().
Fix this by memset(0)'ing the union before.
Cc: Dmitry Kozlov <xeb@mail.ru>
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
fix one regression and one endian issue.
* 'drm-fixes-3.18' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: fix endian swapping in vbios fetch for tdp table
drm/radeon: disable native backlight control on pre-r6xx asics (v2)
Since we want the SW INT to go off as soon as possible, write the
extra bits that will turn off the ITR wait for the interrupt.
Change-ID: I6d5382ba60840fa32abb7dea17c839eb4b5f68f7
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Since the if part of this statement contains a break, there's no reason
for the else. Clean up the code and make it more obvious that the delay
happens each time through the loop.
Change-ID: I9292eaf7dd687688bdc401b8bd8d1d14f6944460
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Most of the null-checking in this driver is of the style if (!foo),
except these few. Make these checks consistent with the rest of the
code.
Change-ID: I991924f34072fa607a1b626a8b3f1fa5195d43e9
Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch is the result of running checkpatch on the i40evf driver with
the --strict option. The vast majority of changes are adding/removing
blank lines, aligning function parameters, and correcting over-long
lines.
The only possible functional change is changing the flags member of the
adapter structure to be non-volatile. However, according to the kernel
documentation, this is not necessary and the volatile should be removed.
Change-ID: Ie8c6414800924f529bef831e8845292b970fe2ed
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
No code changes. Update comments to match actual function declarations.
Change-ID: Ib830d2f154ee917a104955c0914267fc98f3d2c8
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Overloading the msg_size field in the arq_event_info struct is just a
bad idea. It leads to repeated bugs when the structure is used in a
loop, since the input value (buffer size) is overwritten by the output
value (actual message length).
Fix this by splitting the field into two and renaming to indicate the
actual function of each field.
Since the arq_event struct has now changed, we need to change the drivers
to support this. Note that we no longer need to initialize the buffer size
each time we go through a loop as this value is no longer destroyed by
arq processing.
In the process, we also fix a bug in i40evf_verify_api_ver where the
buffer size was not correctly reinitialized each time through the loop.
Change-ID: Ic7f9633cdd6f871f93e698dfb095e29c696f5581
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Ashish Shah <ashish.n.shah@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds ixgbevf_netpoll() a callback for .ndo_poll_controller to
allow for the VF interface to be used with netconsole.
CC: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
total_rx_packets is the number of packets we had cleaned, and budget is
the total number of packets that we could clean per poll. Instead of
altering both of these values we can save ourselves one write to memory by
just comparing total_rx_packets to the budget and as long as we are less
than budget we continue cleaning.
Also change the do{}while logic to while{} in order to avoid processing
packets when budget is 0.
CC: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch changes the basic receive path for ixgbevf so that instead of
receiving the data into an skb it is received into a double buffered page.
The main change is that the receives will be done in pages only and then
pull the header out of the page and copy it into the sk_buff data.
This has the advantages of reduced cache misses and improved performance on
IOMMU enabled systems.
v2:
- added pfmemalloc check to a new function for reusable page
- moved atomic_inc outside of #if/else in ixgbevf_add_rx_frag()
- reverted the removal of the api check in ixgbevf_change_mtu()
CC: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Since the next_to_clean value is only accessed by the Rx interrupt handler
we can save on stack space by just storing our updated values back in
next_to_clean instead of using the stack variable i. This should help to
reduce stack space and we can further collapse the size of the function.
Also removed non_eop_descs counter as it was never shown in the stats.
CC: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This change allows us to go from a loop based on the descriptor to one
primarily based on the budget. The advantage to this is that we can avoid
carrying too many values from one iteration to the next.
CC: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This change is meant to help cleanup the usage of temporary variables
within the Rx hot-path by removing unnecessary variables and reducing
the scope of variables that do not need to exist outside the main loop.
CC: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch cleans up ixgbevf_clean_rx_irq() by merging several similar
operations into a new function - ixgbevf_process_skb_fields().
CC: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Instead of keeping a local copy of the status bits from the descriptor
we can just read them directly - this is accomplished with the addition
of ixgbevf_test_staterr().
In addition instead of doing a byteswap on the status bits value, we
can byteswap the constant values we are testing since that can be done
at compile time which should help to improve performance on big-endian
systems.
CC: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Instead of clearing the status bits in the cleanup it makes more sense to
just clear the status bits on allocation. This way we can leave the Rx
descriptor rings as a read only memory block until we actually have buffers
to give back to the hardware.
CC: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Existing code updates cupfreq policy only while executing
cpufreq_apply_cooling() function (i.e. when notify_device != NOTIFY_INVALID).
It doesn't apply constraints when cpufreq policy update happens from any other
place but it should update the cpufreq policy with thermal constraints every
time when there is a cpufreq policy update, to keep state of
cpufreq_cooling_device and max_feq of cpufreq policy in sync. For instance
while resuming cpufreq updates cpufreq_policy and it restores default
policy->usr_policy values irrespective of cooling device's cpufreq_state since
notification gets missed because (notify_device == NOTIFY_INVALID).
Another problem, is that userspace is able to change max_freq irrespective of
cooling device's state, as notification gets missed.
This patch modifies code to maintain a global cpufreq_dev_list and applies
constraints of all matching cooling devices for policy's cpu when there is any
policy update(ends up applying the lowest max_freq among the matching cpu
cooling devices).
This patch also removes redundant check (max_freq > policy->user_policy.max),
as cpufreq framework takes care of user_policy constraints already where ever
required, otherwise its causing an issue while increasing max_freq in normal
scenerio as it restores max_freq with policy->user_policy.max which is old
(smaller) value.
Signed-off-by: Yadwinder Singh Brar <yadi.brar@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
TIF_NOHZ is 19 (i.e. _TIF_SYSCALL_TRACE | _TIF_NOTIFY_RESUME |
_TIF_SINGLESTEP), not (1<<19).
This code is involved in Dave's trinity lockup, but I don't see why
it would cause any of the problems he's seeing, except inadvertently
by causing a different path through entry_64.S's syscall handling.
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Dave Jones <davej@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/a6cd3b60a3f53afb6e1c8081b0ec30ff19003dd7.1416434075.git.luto@amacapital.net
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Adds new VID/PID for the Marvell 88W8766. The kernel currently only supports
the device as PCI, but it is also available using USB. An example of a device
delivered with the 88W8766 as USB is the Globalscale Mirabox.
TX buffer size is set to driver default (2K), as we do not know the firmware
requirement.
Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The functions brcmu_pkt_buf_free_skb() and release_firmware() test whether
their argument is NULL and then return immediately. Thus the test around
the call is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
another relatively large set of changes:
* TDLS off-channel support set from Arik/Liad, with some support
patches I did
* custom regulatory fixes from Arik
* minstrel VHT fix (and a small optimisation) from Felix
* add back radiotap vendor namespace support (myself)
* random MAC address scanning for cfg80211/mac80211/hwsim (myself)
* CSA improvements (Luca)
* WoWLAN Net Detect (wake on network found) support (Luca)
* and lots of other smaller changes from many people
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Merge tag 'mac80211-next-for-john-2014-11-20' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Johannes Berg <johannes@sipsolutions.net> says:
"It has been a while since my last pull request, so we accumulated
another relatively large set of changes:
* TDLS off-channel support set from Arik/Liad, with some support
patches I did
* custom regulatory fixes from Arik
* minstrel VHT fix (and a small optimisation) from Felix
* add back radiotap vendor namespace support (myself)
* random MAC address scanning for cfg80211/mac80211/hwsim (myself)
* CSA improvements (Luca)
* WoWLAN Net Detect (wake on network found) support (Luca)
* and lots of other smaller changes from many people"
Signed-off-by: John W. Linville <linville@tuxdriver.com>
snd_nativeinstruments_control_get() uses a stack as a buffer for
usb_control_msg(), but it's basically not allowed. Replace the call
with a safer helper, snd_usb_ctl_msg(), instead.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This is a specific implementation, <asm/unaligned.h> is the
multiplexer that has the arch-specific knowledge of which
of the implementations needs to be used, so include that.
This issue was revealed by kbuild testing
when <asm/unaligned.h> was added in <linux/ieee80211.h>
resulting in redefinition of get_unaligned_be16 (and
probably others).
Cc: stable@vger.kernel.org # v3.17
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch fixes newly introduced static checker warning in
ufshcd_parse_clock_info, introduced by UFS power management series.
Warning:
drivers/scsi/ufs/ufshcd-pltfrm.c:138 ufshcd_parse_clock_info()
warn: passing devm_ allocated variable to kfree. 'clkfreq'
To fix it we remove the kfree(clkfreq) statement.
In addition we removed the redundant goto label.
Signed-off-by: Dolev Raviv <draviv@codeaurora.org>
Reviewed-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This patch fixes newly introduced static checker warning in
__ufshcd_setup_clocks, introduced by UFS power management series.
Warning:
drivers/scsi/ufs/ufshcd.c:4474 __ufshcd_setup_clocks()
warn: we tested 'ret' before and it was 'false'
To fix it we remove the (!ret) from the condition.
Signed-off-by: Dolev Raviv <draviv@codeaurora.org>
Reviewed-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This patch fixes newly introduced sparse warning in
ufshcd_system_suspend, introduced by UFS power management series.
Sparse warning:
drivers/scsi/ufs/ufshcd.c:5118 ufshcd_system_suspend()
error: we previously assumed 'hba' could be null (see line 5089)
To fix it, we return 0 in case HBA is not initialized or is
not powered.
Signed-off-by: Dolev Raviv <draviv@codeaurora.org>
Reviewed-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Just use the acpi interface. That's what windows uses on this
generation and it's the only thing that seems to work reliably
on these generation parts.
You can still force the native backlight interface by setting
radeon.backlight=1
Bug:
https://bugzilla.kernel.org/show_bug.cgi?id=88501
v2: merge into above if/else block
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
After link start-up power mode will always be PWM G1. This is not
reflected in the pwr_info struct which will keep the previous values.
Since ufshcd_change_power_mode() tries to avoid unnecessary power mode
change if the requested power mode and current power mode are same,
power mode change won't execute again after driver initialization.
This patch solves the problem by setting pwr_info to PWM G1 after link
start-up.
Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>
Signed-off-by: Dolev Raviv <draviv@codeaurora.org>
Reviewed-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
UFS driver adds three well known LUs in the initialization, but those
reference counts are not decremented, so it makes ufshcd module
impossible to unload.
This fixes it by putting scsi_device_put() in the initalization, and in
order to protect concurrent access to hba->sdev_ufs_device (UFS Device
W-LU) from manual delete, increment the reference count while requesting
device power mode setting.
The rest of W-LUs (hba->sdev_boot and hba->sdev_rpmb) are not directly
used from driver, so these references in struct ufs_hba are removed.
Signed-off-by: Akinobu Mita <mita@fixstars.com>
Reviewed-by: Maya Erez <merez@codeaurora.org>
Reviewed-by: Dolev Raviv <draviv@codeaurora.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Intel Multi-Flex LUNs choke on REPORT SUPPORTED OPERATION CODES
resulting in sd_mod hanging for several minutes on startup.
The issue was introduced with WRITE SAME discovery heuristics.
Fixes: 5db44863b6eb ("[SCSI] sd: Implement support for WRITE SAME")
Signed-off-by: Christian Sünkenberg <christian.suenkenberg@hfg-karlsruhe.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: stable@vger.kernel.org
Check against !OVL_PATH_LOWER instead of OVL_PATH_MERGE. For a copied up
directory the two are currently equivalent.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Pass dentry into ovl_dir_read_merged() insted of upperpath and lowerpath.
This cleans up callers and paves the way for multi-layer directory reads.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Xattr operations can race with copy up. This does not matter as long as
we consistently fiter out "trunsted.overlay.opaque" attribute on upper
directories.
Previously we checked parent against OVL_PATH_MERGE. This is too general,
and prone to race with copy-up. I.e. we found the parent to be on the
lower layer but ovl_dentry_real() would return the copied-up dentry,
possibly with the "opaque" attribute.
So instead use ovl_path_real() and decide to filter the attributes based on
the actual type of the dentry we'll use.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
ovl_remove_and_whiteout() needs to check if upper dentry exists or not
after having locked upper parent directory.
Previously we used a "type" value computed before locking the upper parent
directory, which is susceptible to racing with copy-up.
There's a similar check in ovl_check_empty_and_clear(). This one is not
actually racy, since copy-up doesn't change the "emptyness" property of a
directory. Add a comment to this effect, and check the existence of upper
dentry locally to make the code cleaner.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Some distributions carry an "old" format of overlayfs while mainline has a
"new" format.
The distros will possibly want to keep the old overlayfs alongside the new
for compatibility reasons.
To make it possible to differentiate the two versions change the name of
the new one from "overlayfs" to "overlay".
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Reported-by: Serge Hallyn <serge.hallyn@ubuntu.com>
Cc: Andy Whitcroft <apw@canonical.com>
The /aliases node isn't always present in the device tree, but the
unittest code assumes that /aliases is there. Add a check when inserting
the testcase data to see if of_aliases needs to be updated, and undo the
settings when the nodes are removed.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Gaurav Minocha <gaurav.minocha.os@gmail.com>
Cc: <stable@vger.kernel.org>
The functions free_percpu() and module_put() test whether their argument
is NULL and then return immediately. Thus the test around the call is
not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Julian Anastasov <ja@ssi.bg>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
