| Commit message (Collapse) | Author | Age |
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TPS65910 mfd driver uses functions that are only avaiable when
REGMAP_IRQ is enabled. So "select REGMAP_IRQ" is added to mfd
Kconfig to fix below build error:
drivers/built-in.o: In function `tps65910_irq_exit':
/media/anil/kernel/drivers/mfd/tps65910.c:265: undefined reference to `regmap_del_irq_chip'
drivers/built-in.o: In function `tps65910_irq_init':
/media/anil/kernel/drivers/mfd/tps65910.c:254: undefined reference to `regmap_add_irq_chip'
drivers/built-in.o: In function `tps65910_i2c_probe':
/media/anil/kernel/drivers/mfd/tps65910.c:509: undefined reference to `regmap_irq_get_domain'
make: *** [vmlinux] Error 1
Signed-off-by: AnilKumar Ch <anilkumar@ti.com>
Tested-by: Matt Porter <mporter@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Rather than disabling the error reporting only for earlier revisions
unconditionally disable it.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Pull networking updates from David Miller:
"Much more accumulated than I would have liked due to an unexpected
bout with a nasty flu:
1) AH and ESP input don't set ECN field correctly because the
transport head of the SKB isn't set correctly, fix from Li
RongQing.
2) If netfilter conntrack zones are disabled, we can return an
uninitialized variable instead of the proper error code. Fix from
Borislav Petkov.
3) Fix double SKB free in ath9k driver beacon handling, from Felix
Feitkau.
4) Remove bogus assumption about netns cleanup ordering in
nf_conntrack, from Pablo Neira Ayuso.
5) Remove a bogus BUG_ON in the new TCP fastopen code, from Eric
Dumazet. It uses spin_is_locked() in it's test and is therefore
unsuitable for UP.
6) Fix SELINUX labelling regressions added by the tuntap multiqueue
changes, from Paul Moore.
7) Fix CRC errors with jumbo frame receive in tg3 driver, from Nithin
Nayak Sujir.
8) CXGB4 driver sets interrupt coalescing parameters only on first
queue, rather than all of them. Fix from Thadeu Lima de Souza
Cascardo.
9) Fix regression in the dispatch of read/write registers in dm9601
driver, from Tushar Behera.
10) ipv6_append_data miscalculates header length, from Romain KUNTZ.
11) Fix PMTU handling regressions on ipv4 routes, from Steffen
Klassert, Timo Teräs, and Julian Anastasov.
12) In 3c574_cs driver, add necessary parenthesis to "x << y & z"
expression. From Nickolai Zeldovich.
13) macvlan_get_size() causes underallocation netlink message space,
fix from Eric Dumazet.
14) Avoid division by zero in xfrm_replay_advance_bmp(), from Nickolai
Zeldovich. Amusingly the zero check was already there, we were
just performing it after the modulus :-)
15) Some more splice bug fixes from Eric Dumazet, which fix things
mostly eminating from how we now more aggressively use high-order
pages in SKBs.
16) Fix size calculation bug when freeing hash tables in the IPSEC
xfrm code, from Michal Kubecek.
17) Fix PMTU event propagation into socket cached routes, from Steffen
Klassert.
18) Fix off by one in TX buffer release in netxen driver, from Eric
Dumazet.
19) Fix rediculous memory allocation requirements introduced by the
tuntap multiqueue changes, from Jason Wang.
20) Remove bogus AMD platform workaround in r8169 driver that causes
major problems in normal operation, from Timo Teräs.
21) virtio-net set affinity and select queue don't handle
discontiguous cpu numbers properly, fix from Wanlong Gao.
22) Fix a route refcounting issue in loopback driver, from Eric
Dumazet. There's a similar fix coming that we might add to the
macvlan driver as well.
23) Fix SKB leaks in batman-adv's distributed arp table code, from
Matthias Schiffer.
24) r8169 driver gives descriptor ownership back the hardware before
we're done reading the VLAN tag out of it, fix from Francois
Romieu.
25) Checksums not calculated properly in GRE tunnel driver fix from
Pravin B Shelar.
26) Fix SCTP memory leak on namespace exit."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (101 commits)
dm9601: support dm9620 variant
SCTP: Free the per-net sysctl table on net exit. v2
net: phy: icplus: fix broken INTR pin settings
net: phy: icplus: Use the RGMII interface mode to configure clock delays
IP_GRE: Fix kernel panic in IP_GRE with GRE csum.
sctp: set association state to established in dupcook_a handler
ip6mr: limit IPv6 MRT_TABLE identifiers
r8169: fix vlan tag read ordering.
net: cdc_ncm: use IAD provided by the USB core
batman-adv: filter ARP packets with invalid MAC addresses in DAT
batman-adv: check for more types of invalid IP addresses in DAT
batman-adv: fix skb leak in batadv_dat_snoop_incoming_arp_reply()
net: loopback: fix a dst refcounting issue
virtio-net: reset virtqueue affinity when doing cpu hotplug
virtio-net: split out clean affinity function
virtio-net: fix the set affinity bug when CPU IDs are not consecutive
can: pch_can: fix invalid error codes
can: ti_hecc: fix invalid error codes
can: c_can: fix invalid error codes
r8169: remove the obsolete and incorrect AMD workaround
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dm9620 is a newer variant of dm9601 with more features (usb 2.0, checksum
offload, ..), but it can also be put in a dm9601 compatible mode, allowing
us to reuse the existing driver.
This does mean that the extended features like checksum offload cannot be
used, but that's hardly critical on a 100mbps interface.
Thanks to Sławek Wernikowski <slawek@wernikowski.net> for providing me
with a dm9620 based device to test.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Per-net sysctl table needs to be explicitly freed at
net exit. Otherwise we see the following with kmemleak:
unreferenced object 0xffff880402d08000 (size 2048):
comm "chrome_sandbox", pid 18437, jiffies 4310887172 (age 9097.630s)
hex dump (first 32 bytes):
b2 68 89 81 ff ff ff ff 20 04 04 f8 01 88 ff ff .h...... .......
04 00 00 00 a4 01 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff815b4aad>] kmemleak_alloc+0x21/0x3e
[<ffffffff81110352>] slab_post_alloc_hook+0x28/0x2a
[<ffffffff81113fad>] __kmalloc_track_caller+0xf1/0x104
[<ffffffff810f10c2>] kmemdup+0x1b/0x30
[<ffffffff81571e9f>] sctp_sysctl_net_register+0x1f/0x72
[<ffffffff8155d305>] sctp_net_init+0x100/0x39f
[<ffffffff814ad53c>] ops_init+0xc6/0xf5
[<ffffffff814ad5b7>] setup_net+0x4c/0xd0
[<ffffffff814ada5e>] copy_net_ns+0x6d/0xd6
[<ffffffff810938b1>] create_new_namespaces+0xd7/0x147
[<ffffffff810939f4>] copy_namespaces+0x63/0x99
[<ffffffff81076733>] copy_process+0xa65/0x1233
[<ffffffff81077030>] do_fork+0x10b/0x271
[<ffffffff8100a0e9>] sys_clone+0x23/0x25
[<ffffffff815dda73>] stub_clone+0x13/0x20
[<ffffffffffffffff>] 0xffffffffffffffff
I fixed the spelling of sysctl_header so the code actually
compiles. -- EWB.
Reported-by: Martin Mokrejs <mmokrejs@fold.natur.cuni.cz>
Signed-off-by: Vlad Yasevich <vyasevich@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fixes the setting of the INTR pin that is
valid for IP101 A/G device and not for the IP1001.
Reported-by: Anunay Saxena <anunay.saxena@st.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Like several other PHY devices which support RGMII, the IC+1001 allows
additional delays to by added to the RX_CLK and TX_CLK signals to
compensate for skew between the clock and data signals. Previously this
was always enabled, but this change makes use of the different RGMII
interface modes to allow the user to specify whether this should be
enabled.
Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Due to IP_GRE GSO support, GRE can recieve non linear skb which
results in panic in case of GRE_CSUM. Following patch fixes it by
using correct csum API.
Bug introduced in commit 6b78f16e4bdde3936b (gre: add GSO support)
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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While sctp handling a duplicate COOKIE-ECHO and the action is
'Association restart', sctp_sf_do_dupcook_a() will processing
the unexpected COOKIE-ECHO for peer restart, but it does not set
the association state to SCTP_STATE_ESTABLISHED, so the association
could stuck in SCTP_STATE_SHUTDOWN_PENDING state forever.
This violates the sctp specification:
RFC 4960 5.2.4. Handle a COOKIE ECHO when a TCB Exists
Action
A) In this case, the peer may have restarted. .....
After this, the endpoint shall enter the ESTABLISHED state.
To resolve this problem, adding a SCTP_CMD_NEW_STATE cmd to the
command list before SCTP_CMD_REPLY cmd, this will set the restart
association to SCTP_STATE_ESTABLISHED state properly and also avoid
I-bit being set in the DATA chunk header when COOKIE_ACK is bundled
with DATA chunks.
Signed-off-by: Xufeng Zhang <xufeng.zhang@windriver.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We did this for IPv4 in b49d3c1e1c "net: ipmr: limit MRT_TABLE
identifiers" but we need to do it for IPv6 as well. On IPv6 the name
is "pim6reg" instead of "pimreg" so there is one less digit allowed.
The strcpy() is in ip6mr_reg_vif().
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Control of receive descriptor must not be returned to ethernet chipset
before vlan tag processing is done.
VLAN tag receive word is now reset both in normal and error path.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Spotted-by: Timo Teras <timo.teras@iki.fi>
Cc: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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commit 9992c2e (net: cdc_ncm: workaround for missing CDC Union)
added code to lookup an IAD for the interface we are probing.
This is redundant. The USB core has already done the lookup
and saved the result in the USB interface struct. Use that
instead.
Cc: Greg Suarez <gsuarez@smithmicro.com>
Cc: Alexey Orishko <alexey.orishko@stericsson.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Included changes ares:
- fix an skb memleak in DAT
- fix the ARP filtering routine in DAT by preventing bogus entries to overwrite
already existing ones in the local cache.
- fix the ARP filtering routine in DAT by preventing it to parse and add to the
cache bogus entries
Signed-off-by: David S. Miller <davem@davemloft.net>
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We never want multicast MAC addresses in the Distributed ARP Table, so it's
best to completely ignore ARP packets containing them where we expect unicast
addresses.
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
Acked-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
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There are more types of IP addresses that may appear in ARP packets that we
don't want to process. While some of these should never appear in sane ARP
packets, a 0.0.0.0 source is used for duplicate address detection and thus seen
quite often.
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
Acked-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
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The callers of batadv_dat_snoop_incoming_arp_reply() assume the skb has been
freed when it returns true; fix this by calling kfree_skb before returning as
it is done in batadv_dat_snoop_incoming_arp_request().
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Acked-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville says:
====================
This is a batch of fixes intende for the 3.8 stream.
Regarding the iwlwifi bits, Johannes says this:
"Please pull to get a single fix from Emmanuel for a bug I introduced due
to misunderstanding the code."
Regarding the mac80211 bits, Johannes says this:
"I have a few small fixes for you:
* some mesh frames would cause encryption warnings -- fixes from Bob
* scanning would pretty much break an association if we transmitted
anything to the AP while scanning -- fix from Stanislaw
* mode injection was broken by channel contexts -- fix from Felix
* FT roaming was broken: hardware crypto would get disabled by it"
Along with that, a handful of other fixes confined to specific drivers.
Avinash Patil fixes a typo in a NULL check in mwifiex.
Larry Finger fixes a build warning in rtlwifi. Seems safe...
Stanislaw Gruszka fixes iwlegacy to prevent microcode errors when
switching from IBSS mode to STA mode.
Felix Fietkau provides a trio of ath9k fixes related to proper tuning.
Please let me know if there are problems!
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
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Add missing "!" as we are supposed to check "!card->adapter"
in PCIe suspend handler.
Cc: "3.2+" <stable@vger.kernel.org>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Reviewed-by: Sergey V. <sftp.mtuci@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Chain swapping should only be enabled when the EEPROM chainmask is set to 5,
regardless of what the runtime chainmask is.
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The kbuild test robot reports the following warning with x86_64-randconfig-x955:
warning: (RTL8192CE && RTL8192SE && RTL8192DE && RTL8723AE && RTL8192CU) selects
RTLWIFI which has unmet direct dependencies (NETDEVICES && WLAN &&
(RTL8192CE || RTL8192CU || RTL8192SE || RTL8192DE))
This warning was introduced in commit a290593, "rtlwifi: Modify files for addition
of rtl8723ae", and is d ue to a missing dependence of RTLWIFI on RTL8723AE.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: kbuild test robot <fengguang.wu@intel.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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We do not correctly change interface type when switching from
IBSS mode to STA mode, that results in microcode errors.
Resolves:
https://bugzilla.redhat.com/show_bug.cgi?id=886946
Reported-by: Jaroslav Skarvada <jskarvad@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
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Mesh PERR action frames are robust and thus may be encrypted, so add
proper head/tailroom to allow this. Fixes this warning when operating
a Mesh STA on ath5k:
WARNING: at net/mac80211/wpa.c:427 ccmp_encrypt_skb.isra.5+0x7b/0x1a0 [mac80211]()
Call Trace:
[<c011c5e7>] warn_slowpath_common+0x63/0x78
[<c011c60b>] warn_slowpath_null+0xf/0x13
[<e090621d>] ccmp_encrypt_skb.isra.5+0x7b/0x1a0 [mac80211]
[<e090685c>] ieee80211_crypto_ccmp_encrypt+0x1f/0x37 [mac80211]
[<e0917113>] invoke_tx_handlers+0xcad/0x10bd [mac80211]
[<e0917665>] ieee80211_tx+0x87/0xb3 [mac80211]
[<e0918932>] ieee80211_tx_pending+0xcc/0x170 [mac80211]
[<c0121c43>] tasklet_action+0x3e/0x65
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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A user reported warnings in ath5k due to transmitting frames with no
rates set up. The frames were Mesh PERR frames, and some debugging
showed an empty control block with just the vif pointer:
> [ 562.522682] XXX txinfo: 00000000: 00 00 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 ................
> [ 562.522688] XXX txinfo: 00000010: 00 00 00 00 00 00 00 00 54 b8 f2
> db 00 00 00 00 ........T.......
> [ 562.522693] XXX txinfo: 00000020: 00 00 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 ................
Set the IEEE80211_TX_INTFL_NEED_TXPROCESSING flag to ensure that
rate control gets run before the frame is sent.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Channel contexts are not always used with monitor interfaces. If no channel
context is set, use the oper channel, otherwise tx fails.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
[check local->use_chanctx]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Since:
commit b23b025fe246f3acc2988eb6d400df34c27cb8ae
Author: Ben Greear <greearb@candelatech.com>
Date: Fri Feb 4 11:54:17 2011 -0800
mac80211: Optimize scans on current operating channel.
we do not disable PS while going back to operational channel (on
ieee80211_scan_state_suspend) and deffer that until scan finish.
But since we are allowed to send frames, we can send a frame to AP
without PM bit set, so disable PS on AP side. Then when we switch
to off-channel (in ieee80211_scan_state_resume) we do not enable PS.
Hence we are off-channel with PS disabled, frames are not buffered
by AP.
To fix remove offchannel_ps_disable argument and always enable PS when
going off-channel and disable it when going on-channel, like it was
before.
Cc: stable@vger.kernel.org # 2.6.39+
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Tested-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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During FT roaming, wpa_supplicant attempts to set the
key before association. This used to be rejected, but
as a side effect of my commit 66e67e418908442389d3a9e
("mac80211: redesign auth/assoc") the key was accepted
causing hardware crypto to not be used for it as the
station isn't added to the driver yet.
It would be possible to accept the key and then add it
to the driver when the station has been added. However,
this may run into issues with drivers using the state-
based station adding if they accept the key only after
association like it used to be.
For now, revert to the behaviour from before the auth
and assoc change.
Cc: stable@vger.kernel.org
Reported-by: Cédric Debarge <cedric.debarge@acksys.fr>
Tested-by: Cédric Debarge <cedric.debarge@acksys.fr>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes
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The rate scaling won't treat the information in a frame
with IEEE80211_TX_CTL_AMPDU set if IEEE80211_TX_STAT_AMPDU
is cleared. But all the frames coming from an AGG tx queue
have IEEE80211_TX_CTL_AMPDU set, and IEEE80211_TX_STAT_AMPDU
is set only if the frame was sent in an AMPDU.
This means that all the data in frames in AGG tx queues that
aren't sent as an AMPDU is thrown away.
This is even more harmful when in bad link conditions, the
frames are sent in an AMPDU and then finally sent as single
frame. So a lot of failures weren't reported and the rate
scaling got stuck in high rates leading to very poor
connectivity.
Fix that by clearing IEEE80211_TX_CTL_AMPDU when the frame
isn't part of an AMPDU.
This bug was introduced by
2eb81a40aa521035ff9c8c8309e482dff523f8c9
iwlwifi: don't clear CTL_AMPDU on frame status
This fix basically reverts the aforementioned commit.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Ben Greear reported crashes in ip_rcv_finish() on a stress
test involving many macvlans.
We tracked the bug to a dst use after free. ip_rcv_finish()
was calling dst->input() and got garbage for dst->input value.
It appears the bug is in loopback driver, lacking
a skb_dst_force() before calling netif_rx().
As a result, a non refcounted dst, normally protected by a
RCU read_lock section, was escaping this section and could
be freed before the packet being processed.
[<ffffffff813a3c4d>] loopback_xmit+0x64/0x83
[<ffffffff81477364>] dev_hard_start_xmit+0x26c/0x35e
[<ffffffff8147771a>] dev_queue_xmit+0x2c4/0x37c
[<ffffffff81477456>] ? dev_hard_start_xmit+0x35e/0x35e
[<ffffffff8148cfa6>] ? eth_header+0x28/0xb6
[<ffffffff81480f09>] neigh_resolve_output+0x176/0x1a7
[<ffffffff814ad835>] ip_finish_output2+0x297/0x30d
[<ffffffff814ad6d5>] ? ip_finish_output2+0x137/0x30d
[<ffffffff814ad90e>] ip_finish_output+0x63/0x68
[<ffffffff814ae412>] ip_output+0x61/0x67
[<ffffffff814ab904>] dst_output+0x17/0x1b
[<ffffffff814adb6d>] ip_local_out+0x1e/0x23
[<ffffffff814ae1c4>] ip_queue_xmit+0x315/0x353
[<ffffffff814adeaf>] ? ip_send_unicast_reply+0x2cc/0x2cc
[<ffffffff814c018f>] tcp_transmit_skb+0x7ca/0x80b
[<ffffffff814c3571>] tcp_connect+0x53c/0x587
[<ffffffff810c2f0c>] ? getnstimeofday+0x44/0x7d
[<ffffffff810c2f56>] ? ktime_get_real+0x11/0x3e
[<ffffffff814c6f9b>] tcp_v4_connect+0x3c2/0x431
[<ffffffff814d6913>] __inet_stream_connect+0x84/0x287
[<ffffffff814d6b38>] ? inet_stream_connect+0x22/0x49
[<ffffffff8108d695>] ? _local_bh_enable_ip+0x84/0x9f
[<ffffffff8108d6c8>] ? local_bh_enable+0xd/0x11
[<ffffffff8146763c>] ? lock_sock_nested+0x6e/0x79
[<ffffffff814d6b38>] ? inet_stream_connect+0x22/0x49
[<ffffffff814d6b49>] inet_stream_connect+0x33/0x49
[<ffffffff814632c6>] sys_connect+0x75/0x98
This bug was introduced in linux-2.6.35, in commit
7fee226ad2397b (net: add a noref bit on skb dst)
skb_dst_force() is enforced in dev_queue_xmit() for devices having a
qdisc.
Reported-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Tested-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add a cpu notifier to virtio-net, so that we can reset the
virtqueue affinity if the cpu hotplug happens. It improve
the performance through enabling or disabling the virtqueue
affinity after doing cpu hotplug.
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Eric Dumazet <erdnetdev@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: virtualization@lists.linux-foundation.org
Cc: netdev@vger.kernel.org
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Split out the clean affinity function to virtnet_clean_affinity().
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Eric Dumazet <erdnetdev@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: virtualization@lists.linux-foundation.org
Cc: netdev@vger.kernel.org
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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As Michael mentioned, set affinity and select queue will not work very
well when CPU IDs are not consecutive, this can happen with hot unplug.
Fix this bug by traversal the online CPUs, and create a per cpu variable
to find the mapping from CPU to the preferable virtual-queue.
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Eric Dumazet <erdnetdev@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: virtualization@lists.linux-foundation.org
Cc: netdev@vger.kernel.org
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Errors in CAN protocol (location) are reported in data[3] of the can
frame instead of data[2].
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Errors in CAN protocol (location) are reported in data[3] of the can
frame instead of data[2].
Cc: linux-stable <stable@vger.kernel.org>
Cc: Anant Gole <anantgole@ti.com>
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Errors in CAN protocol (location) are reported in data[3] of the can
frame instead of data[2].
Cc: linux-stable <stable@vger.kernel.org>
Cc: Bhupesh Sharma <bhupesh.sharma@st.com>
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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This was introduced in commit 6dccd16 "r8169: merge with version
6.001.00 of Realtek's r8169 driver". I did not find the version
6.001.00 online, but in 6.002.00 or any later r8169 from Realtek
this hunk is no longer present.
Also commit 05af214 "r8169: fix Ethernet Hangup for RTL8110SC
rev d" claims to have fixed this issue otherwise.
The magic compare mask of 0xfffe000 is dubious as it masks
parts of the Reserved part, and parts of the VLAN tag. But this
does not make much sense as the VLAN tag parts are perfectly
valid there. In matter of fact this seems to be triggered with
any VLAN tagged packet as RxVlanTag bit is matched. I would
suspect 0xfffe0000 was intended to test reserved part only.
Finally, this hunk is evil as it can cause more packets to be
handled than what was NAPI quota causing net/core/dev.c:
net_rx_action(): WARN_ON_ONCE(work > weight) to trigger, and
mess up the NAPI state causing device to hang.
As result, any system using VLANs and having high receive
traffic (so that NAPI poll budget limits rtl_rx) would result
in device hang.
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We create new flow caches when a new flow is identified by tuntap, This may lead
some issues:
- userspace may produce a huge amount of short live flows to exhaust host memory
- the unlimited number of flow caches may produce a long list which increase the
time in the linear searching
Solve this by introducing a limit of total number of flow caches.
Cc: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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A MAX_TAP_QUEUES(1024) queues of tuntap device is always allocated
unconditionally even userspace only requires a single queue device. This is
unnecessary and will lead a very high order of page allocation when has a high
possibility to fail. Solving this by creating a one queue net device when
userspace only use one queue and also reduce MAX_TAP_QUEUES to
DEFAULT_MAX_NUM_RSS_QUEUES which can guarantee the success of
the allocation.
Reported-by: Dirk Hohndel <dirk@hohndel.org>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Reverting 328d7b8 and instead adding an exception for the
Sierra Wireless MC7710.
commit 328d7b8 (net: cdc_mbim: send ZLP after max sized NTBs)
added a workaround for an issue observed on one specific device.
Concerns were raised that this workaround adds a performance
penalty to all devices based on questionable, if not buggy,
behaviour of a single device:
"If you add ZLP for NTBs of dwNtbOutMaxSize, you are heavily affecting CPU
load, increasing interrupt load by factor of 2 in high load traffic
scenario and possibly decreasing throughput for all other devices
which behaves correctly."
"The idea of NCM was to avoid extra ZLPs. If your transfer is exactly
dwNtbOutMaxSize, it's known, you can submit such request on the receiver
side and you do not need any EOT indicatation, so the frametime can be
used for useful data."
Adding a device specific exception to prevent the workaround from
affecting well behaved devices.
The assumption here is that needing a ZLP is truly an *exception*.
We do not yet have enough data to verify this. The generic
workaround in commit 328d7b8 should be considered acceptable despite
the performance penalty if the exception list becomes a maintainance
hassle.
Cc: Alexey ORISHKO <alexey.orishko@stericsson.com>
Cc: Yauheni Kaliuta <y.kaliuta@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git commit 9cb3a50c (ipv4: Invalidate the socket cached route on
pmtu events if possible) introduced a refcount problem. We don't
get a refcount on the route if we get it from__sk_dst_get(), but
we need one if we want to reuse this route because __sk_dst_set()
releases the refcount of the old route. This patch adds proper
refcount handling for that case. We introduce a 'new' flag to
indicate that we are going to use a new route and we release the
old route only if we replace it by a new one.
Reported-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec
Steffen Klassert says:
====================
1) The transport header did not point to the right place after
esp/ah processing on tunnel mode in the receive path. As a
result, the ECN field of the inner header was not set correctly,
fixes from Li RongQing.
2) We did a null check too late in one of the xfrm_replay advance
functions. This can lead to a division by zero, fix from
Nickolai Zeldovich.
3) The size calculation of the hash table missed the muiltplication
with the actual struct size when the hash table is freed.
We might call the wrong free function, fix from Michal Kubecek.
4) On IPsec pmtu events we can't access the transport headers of
the original packet, so force a relookup for all routes
to notify about the pmtu event.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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On IPsec pmtu events we can't access the transport headers of
the original packet, so we can't find the socket that sent
the packet. The only chance to notify the socket about the
pmtu change is to force a relookup for all routes. This
patch implenents this for the IPsec protocols.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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Missing multiplication of block size by sizeof(struct hlist_head)
can cause xfrm_hash_free() to be called with wrong second argument
so that kfree() is called on a block allocated with vzalloc() or
__get_free_pages() or free_pages() is called with wrong order when
a namespace with enough policies is removed.
Bug introduced by commit a35f6c5d, i.e. versions >= 2.6.29 are
affected.
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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All of the xfrm_replay->advance functions in xfrm_replay.c check if
x->replay_esn->replay_window is zero (and return if so). However,
one of them, xfrm_replay_advance_bmp(), divides by that value (in the
'%' operator) before doing the check, which can potentially trigger
a divide-by-zero exception. Some compilers will also assume that the
earlier division means the value cannot be zero later, and thus will
eliminate the subsequent zero check as dead code.
This patch moves the division to after the check.
Signed-off-by: Nickolai Zeldovich <nickolai@csail.mit.edu>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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IPsec tunnel does not set ECN field to CE in inner header when
the ECN field in the outer header is CE, and the ECN field in
the inner header is ECT(0) or ECT(1).
The cause is ipip6_hdr() does not return the correct address of
inner header since skb->transport-header is not the inner header
after esp6_input_done2(), or ah6_input().
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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IPsec tunnel does not set ECN field to CE in inner header when
the ECN field in the outer header is CE, and the ECN field in
the inner header is ECT(0) or ECT(1).
The cause is ipip_hdr() does not return the correct address of
inner header since skb->transport-header is not the inner header
after esp_input_done2(), or ah_input().
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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