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2016-12-23net/sched: act_tunnel_key: Fix setting UDP dst port in metadata under IPv6Or Gerlitz1-2/+2
The UDP dst port was provided to the helper function which sets the IPv6 IP tunnel meta-data under a wrong param order, fix that. Fixes: 75bfbca01e48 ('net/sched: act_tunnel_key: Add UDP dst port option') Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Reviewed-by: Hadar Hen Zion <hadarh@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-23stmmac: CSR clock configuration fixjpinto3-6/+6
When testing stmmac with my QoS reference design I checked a problem in the CSR clock configuration that was impossibilitating the phy discovery, since every read operation returned 0x0000ffff. This patch fixes the issue. Signed-off-by: Joao Pinto <jpinto@synopsys.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-22net: ipv4: Don't crash if passing a null sk to ip_do_redirect.Lorenzo Colitti1-1/+2
Commit e2d118a1cb5e ("net: inet: Support UID-based routing in IP protocols.") made ip_do_redirect call sock_net(sk) to determine the network namespace of the passed-in socket. This crashes if sk is NULL. Fix this by getting the network namespace from the skb instead. Fixes: e2d118a1cb5e ("net: inet: Support UID-based routing in IP protocols.") Signed-off-by: Lorenzo Colitti <lorenzo@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-21net: fddi: skfp: use %p format specifier for addresses rather than %xColin Ian King3-8/+8
Trivial fix: Addresses should be printed using the %p format specifier rather than using %x. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-21tcp: add a missing barrier in tcp_tasklet_func()Eric Dumazet1-0/+1
Madalin reported crashes happening in tcp_tasklet_func() on powerpc64 Before TSQ_QUEUED bit is cleared, we must ensure the changes done by list_del(&tp->tsq_node); are committed to memory, otherwise corruption might happen, as an other cpu could catch TSQ_QUEUED clearance too soon. We can notice that old kernels were immune to this bug, because TSQ_QUEUED was cleared after a bh_lock_sock(sk)/bh_unlock_sock(sk) section, but they could have missed a kick to write additional bytes, when NIC interrupts for a given flow are spread to multiple cpus. Affected TCP flows would need an incoming ACK or RTO timer to add more packets to the pipe. So overall situation should be better now. Fixes: b223feb9de2a ("tcp: tsq: add shortcut in tcp_tasklet_func()") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Madalin Bucur <madalin.bucur@nxp.com> Tested-by: Madalin Bucur <madalin.bucur@nxp.com> Tested-by: Xing Lei <xing.lei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-21net: mvpp2: fix dma unmapping of TX buffers for fragmentsThomas Petazzoni1-29/+30
Since commit 71ce391dfb784 ("net: mvpp2: enable proper per-CPU TX buffers unmapping"), we are not correctly DMA unmapping TX buffers for fragments. Indeed, the mvpp2_txq_inc_put() function only stores in the txq_cpu->tx_buffs[] array the physical address of the buffer to be DMA-unmapped when skb != NULL. In addition, when DMA-unmapping, we use skb_headlen(skb) to get the size to be unmapped. Both of this works fine for TX descriptors that are associated directly to a SKB, but not the ones that are used for fragments, with a NULL pointer as skb: - We have a NULL physical address when calling DMA unmap - skb_headlen(skb) crashes because skb is NULL This causes random crashes when fragments are used. To solve this problem, we need to: - Store the physical address of the buffer to be unmapped unconditionally, regardless of whether it is tied to a SKB or not. - Store the length of the buffer to be unmapped, which requires a new field. Instead of adding a third array to store the length of the buffer to be unmapped, and as suggested by David Miller, this commit refactors the tx_buffs[] and tx_skb[] arrays of 'struct mvpp2_txq_pcpu' into a separate structure 'mvpp2_txq_pcpu_buf', to which a 'size' field is added. Therefore, instead of having three arrays to allocate/free, we have a single one, which also improve data locality, reducing the impact on the CPU cache. Fixes: 71ce391dfb784 ("net: mvpp2: enable proper per-CPU TX buffers unmapping") Reported-by: Raphael G <raphael.glon@corp.ovh.com> Cc: Raphael G <raphael.glon@corp.ovh.com> Cc: stable@vger.kernel.org Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-21net: ethernet: stmmac: dwmac-rk: make clk enablement first in powerupHeiko Stübner1-4/+4
Right now the dwmac-rk tries to set up the GRF-specific speed and link options before enabling clocks, phys etc and on previous socs this works because the GRF is supplied on the whole by one clock. On the rk3399 however the GRF (General Register Files) clock-supply has been split into multiple clocks and while there is no specific grf-gmac clock like for other sub-blocks, it seems the mac-specific portions are actually supplied by the general mac clock. This results in hangs on rk3399 boards if the driver is build as module. When built in te problem of course doesn't surface, as the clocks are of course still on at the stage before clock_disable_unused. To solve this, simply move the clock enablement to the first position in the powerup callback. This is also a good idea in general to enable clocks before everything else. Tested on rk3288, rk3368 and rk3399 the dwmac still works on all of them. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-21be2net: Increase skb headroom size to 256 bytesKalesh A P1-1/+1
The driver currently allocates 128 bytes of skb headroom. This was found to be insufficient with some configurations like Geneve tunnels, which resulted in skb head reallocations. Increase the headroom to 256 bytes to fix this. Signed-off-by: Kalesh A P <kalesh-anakkur.purayil@broadcom.com> Signed-off-by: Suresh Reddy <suresh.reddy@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-21rtlwifi: Fix kernel oops introduced with commit e49656147359Larry Finger1-1/+2
With commit e49656147359 {"rtlwifi: Use dev_kfree_skb_irq instead of kfree_skb"), the method used to free an skb was changed because the kfree_skb() was inside a spinlock. What was forgotten is that kfree_skb() guards against a NULL value for the argument. Routine dev_kfree_skb_irq() does not, and a test is needed to prevent kernel panics. Fixes: e49656147359 ("rtlwifi: Use dev_kfree_skb_irq instead of kfree_skb") Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stable <stable@vger.kernel.org> # 4.9+ Cc: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-12-21ath9k: do not return early to fix rcu unlockingTobias Klausmann1-1/+1
Starting with commit d94a461d7a7d ("ath9k: use ieee80211_tx_status_noskb where possible") the driver uses rcu_read_lock() && rcu_read_unlock(), yet on returning early in ath_tx_edma_tasklet() the unlock is missing leading to stalls and suspicious RCU usage: =============================== [ INFO: suspicious RCU usage. ] 4.9.0-rc8 #11 Not tainted ------------------------------- kernel/rcu/tree.c:705 Illegal idle entry in RCU read-side critical section.! other info that might help us debug this: RCU used illegally from idle CPU! rcu_scheduler_active = 1, debug_locks = 0 RCU used illegally from extended quiescent state! 1 lock held by swapper/7/0: #0: ( rcu_read_lock ){......} , at: [<ffffffffa06ed110>] ath_tx_edma_tasklet+0x0/0x450 [ath9k] stack backtrace: CPU: 7 PID: 0 Comm: swapper/7 Not tainted 4.9.0-rc8 #11 Hardware name: Acer Aspire V3-571G/VA50_HC_CR, BIOS V2.21 12/16/2013 ffff88025efc3f38 ffffffff8132b1e5 ffff88017ede4540 0000000000000001 ffff88025efc3f68 ffffffff810a25f7 ffff88025efcee60 ffff88017edebdd8 ffff88025eeb5400 0000000000000091 ffff88025efc3f88 ffffffff810c3cd4 Call Trace: <IRQ> [<ffffffff8132b1e5>] dump_stack+0x68/0x93 [<ffffffff810a25f7>] lockdep_rcu_suspicious+0xd7/0x110 [<ffffffff810c3cd4>] rcu_eqs_enter_common.constprop.85+0x154/0x200 [<ffffffff810c5a54>] rcu_irq_exit+0x44/0xa0 [<ffffffff81058631>] irq_exit+0x61/0xd0 [<ffffffff81018d25>] do_IRQ+0x65/0x110 [<ffffffff81672189>] common_interrupt+0x89/0x89 <EOI> [<ffffffff814ffe11>] ? cpuidle_enter_state+0x151/0x200 [<ffffffff814ffee2>] cpuidle_enter+0x12/0x20 [<ffffffff8109a6ae>] call_cpuidle+0x1e/0x40 [<ffffffff8109a8f6>] cpu_startup_entry+0x146/0x220 [<ffffffff810336f8>] start_secondary+0x148/0x170 Signed-off-by: Tobias Klausmann <tobias.johannes.klausmann@mni.thm.de> Fixes: d94a461d7a7d ("ath9k: use ieee80211_tx_status_noskb where possible") Cc: <stable@vger.kernel.org> # v4.9 Acked-by: Felix Fietkau <nbd@nbd.name> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Tested-by: Gabriel Craciunescu <nix.or.die@gmail.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-12-20RDS: use rb_entry()Geliang Tang1-1/+1
To make the code clearer, use rb_entry() instead of container_of() to deal with rbtree. Signed-off-by: Geliang Tang <geliangtang@gmail.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-20net_sched: sch_netem: use rb_entry()Geliang Tang1-1/+1
To make the code clearer, use rb_entry() instead of container_of() to deal with rbtree. Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-20net_sched: sch_fq: use rb_entry()Geliang Tang1-7/+7
To make the code clearer, use rb_entry() instead of container_of() to deal with rbtree. Signed-off-by: Geliang Tang <geliangtang@gmail.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-20net/mlx5: use rb_entry()Geliang Tang1-1/+1
To make the code clearer, use rb_entry() instead of container_of() to deal with rbtree. Signed-off-by: Geliang Tang <geliangtang@gmail.com> Acked-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-20ethernet: sfc: Add Kconfig entry for vendor SolarflareTobias Klauser2-1/+21
Since commit 5a6681e22c14 ("sfc: separate out SFC4000 ("Falcon") support into new sfc-falcon driver") there are two drivers for Solarflare devices, but both still show up directly beneath "Ethernet driver support" in the Kconfig. Follow the pattern of other vendors and group them beneath an own vendor Kconfig entry for Solarflare. Cc: Edward Cree <ecree@solarflare.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Acked-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-20sctp: not copying duplicate addrs to the assoc's bind address listXin Long2-0/+6
sctp.local_addr_list is a global address list that is supposed to include all the local addresses. sctp updates this list according to NETDEV_UP/ NETDEV_DOWN notifications. However, if multiple NICs have the same address, the global list would have duplicate addresses. Even if for one NIC, promote secondaries in __inet_del_ifa can also lead to accumulating duplicate addresses. When sctp binds address 'ANY' and creates a connection, it copies all the addresses from global list into asoc's bind addr list, which makes sctp pack the duplicate addresses into INIT/INIT_ACK packets. This patch is to filter the duplicate addresses when copying the addrs from global list in sctp_copy_local_addr_list and unpacking addr_param from cookie in sctp_raw_to_bind_addrs to asoc's bind addr list. Note that we can't filter the duplicate addrs when global address list gets updated, As NETDEV_DOWN event may remove an addr that still exists in another NIC. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-20sctp: reduce indent level in sctp_copy_local_addr_listXin Long1-18/+19
This patch is to reduce indent level by using continue when the addr is not allowed, and also drop end_copy by using break. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-20ARM: dts: hix5hd2: don't change the existing compatible stringDongpo Li1-2/+2
The SoC hix5hd2 compatible string has the suffix "-gmac" and we should not change it. We should only add the generic compatible string "hisi-gmac-v1". Fixes: 0855950ba580 ("ARM: dts: hix5hd2: add gmac generic compatible and clock names") Signed-off-by: Dongpo Li <lidongpo@hisilicon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-20net: hix5hd2_gmac: fix compatible strings nameDongpo Li2-11/+15
The SoC hix5hd2 compatible string has the suffix "-gmac" and we should not change its compatible string. So we should name all the compatible string with the suffix "-gmac". Creating a new name suffix "-gemac" is unnecessary. We also add another SoC compatible string in dt binding documentation and describe which generic version the SoC belongs to. Fixes: d0fb6ba75dc0 ("net: hix5hd2_gmac: add generic compatible string") Signed-off-by: Dongpo Li <lidongpo@hisilicon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-20openvswitch: Add a missing break statement.Jarno Rajahalme1-0/+1
Add a break statement to prevent fall-through from OVS_KEY_ATTR_ETHERNET to OVS_KEY_ATTR_TUNNEL. Without the break actions setting ethernet addresses fail to validate with log messages complaining about invalid tunnel attributes. Fixes: 0a6410fbde ("openvswitch: netlink: support L3 packets") Signed-off-by: Jarno Rajahalme <jarno@ovn.org> Acked-by: Pravin B Shelar <pshelar@ovn.org> Acked-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-20net: netcp: ethss: fix 10gbe host port tx pri map configurationWingMan Kwok1-1/+2
This patch adds the missing 10gbe host port tx priority map configurations. Signed-off-by: WingMan Kwok <w-kwok2@ti.com> Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-20net: netcp: ethss: fix errors in ethtool opsWingMan Kwok1-5/+16
In ethtool ops, it needs to retrieve the corresponding ethss module (gbe or xgbe) from the net_device structure. Prior to this patch, the retrieving procedure only checks for the gbe module. This patch fixes the issue by checking the xgbe module if the net_device structure does not correspond to the gbe module. Signed-off-by: WingMan Kwok <w-kwok2@ti.com> Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-20fsl/fman: enable compilation on ARM64Madalin Bucur1-1/+1
Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-20fsl/fman: A007273 only applies to PPC SoCsMadalin Bucur1-0/+8
Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com> Reviewed-by: Camelia Groza <camelia.groza@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-20powerpc: fsl/fman: remove fsl,fman from of_device_ids[]Madalin Bucur2-3/+7
The fsl/fman drivers will use of_platform_populate() on all supported platforms. Call of_platform_populate() to probe the FMan sub-nodes. Signed-off-by: Igal Liberman <igal.liberman@freescale.com> Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com> Acked-by: Scott Wood <oss@buserror.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-20fsl/fman: fix 1G support for QSGMII interfacesMadalin Bucur1-0/+1
QSGMII ports were not advertising 1G speed. Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com> Reviewed-by: Camelia Groza <camelia.groza@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-20dt: bindings: net: use boolean dt properties for eee broken modesjbrunet2-21/+8
The patches regarding eee-broken-modes was merged before all people involved could find an agreement on the best way to move forward. While we agreed on having a DT property to mark particular modes as broken, the value used for eee-broken-modes mapped the phy register in very direct way. Because of this, the concern is that it could be used to implement configuration policies instead of describing a broken HW. In the end, having a boolean property for each mode seems to be preferred over one bit field value mapping the register (too) directly. Cc: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-20net: phy: use boolean dt properties for eee broken modesjbrunet1-3/+15
The patches regarding eee-broken-modes was merged before all people involved could find an agreement on the best way to move forward. While we agreed on having a DT property to mark particular modes as broken, the value used for eee-broken-modes mapped the phy register in very direct way. Because of this, the concern is that it could be used to implement configuration policies instead of describing a broken HW. In the end, having a boolean property for each mode seems to be preferred over one bit field value mapping the register (too) directly. Cc: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-20net: phy: fix sign type error in genphy_config_eee_advertjbrunet1-2/+2
In genphy_config_eee_advert, the return value of phy_read_mmd_indirect is checked to know if the register could be accessed but the result is assigned to a 'u32'. Changing to 'int' to correctly get errors from phy_read_mmd_indirect. Fixes: d853d145ea3e ("net: phy: add an option to disable EEE advertisement") Reported-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-20printk: fix typo in CONSOLE_LOGLEVEL_DEFAULT help textBorislav Petkov1-1/+1
s/prink/printk/ Link: http://lkml.kernel.org/r/20161215170111.19075-1-bp@alien8.de Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Olof Johansson <olof@lixom.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-20ratelimit: fix WARN_ON_RATELIMIT return valueJiri Slaby1-2/+5
The macro is to be used similarly as WARN_ON as: if (WARN_ON_RATELIMIT(condition, state)) do_something(); One would expect only 'condition' to affect the 'if', but WARN_ON_RATELIMIT does internally only: WARN_ON((condition) && __ratelimit(state)) So the 'if' is affected by the ratelimiting state too. Fix this by returning 'condition' in any case. Note that nobody uses WARN_ON_RATELIMIT yet, so there is nothing to worry about. But I was about to use it and was a bit surprised. Link: http://lkml.kernel.org/r/20161215093224.23126-1-jslaby@suse.cz Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-20kcov: make kcov work properly with KASLR enabledAlexander Popov1-1/+7
Subtract KASLR offset from the kernel addresses reported by kcov. Tested on x86_64 and AArch64 (Hikey LeMaker). Link: http://lkml.kernel.org/r/1481417456-28826-3-git-send-email-alex.popov@linux.com Signed-off-by: Alexander Popov <alex.popov@linux.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Rob Herring <robh@kernel.org> Cc: Kefeng Wang <wangkefeng.wang@huawei.com> Cc: AKASHI Takahiro <takahiro.akashi@linaro.org> Cc: Jon Masters <jcm@redhat.com> Cc: David Daney <david.daney@cavium.com> Cc: Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Nicolai Stange <nicstange@gmail.com> Cc: James Morse <james.morse@arm.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Andrey Konovalov <andreyknvl@google.com> Cc: Alexander Popov <alex.popov@linux.com> Cc: syzkaller <syzkaller@googlegroups.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-20arm64: setup: introduce kaslr_offset()Alexander Popov2-4/+9
Introduce kaslr_offset() similar to x86_64 to fix kcov. [ Updated by Will Deacon ] Link: http://lkml.kernel.org/r/1481417456-28826-2-git-send-email-alex.popov@linux.com Signed-off-by: Alexander Popov <alex.popov@linux.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Rob Herring <robh@kernel.org> Cc: Kefeng Wang <wangkefeng.wang@huawei.com> Cc: AKASHI Takahiro <takahiro.akashi@linaro.org> Cc: Jon Masters <jcm@redhat.com> Cc: David Daney <david.daney@cavium.com> Cc: Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Nicolai Stange <nicstange@gmail.com> Cc: James Morse <james.morse@arm.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Andrey Konovalov <andreyknvl@google.com> Cc: Alexander Popov <alex.popov@linux.com> Cc: syzkaller <syzkaller@googlegroups.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-20mm: fadvise: avoid expensive remote LRU cache draining after FADV_DONTNEEDJohannes Weiner1-1/+14
When FADV_DONTNEED cannot drop all pages in the range, it observes that some pages might still be on per-cpu LRU caches after recent instantiation and so initiates remote calls to all CPUs to flush their local caches. However, in most cases, the fadvise happens from the same context that instantiated the pages, and any pre-LRU pages in the specified range are most likely sitting on the local CPU's LRU cache, and so in many cases this results in unnecessary remote calls, which, in a loaded system, can hold up the fadvise() call significantly. [ I didn't record it in the extreme case we observed at Facebook, unfortunately. We had a slow-to-respond system and noticed it lru_add_drain_all() leading the profile during fadvise calls. This patch came out of thinking about the code and how we commonly call FADV_DONTNEED. FWIW, I wrote a silly directory tree walker/searcher that recurses through /usr to read and FADV_DONTNEED each file it finds. On a 2 socket 40 ht machine, over 1% is spent in lru_add_drain_all(). With the patch, that cost is gone; the local drain cost shows at 0.09%. ] Try to avoid the remote call by flushing the local LRU cache before even attempting to invalidate anything. It's a cheap operation, and the local LRU cache is the most likely to hold any pre-LRU pages in the specified fadvise range. Link: http://lkml.kernel.org/r/20161214210017.GA1465@cmpxchg.org Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Mel Gorman <mgorman@suse.de> Acked-by: Hillf Danton <hillf.zj@alibaba-inc.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-20ima: platform-independent hash valueAndreas Steffen1-2/+4
For remote attestion it is important for the ima measurement values to be platform-independent. Therefore integer fields to be hashed must be converted to canonical format. Link: http://lkml.kernel.org/r/1480554346-29071-11-git-send-email-zohar@linux.vnet.ibm.com Signed-off-by: Andreas Steffen <andreas.steffen@strongswan.org> Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com> Cc: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Dmitry Kasatkin <dmitry.kasatkin@gmail.com> Cc: Josh Sklar <sklar@linux.vnet.ibm.com> Cc: Dave Young <dyoung@redhat.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Baoquan He <bhe@redhat.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Stewart Smith <stewart@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-20ima: define a canonical binary_runtime_measurements list formatMimi Zohar6-13/+66
The IMA binary_runtime_measurements list is currently in platform native format. To allow restoring a measurement list carried across kexec with a different endianness than the targeted kernel, this patch defines little-endian as the canonical format. For big endian systems wanting to save/restore the measurement list from a system with a different endianness, a new boot command line parameter named "ima_canonical_fmt" is defined. Considerations: use of the "ima_canonical_fmt" boot command line option will break existing userspace applications on big endian systems expecting the binary_runtime_measurements list to be in platform native format. Link: http://lkml.kernel.org/r/1480554346-29071-10-git-send-email-zohar@linux.vnet.ibm.com Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com> Acked-by: Dmitry Kasatkin <dmitry.kasatkin@gmail.com> Cc: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Andreas Steffen <andreas.steffen@strongswan.org> Cc: Josh Sklar <sklar@linux.vnet.ibm.com> Cc: Dave Young <dyoung@redhat.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Baoquan He <bhe@redhat.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Stewart Smith <stewart@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-20ima: support restoring multiple template formatsMimi Zohar1-3/+49
The configured IMA measurement list template format can be replaced at runtime on the boot command line, including a custom template format. This patch adds support for restoring a measuremement list containing multiple builtin/custom template formats. Link: http://lkml.kernel.org/r/1480554346-29071-9-git-send-email-zohar@linux.vnet.ibm.com Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com> Acked-by: Dmitry Kasatkin <dmitry.kasatkin@gmail.com> Cc: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Andreas Steffen <andreas.steffen@strongswan.org> Cc: Josh Sklar <sklar@linux.vnet.ibm.com> Cc: Dave Young <dyoung@redhat.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Baoquan He <bhe@redhat.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Stewart Smith <stewart@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-20ima: store the builtin/custom template definitions in a listMimi Zohar3-11/+43
The builtin and single custom templates are currently stored in an array. In preparation for being able to restore a measurement list containing multiple builtin/custom templates, this patch stores the builtin and custom templates as a linked list. This will permit defining more than one custom template per boot. Link: http://lkml.kernel.org/r/1480554346-29071-8-git-send-email-zohar@linux.vnet.ibm.com Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com> Acked-by: Dmitry Kasatkin <dmitry.kasatkin@gmail.com> Cc: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Andreas Steffen <andreas.steffen@strongswan.org> Cc: Josh Sklar <sklar@linux.vnet.ibm.com> Cc: Dave Young <dyoung@redhat.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Baoquan He <bhe@redhat.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Stewart Smith <stewart@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-20ima: on soft reboot, save the measurement listMimi Zohar5-1/+135
The TPM PCRs are only reset on a hard reboot. In order to validate a TPM's quote after a soft reboot (eg. kexec -e), the IMA measurement list of the running kernel must be saved and restored on boot. This patch uses the kexec buffer passing mechanism to pass the serialized IMA binary_runtime_measurements to the next kernel. Link: http://lkml.kernel.org/r/1480554346-29071-7-git-send-email-zohar@linux.vnet.ibm.com Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com> Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Dmitry Kasatkin <dmitry.kasatkin@gmail.com> Cc: Andreas Steffen <andreas.steffen@strongswan.org> Cc: Josh Sklar <sklar@linux.vnet.ibm.com> Cc: Dave Young <dyoung@redhat.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Baoquan He <bhe@redhat.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Stewart Smith <stewart@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-20powerpc: ima: send the kexec buffer to the next kernelThiago Jung Bauermann5-6/+129
The IMA kexec buffer allows the currently running kernel to pass the measurement list via a kexec segment to the kernel that will be kexec'd. This is the architecture-specific part of setting up the IMA kexec buffer for the next kernel. It will be used in the next patch. Link: http://lkml.kernel.org/r/1480554346-29071-6-git-send-email-zohar@linux.vnet.ibm.com Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com> Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Andreas Steffen <andreas.steffen@strongswan.org> Cc: Dmitry Kasatkin <dmitry.kasatkin@gmail.com> Cc: Josh Sklar <sklar@linux.vnet.ibm.com> Cc: Dave Young <dyoung@redhat.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Baoquan He <bhe@redhat.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Stewart Smith <stewart@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-20ima: maintain memory size needed for serializing the measurement listMimi Zohar3-2/+64
In preparation for serializing the binary_runtime_measurements, this patch maintains the amount of memory required. Link: http://lkml.kernel.org/r/1480554346-29071-5-git-send-email-zohar@linux.vnet.ibm.com Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com> Acked-by: Dmitry Kasatkin <dmitry.kasatkin@gmail.com> Cc: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Andreas Steffen <andreas.steffen@strongswan.org> Cc: Josh Sklar <sklar@linux.vnet.ibm.com> Cc: Dave Young <dyoung@redhat.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Baoquan He <bhe@redhat.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Stewart Smith <stewart@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-20ima: permit duplicate measurement list entriesMimi Zohar1-6/+10
Measurements carried across kexec need to be added to the IMA measurement list, but should not prevent measurements of the newly booted kernel from being added to the measurement list. This patch adds support for allowing duplicate measurements. The "boot_aggregate" measurement entry is the delimiter between soft boots. Link: http://lkml.kernel.org/r/1480554346-29071-4-git-send-email-zohar@linux.vnet.ibm.com Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com> Acked-by: Dmitry Kasatkin <dmitry.kasatkin@gmail.com> Cc: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Andreas Steffen <andreas.steffen@strongswan.org> Cc: Josh Sklar <sklar@linux.vnet.ibm.com> Cc: Dave Young <dyoung@redhat.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Baoquan He <bhe@redhat.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Stewart Smith <stewart@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-20ima: on soft reboot, restore the measurement listMimi Zohar6-0/+255
The TPM PCRs are only reset on a hard reboot. In order to validate a TPM's quote after a soft reboot (eg. kexec -e), the IMA measurement list of the running kernel must be saved and restored on boot. This patch restores the measurement list. Link: http://lkml.kernel.org/r/1480554346-29071-3-git-send-email-zohar@linux.vnet.ibm.com Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com> Acked-by: Dmitry Kasatkin <dmitry.kasatkin@gmail.com> Cc: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Andreas Steffen <andreas.steffen@strongswan.org> Cc: Josh Sklar <sklar@linux.vnet.ibm.com> Cc: Dave Young <dyoung@redhat.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Baoquan He <bhe@redhat.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Stewart Smith <stewart@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-20powerpc: ima: get the kexec buffer passed by the previous kernelThiago Jung Bauermann7-1/+158
Patch series "ima: carry the measurement list across kexec", v8. The TPM PCRs are only reset on a hard reboot. In order to validate a TPM's quote after a soft reboot (eg. kexec -e), the IMA measurement list of the running kernel must be saved and then restored on the subsequent boot, possibly of a different architecture. The existing securityfs binary_runtime_measurements file conveniently provides a serialized format of the IMA measurement list. This patch set serializes the measurement list in this format and restores it. Up to now, the binary_runtime_measurements was defined as architecture native format. The assumption being that userspace could and would handle any architecture conversions. With the ability of carrying the measurement list across kexec, possibly from one architecture to a different one, the per boot architecture information is lost and with it the ability of recalculating the template digest hash. To resolve this problem, without breaking the existing ABI, this patch set introduces the boot command line option "ima_canonical_fmt", which is arbitrarily defined as little endian. The need for this boot command line option will be limited to the existing version 1 format of the binary_runtime_measurements. Subsequent formats will be defined as canonical format (eg. TPM 2.0 support for larger digests). A simplified method of Thiago Bauermann's "kexec buffer handover" patch series for carrying the IMA measurement list across kexec is included in this patch set. The simplified method requires all file measurements be taken prior to executing the kexec load, as subsequent measurements will not be carried across the kexec and restored. This patch (of 10): The IMA kexec buffer allows the currently running kernel to pass the measurement list via a kexec segment to the kernel that will be kexec'd. The second kernel can check whether the previous kernel sent the buffer and retrieve it. This is the architecture-specific part which enables IMA to receive the measurement list passed by the previous kernel. It will be used in the next patch. The change in machine_kexec_64.c is to factor out the logic of removing an FDT memory reservation so that it can be used by remove_ima_buffer. Link: http://lkml.kernel.org/r/1480554346-29071-2-git-send-email-zohar@linux.vnet.ibm.com Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com> Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Andreas Steffen <andreas.steffen@strongswan.org> Cc: Dmitry Kasatkin <dmitry.kasatkin@gmail.com> Cc: Josh Sklar <sklar@linux.vnet.ibm.com> Cc: Dave Young <dyoung@redhat.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Baoquan He <bhe@redhat.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Stewart Smith <stewart@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-20ipv4: Should use consistent conditional judgement for ip fragment in __ip_append_data and ip_finish_outputzheng li1-1/+1
There is an inconsistent conditional judgement in __ip_append_data and ip_finish_output functions, the variable length in __ip_append_data just include the length of application's payload and udp header, don't include the length of ip header, but in ip_finish_output use (skb->len > ip_skb_dst_mtu(skb)) as judgement, and skb->len include the length of ip header. That causes some particular application's udp payload whose length is between (MTU - IP Header) and MTU were fragmented by ip_fragment even though the rst->dev support UFO feature. Add the length of ip header to length in __ip_append_data to keep consistent conditional judgement as ip_finish_output for ip fragment. Signed-off-by: Zheng Li <james.z.li@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-20ath10k: free host-mem with DMA_BIRECTIONAL flagBen Greear1-1/+1
Hopefully this fixes the problem reported by Kalle: Noticed this in my log, but I don't have time to investigate this in detail right now: [ 413.795346] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 414.158755] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 477.439659] ath10k_pci 0000:02:00.0: could not get mac80211 beacon [ 481.666630] ------------[ cut here ]------------ [ 481.666669] WARNING: CPU: 0 PID: 1978 at lib/dma-debug.c:1155 check_unmap+0x320/0x8e0 [ 481.666688] ath10k_pci 0000:02:00.0: DMA-API: device driver frees DMA memory with different direction [device address=0x000000002d130000] [size=63800 bytes] [mapped with DMA_BIDIRECTIONAL] [unmapped with DMA_TO_DEVICE] [ 481.666703] Modules linked in: ctr ccm ath10k_pci(E-) ath10k_core(E) ath(E) mac80211(E) cfg80211(E) snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_seq_midi arc4 snd_rawmidi snd_seq_midi_event snd_seq btusb btintel snd_seq_device joydev coret [ 481.671468] CPU: 0 PID: 1978 Comm: rmmod Tainted: G E 4.9.0-rc7-wt+ #54 [ 481.671478] Hardware name: Hewlett-Packard HP ProBook 6540b/1722, BIOS 68CDD Ver. F.04 01/27/2010 [ 481.671489] ef49dcec c842ee92 c8b5830e ef49dd34 ef49dd20 c80850f5 c8b5a13c ef49dd50 [ 481.671560] 000007ba c8b5830e 00000483 c8461830 c8461830 00000483 ef49ddcc f34e64b8 [ 481.671641] c8b58360 ef49dd3c c80851bb 00000009 00000000 ef49dd34 c8b5a13c ef49dd50 [ 481.671716] Call Trace: [ 481.671731] [<c842ee92>] dump_stack+0x76/0xb4 [ 481.671745] [<c80850f5>] __warn+0xe5/0x100 [ 481.671757] [<c8461830>] ? check_unmap+0x320/0x8e0 [ 481.671769] [<c8461830>] ? check_unmap+0x320/0x8e0 [ 481.671780] [<c80851bb>] warn_slowpath_fmt+0x3b/0x40 [ 481.671791] [<c8461830>] check_unmap+0x320/0x8e0 [ 481.671804] [<c8462054>] debug_dma_unmap_page+0x84/0xa0 [ 481.671835] [<f937cd7a>] ath10k_wmi_free_host_mem+0x9a/0xe0 [ath10k_core] [ 481.671861] [<f9363400>] ath10k_core_destroy+0x50/0x60 [ath10k_core] [ 481.671875] [<f8e13969>] ath10k_pci_remove+0x79/0xa0 [ath10k_pci] [ 481.671889] [<c848d8d8>] pci_device_remove+0x38/0xb0 [ 481.671901] [<c859fe4b>] __device_release_driver+0x7b/0x110 [ 481.671913] [<c85a00e7>] driver_detach+0x97/0xa0 [ 481.671923] [<c859ef8b>] bus_remove_driver+0x4b/0xb0 [ 481.671934] [<c85a0cda>] driver_unregister+0x2a/0x60 [ 481.671949] [<c848c888>] pci_unregister_driver+0x18/0x70 [ 481.671965] [<f8e14dae>] ath10k_pci_exit+0xd/0x25f [ath10k_pci] [ 481.671979] [<c812bb84>] SyS_delete_module+0xf4/0x180 [ 481.671995] [<c81f801b>] ? __might_fault+0x8b/0xa0 [ 481.672009] [<c80037d0>] do_fast_syscall_32+0xa0/0x1e0 [ 481.672025] [<c88d4c88>] sysenter_past_esp+0x45/0x74 [ 481.672037] ---[ end trace 3fd23759e17e1622 ]--- [ 481.672049] Mapped at: [ 481.672060] [ 481.672072] [<c846062c>] debug_dma_map_page.part.25+0x1c/0xf0 [ 481.672083] [ 481.672095] [<c8460799>] debug_dma_map_page+0x99/0xc0 [ 481.672106] [ 481.672132] [<f93745ec>] ath10k_wmi_alloc_chunk+0x12c/0x1f0 [ath10k_core] [ 481.672142] [ 481.672168] [<f937d0c4>] ath10k_wmi_event_service_ready_work+0x304/0x540 [ath10k_core] [ 481.672178] [ 481.672190] [<c80a3643>] process_one_work+0x1c3/0x670 [ 482.137134] ath10k_pci 0000:02:00.0: pci irq msi oper_irq_mode 2 irq_mode 0 reset_mode 0 [ 482.313144] ath10k_pci 0000:02:00.0: Direct firmware load for ath10k/pre-cal-pci-0000:02:00.0.bin failed with error -2 [ 482.313274] ath10k_pci 0000:02:00.0: Direct firmware load for ath10k/cal-pci-0000:02:00.0.bin failed with error -2 [ 482.313768] ath10k_pci 0000:02:00.0: qca988x hw2.0 target 0x4100016c chip_id 0x043202ff sub 0000:0000 [ 482.313777] ath10k_pci 0000:02:00.0: kconfig debug 1 debugfs 1 tracing 1 dfs 0 testmode 1 [ 482.313974] ath10k_pci 0000:02:00.0: firmware ver 10.2.4.70.59-2 api 5 features no-p2p,raw-mode,mfp,allows-mesh-bcast crc32 4159f498 [ 482.369858] ath10k_pci 0000:02:00.0: Direct firmware load for ath10k/QCA988X/hw2.0/board-2.bin failed with error -2 [ 482.370011] ath10k_pci 0000:02:00.0: board_file api 1 bmi_id N/A crc32 bebc7c08 [ 483.596770] ath10k_pci 0000:02:00.0: htt-ver 2.1 wmi-op 5 htt-op 2 cal otp max-sta 128 raw 0 hwcrypto 1 [ 483.701686] ath: EEPROM regdomain: 0x0 [ 483.701706] ath: EEPROM indicates default country code should be used [ 483.701713] ath: doing EEPROM country->regdmn map search [ 483.701721] ath: country maps to regdmn code: 0x3a [ 483.701730] ath: Country alpha2 being used: US [ 483.701737] ath: Regpair used: 0x3a Reported-by: Kalle Valo <kvalo@qca.qualcomm.com> Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-12-20brcmfmac: fix uninitialized field in scheduled scan ssid configurationArend Van Spriel1-0/+1
The scheduled scan ssid configuration in firmware has a flags field that was not initialized resulting in unexpected behaviour. Fixes: e3bdb7cc0300 ("brcmfmac: fix handling ssids in .sched_scan_start() callback") Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com> Reviewed-by: Franky Lin <franky.lin@broadcom.com> Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-12-20brcmfmac: fix memory leak in brcmf_cfg80211_attach()Arend Van Spriel1-2/+5
In brcmf_cfg80211_attach() there was one error path not properly handled as it leaked memory allocated in brcmf_btcoex_attach(). Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com> Reviewed-by: Franky Lin <franky.lin@broadcom.com> Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-12-19stmmac: fix memory barriersPavel Machek3-7/+7
Fix up memory barriers in stmmac driver. They are meant to protect against DMA engine, so smp_ variants are certainly wrong, and dma_ variants are preferable. Signed-off-by: Pavel Machek <pavel@denx.de> Tested-by: Niklas Cassel <niklas.cassel@axis.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-19net: ethernet: cavium: octeon: octeon_mgmt: Handle return NULL error from devm_ioremapArvind Yadav1-0/+6
Here, If devm_ioremap will fail. It will return NULL. Kernel can run into a NULL-pointer dereference. This error check will avoid NULL pointer dereference. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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