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2013-08-22s390: convert interrupt handling to use generic hardirqMartin Schwidefsky3-28/+42
With the introduction of PCI it became apparent that s390 should convert to generic hardirqs as too many drivers do not have the correct dependency for GENERIC_HARDIRQS. On the architecture level s390 does not have irq lines. It has external interrupts, I/O interrupts and adapter interrupts. This patch hard-codes all external interrupts as irq #1, all I/O interrupts as irq #2 and all adapter interrupts as irq #3. The additional information from the lowcore associated with the interrupt is stored in the pt_regs of the interrupt frame, where the interrupt handler can pick it up. For PCI/MSI interrupts the adapter interrupt handler scans the relevant bit fields and calls generic_handle_irq with the virtual irq number for the MSI interrupt. Reviewed-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-08-22s390/airq: introduce adapter interrupt vector helperMartin Schwidefsky1-0/+153
The PCI code is the first user of adapter interrupts vectors. Add a set of helpers to airq.c to separate the adatper interrupt code from the PCI bits. The helpers allow for adapter interrupt vectors of any size. Reviewed-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-08-22s390/dasd: cleanup timeout and transport error messagesStefan Weinhuber1-2/+4
Just a small update to the wording of the messages, to bring them more in line with our other messages. Signed-off-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-08-22s390: replace strict_strtoul() with kstrtoul()Jingoo Han6-9/+9
The usage of strict_strtoul() is not preferred, because strict_strtoul() is obsolete. Thus, kstrtoul() should be used. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-08-19Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds5-36/+80
Pull drm fixes from Dave Airlie: "Bit late with these, was under the weather for a a few days, nothing too crazy: Some radeon regression fixes, one intel regression fix, and one fix to avoid a warn with i915 when used with dma-buf" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/i915: unpin backing storage in dmabuf_unmap drm/radeon: fix WREG32_OR macro setting bits in a register drm/radeon/r7xx: fix copy paste typo in golden register setup drm/i915: Don't deref pipe->cpu_transcoder in the hangcheck code drm/radeon: fix UVD message buffer validation
2013-08-19Merge tag 'drm-intel-fixes-2013-08-15' of ↵Dave Airlie43-302/+472
git://people.freedesktop.org/~danvet/drm-intel * tag 'drm-intel-fixes-2013-08-15' of git://people.freedesktop.org/~danvet/drm-intel: (153 commits) drm/i915: Don't deref pipe->cpu_transcoder in the hangcheck code
2013-08-19drm/i915: unpin backing storage in dmabuf_unmapDaniel Vetter1-0/+8
This fixes a WARN in i915_gem_free_object when the obj->pages_pin_count isn't 0. v2: Add locking to unmap, noticed by Chris Wilson. Note that even though we call unmap with our own dev->struct_mutex held that won't result in an immediate deadlock since we never go through the dma_buf interfaces for our own, reimported buffers. But it's still easy to blow up and anger lockdep, but that's already the case with our ->map implementation. Fixing this for real will involve per dma-buf ww mutex locking by the callers. And lots of fun. So go with the duct-tape approach for now. Cc: Chris Wilson <chris@chris-wilson.co.uk> Reported-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com> Tested-by: Armin K. <krejzi@email.com> (v1) Tested-by: Dave Airlie <airlied@redhat.com> Acked-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-08-16Merge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linuxLinus Torvalds2-35/+42
Pull clock controller fixes from Michael Turquette: "Two small fixes for the Zynq clock controller introduced in 3.11-rc1 and another Exynos clock patch which fixes a regression that prevents the video pipeline from functioning on that platform" * tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux: clk: exynos4: Add CLK_GET_RATE_NOCACHE flag for the Exynos4x12 ISP clocks clk/zynq/clkc: Add CLK_SET_RATE_PARENT flag to ethernet muxes clk/zynq/clkc: Add dedicated spinlock for the SWDT
2013-08-16Merge tag 'usb-3.11-rc6' of ↵Linus Torvalds10-37/+55
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are some small USB fixes for 3.11-rc6 that have accumulated. Nothing huge, a EHCI fix that solves a much-reported audio USB problem, some usb-serial driver endian fixes and other minor fixes, a wireless USB oops fix, and two new quirks" * tag 'usb-3.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: USB: keyspan: fix null-deref at disconnect and release USB: mos7720: fix broken control requests usb: add two quirky touchscreen USB: ti_usb_3410_5052: fix big-endian firmware handling USB: adutux: fix big-endian device-type reporting USB: usbtmc: fix big-endian probe of Rigol devices USB: mos7840: fix big-endian probe USB-Serial: Fix error handling of usb_wwan wusbcore: fix kernel panic when disconnecting a wireless USB->serial device USB: EHCI: accept very late isochronous URBs
2013-08-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds34-245/+381
Pull networking fixes from David Miller: 1) Fix SKB leak in 8139cp, from Dave Jones. 2) Fix use of *_PAGES interfaces with mlx5 firmware, from Moshe Lazar. 3) RCU conversion of macvtap introduced two races, fixes by Eric Dumazet 4) Synchronize statistic flows in bnx2x driver to prevent corruption, from Dmitry Kravkov 5) Undo optimization in IP tunneling, we were using the inner IP header in some cases to inherit the IP ID, but that isn't correct in some circumstances. From Pravin B Shelar 6) Use correct struct size when parsing netlink attributes in rtnl_bridge_getlink(). From Asbjoern Sloth Toennesen 7) Length verifications in tun_get_user() are bogus, from Weiping Pan and Dan Carpenter 8) Fix bad merge resolution during 3.11 networking development in openvswitch, albeit a harmless one which added some unreachable code. From Jesse Gross 9) Wrong size used in flexible array allocation in openvswitch, from Pravin B Shelar 10) Clear out firmware capability flags the be2net driver isn't ready to handle yet, from Sarveshwar Bandi 11) Revert DMA mapping error checking addition to cxgb3 driver, it's buggy. From Alexey Kardashevskiy 12) Fix regression in packet scheduler rate limiting when working with a link layer of ATM. From Jesper Dangaard Brouer 13) Fix several errors in TCP Cubic congestion control, in particular overflow errors in timestamp calculations. From Eric Dumazet and Van Jacobson 14) In ipv6 routing lookups, we need to backtrack if subtree traversal don't result in a match. From Hannes Frederic Sowa 15) ipgre_header() returns incorrect packet offset. Fix from Timo Teräs 16) Get "low latency" out of the new MIB counter names. From Eliezer Tamir 17) State check in ndo_dflt_fdb_del() is inverted, from Sridhar Samudrala 18) Handle TCP Fast Open properly in netfilter conntrack, from Yuchung Cheng 19) Wrong memcpy length in pcan_usb driver, from Stephane Grosjean 20) Fix dealock in TIPC, from Wang Weidong and Ding Tianhong 21) call_rcu() call to destroy SCTP transport is done too early and might result in an oops. From Daniel Borkmann 22) Fix races in genetlink family dumps, from Johannes Berg 23) Flags passed into macvlan by the user need to be validated properly, from Michael S Tsirkin 24) Fix skge build on 32-bit, from Stephen Hemminger 25) Handle malformed TCP headers properly in xt_TCPMSS, from Pablo Neira Ayuso 26) Fix handling of stacked vlans in vlan_dev_real_dev(), from Nikolay Aleksandrov 27) Eliminate MTU calculation overflows in esp{4,6}, from Daniel Borkmann 28) neigh_parms need to be setup before calling the ->ndo_neigh_setup() method. From Veaceslav Falico 29) Kill out-of-bounds prefetch in fib_trie, from Eric Dumazet 30) Don't dereference MLD query message if the length isn't value in the bridge multicast code, from Linus Lüssing 31) Fix VXLAN IGMP join regression due to an inverted check, from Cong Wang * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (70 commits) net/mlx5_core: Support MANAGE_PAGES and QUERY_PAGES firmware command changes tun: signedness bug in tun_get_user() qlcnic: Fix diagnostic interrupt test for 83xx adapters qlcnic: Fix beacon state return status handling qlcnic: Fix set driver version command net: tg3: fix NULL pointer dereference in tg3_io_error_detected and tg3_io_slot_reset net_sched: restore "linklayer atm" handling drivers/net/ethernet/via/via-velocity.c: update napi implementation Revert "cxgb3: Check and handle the dma mapping errors" be2net: Clear any capability flags that driver is not interested in. openvswitch: Reset tunnel key between input and output. openvswitch: Use correct type while allocating flex array. openvswitch: Fix bad merge resolution. tun: compare with 0 instead of total_len rtnetlink: rtnl_bridge_getlink: Call nlmsg_find_attr() with ifinfomsg header ethernet/arc/arc_emac - fix NAPI "work > weight" warning ip_tunnel: Do not use inner ip-header-id for tunnel ip-header-id. bnx2x: prevent crash in shutdown flow with CNIC bnx2x: fix PTE write access error bnx2x: fix memory leak in VF ...
2013-08-15net/mlx5_core: Support MANAGE_PAGES and QUERY_PAGES firmware command changesMoshe Lazer4-35/+29
In the previous QUERY_PAGES command version we used one command to get the required amount of boot, init and post init pages. The new version uses the op_mod field to specify whether the query is for the required amount of boot, init or post init pages. In addition the output field size for the required amount of pages increased from 16 to 32 bits. In MANAGE_PAGES command the input_num_entries and output_num_entries fields sizes changed from 16 to 32 bits and the PAS tables offset changed to 0x10. In the pages request event the num_pages field also changed to 32 bits. In the HCA-capabilities-layout the size and location of max_qp_mcg field has been changed to support 24 bits. This patch isn't compatible with firmware versions < 5; however, it turns out that the first GA firmware we will publish will not support previous versions so this should be OK. Signed-off-by: Moshe Lazer <moshel@mellanox.com> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-15tun: signedness bug in tun_get_user()Dan Carpenter1-2/+4
The recent fix d9bf5f1309 "tun: compare with 0 instead of total_len" is not totally correct. Because "len" and "sizeof()" are size_t type, that means they are never less than zero. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-15qlcnic: Fix diagnostic interrupt test for 83xx adaptersManish Chopra1-0/+5
o Do not allow interrupt test when adapter is resetting. Signed-off-by: Manish Chopra <manish.chopra@qlogic.com> Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-15qlcnic: Fix beacon state return status handlingSucheta Chakraborty1-3/+3
o Driver was misinterpreting the return status for beacon state query leading to incorrect interpretation of beacon state and logging an error message for successful status. Fixed the driver to properly interpret the return status. Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-15qlcnic: Fix set driver version commandHimanshu Madhani2-3/+6
Driver was issuing set driver version command through all functions in the adapter. Fix the driver to issue set driver version once per adapter, through function 0. Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-15net: tg3: fix NULL pointer dereference in tg3_io_error_detected and ↵Daniel Borkmann1-5/+8
tg3_io_slot_reset Commit d8af4dfd8 ("net/tg3: Fix kernel crash") introduced a possible NULL pointer dereference in tg3 driver when !netdev || !netif_running(netdev) condition is met and netdev is NULL. Then, the jump to the 'done' label calls dev_close() with a netdevice that is NULL. Therefore, only call dev_close() when we have a netdevice, but one that is not running. [ Add the same checks in tg3_io_slot_reset() per Gavin Shan - by Nithin Nayak Sujir ] Reported-by: Dave Jones <davej@redhat.com> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Cc: Gavin Shan <shangw@linux.vnet.ibm.com> Cc: Michael Chan <mchan@broadcom.com> Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com> Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-15drm/radeon: fix WREG32_OR macro setting bits in a registerRafał Miłecki1-1/+1
This bug (introduced in 3.10) in WREG32_OR made commit d3418eacad403033e95e49dc14afa37c2112c134 "drm/radeon/evergreen: setup HDMI before enabling it" cause a regression. Sometimes audio over HDMI wasn't working, sometimes display was corrupted. This fixes: https://bugzilla.kernel.org/show_bug.cgi?id=60687 https://bugzilla.kernel.org/show_bug.cgi?id=60709 https://bugs.freedesktop.org/show_bug.cgi?id=67767 Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-08-15drivers/net/ethernet/via/via-velocity.c: update napi implementationJulia Lawall1-1/+3
Drivers supporting NAPI should use a NAPI-specific function for receiving packets. Hence netif_rx is changed to netif_receive_skb. Furthermore netif_napi_del should be used in the probe and remove function to clean up the NAPI resource information. Thanks to Francois Romieu, David Shwatrz and Rami Rosen for their help on this patch. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-15Revert "cxgb3: Check and handle the dma mapping errors"Alexey Kardashevskiy1-83/+24
This reverts commit f83331bab149e29fa2c49cf102c0cd8c3f1ce9f9. As the tests PPC64 (powernv platform) show, IOMMU pages are leaking when transferring big amount of small packets (<=64 bytes), "ping -f" and waiting for 15 seconds is the simplest way to confirm the bug. Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Santosh Rastapur <santosh@chelsio.com> Cc: Jay Fenlason <fenlason@redhat.com> Cc: David S. Miller <davem@davemloft.net> Cc: Divy Le ray <divy@chelsio.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Acked-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-15be2net: Clear any capability flags that driver is not interested in.Sarveshwar Bandi2-0/+9
It is possible for some versions of firmware to advertise capabilities that driver is not ready to handle. This may lead to controller stall. Since the driver is interested only in subset of flags, clearing the rest. Signed-off-by: Sarveshwar Bandi <sarveshwar.bandi@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-14drm/radeon/r7xx: fix copy paste typo in golden register setupAlex Deucher1-6/+6
Uses the wrong array size for some asics which can lead to garbage getting written to registers. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=60674 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2013-08-14USB: keyspan: fix null-deref at disconnect and releaseJohan Hovold1-1/+1
Make sure to fail properly if the device is not accepted during attach in order to avoid null-pointer derefs (of missing interface private data) at disconnect or release. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-14USB: mos7720: fix broken control requestsJohan Hovold1-7/+14
The parallel-port code of the drivers used a stack allocated control-request buffer for asynchronous (and possibly deferred) control requests. This not only violates the no-DMA-from-stack requirement but could also lead to corrupt control requests being submitted. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-14usb: add two quirky touchscreenOliver Neukum1-0/+6
These devices tend to become unresponsive after S3 Signed-off-by: Oliver Neukum <oneukum@suse.de> CC: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-14drm/i915: Don't deref pipe->cpu_transcoder in the hangcheck codeChris Wilson1-29/+57
If we get an error event really early in the driver setup sequence, which gen3 is especially prone to with various display GTT faults we Oops. So try to avoid this. Additionally with Haswell the transcoders are a separate bank of registers from the pipes (4 transcoders, 3 pipes). In event of an error, we want to be sure we have a complete and accurate picture of the machine state, so record all the transcoders in addition to all the active pipes. This regression has been introduced in commit 702e7a56af3780d8b3a717f698209bef44187bb0 Author: Paulo Zanoni <paulo.r.zanoni@intel.com> Date: Tue Oct 23 18:29:59 2012 -0200 drm/i915: convert PIPECONF to use transcoder instead of pipe Based on the patch "drm/i915: Dump all transcoder registers on error" from Chris Wilson: v2: Rebase so that we don't try to be clever and try to figure out the cpu transcoder from hw state. That exercise should be done when we analyze the error state offline. The actual bugfix is to not call intel_pipe_to_cpu_transcoder in the error state capture code in case the pipes aren't fully set up yet. v3: Simplifiy the err->num_transcoders computation a bit. While at it make the error capture stuff save on systems without a display block. v4: Fix fail, spotted by Jani. v5: Completely new commit message, cc: stable. Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: Damien Lespiau <damien.lespiau@intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=60021 Cc: stable@vger.kernel.org Tested-by: Dustin King <daking@rescomp.stanford.edu> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-08-13tun: compare with 0 instead of total_lenWeiping Pan1-2/+2
Since we set "len = total_len" in the beginning of tun_get_user(), so we should compare the new len with 0, instead of total_len, or the if statement always returns false. Signed-off-by: Weiping Pan <wpan@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-13drivers/rtc/rtc-stmp3xxx.c: provide timeout for potentially endless loop ↵Lothar Waßmann1-10/+25
polling a HW bit It's always a bad idea to poll on HW bits without a timeout. The i.MX28 RTC can be easily brought into a state in which the RTC is not running (until after a power-on-reset) and thus the status bits which are polled in the driver won't ever change. This patch prevents the kernel from getting stuck in this case. Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de> Acked-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-08-13aoe: adjust ref of head for compound page tailsEd Cashin1-10/+7
Fix a BUG which can trigger when direct-IO is used with AOE. As discussed previously, the fact that some users of the block layer provide bios that point to pages with a zero _count means that it is not OK for the network layer to do a put_page on the skb frags during an skb_linearize, so the aoe driver gets a reference to pages in bios and puts the reference before ending the bio. And because it cannot use get_page on a page with a zero _count, it manipulates the value directly. It is not OK to increment the _count of a compound page tail, though, since the VM layer will VM_BUG_ON a non-zero _count. Block users that do direct I/O can result in the aoe driver seeing compound page tails in bios. In that case, the same logic works as long as the head of the compound page is used instead of the tails. This patch handles compound pages and does not BUG. It relies on the block layer user leaving the relationship between the page tail and its head alone for the duration between the submission of the bio and its completion, whether successful or not. Signed-off-by: Ed Cashin <ecashin@coraid.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-08-13ethernet/arc/arc_emac - fix NAPI "work > weight" warningAlexey Brodkin1-1/+1
Initially I improperly set a boundary for maximum number of input packets to process on NAPI poll ("work") so it might be more than expected amount ("weight"). This was really harmless but seeing WARN_ON_ONCE on every device boot is not nice. So trivial fix ("<" instead of "<=") is here. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Mischa Jonker <mjonker@synopsys.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Grant Likely <grant.likely@linaro.org> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: linux-kernel@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-13bnx2x: prevent crash in shutdown flow with CNICYuval Mintz1-2/+1
There might be a crash as during shutdown flow CNIC might try to access resources already freed by bnx2x. Change bnx2x_close() into dev_close() in __bnx2x_remove (shutdown flow) to guarantee CNIC is notified of the device's change of status. Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-13bnx2x: fix PTE write access errorBarak Witkowsky3-0/+15
PTE write access error might occur in MF_ALLOWED mode when IOMMU is active. The patch adds rmmod HSI indicating to MFW to stop running queries which might trigger this failure. Signed-off-by: Barak Witkowsky <barak@broadcom.com> Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-13bnx2x: fix memory leak in VFAriel Elior1-1/+1
Signed-off-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-13bnx2x: update fairness parameters following DCB negotiationDmitry Kravkov3-12/+24
ETS can be enabled as a result of DCB negotiation, then fairness must be recalculated after each negotiation. Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-13bnx2x: protect different statistics flowsDmitry Kravkov3-12/+57
Add locking to protect different statistics flows from running simultaneously. This in order to serialize statistics requests sent to FW, otherwise two outstanding queries may cause FW assert. Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Acked-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-13skge: dma_sync the whole receive bufferstephen hemminger1-2/+4
The DMA sync should sync the whole receive buffer, not just part of it. Fixes log messages dma_sync_check. Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-13clk: exynos4: Add CLK_GET_RATE_NOCACHE flag for the Exynos4x12 ISP clocksSylwester Nawrocki1-30/+34
The ISP clock registers belong to the ISP power domain and may change their values if this power domain is switched off/on. Add CLK_GET_RATE_NOCACHE flags to ensure we do not rely on invalid cached data when setting or getting frequency of those clocks. Without this fix the FIMC-IS Cortex-A5 core and AXI bus clocks have incorrect frequencies, which breaks the ISP operation and starting the video pipeline fails with timeouts reported by the FIMC-IS firmware. See related commit 722a860ecb29aa34ec6f7d7f32b949209e8 "[media] exynos4-is: Fix FIMC-IS clocks initialization" for more details. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-08-13clk/zynq/clkc: Add CLK_SET_RATE_PARENT flag to ethernet muxesSoren Brinkmann1-4/+6
Zynq's Ethernet clocks are created by the following hierarchy: mux0 ---> div0 ---> div1 ---> mux1 ---> gate Rate change requests on the gate have to propagate all the way up to div0 to properly leverage all dividers. Mux1 was missing the CLK_SET_RATE_PARENT flag, which is required to achieve this. This does not fix a specific regression but the clock driver was merged for 3.11-rc1, so best to fix the known bugs before the release. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Mike Turquette <mturquette@linaro.org> [mturquette@linaro.org: added to changelog]
2013-08-13clk/zynq/clkc: Add dedicated spinlock for the SWDTSoren Brinkmann1-1/+2
The clk_mux for the system watchdog timer reused the register lock dedicated to the Ethernet module - for no apparent reason. Add a lock dedicated to the SWDT's clock register to remove this wrong dependency. This does not fix a specific regression but the clock driver was merged for 3.11-rc1, so best to fix the known bugs before the release. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Mike Turquette <mturquette@linaro.org> [mturquette@linaro.org: added to changelog]
2013-08-12stmmac: fix init_dma_desc_rings() to handle errorsBartlomiej Zolnierkiewicz1-19/+92
In stmmac_init_rx_buffers(): * add missing handling of dma_map_single() error * remove superfluous unlikely() optimization while at it Add stmmac_free_rx_buffers() helper and use it in dma_free_rx_skbufs(). In init_dma_desc_rings(): * add missing handling of kmalloc_array() errors * fix handling of dma_alloc_coherent() and stmmac_init_rx_buffers() errors * make function return an error value on error and 0 on success In stmmac_open(): * add handling of init_dma_desc_rings() return value Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-12USB: ti_usb_3410_5052: fix big-endian firmware handlingJohan Hovold1-4/+5
Fix endianess bugs in firmware handling introduced by commits cb7a7c6a ("ti_usb_3410_5052: add Multi-Tech modem support") and 05a3d905 ("ti_usb_3410_5052: support alternate firmware") which made the driver use the wrong firmware for certain devices on big-endian machines. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-12USB: adutux: fix big-endian device-type reportingJohan Hovold1-1/+1
Make sure the reported device-type on big-endian machines is the same as on little-endian ones. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-12USB: usbtmc: fix big-endian probe of Rigol devicesJohan Hovold1-4/+4
Fix probe of Rigol devices on big-endian machines. A quirk for these devices was introduced by commit c2e314835 ("USB: usbtmc: Set rigol_quirk if device is listed") but was only enabled on little-endian machines. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-12USB: mos7840: fix big-endian probeJohan Hovold1-1/+1
Fix bug in device-type detection on big-endian machines originally introduced by commit 0eafe4de ("USB: serial: mos7840: add support for MCS7810 devices") which always matched on little-endian product ids. Reported-by: kbuild test robot <fengguang.wu@intel.com> Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-12USB-Serial: Fix error handling of usb_wwanMatt Burtch1-10/+10
This fixes an issue where the bulk-in urb used for incoming data transfer is not resubmitted if the packet recieved contains an error status. This results in the driver locking until the port is closed and re-opened. Tested on a custom board with a Cinterion GSM module. Signed-off-by: Matt Burtch <matt@grid-net.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-12wusbcore: fix kernel panic when disconnecting a wireless USB->serial deviceThomas Pugliese1-2/+7
This patch fixes a kernel panic that can occur when disconnecting a wireless USB->serial device. When the serial device disconnects, the device cleanup procedure ends up calling usb_hcd_disable_endpoint on the serial device's endpoints. The wusbcore uses the ABORT_RPIPE command to abort all transfers on the given endpoint but it does not properly give back the URBs when the transfer results return from the HWA. This patch prevents the transfer result processing code from bailing out when it sees a WA_XFER_STATUS_ABORTED result code so that these urbs are flushed properly by usb_hcd_disable_endpoint. It also updates wa_urb_dequeue to handle the case where the endpoint has already been cleaned up when usb_kill_urb is called which is where the panic originally occurred. Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-12USB: EHCI: accept very late isochronous URBsAlan Stern1-7/+6
Since commits 4005ad4390bf (EHCI: implement new semantics for URB_ISO_ASAP) and c75c5ab575af (ALSA: USB: adjust for changed 3.8 USB API) became widely distributed, people have been experiencing problems with audio transfers. The slightest underrun causes complete failure, requiring the audio stream to be restarted. It turns out that the current isochronous API doesn't handle underruns in the best way. The ALSA developers would much rather have transfers that are submitted too late be accepted and complete in the normal fashion, rather than being refused outright. This patch implements the requested approach. When an isochronous URB submission is so late that all its scheduled slots have already expired, a debugging message will be printed in the log and the URB will be accepted as usual. Assuming it was submitted by a completion handler (which is normally the case), it will complete shortly thereafter with all the usb_iso_packet_descriptor status fields marked -EXDEV. This fixes (for ehci-hcd) https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1191603 It should be applied to all kernels that include commit 4005ad4390bf. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Tested-by: Maksim Boyko <maksboyko@yandex.ru> CC: Clemens Ladisch <clemens@ladisch.de> CC: <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-12drm/radeon: fix UVD message buffer validationChristian König1-0/+8
When the message buffer is currently moving block until it is idle again. Signed-off-by: Christian König <christian.koenig@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-08-11can: pcan_usb: fix wrong memcpy() bytes lengthStephane Grosjean1-1/+1
Fix possibly wrong memcpy() bytes length since some CAN records received from PCAN-USB could define a DLC field in range [9..15]. In that case, the real DLC value MUST be used to move forward the record pointer but, only 8 bytes max. MUST be copied into the data field of the struct can_frame object of the skb given to the network core. Cc: linux-stable <stable@vger.kernel.org> Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-11macvtap: fix two racesEric Dumazet1-3/+9
Since commit ac4e4af1e59e1 ("macvtap: Consistently use rcu functions"), Thomas gets two different warnings : BUG: using smp_processor_id() in preemptible [00000000] code: vhost-45891/45892 caller is macvtap_do_read+0x45c/0x600 [macvtap] CPU: 1 PID: 45892 Comm: vhost-45891 Not tainted 3.11.0-bisecttest #13 Call Trace: ([<00000000001126ee>] show_trace+0x126/0x144) [<00000000001127d2>] show_stack+0xc6/0xd4 [<000000000068bcec>] dump_stack+0x74/0xd8 [<0000000000481066>] debug_smp_processor_id+0xf6/0x114 [<000003ff802e9a18>] macvtap_do_read+0x45c/0x600 [macvtap] [<000003ff802e9c1c>] macvtap_recvmsg+0x60/0x88 [macvtap] [<000003ff80318c5e>] handle_rx+0x5b2/0x800 [vhost_net] [<000003ff8028f77c>] vhost_worker+0x15c/0x1c4 [vhost] [<000000000015f3ac>] kthread+0xd8/0xe4 [<00000000006934a6>] kernel_thread_starter+0x6/0xc [<00000000006934a0>] kernel_thread_starter+0x0/0xc And BUG: using smp_processor_id() in preemptible [00000000] code: vhost-45897/45898 caller is macvlan_start_xmit+0x10a/0x1b4 [macvlan] CPU: 1 PID: 45898 Comm: vhost-45897 Not tainted 3.11.0-bisecttest #16 Call Trace: ([<00000000001126ee>] show_trace+0x126/0x144) [<00000000001127d2>] show_stack+0xc6/0xd4 [<000000000068bdb8>] dump_stack+0x74/0xd4 [<0000000000481132>] debug_smp_processor_id+0xf6/0x114 [<000003ff802b72ca>] macvlan_start_xmit+0x10a/0x1b4 [macvlan] [<000003ff802ea69a>] macvtap_get_user+0x982/0xbc4 [macvtap] [<000003ff802ea92a>] macvtap_sendmsg+0x4e/0x60 [macvtap] [<000003ff8031947c>] handle_tx+0x494/0x5ec [vhost_net] [<000003ff8028f77c>] vhost_worker+0x15c/0x1c4 [vhost] [<000000000015f3ac>] kthread+0xd8/0xe4 [<000000000069356e>] kernel_thread_starter+0x6/0xc [<0000000000693568>] kernel_thread_starter+0x0/0xc 2 locks held by vhost-45897/45898: #0: (&vq->mutex){+.+.+.}, at: [<000003ff8031903c>] handle_tx+0x54/0x5ec [vhost_net] #1: (rcu_read_lock){.+.+..}, at: [<000003ff802ea53c>] macvtap_get_user+0x824/0xbc4 [macvtap] In the first case, macvtap_put_user() calls macvlan_count_rx() in a preempt-able context, and this is not allowed. In the second case, macvtap_get_user() calls macvlan_start_xmit() with BH enabled, and this is not allowed. Reported-by: Thomas Huth <thuth@linux.vnet.ibm.com> Bisected-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Tested-by: Thomas Huth <thuth@linux.vnet.ibm.com> Cc: Vlad Yasevich <vyasevic@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-11Merge tag 'scsi-fixes' of ↵Linus Torvalds4-19/+28
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "This is three bug fixes: An fnic warning caused by sleeping under a lock, a major regression with our updated WRITE SAME/UNMAP logic which caused tons of USB devices (and one RAID card) to cease to function and a megaraid_sas firmware initialisation problem which causes kdump failures" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: [SCSI] Don't attempt to send extended INQUIRY command if skip_vpd_pages is set [SCSI] fnic: BUG: sleeping function called from invalid context during probe [SCSI] megaraid_sas: megaraid_sas driver init fails in kdump kernel
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