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2012-09-14ARM: ep93xx: move platform_data definitionsArnd Bergmann
Platform data for device drivers should be defined in include/linux/platform_data/*.h, not in the architecture and platform specific directories. This moves such data out of the ep93xx include directories Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Ryan Mallon <rmallon@gmail.com> Acked-by: Vinod Koul <vinod.koul@linux.intel.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Jeff Garzik <jgarzik@pobox.com> Cc: Dan Williams <djbw@fb.com> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Liam Girdwood <lrg@ti.com> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.de> Cc: Mika Westerberg <mika.westerberg@iki.fi> Cc: Axel Lin <axel.lin@gmail.com>
2012-09-14ARM: davinci: move platform_data definitionsArnd Bergmann
Platform data for device drivers should be defined in include/linux/platform_data/*.h, not in the architecture and platform specific directories. This moves such data out of the davinci include directories Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Acked-by: Felipe Balbi <balbi@ti.com> Cc: Sekhar Nori <nsekhar@ti.com> Cc: Kevin Hilman <khilman@ti.com> Cc: "Ben Dooks" <ben-linux@fluff.org> Cc: "Wolfram Sang" <w.sang@pengutronix.de> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Chris Ball <cjb@laptop.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Liam Girdwood <lrg@ti.com> Cc: davinci-linux-open-source@linux.davincidsp.com
2012-09-14ARM: at91: move platform_data definitionsArnd Bergmann
Platform data for device drivers should be defined in include/linux/platform_data/*.h, not in the architecture and platform specific directories. This moves such data out of the at91 include directories Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Vinod Koul <vinod.koul@linux.intel.com> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Dan Williams <djbw@fb.com>
2012-08-22Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm fixes from Dave Airlie: "Intel: edid fixes, power consumption fix, s/r fix, haswell fix Radeon: BIOS loading fixes for UEFI and Thunderbolt machines, better MSAA validation, lockup timeout fixes, modesetting fixes One udl dpms fix, one vmwgfx fix, a couple of trivial core changes. There is an export added to ACPI as part of the radeon bios fixes. I've also included the fbcon flashing cursor vs deinit race fix, that seems the simplest place to start" Trivial conflict in drivers/video/console/fbcon.c due to me having already applied the fbcon flashing cursor vs deinit race fix, and Dave had added a comment in there too. * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (22 commits) fbcon: fix race condition between console lock and cursor timer (v1.1) drm: Add missing static storage class specifiers in drm_proc.c file drm/udl: dpms off the crtc when disabled. drm: Remove two unused fields from struct drm_display_mode drm: stop vmgfx driver explosion drm/radeon/ss: use num_crtc rather than hardcoded 6 Revert "drm/radeon: fix bo creation retry path" drm/i915: use hsw rps tuning values everywhere on gen6+ drm/radeon: split ATRM support out from the ATPX handler (v3) drm/radeon: convert radeon vfct code to use acpi_get_table_with_size ACPI: export symbol acpi_get_table_with_size drm/radeon: implement ACPI VFCT vbios fetch (v3) drm/radeon/kms: extend the Fujitsu D3003-S2 board connector quirk to cover later silicon stepping drm/radeon: fix checking of MSAA renderbuffers on r600-r700 drm/radeon: allow CMASK and FMASK in the CS checker on r600-r700 drm/radeon: init lockup timeout on ring init drm/radeon: avoid turning off spread spectrum for used pll drm/i915: fall back to bit-banging if GMBUS fails in CRT EDID reads drm/i915: extract connector update from intel_ddc_get_modes() for reuse drm/i915: fix hsw uncached pte ...
2012-08-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pendingLinus Torvalds
Pull SCSI target fixes from Nicholas Bellinger: "The executive summary includes: - Post-merge review comments for tcm_vhost (MST + nab) - Avoid debugging overhead when not debugging for tcm-fc(FCoE) (MDR) - Fix NULL pointer dereference bug on alloc_page failulre (Yi Zou) - Fix REPORT_LUNs regression bug with pSCSI export (AlexE + nab) - Fix regression bug with handling of zero-length data CDBs (nab) - Fix vhost_scsi_target structure alignment (MST) Thanks again to everyone who contributed a bugfix patch, gave review feedback on tcm_vhost code, and/or reported a bug during their own testing over the last weeks. There is one other outstanding bug reported by Roland recently related to SCSI transfer length overflow handling, for which the current proposed bugfix has been left in queue pending further testing with other non iscsi-target based fabric drivers. As the patch is verified with loopback (local SGL memory from SCSI LLD) + tcm_qla2xxx (TCM allocated SGL memory mapped to PCI HW) fabric ports, it will be included into the next 3.6-rc-fixes PULL request." * git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: target: Remove unused se_cmd.cmd_spdtl tcm_fc: rcu_deref outside rcu lock/unlock section tcm_vhost: Fix vhost_scsi_target structure alignment target: Fix regression bug with handling of zero-length data CDBs target/pscsi: Fix bug with REPORT_LUNs handling for SCSI passthrough tcm_vhost: Change vhost_scsi_target->vhost_wwpn to char * target: fix NULL pointer dereference bug alloc_page() fails to get memory tcm_fc: Avoid debug overhead when not debugging tcm_vhost: Post-merge review changes requested by MST tcm_vhost: Fix incorrect IS_ERR() usage in vhost_scsi_map_iov_to_sgl
2012-08-22Merge tag 'nfs-for-3.6-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds
Pull NFS client bugfixes from Trond Myklebust: - NFSv3 mounts need to fail if the FSINFO rpc call fails - Ensure that the NFS commit cache gets torn down when we unload the NFS module. - Fix memory scribble issues when interrupting a LAYOUTGET rpc call - Fix NFSv4 legacy idmapper regressions - Fix issues with the NFSv4 getacl command - Fix a regression when using the legacy "mount -t nfs4" * tag 'nfs-for-3.6-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: NFSv3: Ensure that do_proc_get_root() reports errors correctly NFSv4: Ensure that nfs4_alloc_client cleans up on error. NFS: return -ENOKEY when the upcall fails to map the name NFS: Clear key construction data if the idmap upcall fails NFSv4: Don't use private xdr_stream fields in decode_getacl NFSv4: Fix the acl cache size calculation NFSv4: Fix pointer arithmetic in decode_getacl NFS: Alias the nfs module to nfs4 NFS: Fix a regression when loading the NFS v4 module NFSv4.1: Remove a bogus BUG_ON() in nfs4_layoutreturn_done pnfs-obj: Better IO pattern in case of unaligned offset NFS41: add pg_layout_private to nfs_pageio_descriptor pnfs: nfs4_proc_layoutget returns void pnfs: defer release of pages in layoutget nfs: tear down caches in nfs_init_writepagecache when allocation fails
2012-08-22Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull assorted fixes - mostly vfs - from Al Viro: "Assorted fixes, with an unexpected detour into vfio refcounting logics (fell out when digging in an analog of eventpoll race in there)." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: task_work: add a scheduling point in task_work_run() fs: fix fs/namei.c kernel-doc warnings eventpoll: use-after-possible-free in epoll_create1() vfio: grab vfio_device reference *before* exposing the sucker via fd_install() vfio: get rid of vfio_device_put()/vfio_group_get_device* races vfio: get rid of open-coding kref_put_mutex introduce kref_put_mutex() vfio: don't dereference after kfree... mqueue: lift mnt_want_write() outside ->i_mutex, clean up a bit
2012-08-22introduce kref_put_mutex()Al Viro
equivalent of mutex_lock(mutex); if (!kref_put(kref, release)) mutex_unlock(mutex); Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-08-21Merge branch 'akpm' (Andrew's patch-bomb)Linus Torvalds
Merge fixes from Andrew Morton. Random drivers and some VM fixes. * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (17 commits) mm: compaction: Abort async compaction if locks are contended or taking too long mm: have order > 0 compaction start near a pageblock with free pages rapidio/tsi721: fix unused variable compiler warning rapidio/tsi721: fix inbound doorbell interrupt handling drivers/rtc/rtc-rs5c348.c: fix hour decoding in 12-hour mode mm: correct page->pfmemalloc to fix deactivate_slab regression drivers/rtc/rtc-pcf2123.c: initialize dynamic sysfs attributes mm/compaction.c: fix deferring compaction mistake drivers/misc/sgi-xp/xpc_uv.c: SGI XPC fails to load when cpu 0 is out of IRQ resources string: do not export memweight() to userspace hugetlb: update hugetlbpage.txt checkpatch: add control statement test to SINGLE_STATEMENT_DO_WHILE_MACRO mm: hugetlbfs: correctly populate shared pmd cciss: fix incorrect scsi status reporting Documentation: update mount option in filesystem/vfat.txt mm: change nr_ptes BUG_ON to WARN_ON cs5535-clockevt: typo, it's MFGPT, not MFPGT
2012-08-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking update from David Miller: "A couple weeks of bug fixing in there. The largest chunk is all the broken crap Amerigo Wang found in the netpoll layer." 1) netpoll and it's users has several serious bugs: a) uses GFP_KERNEL with locks held b) interfaces requiring interrupts disabled are called with them enabled c) and vice versa d) VLAN tag demuxing, as per all other RX packet input paths, is not applied All from Amerigo Wang. 2) Hopefully cure the ipv4 mapped ipv6 address TCP early demux bugs for good, from Neal Cardwell. 3) Unlike AF_UNIX, AF_PACKET sockets don't set a default credentials when the user doesn't specify one explicitly during sendmsg(). Instead we attach an empty (zero) SCM credential block which is definitely not what we want. Fix from Eric Dumazet. 4) IPv6 illegally invokes netdevice notifiers with RCU lock held, fix from Ben Hutchings. 5) inet_csk_route_child_sock() checks wrong inet options pointer, fix from Christoph Paasch. 6) When AF_PACKET is used for transmit, packet loopback doesn't behave properly when a socket fanout is enabled, from Eric Leblond. 7) On bluetooth l2cap channel create failure, we leak the socket, from Jaganath Kanakkassery. 8) Fix all the netprio file handling bugs found by Al Viro, from John Fastabend. 9) Several error return and NULL deref bug fixes in networking drivers from Julia Lawall. 10) A large smattering of struct padding et al. kernel memory leaks to userspace found of Mathias Krause. 11) Conntrack expections in netfilter can access an uninitialized timer, fix from Pablo Neira Ayuso. 12) Several netfilter SIP tracker bug fixes from Patrick McHardy. 13) IPSEC ipv6 routes are not initialized correctly all the time, resulting in an OOPS in inet_putpeer(). Also from Patrick McHardy. 14) Bridging does rcu_dereference() outside of RCU protected area, from Stephen Hemminger. 15) Fix routing cache removal performance regression when looking up output routes that have a local destination. From Zheng Yan. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (87 commits) af_netlink: force credentials passing [CVE-2012-3520] ipv4: fix ip header ident selection in __ip_make_skb() ipv4: Use newinet->inet_opt in inet_csk_route_child_sock() tcp: fix possible socket refcount problem net: tcp: move sk_rx_dst_set call after tcp_create_openreq_child() net/core/dev.c: fix kernel-doc warning netconsole: remove a redundant netconsole_target_put() net: ipv6: fix oops in inet_putpeer() net/stmmac: fix issue of clk_get for Loongson1B. caif: Do not dereference NULL in chnl_recv_cb() af_packet: don't emit packet on orig fanout group drivers/net/irda: fix error return code drivers/net/wan/dscc4.c: fix error return code drivers/net/wimax/i2400m/fw.c: fix error return code smsc75xx: add missing entry to MAINTAINERS net: qmi_wwan: new devices: UML290 and K5006-Z net: sh_eth: Add eth support for R8A7779 device netdev/phy: skip disabled mdio-mux nodes dt: introduce for_each_available_child_of_node, of_get_next_available_child net: netprio: fix cgrp create and write priomap race ...
2012-08-21mm: compaction: Abort async compaction if locks are contended or taking too longMel Gorman
Jim Schutt reported a problem that pointed at compaction contending heavily on locks. The workload is straight-forward and in his own words; The systems in question have 24 SAS drives spread across 3 HBAs, running 24 Ceph OSD instances, one per drive. FWIW these servers are dual-socket Intel 5675 Xeons w/48 GB memory. I've got ~160 Ceph Linux clients doing dd simultaneously to a Ceph file system backed by 12 of these servers. Early in the test everything looks fine procs -------------------memory------------------ ---swap-- -----io---- --system-- -----cpu------- r b swpd free buff cache si so bi bo in cs us sy id wa st 31 15 0 287216 576 38606628 0 0 2 1158 2 14 1 3 95 0 0 27 15 0 225288 576 38583384 0 0 18 2222016 203357 134876 11 56 17 15 0 28 17 0 219256 576 38544736 0 0 11 2305932 203141 146296 11 49 23 17 0 6 18 0 215596 576 38552872 0 0 7 2363207 215264 166502 12 45 22 20 0 22 18 0 226984 576 38596404 0 0 3 2445741 223114 179527 12 43 23 22 0 and then it goes to pot procs -------------------memory------------------ ---swap-- -----io---- --system-- -----cpu------- r b swpd free buff cache si so bi bo in cs us sy id wa st 163 8 0 464308 576 36791368 0 0 11 22210 866 536 3 13 79 4 0 207 14 0 917752 576 36181928 0 0 712 1345376 134598 47367 7 90 1 2 0 123 12 0 685516 576 36296148 0 0 429 1386615 158494 60077 8 84 5 3 0 123 12 0 598572 576 36333728 0 0 1107 1233281 147542 62351 7 84 5 4 0 622 7 0 660768 576 36118264 0 0 557 1345548 151394 59353 7 85 4 3 0 223 11 0 283960 576 36463868 0 0 46 1107160 121846 33006 6 93 1 1 0 Note that system CPU usage is very high blocks being written out has dropped by 42%. He analysed this with perf and found perf record -g -a sleep 10 perf report --sort symbol --call-graph fractal,5 34.63% [k] _raw_spin_lock_irqsave | |--97.30%-- isolate_freepages | compaction_alloc | unmap_and_move | migrate_pages | compact_zone | compact_zone_order | try_to_compact_pages | __alloc_pages_direct_compact | __alloc_pages_slowpath | __alloc_pages_nodemask | alloc_pages_vma | do_huge_pmd_anonymous_page | handle_mm_fault | do_page_fault | page_fault | | | |--87.39%-- skb_copy_datagram_iovec | | tcp_recvmsg | | inet_recvmsg | | sock_recvmsg | | sys_recvfrom | | system_call | | __recv | | | | | --100.00%-- (nil) | | | --12.61%-- memcpy --2.70%-- [...] There was other data but primarily it is all showing that compaction is contended heavily on the zone->lock and zone->lru_lock. commit [b2eef8c0: mm: compaction: minimise the time IRQs are disabled while isolating pages for migration] noted that it was possible for migration to hold the lru_lock for an excessive amount of time. Very broadly speaking this patch expands the concept. This patch introduces compact_checklock_irqsave() to check if a lock is contended or the process needs to be scheduled. If either condition is true then async compaction is aborted and the caller is informed. The page allocator will fail a THP allocation if compaction failed due to contention. This patch also introduces compact_trylock_irqsave() which will acquire the lock only if it is not contended and the process does not need to schedule. Reported-by: Jim Schutt <jaschut@sandia.gov> Tested-by: Jim Schutt <jaschut@sandia.gov> Signed-off-by: Mel Gorman <mgorman@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-08-21string: do not export memweight() to userspaceWANG Cong
Fix the following warning: usr/include/linux/string.h:8: userspace cannot reference function or variable defined in the kernel Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com> Acked-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-08-22drm: Remove two unused fields from struct drm_display_modeDamien Lespiau
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-08-21af_netlink: force credentials passing [CVE-2012-3520]Eric Dumazet
Pablo Neira Ayuso discovered that avahi and potentially NetworkManager accept spoofed Netlink messages because of a kernel bug. The kernel passes all-zero SCM_CREDENTIALS ancillary data to the receiver if the sender did not provide such data, instead of not including any such data at all or including the correct data from the peer (as it is the case with AF_UNIX). This bug was introduced in commit 16e572626961 (af_unix: dont send SCM_CREDENTIALS by default) This patch forces passing credentials for netlink, as before the regression. Another fix would be to not add SCM_CREDENTIALS in netlink messages if not provided by the sender, but it might break some programs. With help from Florian Weimer & Petr Matousek This issue is designated as CVE-2012-3520 Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Petr Matousek <pmatouse@redhat.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-21target: Remove unused se_cmd.cmd_spdtlRoland Dreier
This was originally for helping fabrics to determine overflow/underflow status, and has been superceeded by SCF_OVERFLOW_BIT + SCF_UNDERFLOW_BIT. Signed-off-by: Roland Dreier <roland@purestorage.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-08-21Merge tag 'pinctrl-fixes-v3.6-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control fixes from Linus Walleij: - Fixed Nomadik errorpath - Fixed documentation spelling errors - Forward-declare struct device in a header file - Remove some extraneous code lines when getting pinctrl states - Correct the i.MX51 configure register number - Fix the Nomadik keypad function group list * tag 'pinctrl-fixes-v3.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl/nomadik: add kp_b_2 keyboard function group list pinctrl: imx51: fix .conf_reg of MX51_PAD_SD2_CMD__CSPI_MOSI trivial: pinctrl core: remove extraneous code lines pinctrl: header: trivial: declare struct device Documentation/pinctrl.txt: Fix some misspelled macros pinctrl/nomadik: fix null in irqdomain errorpath
2012-08-21Merge tag 'sound-3.6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "This update became slightly bigger than usual for rc3, but most of the commits are small and trivial. A large chunk is found for HD-audio ca0132 codec, which is mostly a clean up of the specific code, to make SPDIF working properly, and also in the new ASoC Arizona driver. One important fix is for usb-audio Oops fix since 3.5. We still see some EHCI related bandwidth problem, but usb-audio should be more stabilized now. Other than that, a Kconfig fix is spread over files, and various HD-audio and ASoC fixes as usual, in addition to Julia's error path fixes." * tag 'sound-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (42 commits) ALSA: snd-als100: fix suspend/resume ALSA: hda - Fix leftover codec->power_transition ALSA: hda - don't create dysfunctional mixer controls for ca0132 ALSA: sound/ppc/snd_ps3.c: fix error return code ALSA: sound/pci/rme9652/hdspm.c: fix error return code ALSA: sound/pci/sis7019.c: fix error return code ALSA: sound/pci/ctxfi/ctatc.c: fix error return code ALSA: sound/atmel/ac97c.c: fix error return code ALSA: sound/atmel/abdac.c: fix error return code ALSA: fix pcm.h kernel-doc warning and notation sound: oss/sb_audio: prevent divide by zero bug ASoC: wm9712: Fix inverted capture volume ASoC: wm9712: Fix microphone source selection ASoC: wm5102: Remove DRC2 ALSA: hda - Don't send invalid volume knob command on IDT 92hd75bxx ALSA: usb-audio: Fix scheduling-while-atomic bug in PCM capture stream ALSA: lx6464es: Add a missing error check ALSA: hda - Fix 'Beep Playback Switch' with no underlying mute switch ASoC: jack: Always notify full jack status ASoC: wm5110: Add missing input PGA routes ...
2012-08-20Merge tag 'asoc-3.6' of ↵Takashi Iwai
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Additional updates for 3.6 A batch more bugfixes, all driver-specific and fairly small and unremarkable in a global context. The biggest batch are for the newly added Arizona drivers.
2012-08-20Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar. A x32 socket ABI fix with a -stable backport tag among other fixes. * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x32: Use compat shims for {g,s}etsockopt Revert "x86-64/efi: Use EFI to deal with platform wall clock" x86, apic: fix broken legacy interrupts in the logical apic mode x86, build: Globally set -fno-pic x86, avx: don't use avx instructions with "noxsave" boot param
2012-08-20Merge branch 'core-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull a mutex fix from Ingo Molnar. Fix the fastpath_lock failure contention flag for xchg-based mutexes. * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: mutex: Place lock in contended state after fastpath_lock failure
2012-08-20net: ipv6: fix oops in inet_putpeer()Patrick McHardy
Commit 97bab73f (inet: Hide route peer accesses behind helpers.) introduced a bug in xfrm6_policy_destroy(). The xfrm_dst's _rt6i_peer member is not initialized, causing a false positive result from inetpeer_ptr_is_peer(), which in turn causes a NULL pointer dereference in inet_putpeer(). Pid: 314, comm: kworker/0:1 Not tainted 3.6.0-rc1+ #17 To Be Filled By O.E.M. To Be Filled By O.E.M./P4S800D-X EIP: 0060:[<c03abf93>] EFLAGS: 00010246 CPU: 0 EIP is at inet_putpeer+0xe/0x16 EAX: 00000000 EBX: f3481700 ECX: 00000000 EDX: 000dd641 ESI: f3481700 EDI: c05e949c EBP: f551def4 ESP: f551def4 DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068 CR0: 8005003b CR2: 00000070 CR3: 3243d000 CR4: 00000750 DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 DR6: ffff0ff0 DR7: 00000400 f551df04 c0423de1 00000000 f3481700 f551df18 c038d5f7 f254b9f8 f551df28 f34f85d8 f551df20 c03ef48d f551df3c c0396870 f30697e8 f24e1738 c05e98f4 f5509540 c05cd2b4 f551df7c c0142d2b c043feb5 f5509540 00000000 c05cd2e8 [<c0423de1>] xfrm6_dst_destroy+0x42/0xdb [<c038d5f7>] dst_destroy+0x1d/0xa4 [<c03ef48d>] xfrm_bundle_flo_delete+0x2b/0x36 [<c0396870>] flow_cache_gc_task+0x85/0x9f [<c0142d2b>] process_one_work+0x122/0x441 [<c043feb5>] ? apic_timer_interrupt+0x31/0x38 [<c03967eb>] ? flow_cache_new_hashrnd+0x2b/0x2b [<c0143e2d>] worker_thread+0x113/0x3cc Fix by adding a init_dst() callback to struct xfrm_policy_afinfo to properly initialize the dst's peer pointer. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-20Merge git://1984.lsi.us.es/nfDavid S. Miller
Pable Neira Ayuso says: ==================== The following five patches contain fixes for 3.6-rc, they are: * Two fixes for message parsing in the SIP conntrack helper, from Patrick McHardy. * One fix for the SIP helper introduced in the user-space cthelper infrastructure, from Patrick McHardy. * fix missing appropriate locking while modifying one conntrack entry from the nfqueue integration code, from myself. * fix possible access to uninitiliazed timer in the nf_conntrack expectation infrastructure, from myself. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-20af_packet: don't emit packet on orig fanout groupEric Leblond
If a packet is emitted on one socket in one group of fanout sockets, it is transmitted again. It is thus read again on one of the sockets of the fanout group. This result in a loop for software which generate packets when receiving one. This retransmission is not the intended behavior: a fanout group must behave like a single socket. The packet should not be transmitted on a socket if it originates from a socket belonging to the same fanout group. This patch fixes the issue by changing the transmission check to take fanout group info account. Reported-by: Aleksandr Kotov <a1k@mail.ru> Signed-off-by: Eric Leblond <eric@regit.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-20dt: introduce for_each_available_child_of_node, of_get_next_available_childTimur Tabi
Macro for_each_child_of_node() makes it easy to iterate over all of the children for a given device tree node, including those nodes that are marked as unavailable (i.e. status = "disabled"). Introduce for_each_available_child_of_node(), which is like for_each_child_of_node(), but it automatically skips unavailable nodes. This also requires the introduction of helper function of_get_next_available_child(), which returns the next available child node. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-20ALSA: fix pcm.h kernel-doc warning and notationRandy Dunlap
Fix kernel-doc warning in <sound/pcm.h> and add function name to make the kernel-doc notation complete. Warning(include/sound/pcm.h:1081): No description found for parameter 'substream' Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-08-17Merge tag 'staging-3.6-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging fixes from Greg Kroah-Hartman: "Here are some staging driver fixes (and iio driver fixes, they get lumped in with the staging stuff due to dependancies) for your 3.6-rc3 tree. Nothing major, just a bunch of fixes that people have reported. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'staging-3.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (26 commits) iio: lm3533-als: Fix build warnings staging:iio:ad7780: Mark channels as unsigned staging:iio:ad7192: Report offset and scale for temperature channel staging:iio:ad7192: Report channel offset staging:iio:ad7192: Mark channels as unsigned staging:iio:ad7192: Fix setting ACX staging:iio:ad7192: Add missing break in switch statement staging:iio:ad7793: Fix internal reference value staging:iio:ad7793: Follow new IIO naming spec staging:iio:ad7793: Fix temperature scale and offset staging:iio:ad7793: Report channel offset staging:iio:ad7793: Mark channels as unsigned staging:iio:ad7793: Add missing break in switch statement iio/adjd_s311: Fix potential memory leak in adjd_s311_update_scan_mode() iio: frequency: ADF4350: Fix potential reference div factor overflow. iio: staging: ad7298_ring: Fix maybe-uninitialized warning staging: comedi: usbduxfast: Declare MODULE_FIRMWARE usage staging: comedi: usbdux: Declare MODULE_FIRMWARE usage staging: comedi: usbduxsigma: Declare MODULE_FIRMWARE usage staging: csr: add INET dependancy ...
2012-08-17Merge tag 'ext4_for_linus_stable' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 bug fixes from Ted Ts'o: "The following are all bug fixes and regressions. The most notable are the ones which cause problems for ext4 on RAID --- a performance problem when mounting very large filesystems, and a kernel OOPS when doing an rm -rf on large directory hierarchies on fast devices." * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: fix kernel BUG on large-scale rm -rf commands ext4: fix long mount times on very big file systems ext4: don't call ext4_error while block group is locked ext4: avoid kmemcheck complaint from reading uninitialized memory ext4: make sure the journal sb is written in ext4_clear_journal_err()
2012-08-17pinctrl: header: trivial: declare struct deviceRichard Genoud
As struct device is used as a function argument, it should at least be declared (device.h is not included). Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-08-16iio: frequency: ADF4350: Fix potential reference div factor overflow.Michael Hennerich
With small channel spacing values and high reference frequencies it is possible to exceed the range of the 10-bit counter. Workaround by checking the range and widening some constrains. We don't use the REG1_PHASE value in this case the datasheet recommends to set it to 1 if not used. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-08-16Merge tag 'vfio-for-v3.6-rc1' of git://github.com/awilliam/linux-vfioLinus Torvalds
Pull VFIO fix from Alex Williamson: "Just a trivial patch to include vfio.h in the installed headers so we can complete userspace integration into QEMU." * tag 'vfio-for-v3.6-rc1' of git://github.com/awilliam/linux-vfio: vfio: Include vfio.h in installed headers
2012-08-16Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse Pull fuse updates from Miklos Szeredi. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: fuse: verify all ioctl retry iov elements fuse: add missing INIT flag descriptions fuse: add missing INIT flags fuse: update attributes on aio_read fuse: invalidate inode mapping if mtime changes fuse: add FUSE_AUTO_INVAL_DATA init flag
2012-08-14llc2: Fix silent failure of llc_station_init()Ben Hutchings
llc_station_init() creates and processes an event skb with no effect other than to change the state from DOWN to UP. Allocation failure is reported, but then ignored by its caller, llc2_init(). Remove this possibility by simply initialising the state as UP. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14netpoll: convert several functions to boolAmerigo Wang
These functions are just boolean, let them return bool instead of int. Cc: David Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14netpoll: check netpoll tx status on the right deviceAmerigo Wang
Although this doesn't matter actually, because netpoll_tx_running() doesn't use the parameter, the code will be more readable. For team_dev_queue_xmit() we have to move it down to avoid compile errors. Cc: David Miller <davem@davemloft.net> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14netpoll: take rcu_read_lock_bh() in netpoll_send_skb_on_dev()Amerigo Wang
This patch fixes several problems in the call path of netpoll_send_skb_on_dev(): 1. Disable IRQ's before calling netpoll_send_skb_on_dev(). 2. All the callees of netpoll_send_skb_on_dev() should use rcu_dereference_bh() to dereference ->npinfo. 3. Rename arp_reply() to netpoll_arp_reply(), the former is too generic. Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14netpoll: use netpoll_rx_on() in netpoll_rx()Amerigo Wang
The logic of the code is same, just call netpoll_rx_on(). Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14netpoll: take rcu_read_lock_bh() in netpoll_rx()Amerigo Wang
In __netpoll_rx(), it dereferences ->npinfo without rcu_dereference_bh(), this patch fixes it by using the 'npinfo' passed from netpoll_rx() where it is already dereferenced with rcu_dereference_bh(). Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14netpoll: make __netpoll_cleanup non-blockAmerigo Wang
Like the previous patch, slave_disable_netpoll() and __netpoll_cleanup() may be called with read_lock() held too, so we should make them non-block, by moving the cleanup and kfree() to call_rcu_bh() callbacks. Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14netpoll: use GFP_ATOMIC in slave_enable_netpoll() and __netpoll_setup()Amerigo Wang
slave_enable_netpoll() and __netpoll_setup() may be called with read_lock() held, so should use GFP_ATOMIC to allocate memory. Eric suggested to pass gfp flags to __netpoll_setup(). Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14Revert "x86-64/efi: Use EFI to deal with platform wall clock"H. Peter Anvin
This reverts commit bacef661acdb634170a8faddbc1cf28e8f8b9eee. This commit has been found to cause serious regressions on a number of ASUS machines at the least. We probably need to provide a 1:1 map in addition to the EFI virtual memory map in order for this to work. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Reported-and-bisected-by: Jérôme Carretero <cJ-ko@zougloub.eu> Cc: Jan Beulich <jbeulich@suse.com> Cc: Matt Fleming <matt.fleming@intel.com> Cc: Matthew Garrett <mjg@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20120805172903.5f8bb24c@zougloub.eu
2012-08-14Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm fixes from Dave Airlie: "Radeon and intel fixes mostly, one fix to the mgag200 driver to not hang on certain server variants." * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (32 commits) drm/radeon: fix typo in function header comment drm/radeon/kms: implement timestamp userspace query (v2) drm/radeon/kms: add MSAA texture support for r600-evergreen drm/radeon/kms: reorder code in r600_check_texture_resource drm/radeon: fence virtual address and free it once idle v4 drm/radeon: fix some missing parens in asic macros drm/radeon: add some new SI pci ids drm/radeon: fix ordering in pll picking on dce4+ drm/radeon: do not reenable crtc after moving vram start address drm/radeon: fix bank tiling parameters on cayman drm/radeon: fix bank tiling parameters on evergreen drm/radeon: fix bank tiling parameters on SI drm/radeon: properly handle crtc powergating drm/radeon: properly handle SS overrides on TN (v2) drm/radeon/dce4+: set a more reasonable cursor watermark drm/radeon: fix handling for ddc type 5 on combios drm/mgag200: fix G200ER pll picking algorithm drm/edid: Fix potential memory leak in edid_load() drm/udl: Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(.. [1] drm/radeon/kms: allow "invalid" DB formats as a means to disable DB ...
2012-08-13mutex: Place lock in contended state after fastpath_lock failureWill Deacon
ARM recently moved to asm-generic/mutex-xchg.h for its mutex implementation after the previous implementation was found to be missing some crucial memory barriers. However, this has revealed some problems running hackbench on SMP platforms due to the way in which the MUTEX_SPIN_ON_OWNER code operates. The symptoms are that a bunch of hackbench tasks are left waiting on an unlocked mutex and therefore never get woken up to claim it. This boils down to the following sequence of events: Task A Task B Task C Lock value 0 1 1 lock() 0 2 lock() 0 3 spin(A) 0 4 unlock() 1 5 lock() 0 6 cmpxchg(1,0) 0 7 contended() -1 8 lock() 0 9 spin(C) 0 10 unlock() 1 11 cmpxchg(1,0) 0 12 unlock() 1 At this point, the lock is unlocked, but Task B is in an uninterruptible sleep with nobody to wake it up. This patch fixes the problem by ensuring we put the lock into the contended state if we fail to acquire it on the fastpath, ensuring that any blocked waiters are woken up when the mutex is released. Signed-off-by: Will Deacon <will.deacon@arm.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Chris Mason <chris.mason@fusionio.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: <stable@vger.kernel.org> Reviewed-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/n/tip-6e9lrw2avczr0617fzl5vqb8@git.kernel.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2012-08-13drm/radeon/kms: implement timestamp userspace query (v2)Marek Olšák
Returns a snapshot of the GPU clock counter. Needed for certain OpenGL extensions. v2: agd5f - address Jerome's comments - add function documentation Signed-off-by: Marek Olšák <maraeo@gmail.com> Reviewed-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2012-08-13drm/radeon: add some new SI pci idsAlex Deucher
Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2012-08-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking changes from David Miller: "Most importantly this should cure the ipv4-mapped ipv6 socket TCP crashes some people were seeing, otherwise: 1) Fix e1000e autonegotiation handling regression, from Tushar Dave. 2) Fix TX data corruption race on e1000e down, also from Tushar Dave. 3) Fix bfin_sir IRDA driver build, from Sonic Zhang. 4) AF_PACKET mmap() tests a flag in the TX ring shared between userspace and the kernel for an internal consistency check. It really shouldn't do this to validate the kernel's own behavior because the user can corrupt it to be any value at all. From Daniel Borkmann. 5) Fix TCP metrics leak on netns dismantle, from Eric Dumazet. 6) Orphan the anonymous TCP socket from the SKB in ip_send_unicast_reply() so that the rest of the stack needn't see it. Otherwise we get selinux problems of all sorts, from Eric Dumazet. This is the best way to fix this since the socket is just a place holder for sending packets in a context where we have no real socket at all. 7) Fix TUN detach crashes, from Stanislav Kinsbursky. 8) dev_set_alias() leaks memory on krealloc() failure, from Alexey Khoroshilov. 9) FIB trie must use call_rcu() not call_rcu_bh(), because this code is not universally invoked from software interrupts. From Eric Dumazet. 10) PPTP looks up ipv4 routes with the wrong network namespace, fix from Gao Feng." * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (33 commits) bnx2x: Fix compiler warnings af_packet: remove BUG statement in tpacket_destruct_skb macvtap: rcu_dereference outside read-lock section codel: refine one condition to avoid a nul rec_inv_sqrt ixgbe: add missing braces ipv4: fix ip_send_skb() net: tcp: ipv6_mapped needs sk_rx_dst_set method ipv4: tcp: unicast_sock should not land outside of TCP stack bnx2x: Fix recovery flow cleanup during probe bnx2x: fix unload previous driver flow when flr-capable tun: don't zeroize sock->file on detach igb: Fix register defines for all non-82575 hardware e1000e: fix panic while dumping packets on Tx hang with IOMMU igb: fix panic while dumping packets on Tx hang with IOMMU tcp: must free metrics at net dismantle net/stmmac: mark probe function as __devinit lpc_eth: remove obsolete ifdefs net/core: Fix potential memory leak in dev_set_alias() cdc-phonet: Don't leak in usbpn_open batman-adv: Fix mem leak in the batadv_tt_local_event() function ...
2012-08-12Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull a security subsystem fix from James Morris "This fixes an issue in the Yama LSM" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: Yama: higher restrictions should block PTRACE_TRACEME
2012-08-12Merge tag 'pm-for-3.6-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fixes from Rafael J. Wysocki: - Fix for two recent regressions in the generic PM domains framework. - Revert of a commit that introduced a resume regression and is conceptually incorrect in my opinion. - Fix for a return value in pcc-cpufreq.c from Julia Lawall. - RTC wakeup signaling fix from Neil Brown. - Suppression of compiler warnings for CONFIG_PM_SLEEP unset in ACPI, platform/x86 and TPM drivers. * tag 'pm-for-3.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: tpm_tis / PM: Fix unused function warning for CONFIG_PM_SLEEP platform / x86 / PM: Fix unused function warnings for CONFIG_PM_SLEEP ACPI / PM: Fix unused function warnings for CONFIG_PM_SLEEP Revert "NMI watchdog: fix for lockup detector breakage on resume" PM: Make dev_pm_get_subsys_data() always return 0 on success drivers/cpufreq/pcc-cpufreq.c: fix error return code RTC: Avoid races between RTC alarm wakeup and suspend.
2012-08-12Merge tag 'fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull arm-soc bug fixes from Arnd Bergmann: "These are a bunch of bug fixes that came in after the merge window and one update for the MAINTAINERS file. The largest part of the fixes are patches that address bugs found by building all the ARM defconfig files. There are a lot more warnings that we have patches for, but the others are either still under discussion or are harmless and do not cause actual problems besides making the build slightly noisy." * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (30 commits) ARM: davinci: remove broken ntosd2_init_i2c ARM: s3c24xx: enable CONFIG_BUG for tct_hammer omap-rng: fix use of SIMPLE_DEV_PM_OPS spi/s3c64xx: improve error handling mtd/omap2: fix dmaengine_slave_config error handling gpio: em: do not discard em_gio_irq_domain_cleanup ARM: exynos: exynos_pm_add_dev_to_genpd may be unused ARM: imx: gpmi-nand depends on mxs-dma ARM: integrator: include <linux/export.h> ARM: s3c24xx: use new PWM driver ARM: sa1100: include linux/io.h in hackkit leds code Input: eeti_ts: pass gpio value instead of IRQ ARM: pxa: remove irq_to_gpio from ezx-pcap driver ARM: tegra: more regulator fixes for Harmony usb/ohci-omap: remove unused variable mfd/asic3: fix asic3_mfd_probe return value ARM: kirkwood: fix typo in Makefile.boot i.MX27: Fix emma-prp and csi clocks. ARM: integrator: use clk_prepare_enable() for timer MAINTAINERS: update entry for Linus Walleij ...
2012-08-10codel: refine one condition to avoid a nul rec_inv_sqrtEric Dumazet
One condition before codel_Newton_step() was not good if we never left the dropping state for a flow. As a result rec_inv_sqrt was 0, instead of the ~0 initial value. codel control law was then set to a very aggressive mode, dropping many packets before reaching 'target' and recovering from this problem. To keep codel_vars_init() as efficient as possible, refine the condition to make sure rec_inv_sqrt initial value is correct Many thanks to Anton Mich for discovering the issue and suggesting a fix. Reported-by: Anton Mich <lp2s1h@gmail.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-10ipv4: fix ip_send_skb()Eric Dumazet
ip_send_skb() can send orphaned skb, so we must pass the net pointer to avoid possible NULL dereference in error path. Bug added by commit 3a7c384ffd57 (ipv4: tcp: unicast_sock should not land outside of TCP stack) Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>