- 08 Jan, 2015 3 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds authored
pull virtio/vhost fixes from Michael Tsirkin: "This fixes a couple of bugs triggered by hot-unplug of virtio devices, as well as a regression in vhost-net" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: vhost/net: length miscalculation virtio_pci: document why we defer kfree virtio_pci: defer kfree until release callback virtio_pci: device-specific release callback virtio: make del_vqs idempotent
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommuLinus Torvalds authored
Pull IOMMU fixes from Joerg Roedel: "Including: - a domain structure leak fix in the Intel VT-d driver - compile error fix for the VMSA IPMMU driver because of the IOMMU_EXEC -> IOMMU_NOEXEC conversion - two small cleanups as an aftermath of the merge window and the domain-leak fix" * tag 'iommu-fixes-v3.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu/rockchip: Drop owner assignment from platform_drivers iommu/vt-d: Remove dead code in device_notifier iommu/vt-d: Fix dmar_domain leak in iommu_attach_device iommu/ipmmu-vmsa: Change IOMMU_EXEC to IOMMU_NOEXEC
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds authored
Pull crypto fixes from Herbert Xu: "This fixes a build problem with sha-mb with old toolchains and an implementation bug in the ctr(aes)/by8 branch of aesni-intel that's enabled when AVX is available" * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: sha-mb - Add avx2_supported check. crypto: aesni - fix "by8" variant for 128 bit keys
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- 07 Jan, 2015 3 commits
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Michael S. Tsirkin authored
commit 8b38694a vhost/net: virtio 1.0 byte swap had this chunk: - heads[headcount - 1].len += datalen; + heads[headcount - 1].len = cpu_to_vhost32(vq, len - datalen); This adds datalen with the wrong sign, causing guest panics. Fixes: 8b38694aReported-by: Alex Williamson <alex.williamson@redhat.com> Suggested-by: Greg Kurz <gkurz@linux.vnet.ibm.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
Pull networking fixes from David Miller: "Just a pile of random fixes, including: 1) Do not apply TSO limits to non-TSO packets, fix from Herbert Xu. 2) MDI{,X} eeprom check in e100 driver is reversed, from John W. Linville. 3) Missing error return assignments in several ethernet drivers, from Julia Lawall. 4) Altera TSE device doesn't come back up after ifconfig down/up sequence, fix from Kostya Belezko. 5) Add more cases to the check for whether the qmi_wwan device has a bogus MAC address and needs to be assigned a random one. From Kristian Evensen. 6) Fix interrupt hangs in CPSW, from Felipe Balbi. 7) Implement ndo_features_check in r8152 so that the stack doesn't feed GSO packets which are outside of the chip's capabilities. From Hayes Wang" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (26 commits) qla3xxx: don't allow never end busy loop xen-netback: fixing the propagation of the transmit shaper timeout r8152: support ndo_features_check batman-adv: fix potential TT client + orig-node memory leak batman-adv: fix multicast counter when purging originators batman-adv: fix counter for multicast supporting nodes batman-adv: fix lock class for decoding hash in network-coding.c batman-adv: fix delayed foreign originator recognition batman-adv: fix and simplify condition when bonding should be used Revert "mac80211: Fix accounting of the tailroom-needed counter" net: ethernet: cpsw: fix hangs with interrupts enic: free all rq buffs when allocation fails qmi_wwan: Set random MAC on devices with buggy fw openvswitch: Consistently include VLAN header in flow and port stats. tcp: Do not apply TSO segment limit to non-TSO packets Altera TSE: Add missing phydev net/mlx4_core: Fix error flow in mlx4_init_hca() net/mlx4_core: Correcly update the mtt's offset in the MR re-reg flow qlcnic: Fix return value in qlcnic_probe() net: axienet: fix error return code ...
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git://git.code.sf.net/p/openipmi/linux-ipmiLinus Torvalds authored
Pull IPMI fixlet from Corey Minyard: "Fix a compile warning" * tag 'for-linus-3' of git://git.code.sf.net/p/openipmi/linux-ipmi: ipmi: Fix compile warning with tv_usec
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- 06 Jan, 2015 18 commits
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Andy Shevchenko authored
The counter variable wasn't increased at all which may stuck under certain circumstances. Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4Linus Torvalds authored
Pull ext4 bugfixes from Ted Ts'o: "Revert a potential seek_data/hole regression which shows up when using ext4 to handle ext3 file systems, plus two minor bug fixes" * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: remove spurious KERN_INFO from ext4_warning call Revert "ext4: fix suboptimal seek_{data,hole} extents traversial" ext4: prevent online resize with backup superblock
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Linus Torvalds authored
Jay Foad reports that the address sanitizer test (asan) sometimes gets confused by a stack pointer that ends up being outside the stack vma that is reported by /proc/maps. This happens due to an interaction between RLIMIT_STACK and the guard page: when we do the guard page check, we ignore the potential error from the stack expansion, which effectively results in a missing guard page, since the expected stack expansion won't have been done. And since /proc/maps explicitly ignores the guard page (commit d7824370: "mm: fix up some user-visible effects of the stack guard page"), the stack pointer ends up being outside the reported stack area. This is the minimal patch: it just propagates the error. It also effectively makes the guard page part of the stack limit, which in turn measn that the actual real stack is one page less than the stack limit. Let's see if anybody notices. We could teach acct_stack_growth() to allow an extra page for a grow-up/grow-down stack in the rlimit test, but I don't want to add more complexity if it isn't needed. Reported-and-tested-by: Jay Foad <jay.foad@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.open-mesh.org/linux-mergeDavid S. Miller authored
Included changes: - ensure bonding is used (if enabled) for packets coming in the soft interface - fix race condition to avoid orig_nodes to be deleted right after being added - avoid false positive lockdep splats by assigning lockclass to the proper hashtable lock objects - avoid miscounting of multicast 'disabled' nodes in the network - fix memory leak in the Global Translation Table in case of originator interval change Signed-off-by: David S. Miller <davem@davemloft.net>
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Palik, Imre authored
Since e9ce7cb6 ("xen-netback: Factor queue-specific data into queue struct"), the transimt shaper timeout is always set to 0. The value the user sets via xenbus is never propagated to the transmit shaper. This patch fixes the issue. Cc: Anthony Liguori <aliguori@amazon.com> Signed-off-by: Imre Palik <imrep@amazon.de> Acked-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Merge tag 'mac80211-for-davem-2015-01-06' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 Here's just a single fix - a revert of a patch that broke the p54 and cw2100 drivers (arguably due to bad assumptions there.) Since this affects kernels since 3.17, I decided to revert for now and we'll revisit this optimisation properly for -next. Signed-off-by: David S. Miller <davem@davemloft.net>
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hayeswang authored
Support ndo_features_check to avoid: - the transport offset is more than the hw limitation when using hw checksum. - the skb->len of a GSO packet is more than the limitation. Signed-off-by: Hayes Wang <hayeswang@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Michael S. Tsirkin authored
The reason we defer kfree until release function is because it's a general rule for kobjects: kfree of the reference counter itself is only legal in the release function. Previous patch didn't make this clear, document this in code. Cc: stable@vger.kernel.org Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Sasha Levin authored
A struct device which has just been unregistered can live on past the point at which a driver decides to drop it's initial reference to the kobject gained on allocation. This implies that when releasing a virtio device, we can't free a struct virtio_device until the underlying struct device has been released, which might not happen immediately on device_unregister(). Unfortunately, this is exactly what virtio pci does: it has an empty release callback, and frees memory immediately after unregistering the device. This causes an easy to reproduce crash if CONFIG_DEBUG_KOBJECT_RELEASE it enabled. To fix, free the memory only once we know the device is gone in the release callback. Cc: stable@vger.kernel.org Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Michael S. Tsirkin authored
It turns out we need to add device-specific code in release callback. Move it to virtio_pci_legacy.c. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Michael S. Tsirkin authored
Our code calls del_vqs multiple times, assuming it's idempotent. commit 3ec7a77b virtio_pci: free up vq->priv broke this assumption, by adding kfree there, so multiple calls cause double free. Fix it up. Fixes: 3ec7a77bReported-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Linus Lüssing authored
This patch fixes a potential memory leak which can occur once an originator times out. On timeout the according global translation table entry might not get purged correctly. Furthermore, the non purged TT entry will cause its orig-node to leak, too. Which additionally can lead to the new multicast optimization feature not kicking in because of a therefore bogus counter. In detail: The batadv_tt_global_entry->orig_list holds the reference to the orig-node. Usually this reference is released after BATADV_PURGE_TIMEOUT through: _batadv_purge_orig()-> batadv_purge_orig_node()->batadv_update_route()->_batadv_update_route()-> batadv_tt_global_del_orig() which purges this global tt entry and releases the reference to the orig-node. However, if between two batadv_purge_orig_node() calls the orig-node timeout grew to 2*BATADV_PURGE_TIMEOUT then this call path isn't reached. Instead the according orig-node is removed from the originator hash in _batadv_purge_orig(), the batadv_update_route() part is skipped and won't be reached anymore. Fixing the issue by moving batadv_tt_global_del_orig() out of the rcu callback. Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue> Acked-by: Antonio Quartulli <antonio@meshcoding.com> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
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Linus Lüssing authored
When purging an orig_node we should only decrease counter tracking the number of nodes without multicast optimizations support if it was increased through this orig_node before. A not yet quite initialized orig_node (meaning it did not have its turn in the mcast-tvlv handler so far) which gets purged would not adhere to this and will lead to a counter imbalance. Fixing this by adding a check whether the orig_node is mcast-initalized before decreasing the counter in the mcast-orig_node-purging routine. Introduced by 60432d75 ("batman-adv: Announce new capability via multicast TVLV") Reported-by: Tobias Hachmer <tobias@hachmer.de> Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
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Linus Lüssing authored
A miscounting of nodes having multicast optimizations enabled can lead to multicast packet loss in the following scenario: If the first OGM a node receives from another one has no multicast optimizations support (no multicast tvlv) then we are missing to increase the counter. This potentially leads to the wrong assumption that we could safely use multicast optimizations. Fixings this by increasing the counter if the initial OGM has the multicast TVLV unset, too. Introduced by 60432d75 ("batman-adv: Announce new capability via multicast TVLV") Reported-by: Tobias Hachmer <tobias@hachmer.de> Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
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Martin Hundebøll authored
batadv_has_set_lock_class() is called with the wrong hash table as first argument (probably due to a copy-paste error), which leads to false positives when running with lockdep. Introduced-by: 612d2b4f ("batman-adv: network coding - save overheard and tx packets for decoding") Signed-off-by: Martin Hundebøll <martin@hundeboll.net> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
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Linus Lüssing authored
Currently it can happen that the reception of an OGM from a new originator is not being accepted. More precisely it can happen that an originator struct gets allocated and initialized (batadv_orig_node_new()), even the TQ gets calculated and set correctly (batadv_iv_ogm_calc_tq()) but still the periodic orig_node purging thread will decide to delete it if it has a chance to jump between these two function calls. This is because batadv_orig_node_new() initializes the last_seen value to zero and its caller (batadv_iv_ogm_orig_get()) makes it visible to other threads by adding it to the hash table already. batadv_iv_ogm_calc_tq() will set the last_seen variable to the correct, current time a few lines later but if the purging thread jumps in between that it will think that the orig_node timed out and will wrongly schedule it for deletion already. If the purging interval is the same as the originator interval (which is the default: 1 second), then this game can continue for several rounds until the random OGM jitter added enough difference between these two (in tests, two to about four rounds seemed common). Fixing this by initializing the last_seen variable of an orig_node to the current time before adding it to the hash table. Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
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Simon Wunderlich authored
The current condition actually does NOT consider bonding when the interface the packet came in from is the soft interface, which is the opposite of what it should do (and the comment describes). Fix that and slightly simplify the condition. Reported-by: Ray Gibson <booray@gmail.com> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
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Linus Torvalds authored
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- 05 Jan, 2015 11 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linuxLinus Torvalds authored
Pull powerpc fixes from Michael Ellerman: - Wire up sys_execveat(). Tested on 32 & 64 bit. - Fix for kdump on LE systems with cpus hot unplugged. - Revert Anton's fix for "kernel BUG at kernel/smpboot.c:134!", this broke other platforms, we'll do a proper fix for 3.20. * tag 'powerpc-3.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: Revert "powerpc: Secondary CPUs must set cpu_callin_map after setting active and online" powerpc/kdump: Ignore failure in enabling big endian exception during crash powerpc: Wire up sys_execveat() syscall
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linuxLinus Torvalds authored
Pull ia64 fixlet from Tony Luck: "Add execveat syscall" * tag 'please-pull-syscall' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux: [IA64] Enable execveat syscall for ia64
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Tony Luck authored
See commit 51f39a1f syscalls: implement execveat() system call Signed-off-by: Tony Luck <tony.luck@intel.com>
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Wolfram Sang authored
This platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Joerg Roedel authored
This code only runs when action == BUS_NOTIFY_REMOVED_DEVICE, so it can't be BUS_NOTIFY_DEL_DEVICE. Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Joerg Roedel authored
Since commit 1196c2fb a domain is only destroyed in the notifier path if it is hot-unplugged. This caused a domain leakage in iommu_attach_device when a driver was unbound from the device and bound to VFIO. In this case the device is attached to a new domain and unlinked from the old domain. At this point nothing points to the old domain anymore and its memory is leaked. Fix this by explicitly freeing the old domain in iommu_attach_domain. Fixes: 1196c2fb (iommu/vt-d: Fix dmar_domain leak in iommu_attach_device) Cc: stable@vger.kernel.org # v3.18 Tested-by: Jerry Hoemann <jerry.hoemann@hp.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Laurent Pinchart authored
Commit a720b41c ("iommu/arm-smmu: change IOMMU_EXEC to IOMMU_NOEXEC") has inverted and replaced the IOMMU_EXEC flag with IOMMU_NOEXEC. Update the driver accordingly. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Vinson Lee authored
This patch fixes this allyesconfig target build error with older binutils. LD arch/x86/crypto/built-in.o ld: arch/x86/crypto/sha-mb/built-in.o: No such file: No such file or directory Cc: stable@vger.kernel.org # 3.18+ Signed-off-by: Vinson Lee <vlee@twitter.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Mathias Krause authored
The "by8" counter mode optimization is broken for 128 bit keys with input data longer than 128 bytes. It uses the wrong key material for en- and decryption. The key registers xkey0, xkey4, xkey8 and xkey12 need to be preserved in case we're handling more than 128 bytes of input data -- they won't get reloaded after the initial load. They must therefore be (a) loaded on the first iteration and (b) be preserved for the latter ones. The implementation for 128 bit keys does not comply with (a) nor (b). Fix this by bringing the implementation back to its original source and correctly load the key registers and preserve their values by *not* re-using the registers for other purposes. Kudos to James for reporting the issue and providing a test case showing the discrepancies. Reported-by: James Yonan <james@openvpn.net> Cc: Chandramouli Narayanan <mouli@linux.intel.com> Cc: <stable@vger.kernel.org> # v3.18 Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Johannes Berg authored
This reverts commit ca34e3b5. It turns out that the p54 and cw2100 drivers assume that there's tailroom even when they don't say they really need it. However, there's currently no way for them to explicitly say they do need it, so for now revert this. This fixes https://bugzilla.kernel.org/show_bug.cgi?id=90331. Cc: stable@vger.kernel.org Fixes: ca34e3b5 ("mac80211: Fix accounting of the tailroom-needed counter") Reported-by: Christopher Chavez <chrischavez@gmx.us> Bisected-by: Larry Finger <Larry.Finger@lwfinger.net> Debugged-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Felipe Balbi authored
The CPSW IP implements pulse-signaled interrupts. Due to that we must write a correct, pre-defined value to the CPDMA_MACEOIVECTOR register so the controller generates a pulse on the correct IRQ line to signal the End Of Interrupt. The way the driver is written today, all four IRQ lines are requested using the same IRQ handler and, because of that, we could fall into situations where a TX IRQ fires but we tell the controller that we ended an RX IRQ (or vice-versa). This situation triggers an IRQ storm on the reserved IRQ 127 of INTC which will in turn call ack_bad_irq() which will, then, print a ton of: unexpected IRQ trap at vector 00 In order to fix the problem, we are moving all calls to cpdma_ctlr_eoi() inside the IRQ handler and making sure we *always* write the correct value to the CPDMA_MACEOIVECTOR register. Note that the algorithm assumes that IRQ numbers and value-to-be-written-to-EOI are proportional, meaning that a write of value 0 would trigger an EOI pulse for the RX_THRESHOLD Interrupt and that's the IRQ number sitting in the 0-th index of our irqs_table array. This, however, is safe at least for current implementations of CPSW so we will refrain from making the check smarter (and, as a side-effect, slower) until we actually have a platform where IRQ lines are swapped. This patch has been tested for several days with AM335x- and AM437x-based platforms. AM57x was left out because there are still pending patches to enable ethernet in mainline for that platform. A read of the TRM confirms the statement on previous paragraph. Reported-by: Yegor Yefremov <yegorslists@googlemail.com> Fixes: 510a1e7 (drivers: net: davinci_cpdma: acknowledge interrupt properly) Cc: <stable@vger.kernel.org> # v3.9+ Signed-off-by: Felipe Balbi <balbi@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 04 Jan, 2015 4 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/rw/umlLinus Torvalds authored
Pull UML fixes from Richard Weinberger: "Two fixes for UML regressions. Nothing exciting" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: x86, um: actually mark system call tables readonly um: Skip futex_atomic_cmpxchg_inatomic() test
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Pavel Machek authored
Commit 9fc2105a ("ARM: 7830/1: delay: don't bother reporting bogomips in /proc/cpuinfo") breaks audio in python, and probably elsewhere, with message FATAL: cannot locate cpu MHz in /proc/cpuinfo I'm not the first one to hit it, see for example https://theredblacktree.wordpress.com/2014/08/10/fatal-cannot-locate-cpu-mhz-in-proccpuinfo/ https://devtalk.nvidia.com/default/topic/765800/workaround-for-fatal-cannot-locate-cpu-mhz-in-proc-cpuinf/?offset=1 Reading original changelog, I have to say "Stop breaking working setups. You know who you are!". Signed-off-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Daniel Borkmann authored
Commit a074335a ("x86, um: Mark system call tables readonly") was supposed to mark the sys_call_table in UML as RO by adding the const, but it doesn't have the desired effect as it's nevertheless being placed into the data section since __cacheline_aligned enforces sys_call_table being placed into .data..cacheline_aligned instead. We need to use the ____cacheline_aligned version instead to fix this issue. Before: $ nm -v arch/x86/um/sys_call_table_64.o | grep -1 "sys_call_table" U sys_writev 0000000000000000 D sys_call_table 0000000000000000 D syscall_table_size After: $ nm -v arch/x86/um/sys_call_table_64.o | grep -1 "sys_call_table" U sys_writev 0000000000000000 R sys_call_table 0000000000000000 D syscall_table_size Fixes: a074335a ("x86, um: Mark system call tables readonly") Cc: H. Peter Anvin <hpa@zytor.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: Richard Weinberger <richard@nod.at>
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Richard Weinberger authored
futex_atomic_cmpxchg_inatomic() does not work on UML because it triggers a copy_from_user() in kernel context. On UML copy_from_user() can only be used if the kernel was called by a real user space process such that UML can use ptrace() to fetch the value. Reported-by: Miklos Szeredi <miklos@szeredi.hu> Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Richard Weinberger <richard@nod.at> Tested-by: Daniel Walter <d.walter@0x90.at>
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- 02 Jan, 2015 1 commit
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Govindarajulu Varadarajan authored
When allocation of all RQs fail, we do not free previously allocated buffers, before returning error. This causes memory leak. This patch fixes this by calling vnic_rq_clean(), which frees all the rq buffers. Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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