- 13 Feb, 2017 1 commit
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Alexei Starovoitov authored
If BPF_F_ALLOW_OVERRIDE flag is used in BPF_PROG_ATTACH command to the given cgroup the descendent cgroup will be able to override effective bpf program that was inherited from this cgroup. By default it's not passed, therefore override is disallowed. Examples: 1. prog X attached to /A with default prog Y fails to attach to /A/B and /A/B/C Everything under /A runs prog X 2. prog X attached to /A with allow_override. prog Y fails to attach to /A/B with default (non-override) prog M attached to /A/B with allow_override. Everything under /A/B runs prog M only. 3. prog X attached to /A with allow_override. prog Y fails to attach to /A with default. The user has to detach first to switch the mode. In the future this behavior may be extended with a chain of non-overridable programs. Also fix the bug where detach from cgroup where nothing is attached was not throwing error. Return ENOENT in such case. Add several testcases and adjust libbpf. Fixes: 30070984 ("cgroup: add support for eBPF programs") Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Tejun Heo <tj@kernel.org> Acked-by: Daniel Mack <daniel@zonque.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 12 Feb, 2017 2 commits
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Nathan Fontenot authored
The failure path in ibmvnic_open() mistakenly makes a second call to napi_enable instead of calling napi_disable. This can result in a BUG_ON for any queues that were enabled in the previous call to napi_enable. Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Nathan Fontenot authored
Initialize condition variables prior to invoking any work that can mark them complete. This resolves a race in the ibmvnic driver where the driver faults trying to complete an uninitialized condition variable. Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 10 Feb, 2017 15 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
Pull networking fixes from David Miller: 1) If the timing is wrong we can indefinitely stop generating new ipv6 temporary addresses, from Marcus Huewe. 2) Don't double free per-cpu stats in ipv6 SIT tunnel driver, from Cong Wang. 3) Put protections in place so that AF_PACKET is not able to submit packets which don't even have a link level header to drivers. From Willem de Bruijn. 4) Fix memory leaks in ipv4 and ipv6 multicast code, from Hangbin Liu. 5) Don't use udp_ioctl() in l2tp code, UDP version expects a UDP socket and that doesn't go over very well when it is passed an L2TP one. Fix from Eric Dumazet. 6) Don't crash on NULL pointer in phy_attach_direct(), from Florian Fainelli. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: l2tp: do not use udp_ioctl() xen-netfront: Delete rx_refill_timer in xennet_disconnect_backend() NET: mkiss: Fix panic net: hns: Fix the device being used for dma mapping during TX net: phy: Initialize mdio clock at probe function igmp, mld: Fix memory leak in igmpv3/mld_del_delrec() xen-netfront: Improve error handling during initialization sierra_net: Skip validating irrelevant fields for IDLE LSIs sierra_net: Add support for IPv6 and Dual-Stack Link Sense Indications kcm: fix 0-length case for kcm_sendmsg() xen-netfront: Rework the fix for Rx stall during OOM and network stress net: phy: Fix PHY module checks and NULL deref in phy_attach_direct() net: thunderx: Fix PHY autoneg for SGMII QLM mode net: dsa: Do not destroy invalid network devices ping: fix a null pointer dereference packet: round up linear to header len net: introduce device min_header_len sit: fix a double free on error path lwtunnel: valid encap attr check should return 0 when lwtunnel is disabled ipv6: addrconf: fix generation of new temporary addresses
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git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdmaLinus Torvalds authored
Pull rdma fixes from Doug Ledford: "Third round of -rc fixes for 4.10 kernel: - two security related issues in the rxe driver - one compile issue in the RDMA uapi header" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: RDMA: Don't reference kernel private header from UAPI header IB/rxe: Fix mem_check_range integer overflow IB/rxe: Fix resid update
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linuxLinus Torvalds authored
Pull i2c bugfixes from Wolfram Sang: "Two bugfixes (proper IO mapping and use of mutex) for a driver feature we introduced in this cycle" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: piix4: Request the SMBUS semaphore inside the mutex i2c: piix4: Fix request_region size
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmcLinus Torvalds authored
Pull MMC host fix from Ulf Hansson: "mmci: Fix hang while waiting for busy-end interrupt" * tag 'mmc-v4.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: mmci: avoid clearing ST Micro busy end interrupt mistakenly
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/soundLinus Torvalds authored
Pull sound fixes from Takashi Iwai: "Here are some last-minute fixes: two fixes for races in ALSA sequencer queue spotted by syzkaller, a revert for a regression of LINE6 driver (since 4.9), and a trivial new codec ID addition for Nvidia HDMI" * tag 'sound-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda - adding a new NV HDMI/DP codec ID in the driver ALSA: seq: Fix race at creating a queue Revert "ALSA: line6: Only determine control port properties if needed" ALSA: seq: Don't handle loop timeout at snd_seq_pool_done()
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git://linux-nfs.org/~bfields/linuxLinus Torvalds authored
Pull nfsd revert from Bruce Fields: "This patch turned out to have a couple problems. The problems are fixable, but at least one of the fixes is a little ugly. The original bug has always been there, so we can wait another week or two to get this right" * tag 'nfsd-4.10-3' of git://linux-nfs.org/~bfields/linux: nfsd: Revert "nfsd: special case truncates some more"
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull powerpc fixes friom Michael Ellerman: "Apologies for the late pull request, but Ben has been busy finding bugs. - Userspace was semi-randomly segfaulting on radix due to us incorrectly handling a fault triggered by autonuma, caused by a patch we merged earlier in v4.10 to prevent the kernel executing userspace. - We weren't marking host IPIs properly for KVM in the OPAL ICP backend. - The ERAT flushing on radix was missing an isync and was incorrectly marked as DD1 only. - The powernv CPU hotplug code was missing a wakeup type and failing to flush the interrupt correctly when using OPAL ICP Thanks to Benjamin Herrenschmidt" * tag 'powerpc-4.10-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/powernv: Properly set "host-ipi" on IPIs powerpc/powernv: Fix CPU hotplug to handle waking on HVI powerpc/mm/radix: Update ERAT flushes when invalidating TLB powerpc/mm: Fix spurrious segfaults on radix with autonuma
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Eric Dumazet authored
udp_ioctl(), as its name suggests, is used by UDP protocols, but is also used by L2TP :( L2TP should use its own handler, because it really does not look the same. SIOCINQ for instance should not assume UDP checksum or headers. Thanks to Andrey and syzkaller team for providing the report and a nice reproducer. While crashes only happen on recent kernels (after commit 7c13f97f ("udp: do fwd memory scheduling on dequeue")), this probably needs to be backported to older kernels. Fixes: 7c13f97f ("udp: do fwd memory scheduling on dequeue") Fixes: 85584672 ("udp: Fix udp_poll() and ioctl()") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Andrey Konovalov <andreyknvl@google.com> Acked-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Boris Ostrovsky authored
rx_refill_timer should be deleted as soon as we disconnect from the backend since otherwise it is possible for the timer to go off before we get to xennet_destroy_queues(). If this happens we may dereference queue->rx.sring which is set to NULL in xennet_disconnect_backend(). Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> CC: stable@vger.kernel.org Reviewed-by: Juergen Gross <jgross@suse.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Ralf Baechle authored
If a USB-to-serial adapter is unplugged, the driver re-initializes, with dev->hard_header_len and dev->addr_len set to zero, instead of the correct values. If then a packet is sent through the half-dead interface, the kernel will panic due to running out of headroom in the skb when pushing for the AX.25 headers resulting in this panic: [<c0595468>] (skb_panic) from [<c0401f70>] (skb_push+0x4c/0x50) [<c0401f70>] (skb_push) from [<bf0bdad4>] (ax25_hard_header+0x34/0xf4 [ax25]) [<bf0bdad4>] (ax25_hard_header [ax25]) from [<bf0d05d4>] (ax_header+0x38/0x40 [mkiss]) [<bf0d05d4>] (ax_header [mkiss]) from [<c041b584>] (neigh_compat_output+0x8c/0xd8) [<c041b584>] (neigh_compat_output) from [<c043e7a8>] (ip_finish_output+0x2a0/0x914) [<c043e7a8>] (ip_finish_output) from [<c043f948>] (ip_output+0xd8/0xf0) [<c043f948>] (ip_output) from [<c043f04c>] (ip_local_out_sk+0x44/0x48) This patch makes mkiss behave like the 6pack driver. 6pack does not panic. In 6pack.c sp_setup() (same function name here) the values for dev->hard_header_len and dev->addr_len are set to the same values as in my mkiss patch. [ralf@linux-mips.org: Massages original submission to conform to the usual standards for patch submissions.] Signed-off-by: Thomas Osterried <thomas@osterried.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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Kejian Yan authored
This patch fixes the device being used to DMA map skb->data. Erroneous device assignment causes the crash when SMMU is enabled. This happens during TX since buffer gets DMA mapped with device correspondign to net_device and gets unmapped using the device related to DSAF. Signed-off-by: Kejian Yan <yankejian@huawei.com> Reviewed-by: Yisen Zhuang <yisen.zhuang@huawei.com> Signed-off-by: Salil Mehta <salil.mehta@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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J. Bruce Fields authored
This patch incorrectly attempted nested mnt_want_write, and incorrectly disabled nfsd's owner override for truncate. We'll fix those problems and make another attempt soon, for the moment I think the safest is to revert. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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git://people.freedesktop.org/~airlied/linuxLinus Torvalds authored
Pull drm fixes from Dave Airlie: "This should be the final set of drm fixes for 4.10: one vmwgfx boot fix, one vc4 fix, and a few i915 fixes: * tag 'drm-fixes-for-v4.10-rc8' of git://people.freedesktop.org/~airlied/linux: drm: vc4: adapt to new behaviour of drm_crtc.c drm/i915: Always convert incoming exec offsets to non-canonical drm/i915: Remove overzealous fence warn on runtime suspend drm/i915/bxt: Add MST support when do DPLL calculation drm/i915: don't warn about Skylake CPU - KabyPoint PCH combo drm/i915: fix i915 running as dom0 under Xen drm/i915: Flush untouched framebuffers before display on !llc drm/i915: fix use-after-free in page_flip_completed() drm/vmwgfx: Fix depth input into drm_mode_legacy_fb_format
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Dave Airlie authored
Merge tag 'drm-intel-fixes-2017-02-09' of git://anongit.freedesktop.org/git/drm-intel into drm-fixes Hopefully final fixes for v4.10, about half of them stable material. * tag 'drm-intel-fixes-2017-02-09' of git://anongit.freedesktop.org/git/drm-intel: drm/i915: Always convert incoming exec offsets to non-canonical drm/i915: Remove overzealous fence warn on runtime suspend drm/i915/bxt: Add MST support when do DPLL calculation drm/i915: don't warn about Skylake CPU - KabyPoint PCH combo drm/i915: fix i915 running as dom0 under Xen drm/i915: Flush untouched framebuffers before display on !llc drm/i915: fix use-after-free in page_flip_completed()
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git://anongit.freedesktop.org/git/drm-miscDave Airlie authored
Last-minute vc4 fix for 4.10. * tag 'drm-misc-fixes-2017-02-09' of git://anongit.freedesktop.org/git/drm-misc: drm: vc4: adapt to new behaviour of drm_crtc.c
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- 09 Feb, 2017 22 commits
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Yendapally Reddy Dhananjaya Reddy authored
USB PHYs need the MDIO clock divisor enabled earlier to work. Initialize mdio clock divisor in probe function. The ext bus bit available in the same register will be used by mdio mux to enable external mdio. Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com> Fixes: ddc24ae1 ("net: phy: Broadcom iProc MDIO bus driver") Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Jon Mason <jon.mason@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Hangbin Liu authored
In function igmpv3/mld_add_delrec() we allocate pmc and put it in idev->mc_tomb, so we should free it when we don't need it in del_delrec(). But I removed kfree(pmc) incorrectly in latest two patches. Now fix it. Fixes: 24803f38 ("igmp: do not remove igmp souce list info when ...") Fixes: 1666d49e ("mld: do not remove mld souce list info when ...") Reported-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Ross Lagerwall authored
This fixes a crash when running out of grant refs when creating many queues across many netdevs. * If creating queues fails (i.e. there are no grant refs available), call xenbus_dev_fatal() to ensure that the xenbus device is set to the closed state. * If no queues are created, don't call xennet_disconnect_backend as netdev->real_num_tx_queues will not have been set correctly. * If setup_netfront() fails, ensure that all the queues created are cleaned up, not just those that have been set up. * If any queues were set up and an error occurs, call xennet_destroy_queues() to clean up the napi context. * If any fatal error occurs, unregister and destroy the netdev to avoid leaving around a half setup network device. Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Stefan Brüns says: ==================== Fixes for sierra_net driver When trying to initiate a dual-stack (ipv4v6) connection, a MC7710, FW version SWI9200X_03.05.24.00ap answers with an unsupported LSI. Add support for this LSI. Also the link_type should be ignored when going idle, otherwise the modem is stuck in a bad link state. Tested on MC7710, T-Mobile DE, APN internet.telekom, IPv4v6 PDP type. Both IPv4 and IPv6 connections work. v2: Do not overwrite protocol field in rx_fixup v3: Remove leftover struct ethhdr *eth declaration ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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Stefan Brüns authored
When the context is deactivated, the link_type is set to 0xff, which triggers a warning message, and results in a wrong link status, as the LSI is ignored. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
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Stefan Brüns authored
If a context is configured as dualstack ("IPv4v6"), the modem indicates the context activation with a slightly different indication message. The dual-stack indication omits the link_type (IPv4/v6) and adds additional address fields. IPv6 LSIs are identical to IPv4 LSIs, but have a different link type. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
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WANG Cong authored
Dmitry reported a kernel warning: WARNING: CPU: 3 PID: 2936 at net/kcm/kcmsock.c:627 kcm_write_msgs+0x12e3/0x1b90 net/kcm/kcmsock.c:627 CPU: 3 PID: 2936 Comm: a.out Not tainted 4.10.0-rc6+ #209 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:15 [inline] dump_stack+0x2ee/0x3ef lib/dump_stack.c:51 panic+0x1fb/0x412 kernel/panic.c:179 __warn+0x1c4/0x1e0 kernel/panic.c:539 warn_slowpath_null+0x2c/0x40 kernel/panic.c:582 kcm_write_msgs+0x12e3/0x1b90 net/kcm/kcmsock.c:627 kcm_sendmsg+0x163a/0x2200 net/kcm/kcmsock.c:1029 sock_sendmsg_nosec net/socket.c:635 [inline] sock_sendmsg+0xca/0x110 net/socket.c:645 sock_write_iter+0x326/0x600 net/socket.c:848 new_sync_write fs/read_write.c:499 [inline] __vfs_write+0x483/0x740 fs/read_write.c:512 vfs_write+0x187/0x530 fs/read_write.c:560 SYSC_write fs/read_write.c:607 [inline] SyS_write+0xfb/0x230 fs/read_write.c:599 entry_SYSCALL_64_fastpath+0x1f/0xc2 when calling syscall(__NR_write, sock2, 0x208aaf27ul, 0x0ul) on a KCM seqpacket socket. It appears that kcm_sendmsg() does not handle len==0 case correctly, which causes an empty skb is allocated and queued. Fix this by skipping the skb allocation for len==0 case. Reported-by: Dmitry Vyukov <dvyukov@google.com> Cc: Tom Herbert <tom@herbertland.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Vineeth Remanan Pillai authored
The commit 90c311b0 ("xen-netfront: Fix Rx stall during network stress and OOM") caused the refill timer to be triggerred almost on all invocations of xennet_alloc_rx_buffers for certain workloads. This reworks the fix by reverting to the old behaviour and taking into consideration the skb allocation failure. Refill timer is now triggered on insufficient requests or skb allocation failure. Signed-off-by: Vineeth Remanan Pillai <vineethp@amazon.com> Fixes: 90c311b0 (xen-netfront: Fix Rx stall during network stress and OOM) Reported-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pendingLinus Torvalds authored
Pull SCSI target fixes from Nicholas Bellinger: "This target series for v4.10 contains fixes which address a few long-standing bugs that DATERA's QA + automation teams have uncovered while putting v4.1.y target code into production usage. We've been running the top three in our nightly automated regression runs for the last two months, and the COMPARE_AND_WRITE fix Mr. Gary Guo has been manually verifying against a four node ESX cluster this past week. Note all of them have CC' stable tags. Summary: - Fix a bug with ESX EXTENDED_COPY + SAM_STAT_RESERVATION_CONFLICT status, where target_core_xcopy.c logic was incorrectly returning SAM_STAT_CHECK_CONDITION for all non SAM_STAT_GOOD cases (Nixon Vincent) - Fix a TMR LUN_RESET hung task bug while other in-flight TMRs are being aborted, before the new one had been dispatched into tmr_wq (Rob Millner) - Fix a long standing double free OOPs, where a dynamically generated 'demo-mode' NodeACL has multiple sessions associated with it, and the /sys/kernel/config/target/$FABRIC/$WWN/ subsequently disables demo-mode, but never converts the dynamic ACL into a explicit ACL (Rob Millner) - Fix a long standing reference leak with ESX VAAI COMPARE_AND_WRITE when the second phase WRITE COMMIT command fails, resulting in CHECK_CONDITION response never being sent and se_cmd->cmd_kref never reaching zero (Gary Guo) Beyond these items on v4.1.y we've reproduced, fixed, and run through our regression test suite using iscsi-target exports, there are two additional outstanding list items: - Remove a >= v4.2 RCU conversion BUG_ON that would trigger when dynamic node NodeACLs where being converted to explicit NodeACLs. The patch drops the BUG_ON to follow how pre RCU conversion worked for this special case (Benjamin Estrabaud) - Add ibmvscsis target_core_fabric_ops->max_data_sg_nent assignment to match what IBM's Virtual SCSI hypervisor is already enforcing at transport layer. (Bryant Ly + Steven Royer)" * git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: ibmvscsis: Add SGL limit target: Fix COMPARE_AND_WRITE ref leak for non GOOD status target: Fix multi-session dynamic se_node_acl double free OOPs target: Fix early transport_generic_handle_tmr abort scenario target: Use correct SCSI status during EXTENDED_COPY exception target: Don't BUG_ON during NodeACL dynamic -> explicit conversion
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Florian Fainelli authored
The Generic PHY drivers gets assigned after we checked that the current PHY driver is NULL, so we need to check a few things before we can safely dereference d->driver. This would be causing a NULL deference to occur when a system binds to the Generic PHY driver. Update phy_attach_direct() to do the following: - grab the driver module reference after we have assigned the Generic PHY drivers accordingly, and remember we came from the generic PHY path - update the error path to clean up the module reference in case the Generic PHY probe function fails - split the error path involving phy_detacht() to avoid double free/put since phy_detach() does all the clean up - finally, have phy_detach() drop the module reference count before we call device_release_driver() for the Generic PHY driver case Fixes: cafe8df8 ("net: phy: Fix lack of reference count on PHY driver") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linuxLinus Torvalds authored
Pull pstore fix from Kees Cook: "Fix pstore regression (boot Oops) when ftrace disabled, from Brian Norris" * tag 'pstore-v4.10-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: pstore: don't OOPS when there are no ftrace zones
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/inputLinus Torvalds authored
Pull input fixes from Dmitry Torokhov: "A fix for a crash in uinput, and a fix for build errors when HID-RMI is built-in but SERIO is a module" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: synaptics-rmi4 - select 'SERIO' when needed Input: uinput - fix crash when mixing old and new init style
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Brian Norris authored
We'll OOPS in ramoops_get_next_prz() if the platform didn't ask for any ftrace zones (i.e., cxt->fprzs will be NULL). Let's just skip this entire FTRACE section if there's no 'fprzs'. Regression seen on a coreboot/depthcharge-based Chromebook. Fixes: 2fbea82b ("pstore: Merge per-CPU ftrace records into one") Cc: Joel Fernandes <joelaf@google.com> Cc: Kees Cook <keescook@chromium.org> Signed-off-by: Brian Norris <briannorris@chromium.org> Signed-off-by: Kees Cook <keescook@chromium.org>
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git://github.com/awilliam/linux-vfioLinus Torvalds authored
Pull VFIO fix from Alex Williamson: "Fix regression in attaching groups to existing container for SPAPR IOMMU backend (Alexey Kardashevskiy)" * tag 'vfio-v4.10-final' of git://github.com/awilliam/linux-vfio: vfio/spapr_tce: Set window when adding additional groups to container
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git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds authored
Pull ARM fixes from Russell King: "A couple more fixes for 4.10: - fix addressing the short regset write issue (Dave Martin) - fix for LPAE systems which leave a pending imprecise data abort before entering the kernel (Alexander Sverdlin)" * 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 8643/3: arm/ptrace: Preserve previous registers for short regset write ARM: 8642/1: LPAE: catch pending imprecise abort on unmask
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Ricardo Ribalda authored
SMBSLVCNT must be protected with the piix4_mutex_sb800 in order to avoid multiple buses accessing to the semaphore at the same time. Fixes: 701dc207 ("i2c: piix4: Avoid race conditions with IMC") Reported-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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Ricardo Ribalda authored
Since '701dc207 ("i2c: piix4: Avoid race conditions with IMC")' we are using the SMBSLVCNT register at offset 0x8. We need to request it. Fixes: 701dc207 ("i2c: piix4: Avoid race conditions with IMC") Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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Hui Wang authored
Without this change, the HDMI/DP codec will be recognised as a generic codec, and there is no sound when playing through this codec. As suggested by NVidia side, after adding the new ID in the driver, the sound playing works well. Cc: <stable@vger.kernel.org> Signed-off-by: Hui Wang <hui.wang@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Benjamin Herrenschmidt authored
Otherwise KVM will fail to pass them through to the host Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Benjamin Herrenschmidt authored
The IPIs come in as HVI not EE, so we need to test the appropriate SRR1 bits. The encoding is such that it won't have false positives on P7 and P8 so we can just test it like that. We also need to handle the icp-opal variant of the flush. Fixes: d7436188 ("powerpc/xics: Add ICP OPAL backend") Cc: stable@vger.kernel.org # v4.8+ Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Benjamin Herrenschmidt authored
Three tiny changes to the ERAT flushing logic: First don't make it depend on DD1. It hasn't been decided yet but we might run DD2 in a mode that also requires explicit flushes for performance reasons so make it unconditional. We also add a missing isync, and finally remove the flush from _tlbiel_va as it is only necessary for congruence-class invalidations (PID, LPID and full TLB), not targetted invalidations. Fixes: 96ed1fe5 ("powerpc/mm/radix: Invalidate ERAT on tlbiel for POWER9 DD1") Cc: stable@vger.kernel.org # v4.9+ Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Linus Torvalds authored
This reverts commit 020eb3da. Gabriel C reports that it causes his machine to not boot, and we haven't tracked down the reason for it yet. Since the bug it fixes has been around for a longish time, we're better off reverting the fix for now. Gabriel says: "It hangs early and freezes with a lot RCU warnings. I bisected it down to : > Ruslan Ruslichenko (1): > x86/ioapic: Restore IO-APIC irq_chip retrigger callback Reverting this one fixes the problem for me.. The box is a PRIMERGY TX200 S5 , 2 socket , 2 x E5520 CPU(s) installed" and Ruslan and Thomas are currently stumped. Reported-and-bisected-by: Gabriel C <nix.or.die@gmail.com> Cc: Ruslan Ruslichenko <rruslich@cisco.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: stable@kernel.org # for the backport of the original commit Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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