- 20 Oct, 2015 40 commits
-
-
Chuck Lever authored
commit 9d11b51c upstream. The Linux NFS server returns garbage in the data payload of inline NFS/RDMA READ replies. These are READs of under 1000 bytes or so where the client has not provided either a reply chunk or a write list. The NFS server delivers the data payload for an NFS READ reply to the transport in an xdr_buf page list. If the NFS client did not provide a reply chunk or a write list, send_reply() is supposed to set up a separate sge for the page containing the READ data, and another sge for XDR padding if needed, then post all of the sges via a single SEND Work Request. The problem is send_reply() does not advance through the xdr_buf when setting up scatter/gather entries for SEND WR. It always calls dma_map_xdr with xdr_off set to zero. When there's more than one sge, dma_map_xdr() sets up the SEND sge's so they all point to the xdr_buf's head. The current Linux NFS/RDMA client always provides a reply chunk or a write list when performing an NFS READ over RDMA. Therefore, it does not exercise this particular case. The Linux server has never had to use more than one extra sge for building RPC/RDMA replies with a Linux client. However, an NFS/RDMA client _is_ allowed to send small NFS READs without setting up a write list or reply chunk. The NFS READ reply fits entirely within the inline reply buffer in this case. This is perhaps a more efficient way of performing NFS READs that the Linux NFS/RDMA client may some day adopt. Fixes: b432e6b3 ('svcrdma: Change DMA mapping logic to . . .') BugLink: https://bugzilla.linux-nfs.org/show_bug.cgi?id=285Signed-off-by:
Chuck Lever <chuck.lever@oracle.com> Signed-off-by:
J. Bruce Fields <bfields@redhat.com> Signed-off-by:
Kamal Mostafa <kamal@canonical.com>
-
Krzysztof Kozlowski authored
commit 5f09a5cb upstream. During probe the regulator (if present) was enabled but not disabled in case of failure. So an unsuccessful probe lead to enabling the regulator which was actually not needed because the device was not enabled. Additionally each deferred probe lead to increase of regulator enable count so it would not be effectively disabled during removal of the device. Test HW: Exynos4412 - Trats2 board Signed-off-by:
Krzysztof Kozlowski <k.kozlowski@samsung.com> Fixes: 498d22f6 ("thermal: exynos: Support for TMU regulator defined at device tree") Reviewed-by:
Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by:
Lukasz Majewski <l.majewski@samsung.com> Tested-by:
Eduardo Valentin <edubezval@gmail.com> [ luis: backported to 3.16: adjusted context ] Signed-off-by:
Luis Henriques <luis.henriques@canonical.com> Signed-off-by:
-
Florian Fainelli authored
commit 03679a14 upstream. The macro to write 64-bits quantities to the 32-bits register swapped the value and offsets arguments, we want to preserve the ordering of the arguments with respect to how writel() is implemented for instance: value first, offset/base second. Fixes: 246d7f77 ("net: dsa: add Broadcom SF2 switch driver") Signed-off-by:
Florian Fainelli <f.fainelli@gmail.com> Reviewed-by:
Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
-
Daniel Borkmann authored
commit 592867bf upstream. We may already have gotten a proper fd struct through fdget(), so whenever we return at the end of an map operation, we need to call fdput(). However, each map operation from syscall side first probes CHECK_ATTR() to verify that unused fields in the bpf_attr union are zero. In case of malformed input, we return with error, but the lookup to the map_fd was already performed at that time, so that we return without an corresponding fdput(). Fix it by performing an fdget() only right before bpf_map_get(). The fdget() invocation on maps in the verifier is not affected. Fixes: db20fd2b ("bpf: add lookup/update/delete/iterate methods to BPF maps") Signed-off-by:
Daniel Borkmann <daniel@iogearbox.net> Acked-by:
Alexei Starovoitov <ast@plumgrid.com> Signed-off-by:
-
Eric Dumazet authored
commit c8219906 upstream. In commit f341861f ("task_work: add a scheduling point in task_work_run()") I fixed a latency problem adding a cond_resched() call. Later, commit ac3d0da8 added yet another loop to reverse a list, bringing back the latency spike : I've seen in some cases this loop taking 275 ms, if for example a process with 2,000,000 files is killed. We could add yet another cond_resched() in the reverse loop, or we can simply remove the reversal, as I do not think anything would depend on order of task_work_add() submitted works. Fixes: ac3d0da8 ("task_work: Make task_work_add() lockless") Signed-off-by:
Eric Dumazet <edumazet@google.com> Reported-by:
Maciej Żenczykowski <maze@google.com> Acked-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
-
Haggai Eran authored
commit 11d74804 upstream. The mlx5_ib_reg_user_mr() function will attempt to call clean_mr() in its error flow even though there is never a case where the error flow occurs with a valid MR pointer to destroy. Remove the clean_mr() call and the incorrect comment above it. Fixes: b4cfe447 ("IB/mlx5: Implement on demand paging by adding support for MMU notifiers") Cc: Eli Cohen <eli@mellanox.com> Signed-off-by:
Haggai Eran <haggaie@mellanox.com> Reviewed-by:
Sagi Grimberg <sagig@mellanox.com> Signed-off-by:
Doug Ledford <dledford@redhat.com> Signed-off-by:
-
Viresh Kumar authored
commit a2022001 upstream. Tolerance applies on both sides of the target voltage, i.e. both min and max sides. But while checking if a voltage is supported by the regulator or not, we haven't taken care of tolerance on the lower side. Fix that. Cc: Lucas Stach <l.stach@pengutronix.de> Fixes: 045ee45c ("cpufreq: cpufreq-dt: disable unsupported OPPs") Signed-off-by:
Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by:
Lucas Stach <l.stach@pengutronix.de> Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by:
-
Daniel Borkmann authored
commit e41b0bed upstream. We previously register IPPROTO_ROUTING offload under inet6_add_offload(), but in error path, we try to unregister it with inet_del_offload(). This doesn't seem correct, it should actually be inet6_del_offload(), also ipv6_exthdrs_offload_exit() from that commit seems rather incorrect (it also uses rthdr_offload twice), but it got removed entirely later on. Fixes: 3336288a ("ipv6: Switch to using new offload infrastructure.") Signed-off-by:
-
Daniel Borkmann authored
commit b382c086 upstream. diag socket's sock_diag_put_filterinfo() dumps classic BPF programs upon request to user space (ss -0 -b). However, native eBPF programs attached to sockets (SO_ATTACH_BPF) cannot be dumped with this method: Their orig_prog is always NULL. However, sock_diag_put_filterinfo() unconditionally tries to access its filter length resp. wants to copy the filter insns from there. Internal cBPF to eBPF transformations attached to sockets don't have this issue, as orig_prog state is kept. It's currently only used by packet sockets. If we would want to add native eBPF support in the future, this needs to be done through a different attribute than PACKET_DIAG_FILTER to not confuse possible user space disassemblers that work on diag data. Fixes: 89aa0758 ("net: sock: allow eBPF programs to be attached to sockets") Signed-off-by:
Nicolas Dichtel <nicolas.dichtel@6wind.com> Acked-by:
-
Lukas Wunner authored
commit 69f92f67 upstream. Commit 92122789 ("drm/i915: preserve SSC if previously set v3") added code to intel_modeset_gem_init to override the SSC status read from VBT with the SSC status set by BIOS. However, intel_modeset_gem_init is invoked *after* intel_modeset_init, which calls intel_setup_outputs, which *modifies* SSC status by way of intel_init_pch_refclk. So unlike advertised, intel_modeset_gem_init doesn't preserve the SSC status set by BIOS but whatever intel_init_pch_refclk decided on. This is a problem on dual gpu laptops such as the MacBook Pro which require either a handler to switch DDC lines, or the discrete gpu to proxy DDC/AUX communication: Both the handler and the discrete gpu may initialize after the i915 driver, and consequently, an LVDS connector may initially seem disconnected and the SSC therefore is disabled by intel_init_pch_refclk, but on reprobe the connector may turn out to be connected and the SSC must then be enabled. Due to 92122789 however, the SSC is not enabled on reprobe since it is assumed BIOS disabled it while in fact it was disabled by intel_init_pch_refclk. Also, because the SSC status is preserved so late, the preserved value only ever gets used on resume but not on panel initialization: intel_modeset_init calls intel_init_display which indirectly calls intel_panel_use_ssc via multiple subroutines, *before* the BIOS value overrides the VBT value in intel_modeset_gem_init (intel_panel_use_ssc is the sole user of dev_priv->vbt.lvds_use_ssc). Fix this by moving the code introduced by 92122789 from intel_modeset_gem_init to intel_modeset_init before the invocation of intel_setup_outputs and intel_init_display. Add a DRM_DEBUG_KMS as suggested way back by Jani: http://lists.freedesktop.org/archives/intel-gfx/2014-June/046666.html Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=88861 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=61115Tested-by:
Paul Hordiienko <pvt.gord@gmail.com> [MBP 6,2 2010 intel ILK + nvidia GT216 pre-retina] Tested-by:
William Brown <william@blackhats.net.au> [MBP 8,2 2011 intel SNB + amd turks pre-retina] Tested-by:
Lukas Wunner <lukas@wunner.de> [MBP 9,1 2012 intel IVB + nvidia GK107 pre-retina] Tested-by:
Bruno Bierbaumer <bruno@bierbaumer.net> [MBP 11,3 2013 intel HSW + nvidia GK107 retina -- work in progress] Fixes: 92122789 ("drm/i915: preserve SSC if previously set v3") Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by:
Jani Nikula <jani.nikula@intel.com> Signed-off-by:
-
Jialing Fu authored
commit 71f8a4b8 upstream. The following panic is captured in ker3.14, but the issue still exists in latest kernel. --------------------------------------------------------------------- [ 20.738217] c0 3136 (Compiler) Unable to handle kernel NULL pointer dereference at virtual address 00000578 ...... [ 20.738499] c0 3136 (Compiler) PC is at _raw_spin_lock_irqsave+0x24/0x60 [ 20.738527] c0 3136 (Compiler) LR is at _raw_spin_lock_irqsave+0x20/0x60 [ 20.740134] c0 3136 (Compiler) Call trace: [ 20.740165] c0 3136 (Compiler) [<ffffffc0008ee900>] _raw_spin_lock_irqsave+0x24/0x60 [ 20.740200] c0 3136 (Compiler) [<ffffffc0000dd024>] __wake_up+0x1c/0x54 [ 20.740230] c0 3136 (Compiler) [<ffffffc000639414>] mmc_wait_data_done+0x28/0x34 [ 20.740262] c0 3136 (Compiler) [<ffffffc0006391a0>] mmc_request_done+0xa4/0x220 [ 20.740314] c0 3136 (Compiler) [<ffffffc000656894>] sdhci_tasklet_finish+0xac/0x264 [ 20.740352] c0 3136 (Compiler) [<ffffffc0000a2b58>] tasklet_action+0xa0/0x158 [ 20.740382] c0 3136 (Compiler) [<ffffffc0000a2078>] __do_softirq+0x10c/0x2e4 [ 20.740411] c0 3136 (Compiler) [<ffffffc0000a24bc>] irq_exit+0x8c/0xc0 [ 20.740439] c0 3136 (Compiler) [<ffffffc00008489c>] handle_IRQ+0x48/0xac [ 20.740469] c0 3136 (Compiler) [<ffffffc000081428>] gic_handle_irq+0x38/0x7c ---------------------------------------------------------------------- Because in SMP, "mrq" has race condition between below two paths: path1: CPU0: <tasklet context> static void mmc_wait_data_done(struct mmc_request *mrq) { mrq->host->context_info.is_done_rcv = true; // // If CPU0 has just finished "is_done_rcv = true" in path1, and at // this moment, IRQ or ICache line missing happens in CPU0. // What happens in CPU1 (path2)? // // If the mmcqd thread in CPU1(path2) hasn't entered to sleep mode: // path2 would have chance to break from wait_event_interruptible // in mmc_wait_for_data_req_done and continue to run for next // mmc_request (mmc_blk_rw_rq_prep). // // Within mmc_blk_rq_prep, mrq is cleared to 0. // If below line still gets host from "mrq" as the result of // compiler, the panic happens as we traced. wake_up_interruptible(&mrq->host->context_info.wait); } path2: CPU1: <The mmcqd thread runs mmc_queue_thread> static int mmc_wait_for_data_req_done(... { ... while (1) { wait_event_interruptible(context_info->wait, (context_info->is_done_rcv || context_info->is_new_req)); static void mmc_blk_rw_rq_prep(... { ... memset(brq, 0, sizeof(struct mmc_blk_request)); This issue happens very coincidentally; however adding mdelay(1) in mmc_wait_data_done as below could duplicate it easily. static void mmc_wait_data_done(struct mmc_request *mrq) { mrq->host->context_info.is_done_rcv = true; + mdelay(1); wake_up_interruptible(&mrq->host->context_info.wait); } At runtime, IRQ or ICache line missing may just happen at the same place of the mdelay(1). This patch gets the mmc_context_info at the beginning of function, it can avoid this race condition. Signed-off-by:
Jialing Fu <jlfu@marvell.com> Tested-by:
Shawn Lin <shawn.lin@rock-chips.com> Fixes: 2220eedf ("mmc: fix async request mechanism ....") Signed-off-by:
Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by:
-
Yishai Hadas authored
commit 35d4a0b6 upstream. Fixes: 2a72f212 ("IB/uverbs: Remove dev_table") Before this commit there was a device look-up table that was protected by a spin_lock used by ib_uverbs_open and by ib_uverbs_remove_one. When it was dropped and container_of was used instead, it enabled the race with remove_one as dev might be freed just after: dev = container_of(inode->i_cdev, struct ib_uverbs_device, cdev) but before the kref_get. In addition, this buggy patch added some dead code as container_of(x,y,z) can never be NULL and so dev can never be NULL. As a result the comment above ib_uverbs_open saying "the open method will either immediately run -ENXIO" is wrong as it can never happen. The solution follows Jason Gunthorpe suggestion from below URL: https://www.mail-archive.com/linux-rdma@vger.kernel.org/msg25692.html cdev will hold a kref on the parent (the containing structure, ib_uverbs_device) and only when that kref is released it is guaranteed that open will never be called again. In addition, fixes the active count scheme to use an atomic not a kref to prevent WARN_ON as pointed by above comment from Jason. Signed-off-by:
Yishai Hadas <yishaih@mellanox.com> Signed-off-by:
Shachar Raindel <raindel@mellanox.com> Reviewed-by:
Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by:
-
Sagi Grimberg authored
commit 8d5944d8 upstream. If iser_initialize_task_headers() routine failed before dma mapping, we should not attempt to unmap in cleanup_task(). Fixes: 7414dde0 (IB/iser: Fix race between iser connection ...) Signed-off-by:
-
Sagi Grimberg authored
commit d1673905 upstream. Since commit "IB/iser: Fix race between iser connection teardown..." iser_initialize_task_headers() might fail, so we need to check that. Fixes: 7414dde0 (IB/iser: Fix race between iser connection ...) Signed-off-by:
-
Noa Osherovich authored
commit 5e99b139 upstream. The mlx4 IB driver implementation for ib_query_ah used a wrong offset (28 instead of 29) when link type is Ethernet. Fixed to use the correct one. Fixes: fa417f7b ('IB/mlx4: Add support for IBoE') Signed-off-by:
Shani Michaeli <shanim@mellanox.com> Signed-off-by:
Noa Osherovich <noaos@mellanox.com> Signed-off-by:
Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by:
-
Jack Morgenstein authored
commit 2b135db3 upstream. The pkey mapping for RoCE must remain the default mapping: VFs: virtual index 0 = mapped to real index 0 (0xFFFF) All others indices: mapped to a real pkey index containing an invalid pkey. PF: virtual index i = real index i. Don't allow users to change these mappings using files found in sysfs. Fixes: c1e7e466 ('IB/mlx4: Add iov directory in sysfs under the ib device') Signed-off-by:
Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by:
-
Jack Morgenstein authored
commit 90c1d8b6 upstream. send_mad_to_wire takes the same spinlock that is taken in the interrupt context. Therefore, it needs irqsave/restore. Fixes: b9c5d6a6 ('IB/mlx4: Add multicast group (MCG) paravirtualization for SR-IOV') Signed-off-by:
-
Axel Lin authored
commit 2c3f4b97 upstream. All the callers assume devm_spear_pcm_platform_register is a devm_ API, so use devm_snd_dmaengine_pcm_register in devm_spear_pcm_platform_register. Fixes: e1771bcf ("ASoC: SPEAr: remove custom DMA alloc compat function") Signed-off-by:
Axel Lin <axel.lin@ingics.com> Signed-off-by:
Mark Brown <broonie@kernel.org> Signed-off-by:
-
Kan Liang authored
commit 601083cf upstream. print_aggr() fails to print per-core/per-socket statistics after commit 582ec082 ("perf stat: Fix per-socket output bug for uncore events") if events have differnt cpus. Because in print_aggr(), aggr_get_id needs index (not cpu id) to find core/pkg id. Also, evsel cpu maps should be used to get aggregated id. Here is an example: Counting events cycles,uncore_imc_0/cas_count_read/. (Uncore event has cpumask 0,18) $ perf stat -e cycles,uncore_imc_0/cas_count_read/ -C0,18 --per-core sleep 2 Without this patch, it failes to get CPU 18 result. Performance counter stats for 'CPU(s) 0,18': S0-C0 1 7526851 cycles S0-C0 1 1.05 MiB uncore_imc_0/cas_count_read/ S1-C0 0 <not counted> cycles S1-C0 0 <not counted> MiB uncore_imc_0/cas_count_read/ With this patch, it can get both CPU0 and CPU18 result. Performance counter stats for 'CPU(s) 0,18': S0-C0 1 6327768 cycles S0-C0 1 0.47 MiB uncore_imc_0/cas_count_read/ S1-C0 1 330228 cycles S1-C0 1 0.29 MiB uncore_imc_0/cas_count_read/ Signed-off-by:
Kan Liang <kan.liang@intel.com> Acked-by:
Jiri Olsa <jolsa@kernel.org> Acked-by:
Stephane Eranian <eranian@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Fixes: 582ec082 ("perf stat: Fix per-socket output bug for uncore events") Link: http://lkml.kernel.org/r/1435820925-51091-1-git-send-email-kan.liang@intel.comSigned-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by:
-
Jisheng Zhang authored
commit 0dafa60e upstream. commit bb8175a8 ("mmc: sdhci: clarify DDR timing mode between SD-UHS and eMMC") added MMC_DDR52 as eMMC's DDR mode to be distinguished from SD-UHS, but it missed setting driver type for MMC_DDR52 timing mode. So sometimes we get the following error on Marvell BG2Q DMP board: [ 1.559598] mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00 [ 1.569314] mmcblk0: retrying using single block read [ 1.575676] mmcblk0: error -84 transferring data, sector 2, nr 6, cmd response 0x900, card status 0x0 [ 1.585202] blk_update_request: I/O error, dev mmcblk0, sector 2 [ 1.591818] mmcblk0: error -84 transferring data, sector 3, nr 5, cmd response 0x900, card status 0x0 [ 1.601341] blk_update_request: I/O error, dev mmcblk0, sector 3 This patches fixes this by adding the missing driver type setting. Fixes: bb8175a8 ("mmc: sdhci: clarify DDR timing mode ...") Signed-off-by:
Jisheng Zhang <jszhang@marvell.com> Signed-off-by:
-
Michal Kazior authored
commit 5e55e3cb upstream. The function returns 1 when DMA mapping fails. The driver would return bogus values and could possibly confuse itself if DMA failed. Fixes: 767d34fc ("ath10k: remove DMA mapping wrappers") Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Michal Kazior <michal.kazior@tieto.com> Signed-off-by:
Kalle Valo <kvalo@qca.qualcomm.com> Signed-off-by:
-
Paul Mackerras authored
commit 1e5bf454 upstream. The reference (R) and change (C) bits in a HPT entry can be set by hardware at any time up until the HPTE is invalidated and the TLB invalidation sequence has completed. This means that when removing a HPTE, we need to read the HPTE after the invalidation sequence has completed in order to obtain reliable values of R and C. The code in kvmppc_do_h_remove() used to do this. However, commit 6f22bd32 ("KVM: PPC: Book3S HV: Make HTAB code LE host aware") removed the read after invalidation as a side effect of other changes. This restores the read of the HPTE after invalidation. The user-visible effect of this bug would be that when migrating a guest, there is a small probability that a page modified by the guest and then unmapped by the guest might not get re-transmitted and thus the destination might end up with a stale copy of the page. Fixes: 6f22bd32Signed-off-by:
Paul Mackerras <paulus@samba.org> Signed-off-by:
Alexander Graf <agraf@suse.de> Signed-off-by:
-
Scott Feldman authored
commit eb4cb851 upstream. .maxtype should match .policy. Probably just been getting lucky here because IFLA_BRPORT_MAX > IFLA_BR_MAX. Fixes: 13323516 ("bridge: implement rtnl_link_ops->changelink") Signed-off-by:
Scott Feldman <sfeldma@gmail.com> Signed-off-by:
-
Antoine Ténart authored
commit bc3e00f0 upstream. When keeping the configuration set by the bootloader (by using the marvell,nand-keep-config property), the pxa3xx_nand_detect_config() function is called and set the chunk size to 512 as a default value if NDCR_PAGE_SZ is not set. In the other case, when not keeping the bootloader configuration, no chunk size is set. Fix this by adding a default chunk size of 512. Fixes: 70ed8523 ("mtd: nand: pxa3xx: Introduce multiple page I/O support") Signed-off-by:
Antoine Tenart <antoine.tenart@free-electrons.com> Acked-by:
Robert Jarzmik <robert.jarzmik@free> Signed-off-by:
Brian Norris <computersforpeace@gmail.com> Signed-off-by:
-
Michael Ellerman authored
commit 74b5037b upstream. The powerpc kernel can be built to have either a 4K PAGE_SIZE or a 64K PAGE_SIZE. However when built with a 4K PAGE_SIZE there is an additional config option which can be enabled, PPC_HAS_HASH_64K, which means the kernel also knows how to hash a 64K page even though the base PAGE_SIZE is 4K. This is used in one obscure configuration, to support 64K pages for SPU local store on the Cell processor when the rest of the kernel is using 4K pages. In this configuration, pte_pagesize_index() is defined to just pass through its arguments to get_slice_psize(). However pte_pagesize_index() is called for both user and kernel addresses, whereas get_slice_psize() only knows how to handle user addresses. This has been broken forever, however until recently it happened to work. That was because in get_slice_psize() the large kernel address would cause the right shift of the slice mask to return zero. However in commit 7aa0727f ("powerpc/mm: Increase the slice range to 64TB"), the get_slice_psize() code was changed so that instead of a right shift we do an array lookup based on the address. When passed a kernel address this means we index way off the end of the slice array and return random junk. That is only fatal if we happen to hit something non-zero, but when we do return a non-zero value we confuse the MMU code and eventually cause a check stop. This fix is ugly, but simple. When we're called for a kernel address we return 4K, which is always correct in this configuration, otherwise we use the slice mask. Fixes: 7aa0727f ("powerpc/mm: Increase the slice range to 64TB") Reported-by:
Cyril Bur <cyrilbur@gmail.com> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au> Reviewed-by:
Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by:
-
Linus Lüssing authored
commit 53cf037b upstream. The two commits noted below added calls to ip_hdr() and ipv6_hdr(). They need a correctly set skb network header. Unfortunately we cannot rely on the device drivers to set it for us. Therefore setting it in the beginning of the according ndo_start_xmit handler. Fixes: 1d8ab8d3 ("batman-adv: Modified forwarding behaviour for multicast packets") Fixes: ab49886e ("batman-adv: Add IPv4 link-local/IPv6-ll-all-nodes multicast support") 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> Signed-off-by:
-
Arnaldo Carvalho de Melo authored
commit e8e6d37e upstream. When we introduce a new sort key, we need to update the hists__calc_col_len() function accordingly, otherwise the width will be limited to strlen(header). We can't update it when obtaining a line value for a column (for instance, in sort__srcline_cmp()), because we reset it all when doing a resort (see hists__output_recalc_col_len()), so we need to, from what is in the hist_entry fields, set each of the column widths. Cc: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: Jiri Olsa <jolsa@kernel.org> Fixes: 409a8be6 ("perf tools: Add sort by src line/number") Link: http://lkml.kernel.org/n/tip-jgbe0yx8v1gs89cslr93pvz2@git.kernel.orgSigned-off-by:
-
Paul Bolle authored
commit fe2b5921 upstream. wf_unregister_client() increments the client count when a client unregisters. That is obviously incorrect. Decrement that client count instead. Fixes: 75722d39 ("[PATCH] ppc64: Thermal control for SMU based machines") Signed-off-by:
Paul Bolle <pebolle@tiscali.nl> Signed-off-by:
-
Dan Carpenter authored
commit 5feb5d20 upstream. There is an "&&" vs "||" typo here so this loops 3000 times or if we get unlucky it could loop forever. Fixes: ceaa0a6e ('usb: gadget: m66592-udc: add support for TEST_MODE') Signed-off-by:
Felipe Balbi <balbi@ti.com> Signed-off-by:
-
Dan Carpenter authored
commit 3294bee8 upstream. The ">" should be ">=" or we end up reading beyond the end of the array. Fixes: 6e973d2c ('clk: vexpress: Add separate SP810 driver') Signed-off-by:
Pawel Moll <pawel.moll@arm.com> Signed-off-by:
Stephen Boyd <sboyd@codeaurora.org> Signed-off-by:
-
Jan Kara authored
commit 841df7df upstream. Commit 6f6a6fda "jbd2: fix ocfs2 corrupt when updating journal superblock fails" changed jbd2_cleanup_journal_tail() to return EIO when the journal is aborted. That makes logic in jbd2_log_do_checkpoint() bail out which is fine, except that jbd2_journal_destroy() expects jbd2_log_do_checkpoint() to always make a progress in cleaning the journal. Without it jbd2_journal_destroy() just loops in an infinite loop. Fix jbd2_journal_destroy() to cleanup journal checkpoint lists of jbd2_log_do_checkpoint() fails with error. Reported-by:
Eryu Guan <guaneryu@gmail.com> Tested-by:
Jan Kara <jack@suse.com> Signed-off-by:
Theodore Ts'o <tytso@mit.edu> Signed-off-by:
-
Stephen Boyd authored
commit d7a304e9 upstream. The other ce clocks have the flag set, but ce1 doesn't, so clk_set_rate() doesn't propagate up the tree to the ce1_src_clk. Set the flag as this is supported. Reported-by:
Bjorn Andersson <bjorn.andersson@sonymobile.com> Tested-by:
-
Thomas Huth authored
commit 1c2cb594 upstream. The EPOW interrupt handler uses rtas_get_sensor(), which in turn uses rtas_busy_delay() to wait for RTAS becoming ready in case it is necessary. But rtas_busy_delay() is annotated with might_sleep() and thus may not be used by interrupts handlers like the EPOW handler! This leads to the following BUG when CONFIG_DEBUG_ATOMIC_SLEEP is enabled: BUG: sleeping function called from invalid context at arch/powerpc/kernel/rtas.c:496 in_atomic(): 1, irqs_disabled(): 1, pid: 0, name: swapper/1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.2.0-rc2-thuth #6 Call Trace: [c00000007ffe7b90] [c000000000807670] dump_stack+0xa0/0xdc (unreliable) [c00000007ffe7bc0] [c0000000000e1f14] ___might_sleep+0x134/0x180 [c00000007ffe7c20] [c00000000002aec0] rtas_busy_delay+0x30/0xd0 [c00000007ffe7c50] [c00000000002bde4] rtas_get_sensor+0x74/0xe0 [c00000007ffe7ce0] [c000000000083264] ras_epow_interrupt+0x44/0x450 [c00000007ffe7d90] [c000000000120260] handle_irq_event_percpu+0xa0/0x300 [c00000007ffe7e70] [c000000000120524] handle_irq_event+0x64/0xc0 [c00000007ffe7eb0] [c000000000124dbc] handle_fasteoi_irq+0xec/0x260 [c00000007ffe7ef0] [c00000000011f4f0] generic_handle_irq+0x50/0x80 [c00000007ffe7f20] [c000000000010f3c] __do_irq+0x8c/0x200 [c00000007ffe7f90] [c0000000000236cc] call_do_irq+0x14/0x24 [c00000007e6f39e0] [c000000000011144] do_IRQ+0x94/0x110 [c00000007e6f3a30] [c000000000002594] hardware_interrupt_common+0x114/0x180 Fix this issue by introducing a new rtas_get_sensor_fast() function that does not use rtas_busy_delay() - and thus can only be used for sensors that do not cause a BUSY condition - known as "fast" sensors. The EPOW sensor is defined to be "fast" in sPAPR - mpe. Fixes: 587f83e8 ("powerpc/pseries: Use rtas_get_sensor in RAS code") Signed-off-by:
Thomas Huth <thuth@redhat.com> Reviewed-by:
Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by:
-
Florian Fainelli authored
commit d2eac98f upstream. The SF2 driver currently overrides speed settings for its port configured using a fixed PHY, this is both unnecessary and incorrect, because we keep feedback to the hardware parameters that we read from the PHY device, which in the case of a fixed PHY cannot possibly change speed. This is a required change to allow the fixed PHY code to allow registering a PHY with a link configured as DOWN by default and avoid some sort of circular dependency where we require the link_update callback to run to program the hardware, and we then utilize the fixed PHY parameters to program the hardware with the same settings. Fixes: 246d7f77 ("net: dsa: add Broadcom SF2 switch driver") Signed-off-by:
-
Florian Fainelli authored
commit 6cc8e6d4 upstream. We are currently doing a full PHY initialization and even starting the pHY state machine during bcmgenet_mii_init() which is executed in the driver's probe function. This is convenient to determine whether we can attach to a proper PHY device but comes at the expense of spending up to 10ms per MDIO transactions (to reach the waitqueue timeout), which slows things down. This also creates a sitaution where we end-up attaching twice to the PHY, which is not quite correct either. Fix this by moving bcmgenet_mii_probe() into bcmgenet_open() and update its error path accordingly. Avoid printing the message "attached PHY at address 1 [...]" every time we bring up/down the interface and remove this print since it duplicates what the PHY driver already does for us. Fixes: 1c1008c7 ("net: bcmgenet: add main driver file") Signed-off-by:
-
Florian Fainelli authored
commit 978ffac4 upstream. bcmgenet_open()'s error path call free_irq() with a dev_id argument different from the one we used to call request_irq() with, this will make us trip over the warning in kernel/irq/manage.c:__free_irq() Fixes: 1c1008c7 ("net: bcmgenet: add main driver file") Signed-off-by:
-
Minfei Huang authored
commit 9962eea9 upstream. The variable pmd_idx is not initialized for the first iteration of the for loop. Assign the proper value which indexes the start address. Fixes: 719272c4 'x86, mm: only call early_ioremap_page_table_range_init() once' Signed-off-by:
Minfei Huang <mnfhuang@gmail.com> Cc: tony.luck@intel.com Cc: wangnan0@huawei.com Cc: david.vrabel@citrix.com Reviewed-by: yinghai@kernel.org Link: http://lkml.kernel.org/r/1436703522-29552-1-git-send-email-mhuang@redhat.comSigned-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
-
Colin Ian King authored
commit f4745a92 upstream. Static analysis by cppcheck found an issue that was recently introduced by commit 471f7707 ("PM / clock_ops: make __pm_clk_enable more generic") where a return status in ret was not being initialised and garbage being returned when ce->status >= PCE_STATUS_ERROR. The fact that ret is not being checked by the caller and that ret is only used internally __pm_clk_enable() to check if clk_enable() was OK means we can ignore returning it instead turn __pm_clk_enable() into function with a void return. Fixes: 471f7707 ("PM / clock_ops: make __pm_clk_enable more generic") Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
-
Grygorii Strashko authored
commit 6417049f upstream. On DRA7 there is one pinctrl domain (dra7_pmx_core) and PRCM wake-up IRQ is not shared, so remove quirk. Cc: Nishanth Menon <nm@ti.com> Fixes: 31320bea ('pinctrl: single: Add DRA7 pinctrl compatibility') Signed-off-by:
Grygorii Strashko <grygorii.strashko@ti.com> Acked-by:
Tero Kristo <t-kristo@ti.com> Acked-by:
Tony Lindgren <tony@atomide.com> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
-
Bjorn Helgaas authored
commit d1541dc9 upstream. In fixup_ti816x_class(), we assigned "class = PCI_CLASS_MULTIMEDIA_VIDEO". But PCI_CLASS_MULTIMEDIA_VIDEO is only the two-byte base class/sub-class and needs to be shifted to make space for the low-order interface byte. Shift PCI_CLASS_MULTIMEDIA_VIDEO to set the correct class code. Fixes: 63c44080 ("PCI: Add quirk for setting valid class for TI816X Endpoint") Signed-off-by:
Bjorn Helgaas <bhelgaas@google.com> CC: Hemant Pedanekar <hemantp@ti.com> Signed-off-by:
-
