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2022-02-07lib/string_helpers: Consolidate string helpers implementationLucas De Marchi
There are a few implementations of string helpers in the tree like yesno() that just returns "yes" or "no" depending on a boolean argument. Those are helpful to output strings to the user or log. In order to consolidate them, prefix all of them str_ prefix to make it clear what they are about and avoid symbol clashes. Taking the commoon `val ? "yes" : "no"` implementation, quite a few users of open coded yesno() could later be converted to the new function: $ git grep '?\s*"yes"\s*' | wc -l 286 $ git grep '?\s*"no"\s*' | wc -l 20 The inlined function should keep the const strings local to each compilation unit, the same way it's now, thus not changing the current behavior. Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20220126093951.1470898-2-lucas.demarchi@intel.com
2022-02-07PM: s2idle: ACPI: Fix wakeup interrupts handlingRafael J. Wysocki
After commit e3728b50cd9b ("ACPI: PM: s2idle: Avoid possible race related to the EC GPE") wakeup interrupts occurring immediately after the one discarded by acpi_s2idle_wake() may be missed. Moreover, if the SCI triggers again immediately after the rearming in acpi_s2idle_wake(), that wakeup may be missed too. The problem is that pm_system_irq_wakeup() only calls pm_system_wakeup() when pm_wakeup_irq is 0, but that's not the case any more after the interrupt causing acpi_s2idle_wake() to run until pm_wakeup_irq is cleared by the pm_wakeup_clear() call in s2idle_loop(). However, there may be wakeup interrupts occurring in that time frame and if that happens, they will be missed. To address that issue first move the clearing of pm_wakeup_irq to the point at which it is known that the interrupt causing acpi_s2idle_wake() to tun will be discarded, before rearming the SCI for wakeup. Moreover, because that only reduces the size of the time window in which the issue may manifest itself, allow pm_system_irq_wakeup() to register two second wakeup interrupts in a row and, when discarding the first one, replace it with the second one. [Of course, this assumes that only one wakeup interrupt can be discarded in one go, but currently that is the case and I am not aware of any plans to change that.] Fixes: e3728b50cd9b ("ACPI: PM: s2idle: Avoid possible race related to the EC GPE") Cc: 5.4+ <stable@vger.kernel.org> # 5.4+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-02-07Drivers: hv: vmbus: Rework use of DMA_BIT_MASK(64)Michael Kelley
Using DMA_BIT_MASK(64) as an initializer for a global variable causes problems with Clang 12.0.1. The compiler doesn't understand that value 64 is excluded from the shift at compile time, resulting in a build error. While this is a compiler problem, avoid the issue by setting up the dma_mask memory as part of struct hv_device, and initialize it using dma_set_mask(). Reported-by: Nathan Chancellor <nathan@kernel.org> Reported-by: Vitaly Chikunov <vt@altlinux.org> Reported-by: Jakub Kicinski <kuba@kernel.org> Fixes: 743b237c3a7b ("scsi: storvsc: Add Isolation VM support for storvsc driver") Signed-off-by: Michael Kelley <mikelley@microsoft.com> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Tested-by: Nathan Chancellor <nathan@kernel.org> Link: https://lore.kernel.org/r/1644176216-12531-1-git-send-email-mikelley@microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org>
2022-02-07Merge tag 'omap-for-v5.17/fixes-for-merge-window-signed' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes Fixes for omaps A series of fixes for omap variants for minor issues, and a fix for a timer regression for some omap3 beagleboard versions. The timer fix needs to patch both the dts and the timer code because otherwise the timer quirk handling for old dtbs will prevent the dts fix from working. The other changes are for issues found by automated analysis, a macasp typo fix, and two cosmetic fixes for clocks. * tag 'omap-for-v5.17/fixes-for-merge-window-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: dts: Don't use legacy clock defines for dra7 clkctrl clk: ti: Move dra7 clock devices out of the legacy section ARM: dts: Fix timer regression for beagleboard revision c ARM: dts: am335x-wega: Fix typo in mcasp property rx-num-evt ARM: OMAP2+: adjust the location of put_device() call in omapdss_init_of ARM: OMAP2+: hwmod: Add of_node_put() before break Link: https://lore.kernel.org/r/pull-1641801310-149268@atomide.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-02-07Merge remote-tracking branch 'drm/drm-next' into drm-misc-nextMaarten Lankhorst
First backmerge into drm-misc-next. Required for more helpers backmerged, and to pull in 5.17 (rc2). Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2022-02-07dt-bindings: apple,aic: Add CPU PMU per-cpu pseudo-interruptsMarc Zyngier
Advertise the two pseudo-interrupts that tied to the two PMU flavours present in the Apple M1 SoC. We choose the expose two different pseudo-interrupts to the OS as the e-core PMU is obviously different from the p-core one, effectively presenting two different devices. Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Hector Martin <marcan@marcan.st> Signed-off-by: Marc Zyngier <maz@kernel.org>
2022-02-07mtd: Replace the expert mode symbols with a single helperMiquel Raynal
Reduce the number of exported symbols by replacing: - mtd_expert_analysis_warning (the error string) - mtd_expert_analysis_mode (the boolean) with a single helper: - mtd_check_expert_analysis_mode Calling this helper will both check/return the content of the internal boolean -which is not exported anymore- and as well conditionally WARN_ONCE() the user, like it was done before. While on this function, make the error string local to the helper and set it const. Only export this helper when CONFIG_DEBUG_FS is defined to limit the growth of the Linux kernel size only for a debug feature on production kernels. Mechanically update all the consumers. Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20220128113414.1121924-1-miquel.raynal@bootlin.com
2022-02-07ata: libata-core: Fix ata_dev_config_cpr()Damien Le Moal
The concurrent positioning ranges log page 47h is a general purpose log page and not a subpage of the indentify device log. Using ata_identify_page_supported() to test for concurrent positioning ranges support is thus wrong. ata_log_supported() must be used. Furthermore, unlike other advanced ATA features (e.g. NCQ priority), accesses to the concurrent positioning ranges log page are not gated by a feature bit from the device IDENTIFY data. Since many older drives react badly to the READ LOG EXT and/or READ LOG DMA EXT commands isued to read device log pages, avoid problems with older drives by limiting the concurrent positioning ranges support detection to drives implementing at least the ACS-4 ATA standard (major version 11). This additional condition effectively turns ata_dev_config_cpr() into a nop for older drives, avoiding problems in the field. Fixes: fe22e1c2f705 ("libata: support concurrent positioning ranges log") BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=215519 Cc: stable@vger.kernel.org Reviewed-by: Hannes Reinecke <hare@suse.de> Tested-by: Abderraouf Adjal <adjal.arf@gmail.com> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
2022-02-07net: udp: use kfree_skb_reason() in __udp_queue_rcv_skb()Menglong Dong
Replace kfree_skb() with kfree_skb_reason() in __udp_queue_rcv_skb(). Following new drop reasons are introduced: SKB_DROP_REASON_SOCKET_RCVBUFF SKB_DROP_REASON_PROTO_MEM Signed-off-by: Menglong Dong <imagedong@tencent.com> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-07net: ipv4: use kfree_skb_reason() in ip_protocol_deliver_rcu()Menglong Dong
Replace kfree_skb() with kfree_skb_reason() in ip_protocol_deliver_rcu(). Following new drop reasons are introduced: SKB_DROP_REASON_XFRM_POLICY SKB_DROP_REASON_IP_NOPROTO Signed-off-by: Menglong Dong <imagedong@tencent.com> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-07net: ipv4: use kfree_skb_reason() in ip_rcv_finish_core()Menglong Dong
Replace kfree_skb() with kfree_skb_reason() in ip_rcv_finish_core(), following drop reasons are introduced: SKB_DROP_REASON_IP_RPFILTER SKB_DROP_REASON_UNICAST_IN_L2_MULTICAST Signed-off-by: Menglong Dong <imagedong@tencent.com> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-07net: ipv4: use kfree_skb_reason() in ip_rcv_core()Menglong Dong
Replace kfree_skb() with kfree_skb_reason() in ip_rcv_core(). Three new drop reasons are introduced: SKB_DROP_REASON_OTHERHOST SKB_DROP_REASON_IP_CSUM SKB_DROP_REASON_IP_INHDR Signed-off-by: Menglong Dong <imagedong@tencent.com> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-07net: netfilter: use kfree_drop_reason() for NF_DROPMenglong Dong
Replace kfree_skb() with kfree_skb_reason() in nf_hook_slow() when skb is dropped by reason of NF_DROP. Following new drop reasons are introduced: SKB_DROP_REASON_NETFILTER_DROP Signed-off-by: Menglong Dong <imagedong@tencent.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-07net: skb_drop_reason: add document for drop reasonsMenglong Dong
Add document for following existing drop reasons: SKB_DROP_REASON_NOT_SPECIFIED SKB_DROP_REASON_NO_SOCKET SKB_DROP_REASON_PKT_TOO_SMALL SKB_DROP_REASON_TCP_CSUM SKB_DROP_REASON_SOCKET_FILTER SKB_DROP_REASON_UDP_CSUM Signed-off-by: Menglong Dong <imagedong@tencent.com> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-07Merge tag 'scmi-updates-5.17' of ↵Sudeep Holla
git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into for-next/scmi Arm SCMI firmware interface updates for v5.17 Couple of main additions: - Support for OPTEE based SCMI transport to enable using SCMI service provided by OPTEE on some platforms - Support for atomic SCMI transports which enables few SCMI transactions to be completed in atomic context. This involves other refactoring work associated with it. It also marks SMC and OPTEE as atomic transport as the commands are completed once the return Other changes involves some trace and log enhancements and a miscellaneous bug fix. * tag 'scmi-updates-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux: firmware: arm_scmi: Add new parameter to mark_txdone firmware: arm_scmi: Add atomic mode support to smc transport firmware: arm_scmi: Add support for atomic transports firmware: arm_scmi: Make optee support sync_cmds_completed_on_ret firmware: arm_scmi: Make smc support sync_cmds_completed_on_ret firmware: arm_scmi: Add sync_cmds_completed_on_ret transport flag firmware: arm_scmi: Make smc transport use common completions firmware: arm_scmi: Add configurable polling mode for transports firmware: arm_scmi: Use new trace event scmi_xfer_response_wait include: trace: Add new scmi_xfer_response_wait event firmware: arm_scmi: Refactor message response path firmware: arm_scmi: Set polling timeout to max_rx_timeout_ms firmware: arm_scmi: Perform earlier cinfo lookup call in do_xfer firmware: arm_scmi: optee: Drop the support for the OPTEE shared dynamic buffer firmware: arm_scmi: optee: Fix missing mutex_init() firmware: arm_scmi: Make virtio Version_1 compliance optional firmware: arm_scmi: Add optee transport dt-bindings: arm: Add OP-TEE transport for SCMI firmware: arm_scmi: Review some virtio log messages
2022-02-06drm: document struct drm_mode_fb_cmd2Simon Ser
Follow-up for the DRM_IOCTL_MODE_GETFB2 docs. v2: (Daniel Stone) - Replace fourcc.org with drm_fourcc.h because this is the authoritative source and the website may have mismatches. - Drop assumption that offsets will generally be 0. - Mention that unused entries must be zero'ed out. v3: (Pekka) - Mention that a handle can be re-used - Add unit for pitches/offsets Signed-off-by: Simon Ser <contact@emersion.fr> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com> Cc: Daniel Stone <daniels@collabora.com> Reviewed-by: Daniel Stone <daniels@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220203133753.261507-1-contact@emersion.fr
2022-02-06Merge tag 'ext4_for_linus_stable' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 fixes from Ted Ts'o: "Various bug fixes for ext4 fast commit and inline data handling. Also fix regression introduced as part of moving to the new mount API" * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: fs/ext4: fix comments mentioning i_mutex ext4: fix incorrect type issue during replay_del_range jbd2: fix kernel-doc descriptions for jbd2_journal_shrink_{scan,count}() ext4: fix potential NULL pointer dereference in ext4_fill_super() jbd2: refactor wait logic for transaction updates into a common function jbd2: cleanup unused functions declarations from jbd2.h ext4: fix error handling in ext4_fc_record_modified_inode() ext4: remove redundant max inline_size check in ext4_da_write_inline_data_begin() ext4: fix error handling in ext4_restore_inline_data() ext4: fast commit may miss file actions ext4: fast commit may not fallback for ineligible commit ext4: modify the logic of ext4_mb_new_blocks_simple ext4: prevent used blocks from being allocated during fast commit replay
2022-02-06Merge tag 'perf_urgent_for_v5.17_rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Borislav Petkov: - Intel/PT: filters could crash the kernel - Intel: default disable the PMU for SMM, some new-ish EFI firmware has started using CPL3 and the PMU CPL filters don't discriminate against SMM, meaning that CPL3 (userspace only) events now also count EFI/SMM cycles. - Fixup for perf_event_attr::sig_data * tag 'perf_urgent_for_v5.17_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel/pt: Fix crash with stop filters in single-range mode perf: uapi: Document perf_event_attr::sig_data truncation on 32 bit architectures selftests/perf_events: Test modification of perf_event_attr::sig_data perf: Copy perf_event_attr::sig_data on modification x86/perf: Default set FREEZE_ON_SMI for all
2022-02-06net: initialize init_net earlierEric Dumazet
While testing a patch that will follow later ("net: add netns refcount tracker to struct nsproxy") I found that devtmpfs_init() was called before init_net was initialized. This is a bug, because devtmpfs_setup() calls ksys_unshare(CLONE_NEWNS); This has the effect of increasing init_net refcount, which will be later overwritten to 1, as part of setup_net(&init_net) We had too many prior patches [1] trying to work around the root cause. Really, make sure init_net is in BSS section, and that net_ns_init() is called earlier at boot time. Note that another patch ("vfs: add netns refcount tracker to struct fs_context") also will need net_ns_init() being called before vfs_caches_init() As a bonus, this patch saves around 4KB in .data section. [1] f8c46cb39079 ("netns: do not call pernet ops for not yet set up init_net namespace") b5082df8019a ("net: Initialise init_net.count to 1") 734b65417b24 ("net: Statically initialize init_net.dev_base_head") v2: fixed a build error reported by kernel build bots (CONFIG_NET=n) Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-05Merge tag 'for-linus-5.17a-rc3-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fixes from Juergen Gross: - documentation fixes related to Xen - enable x2apic mode when available when running as hardware virtualized guest under Xen - cleanup and fix a corner case of vcpu enumeration when running a paravirtualized Xen guest * tag 'for-linus-5.17a-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: x86/Xen: streamline (and fix) PV CPU enumeration xen: update missing ioctl magic numers documentation Improve docs for IOCTL_GNTDEV_MAP_GRANT_REF xen: xenbus_dev.h: delete incorrect file name xen/x2apic: enable x2apic mode when supported for HVM
2022-02-05Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm fixes from Paolo Bonzini: "ARM: - A couple of fixes when handling an exception while a SError has been delivered - Workaround for Cortex-A510's single-step erratum RISC-V: - Make CY, TM, and IR counters accessible in VU mode - Fix SBI implementation version x86: - Report deprecation of x87 features in supported CPUID - Preparation for fixing an interrupt delivery race on AMD hardware - Sparse fix All except POWER and s390: - Rework guest entry code to correctly mark noinstr areas and fix vtime' accounting (for x86, this was already mostly correct but not entirely; for ARM, MIPS and RISC-V it wasn't)" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86: Use ERR_PTR_USR() to return -EFAULT as a __user pointer KVM: x86: Report deprecated x87 features in supported CPUID KVM: arm64: Workaround Cortex-A510's single-step and PAC trap errata KVM: arm64: Stop handle_exit() from handling HVC twice when an SError occurs KVM: arm64: Avoid consuming a stale esr value when SError occur RISC-V: KVM: Fix SBI implementation version RISC-V: KVM: make CY, TM, and IR counters accessible in VU mode kvm/riscv: rework guest entry logic kvm/arm64: rework guest entry logic kvm/x86: rework guest entry logic kvm/mips: rework guest entry logic kvm: add guest_state_{enter,exit}_irqoff() KVM: x86: Move delivery of non-APICv interrupt into vendor code kvm: Move KVM_GET_XSAVE2 IOCTL definition at the end of kvm.h
2022-02-05Merge tag 'iomap-5.17-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds
Pull iomap fix from Darrick Wong: "A single bugfix for iomap. The fix should eliminate occasional complaints about stall warnings when a lot of writeback IO completes all at once and we have to then go clearing status on a large number of folios. Summary: - Limit the length of ioend chains in writeback so that we don't trip the softlockup watchdog and to limit long tail latency on clearing PageWriteback" * tag 'iomap-5.17-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs, iomap: limit individual ioend chain lengths in writeback
2022-02-05skmsg: convert struct sk_msg_sg::copy to a bitmapEric Dumazet
We have plans for increasing MAX_SKB_FRAGS, but sk_msg_sg::copy is currently an unsigned long, limiting MAX_SKB_FRAGS to 30 on 32bit arches. Convert it to a bitmap, as Jakub suggested. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-05net: refine dev_put()/dev_hold() debuggingEric Dumazet
We are still chasing some syzbot reports where we think a rogue dev_put() is called with no corresponding prior dev_hold(). Unfortunately it eats a reference on dev->dev_refcnt taken by innocent dev_hold_track(), meaning that the refcount saturation splat comes too late to be useful. Make sure that 'not tracked' dev_put() and dev_hold() better use CONFIG_NET_DEV_REFCNT_TRACKER=y debug infrastructure: Prior patch in the series allowed ref_tracker_alloc() and ref_tracker_free() to be called with a NULL @trackerp parameter, and to use a separate refcount only to detect too many put() even in the following case: dev_hold_track(dev, tracker_1, GFP_ATOMIC); dev_hold(dev); dev_put(dev); dev_put(dev); // Should complain loudly here. dev_put_track(dev, tracker_1); // instead of here Add clarification about netdev_tracker_alloc() role. v2: I replaced the dev_put() in linkwatch_do_dev() with __dev_put() because callers called netdev_tracker_free(). Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-05ref_tracker: add a count of untracked referencesEric Dumazet
We are still chasing a netdev refcount imbalance, and we suspect we have one rogue dev_put() that is consuming a reference taken from a dev_hold_track() To detect this case, allow ref_tracker_alloc() and ref_tracker_free() to be called with a NULL @trackerp parameter, and use a dedicated refcount_t just for them. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-05ref_tracker: implement use-after-free detectionEric Dumazet
Whenever ref_tracker_dir_init() is called, mark the struct ref_tracker_dir as dead. Test the dead status from ref_tracker_alloc() and ref_tracker_free() This should detect buggy dev_put()/dev_hold() happening too late in netdevice dismantle process. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-05ipv6: make mc_forwarding atomicEric Dumazet
This fixes minor data-races in ip6_mc_input() and batadv_mcast_mla_rtr_flags_softif_get_ipv6() Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-05net: phylink: remove phylink_set_10g_modes()Russell King (Oracle)
phylink_set_10g_modes() is no longer used with the conversion of drivers to phylink_generic_validate(), so we can remove it. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-05net: gro: minor optimization for dev_gro_receive()Paolo Abeni
While inspecting some perf report, I noticed that the compiler emits suboptimal code for the napi CB initialization, fetching and storing multiple times the memory for flags bitfield. This is with gcc 10.3.1, but I observed the same with older compiler versions. We can help the compiler to do a nicer work clearing several fields at once using an u32 alias. The generated code is quite smaller, with the same number of conditional. Before: objdump -t net/core/gro.o | grep " F .text" 0000000000000bb0 l F .text 0000000000000357 dev_gro_receive After: 0000000000000bb0 l F .text 000000000000033c dev_gro_receive v1 -> v2: - use struct_group (Alexander and Alex) RFC -> v1: - use __struct_group to delimit the zeroed area (Alexander) Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-05net/sched: Enable tc skb ext allocation on chain miss only when neededPaul Blakey
Currently tc skb extension is used to send miss info from tc to ovs datapath module, and driver to tc. For the tc to ovs miss it is currently always allocated even if it will not be used by ovs datapath (as it depends on a requested feature). Export the static key which is used by openvswitch module to guard this code path as well, so it will be skipped if ovs datapath doesn't need it. Enable this code path once ovs datapath needs it. Signed-off-by: Paul Blakey <paulb@nvidia.com> Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-05Merge tag 'kvmarm-fixes-5.17-2' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 fixes for 5.17, take #2 - A couple of fixes when handling an exception while a SError has been delivered - Workaround for Cortex-A510's single-step[ erratum
2022-02-04uapi: ioam: Insertion frequencyJustin Iurman
Add the insertion frequency uapi for IOAM lwtunnels. Signed-off-by: Justin Iurman <justin.iurman@uliege.be> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-02-04net: don't include ndisc.h from ipv6.hJakub Kicinski
Nothing in ipv6.h needs ndisc.h, drop it. Link: https://lore.kernel.org/r/20220203043457.2222388-1-kuba@kernel.org Acked-by: Jeremy Kerr <jk@codeconstruct.com.au> Acked-by: Stefan Schmidt <stefan@datenfreihafen.org> Link: https://lore.kernel.org/r/20220203231240.2297588-1-kuba@kernel.org Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-02-04Merge tag 'ata-5.17-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata Pull ATA fixes from Damien Le Moal: - Sergey volunteered to be a reviewer for the Renesas R-Car SATA driver and PATA drivers. Update the MAINTAINERS file accordingly. - Regression fix: add a horkage flag to prevent accessing the log directory log page with SATADOM-ML 3ME SATA devices as they react badly to reading that log page (from Anton). * tag 'ata-5.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata: ata: libata-core: Introduce ATA_HORKAGE_NO_LOG_DIR horkage MAINTAINERS: add myself as Renesas R-Car SATA driver reviewer MAINTAINERS: add myself as PATA drivers reviewer
2022-02-04Merge tag 'random-5.17-rc3-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/crng/random Pull random number generator fixes from Jason Donenfeld: "For this week, we have: - A fix to make more frequent use of hwgenerator randomness, from Dominik. - More cleanups to the boot initialization sequence, from Dominik. - A fix for an old shortcoming with the ZAP ioctl, from me. - A workaround for a still unfixed Clang CFI/FullLTO compiler bug, from me. On one hand, it's a bummer to commit workarounds for experimental compiler features that have bugs. But on the other, I think this actually improves the code somewhat, independent of the bug. So a win-win" * tag 'random-5.17-rc3-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random: random: only call crng_finalize_init() for primary_crng random: access primary_pool directly rather than through pointer random: wake up /dev/random writers after zap random: continually use hwgenerator randomness lib/crypto: blake2s: avoid indirect calls to compression function for Clang CFI
2022-02-04bpf: Implement bpf_core_types_are_compat().Matteo Croce
Adopt libbpf's bpf_core_types_are_compat() for kernel duty by adding explicit recursion limit of 2 which is enough to handle 2 levels of function prototypes. Signed-off-by: Matteo Croce <mcroce@microsoft.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20220204005519.60361-2-mcroce@linux.microsoft.com
2022-02-04Merge tag 'sound-5.17-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "A collection of small fixes. The major changes are ASoC core fixes, addressing the DPCM locking issue after the recent code changes and the potentially invalid register accesses via control API. Also, HD-audio got a core fix for Oops at dynamic unbinding. The rest are device-specific small fixes, including the usual stuff like HD-audio and USB-audio quirks" * tag 'sound-5.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (31 commits) ALSA: hda: Skip codec shutdown in case the codec is not registered ALSA: usb-audio: Correct quirk for VF0770 ALSA: Replace acpi_bus_get_device() Input: wm97xx: Simplify resource management ALSA: hda/realtek: Add quirk for ASUS GU603 ALSA: hda/realtek: Fix silent output on Gigabyte X570 Aorus Xtreme after reboot from Windows ALSA: hda/realtek: Fix silent output on Gigabyte X570S Aorus Master (newer chipset) ALSA: hda/realtek: Add missing fixup-model entry for Gigabyte X570 ALC1220 quirks ALSA: hda: realtek: Fix race at concurrent COEF updates ASoC: ops: Check for negative values before reading them ASoC: rt5682: Fix deadlock on resume ASoC: hdmi-codec: Fix OOB memory accesses ASoC: soc-pcm: Move debugfs removal out of spinlock ASoC: soc-pcm: Fix DPCM lockdep warning due to nested stream locks ASoC: fsl: Add missing error handling in pcm030_fabric_probe ALSA: hda: Fix signedness of sscanf() arguments ALSA: usb-audio: initialize variables that could ignore errors ALSA: hda: Fix UAF of leds class devs at unbinding ASoC: qdsp6: q6apm-dai: only stop graphs that are started ASoC: codecs: wcd938x: fix return value of mixer put function ...
2022-02-04Merge tag 'drm-fixes-2022-02-04' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull drm fixes from Dave Airlie: "Regular fixes for the week. Daniel has agreed to bring back the fbcon hw acceleration under a CONFIG option for the non-drm fbdev users, we don't advise turning this on unless you are in the niche that is old fbdev drivers, Since it's essentially a revert and shouldn't be high impact seemed like a good time to do it now. Otherwise, i915 and amdgpu fixes are most of it, along with some minor fixes elsewhere. fbdev: - readd fbcon acceleration i915: - fix DP monitor via type-c dock - fix for engine busyness and read timeout with GuC - use ALLOW_FAIL for error capture buffer allocs - don't use interruptible lock on error paths - smatch fix to reject zero sized overlays. amdgpu: - mGPU fan boost fix for beige goby - S0ix fixes - Cyan skillfish hang fix - DCN fixes for DCN 3.1 - DCN fixes for DCN 3.01 - Apple retina panel fix - ttm logic inversion fix dma-buf: - heaps: fix potential spectre v1 gadget kmb: - fix potential oob access mxsfb: - fix NULL ptr deref nouveau: - fix potential oob access during BIOS decode" * tag 'drm-fixes-2022-02-04' of git://anongit.freedesktop.org/drm/drm: (24 commits) drm: mxsfb: Fix NULL pointer dereference drm/amdgpu: fix logic inversion in check drm/amd: avoid suspend on dGPUs w/ s2idle support when runtime PM enabled drm/amd/display: Force link_rate as LINK_RATE_RBR2 for 2018 15" Apple Retina panels drm/amd/display: revert "Reset fifo after enable otg" drm/amd/display: watermark latencies is not enough on DCN31 drm/amd/display: Update watermark values for DCN301 drm/amdgpu: fix a potential GPU hang on cyan skillfish drm/amd: Only run s3 or s0ix if system is configured properly drm/amd: add support to check whether the system is set to s3 fbcon: Add option to enable legacy hardware acceleration Revert "fbcon: Disable accelerated scrolling" Revert "fbdev: Garbage collect fbdev scrolling acceleration, part 1 (from TODO list)" drm/i915/pmu: Fix KMD and GuC race on accessing busyness dma-buf: heaps: Fix potential spectre v1 gadget drm/amd: Warn users about potential s0ix problems drm/amd/pm: correct the MGpuFanBoost support for Beige Goby drm/nouveau: fix off by one in BIOS boundary checking drm/i915/adlp: Fix TypeC PHY-ready status readout drm/i915/pmu: Use PM timestamp instead of RING TIMESTAMP for reference ...
2022-02-04Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge misc fixes from Andrew Morton: "10 patches. Subsystems affected by this patch series: ipc, MAINTAINERS, and mm (vmscan, debug, pagemap, kmemleak, and selftests)" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: kselftest/vm: revert "tools/testing/selftests/vm/userfaultfd.c: use swap() to make code cleaner" MAINTAINERS: update rppt's email mm/kmemleak: avoid scanning potential huge holes ipc/sem: do not sleep with a spin lock held mm/pgtable: define pte_index so that preprocessor could recognize it mm/page_table_check: check entries at pmd levels mm/khugepaged: unify collapse pmd clear, flush and free mm/page_table_check: use unsigned long for page counters and cleanup mm/debug_vm_pgtable: remove pte entry from the page table Revert "mm/page_isolation: unset migratetype directly for non Buddy page"
2022-02-04cpufreq: Move to_gov_attr_set() to cpufreq.hKevin Hao
So it can be reused by other codes. Signed-off-by: Kevin Hao <haokexin@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-02-04lib/crypto: blake2s: avoid indirect calls to compression function for Clang CFIJason A. Donenfeld
blake2s_compress_generic is weakly aliased by blake2s_compress. The current harness for function selection uses a function pointer, which is ordinarily inlined and resolved at compile time. But when Clang's CFI is enabled, CFI still triggers when making an indirect call via a weak symbol. This seems like a bug in Clang's CFI, as though it's bucketing weak symbols and strong symbols differently. It also only seems to trigger when "full LTO" mode is used, rather than "thin LTO". [ 0.000000][ T0] Kernel panic - not syncing: CFI failure (target: blake2s_compress_generic+0x0/0x1444) [ 0.000000][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.16.0-mainline-06981-g076c855b846e #1 [ 0.000000][ T0] Hardware name: MT6873 (DT) [ 0.000000][ T0] Call trace: [ 0.000000][ T0] dump_backtrace+0xfc/0x1dc [ 0.000000][ T0] dump_stack_lvl+0xa8/0x11c [ 0.000000][ T0] panic+0x194/0x464 [ 0.000000][ T0] __cfi_check_fail+0x54/0x58 [ 0.000000][ T0] __cfi_slowpath_diag+0x354/0x4b0 [ 0.000000][ T0] blake2s_update+0x14c/0x178 [ 0.000000][ T0] _extract_entropy+0xf4/0x29c [ 0.000000][ T0] crng_initialize_primary+0x24/0x94 [ 0.000000][ T0] rand_initialize+0x2c/0x6c [ 0.000000][ T0] start_kernel+0x2f8/0x65c [ 0.000000][ T0] __primary_switched+0xc4/0x7be4 [ 0.000000][ T0] Rebooting in 5 seconds.. Nonetheless, the function pointer method isn't so terrific anyway, so this patch replaces it with a simple boolean, which also gets inlined away. This successfully works around the Clang bug. In general, I'm not too keen on all of the indirection involved here; it clearly does more harm than good. Hopefully the whole thing can get cleaned up down the road when lib/crypto is overhauled more comprehensively. But for now, we go with a simple bandaid. Fixes: 6048fdcc5f26 ("lib/crypto: blake2s: include as built-in") Link: https://github.com/ClangBuiltLinux/linux/issues/1567 Reported-by: Miles Chen <miles.chen@mediatek.com> Tested-by: Miles Chen <miles.chen@mediatek.com> Tested-by: Nathan Chancellor <nathan@kernel.org> Tested-by: John Stultz <john.stultz@linaro.org> Acked-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2022-02-04Merge tag 'ceph-for-5.17-rc3' of git://github.com/ceph/ceph-clientLinus Torvalds
Pull ceph fixes from Ilya Dryomov: "A patch to make it possible to disable zero copy path in the messenger to avoid checksum or authentication tag mismatches and ensuing session resets in case the destination buffer isn't guaranteed to be stable" * tag 'ceph-for-5.17-rc3' of git://github.com/ceph/ceph-client: libceph: optionally use bounce buffer on recv path in crc mode libceph: make recv path in secure mode work the same as send path
2022-02-04Merge tag '5.17-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds
Pull cifs fixes from Steve French: "SMB3 client fixes including: - multiple fscache related fixes, reenabling ability to read/write to cached files for cifs.ko (that was temporarily disabled for cifs.ko a few weeks ago due to the recent fscache changes) - also includes a new fscache helper function ("query_occupancy") used by above - fix for multiuser mounts and NTLMSSP auth (workstation name) for stable - fix locking ordering problem in multichannel code - trivial malformed comment fix" * tag '5.17-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6: cifs: fix workstation_name for multiuser mounts Invalidate fscache cookie only when inode attributes are changed. cifs: Fix the readahead conversion to manage the batch when reading from cache cifs: Implement cache I/O by accessing the cache directly netfs, cachefiles: Add a method to query presence of data in the cache cifs: Transition from ->readpages() to ->readahead() cifs: unlock chan_lock before calling cifs_put_tcp_session Fix a warning about a malformed kernel doc comment in cifs
2022-02-04mm/pgtable: define pte_index so that preprocessor could recognize itMike Rapoport
Since commit 974b9b2c68f3 ("mm: consolidate pte_index() and pte_offset_*() definitions") pte_index is a static inline and there is no define for it that can be recognized by the preprocessor. As a result, vm_insert_pages() uses slower loop over vm_insert_page() instead of insert_pages() that amortizes the cost of spinlock operations when inserting multiple pages. Link: https://lkml.kernel.org/r/20220111145457.20748-1-rppt@kernel.org Fixes: 974b9b2c68f3 ("mm: consolidate pte_index() and pte_offset_*() definitions") Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Reported-by: Christian Dietrich <stettberger@dokucode.de> Reviewed-by: Khalid Aziz <khalid.aziz@oracle.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-02-04mm/page_table_check: check entries at pmd levelsPasha Tatashin
syzbot detected a case where the page table counters were not properly updated. syzkaller login: ------------[ cut here ]------------ kernel BUG at mm/page_table_check.c:162! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 3099 Comm: pasha Not tainted 5.16.0+ #48 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIO4 RIP: 0010:__page_table_check_zero+0x159/0x1a0 Call Trace: free_pcp_prepare+0x3be/0xaa0 free_unref_page+0x1c/0x650 free_compound_page+0xec/0x130 free_transhuge_page+0x1be/0x260 __put_compound_page+0x90/0xd0 release_pages+0x54c/0x1060 __pagevec_release+0x7c/0x110 shmem_undo_range+0x85e/0x1250 ... The repro involved having a huge page that is split due to uprobe event temporarily replacing one of the pages in the huge page. Later the huge page was combined again, but the counters were off, as the PTE level was not properly updated. Make sure that when PMD is cleared and prior to freeing the level the PTEs are updated. Link: https://lkml.kernel.org/r/20220131203249.2832273-5-pasha.tatashin@soleen.com Fixes: df4e817b7108 ("mm: page table check") Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com> Acked-by: David Rientjes <rientjes@google.com> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Cc: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Greg Thelen <gthelen@google.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Hugh Dickins <hughd@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Slaby <jirislaby@kernel.org> Cc: Mike Rapoport <rppt@kernel.org> Cc: Muchun Song <songmuchun@bytedance.com> Cc: Paul Turner <pjt@google.com> Cc: Wei Xu <weixugc@google.com> Cc: Will Deacon <will@kernel.org> Cc: Zi Yan <ziy@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-02-04powercap/drivers/dtpm: Add hierarchy creationDaniel Lezcano
The DTPM framework is available but without a way to configure it. This change provides a way to create a hierarchy of DTPM node where the power consumption reflects the sum of the children's power consumption. It is up to the platform to specify an array of dtpm nodes where each element has a pointer to its parent, except the top most one. The type of the node gives the indication of which initialization callback to call. At this time, we can create a virtual node, where its purpose is to be a parent in the hierarchy, and a DT node where the name describes its path. In order to ensure a nice self-encapsulation, the DTPM subsys array contains a couple of initialization functions, one to setup the DTPM backend and one to initialize it up. With this approach, the DTPM framework has a very few material to export. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20220128163537.212248-3-daniel.lezcano@linaro.org
2022-02-04powercap/drivers/dtpm: Convert the init table section to a simple arrayDaniel Lezcano
The init table section is freed after the system booted. However the next changes will make per module the DTPM description, so the table won't be accessible when the module is loaded. In order to fix that, we should move the table to the data section where there are very few entries and that makes strange to add it there. The main goal of the table was to keep self-encapsulated code and we can keep it almost as it by using an array instead. Suggested-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20220128163537.212248-2-daniel.lezcano@linaro.org
2022-02-04mac80211: fix struct ieee80211_tx_info sizeAvraham Stern
The size of the status_driver_data field was not adjusted when the is_valid_ack_signal field was added. Since the size of struct ieee80211_tx_info is limited, replace the is_valid_ack_signal field with a flags field, and adjust the struct size accordingly. Signed-off-by: Avraham Stern <avraham.stern@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20220202104617.0ff363d4fa56.I45792c0187034a6d0e1c99a7db741996ef7caba3@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-02-04ieee80211: radiotap: fix -Wcast-qual warningsJohannes Berg
When enabling -Wcast-qual e.g. via W=3, we get a lot of warnings from this file, whenever it's included. Since the fixes are simple, just do that. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20220202104617.cc733aeb1a18.I03396e1bf7a1af364cbd0916037f65d800035039@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-02-04cfg80211: fix -Wcast-qual warningsJohannes Berg
When enabling -Wcast-qual e.g. via W=3, we get a lot of warnings from this file, whenever it's included. Since the fixes are simple, just do that. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20220202104617.6a1d52213019.I92d82e7251cf712faa43fd09db3142327a3bce3d@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>