summaryrefslogtreecommitdiff
AgeCommit message (Collapse)Author
2025-05-06ASoC: cs35l56: Add Index based on ACPI HID or SDW ID to select regmap configStefan Binding
This is to prepare for further products using slightly different regmap configs. Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com> Reviewed-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://patch.msgid.link/20250407151842.143393-2-sbinding@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-05-06ASoC: SOF: imx8m: Use reset controller API to control the DSPDaniel Baluta
DSP on i.MX8MP doesn't have a direct reset line so according to hardware design team in order to handle assert/deassert/reset functionality we need to use a combination of control bits from two modules. Audio block control module for Run/Stall control of the DSP and DAP module in order to do software reset. In a first step, for i.MX8MP we are switching on using the reset controller API to handle the DSP Run/Stall bits i.MX8MP. This comes with the advantage of offering a better probe ordering and a more natural way of abstracting the Audio block control bits. Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com> Reviewed-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com> Tested-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com> Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com> Link: https://patch.msgid.link/20250505114251.57018-1-daniel.baluta@nxp.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-05-06AsoC: Phase out hybrid PCI devresMark Brown
Merge series from Philipp Stanner <phasta@kernel.org>: A year ago we spent quite some work trying to get PCI into better shape. Some pci_ functions can be sometimes managed with devres, which is obviously bad. We want to provide an obvious API, where pci_ functions are never, and pcim_ functions are always managed. Thus, everyone enabling his device with pcim_enable_device() must be ported to pcim_ functions. Porting all users will later enable us to significantly simplify parts of the PCI subsystem. See here [1] for details. This patch series does that for sound. Feel free to squash the commits as you see fit. P. [1] https://elixir.bootlin.com/linux/v6.14-rc4/source/drivers/pci/devres.c#L18
2025-05-06ASoC: Intel: sof_sdw: Avoid NULL check fail when re-probingCharles Keepax
The static platform_component name string is overwritten on card tear down by sof_link_unload(). After this has happened the NULL check on it in asoc_sdw_init_simple_dai_link() will fail when the driver is reprobed, causing the machine driver to fail probe. However, it also turns out that the ASoC core sets this string for all topology systems in soc_check_tplg_fes() anyway, after the aforementioned NULL check. So there is no need for the machine driver to set the platform name to anything meaningful at all. Replace all the platform_component stuff with some simple place holders and importantly since the core tampers with the snd_soc_dai_link_component in multiple places allocate a new one for each usage. Fixes: 59f8b622d52e ("ASoC: intel/sdw_utils: refactor init_dai_link() and init_simple_dai_link()") Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Link: https://patch.msgid.link/20250505141409.2614010-3-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-05-06ASoC: sdw_utils: Remove num_platforms from simple DAI helperCharles Keepax
There is no point in passing num_platforms into asoc_sdw_init_simple_dai_link(). Firstly, as a single pointer for the component name is passed in only a single string can be passed and secondly if it is a complex DAI with multiple platforms it would make more sense to use asoc_sdw_init_dai_link(). Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Link: https://patch.msgid.link/20250505141409.2614010-2-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-05-06i2c: omap: fix deprecated of_property_read_bool() useJohan Hovold
Using of_property_read_bool() for non-boolean properties is deprecated and results in a warning during runtime since commit c141ecc3cecd ("of: Warn when of_property_read_bool() is used on non-boolean properties"). Fixes: b6ef830c60b6 ("i2c: omap: Add support for setting mux") Cc: Jayesh Choudhary <j-choudhary@ti.com> Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Acked-by: Mukesh Kumar Savaliya <quic_msavaliy@quicinc.com> Link: https://lore.kernel.org/r/20250415075230.16235-1-johan+linaro@kernel.org Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2025-05-05virtio-net: free xsk_buffs on error in virtnet_xsk_pool_enable()Jakub Kicinski
The selftests added to our CI by Bui Quang Minh recently reveals that there is a mem leak on the error path of virtnet_xsk_pool_enable(): unreferenced object 0xffff88800a68a000 (size 2048): comm "xdp_helper", pid 318, jiffies 4294692778 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kvmalloc_node_noprof+0x402/0x570 virtnet_xsk_pool_enable+0x293/0x6a0 (drivers/net/virtio_net.c:5882) xp_assign_dev+0x369/0x670 (net/xdp/xsk_buff_pool.c:226) xsk_bind+0x6a5/0x1ae0 __sys_bind+0x15e/0x230 __x64_sys_bind+0x72/0xb0 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f Acked-by: Jason Wang <jasowang@redhat.com> Fixes: e9f3962441c0 ("virtio_net: xsk: rx: support fill with xsk buffer") Link: https://patch.msgid.link/20250430163836.3029761-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05virtio-net: don't re-enable refill work too early when NAPI is disabledJakub Kicinski
Commit 4bc12818b363 ("virtio-net: disable delayed refill when pausing rx") fixed a deadlock between reconfig paths and refill work trying to disable the same NAPI instance. The refill work can't run in parallel with reconfig because trying to double-disable a NAPI instance causes a stall under the instance lock, which the reconfig path needs to re-enable the NAPI and therefore unblock the stalled thread. There are two cases where we re-enable refill too early. One is in the virtnet_set_queues() handler. We call it when installing XDP: virtnet_rx_pause_all(vi); ... virtnet_napi_tx_disable(..); ... virtnet_set_queues(..); ... virtnet_rx_resume_all(..); We want the work to be disabled until we call virtnet_rx_resume_all(), but virtnet_set_queues() kicks it before NAPIs were re-enabled. The other case is a more trivial case of mis-ordering in __virtnet_rx_resume() found by code inspection. Taking the spin lock in virtnet_set_queues() (requested during review) may be unnecessary as we are under rtnl_lock and so are all paths writing to ->refill_enabled. Acked-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Bui Quang Minh <minhquangbui99@gmail.com> Fixes: 4bc12818b363 ("virtio-net: disable delayed refill when pausing rx") Fixes: 413f0271f396 ("net: protect NAPI enablement with netdev_lock()") Link: https://patch.msgid.link/20250430163758.3029367-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05Merge branch 'net_sched-fix-a-regression-in-sch_htb'Jakub Kicinski
Cong Wang says: ==================== net_sched: fix a regression in sch_htb This patchset contains a fix for the regression reported by Alan and a selftest to cover that case. Please see each patch description for more details. ==================== Link: https://patch.msgid.link/20250428232955.1740419-1-xiyou.wangcong@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05selftests/tc-testing: Add a test case to cover basic HTB+FQ_CODEL caseCong Wang
Integrate the reproducer from Alan into TC selftests and use scapy to generate TCP traffic instead of relying on ping command. Cc: Alan J. Wylie <alan@wylie.me.uk> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Link: https://patch.msgid.link/20250428232955.1740419-3-xiyou.wangcong@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05sch_htb: make htb_deactivate() idempotentCong Wang
Alan reported a NULL pointer dereference in htb_next_rb_node() after we made htb_qlen_notify() idempotent. It turns out in the following case it introduced some regression: htb_dequeue_tree(): |-> fq_codel_dequeue() |-> qdisc_tree_reduce_backlog() |-> htb_qlen_notify() |-> htb_deactivate() |-> htb_next_rb_node() |-> htb_deactivate() For htb_next_rb_node(), after calling the 1st htb_deactivate(), the clprio[prio]->ptr could be already set to NULL, which means htb_next_rb_node() is vulnerable here. For htb_deactivate(), although we checked qlen before calling it, in case of qlen==0 after qdisc_tree_reduce_backlog(), we may call it again which triggers the warning inside. To fix the issues here, we need to: 1) Make htb_deactivate() idempotent, that is, simply return if we already call it before. 2) Make htb_next_rb_node() safe against ptr==NULL. Many thanks to Alan for testing and for the reproducer. Fixes: 5ba8b837b522 ("sch_htb: make htb_qlen_notify() idempotent") Reported-by: Alan J. Wylie <alan@wylie.me.uk> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Link: https://patch.msgid.link/20250428232955.1740419-2-xiyou.wangcong@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05bcachefs: Call bch2_fs_start before getting vfs superblockKent Overstreet
This reverts 1fdbe0b184c8 bcachefs: Make sure c->vfs_sb is set before starting fs switched up bch2_fs_get_tree() so that we got a superblock before calling bch2_fs_start, so that c->vfs_sb would always be initialized while the filesystem was active. This turned out not to be necessary, because blk_holder_ops were implemented using our own locking, not vfs locking. And this had the side effect of creating a super_block and doing our full recovery (including potentially fsck) before setting SB_BORN, which causes things like sync calls to hang until our recovery is finished. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2025-05-05KVM: arm64: selftest: Don't try to disable AArch64 supportMarc Zyngier
Trying to cut the branch you are sat on is pretty dumb. And so is trying to disable the instruction set you are executing on. Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com> Link: https://lore.kernel.org/r/20250429114117.3618800-3-maz@kernel.org Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2025-05-05KVM: arm64: Prevent userspace from disabling AArch64 support at any ↵Marc Zyngier
virtualisable EL A sorry excuse for a selftest is trying to disable AArch64 support. And yes, this goes as well as you can imagine. Let's forbid this sort of things. Normal userspace shouldn't get caught doing that. Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com> Link: https://lore.kernel.org/r/20250429114117.3618800-2-maz@kernel.org Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2025-05-05KVM: arm64: Force HCR_EL2.xMO to 1 at all times in VHE modeMarc Zyngier
We keep setting and clearing these bits depending on the role of the host kernel, mimicking what we do for nVHE. But that's actually pretty pointless, as we always want physical interrupts to make it to the host, at EL2. This has also two problems: - it prevents IRQs from being taken when these bits are cleared if the implementation has chosen to implement these bits as masks when HCR_EL2.{TGE,xMO}=={0,0} - it triggers a bad erratum on the AmpereOne HW, which catches fire on clearing these bits while an interrupt is being taken (AC03_CPU_36). Let's kill these two birds with a single stone, and permanently set the xMO bits when running VHE. This involves a bit of surgery on code paths that rely on flipping these bits on and off for other purposes. Note that the earliest setting of hcr_el2 (in the init_hcr_el2 macro) is left untouched as is runs extremely early, with interrupts disabled, and soon enough overwritten with the final value containing the xMO bits. Reported-by: D Scott Phillips <scott@os.amperecomputing.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20250429114326.3618875-1-maz@kernel.org Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2025-05-05KVM: arm64: Fix uninitialized memcache pointer in user_mem_abort()Sebastian Ott
Commit fce886a60207 ("KVM: arm64: Plumb the pKVM MMU in KVM") made the initialization of the local memcache variable in user_mem_abort() conditional, leaving a codepath where it is used uninitialized via kvm_pgtable_stage2_map(). This can fail on any path that requires a stage-2 allocation without transition via a permission fault or dirty logging. Fix this by making sure that memcache is always valid. Fixes: fce886a60207 ("KVM: arm64: Plumb the pKVM MMU in KVM") Signed-off-by: Sebastian Ott <sebott@redhat.com> Reviewed-by: Marc Zyngier <maz@kernel.org> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/kvmarm/3f5db4c7-ccce-fb95-595c-692fa7aad227@redhat.com/ Link: https://lore.kernel.org/r/20250505173148.33900-1-sebott@redhat.com Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2025-05-05bcachefs: fix hung task timeout in journal readKent Overstreet
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2025-05-05bcachefs: Add missing barriers before wake_up_bit()Kent Overstreet
wake_up() doesn't require a barrier - but wake_up_bit() does. This only affected non x86, and primarily lead to lost wakeups after btree node reads. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2025-05-05bcachefs: Ensure proper write alignmentKent Overstreet
There was a buggy version of bcachefs-tools which picked misaligned bucket sizes when formatting, and we're also about to do dynamic block sizes - which will allow picking logical block size or physical block size of the device per-write, allowing for better compression ratios at the cost of slightly worse write performance (i.e. forcing the device to do RMW or extra buffering). To account for this, tweak bch2_alloc_sectors_start() to properly align open_buckets to the blocksize of the write we're about to do. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2025-05-05bcachefs: Improve want_cached_ptr()Kent Overstreet
If promote target isn't set, rebalance should still leave a cached copy on the faster device. Fall back to foreground_target if it's set, or allow a cached copy on any device if neither are set. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2025-05-05Merge tag 'uml-for-linux-6.15-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux Pull uml fix from Johannes Berg: "There's just a single fix here for the _nofault changes that were causing issues with clang, and then when we looked at it some other issues seemed to exist" * tag 'uml-for-linux-6.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux: um: fix _nofault accesses
2025-05-05Merge tag 'soc-fixes-6.15' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull SoC fixes from Arnd Bergmann: "The main changes are once more for the NXP i.MX platform, addressing multiple regressions in recent devicetree updates for the i.MX8MM and i.MX6ULL SoCs, a PCIe fix for i.MX9 and a MAINTAINERS file update to disambiguate NXP i.MX SoCs from Sony IMX image sensors. The stm32 platform devicetree files get some compatibility fixes for the interrupt controller node. Another compatibility fix is done for the Arm Morello platform's cache controller node. The code changes are all for firmware drivers, fixing kernel-side bugs on the Arm FF-A and SCMI drivers" * tag 'soc-fixes-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: arm64: dts: st: Use 128kB size for aliased GIC400 register access on stm32mp23 SoCs arm64: dts: st: Adjust interrupt-controller for stm32mp23 SoCs arm64: dts: st: Use 128kB size for aliased GIC400 register access on stm32mp21 SoCs arm64: dts: st: Adjust interrupt-controller for stm32mp21 SoCs arm64: dts: st: Use 128kB size for aliased GIC400 register access on stm32mp25 SoCs arm64: dts: st: Adjust interrupt-controller for stm32mp25 SoCs arm64: dts: imx8mm-verdin: Link reg_usdhc2_vqmmc to usdhc2 MAINTAINERS: add exclude for dt-bindings to imx entry ARM: dts: opos6ul: add ksz8081 phy properties arm64: dts: imx95: Correct the range of PCIe app-reg region arm64: dts: imx8mp: configure GPU and NPU clocks in nominal DTSI arm64: dts: morello: Fix-up cache nodes firmware: arm_ffa: Skip Rx buffer ownership release if not acquired firmware: arm_scmi: Fix timeout checks on polling path firmware: arm_scmi: Balance device refcount when destroying devices
2025-05-05xhci: dbc: Avoid event polling busyloop if pending rx transfers are inactive.Mathias Nyman
Event polling delay is set to 0 if there are any pending requests in either rx or tx requests lists. Checking for pending requests does not work well for "IN" transfers as the tty driver always queues requests to the list and TRBs to the ring, preparing to receive data from the host. This causes unnecessary busylooping and cpu hogging. Only set the event polling delay to 0 if there are pending tx "write" transfers, or if it was less than 10ms since last active data transfer in any direction. Cc: Łukasz Bartosik <ukaszb@chromium.org> Fixes: fb18e5bb9660 ("xhci: dbc: poll at different rate depending on data transfer activity") Cc: stable@vger.kernel.org Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20250505125630.561699-3-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-05usb: xhci: Don't trust the EP Context cycle bit when moving HW dequeueMichal Pecio
VIA VL805 doesn't bother updating the EP Context cycle bit when the endpoint halts. This is seen by patching xhci_move_dequeue_past_td() to print the cycle bits of the EP Context and the TRB at hw_dequeue and then disconnecting a flash drive while reading it. Actual cycle state is random as expected, but the EP Context bit is always 1. This means that the cycle state produced by this function is wrong half the time, and then the endpoint stops working. Work around it by looking at the cycle bit of TD's end_trb instead of believing the Endpoint or Stream Context. Specifically: - rename cycle_found to hw_dequeue_found to avoid confusion - initialize new_cycle from td->end_trb instead of hw_dequeue - switch new_cycle toggling to happen after end_trb is found Now a workload which regularly stalls the device works normally for a few hours and clearly demonstrates the HW bug - the EP Context bit is not updated in a new cycle until Set TR Dequeue overwrites it: [ +0,000298] sd 10:0:0:0: [sdc] Attached SCSI disk [ +0,011758] cycle bits: TRB 1 EP Ctx 1 [ +5,947138] cycle bits: TRB 1 EP Ctx 1 [ +0,065731] cycle bits: TRB 0 EP Ctx 1 [ +0,064022] cycle bits: TRB 0 EP Ctx 0 [ +0,063297] cycle bits: TRB 0 EP Ctx 0 [ +0,069823] cycle bits: TRB 0 EP Ctx 0 [ +0,063390] cycle bits: TRB 1 EP Ctx 0 [ +0,063064] cycle bits: TRB 1 EP Ctx 1 [ +0,062293] cycle bits: TRB 1 EP Ctx 1 [ +0,066087] cycle bits: TRB 0 EP Ctx 1 [ +0,063636] cycle bits: TRB 0 EP Ctx 0 [ +0,066360] cycle bits: TRB 0 EP Ctx 0 Also tested on the buggy ASM1042 which moves EP Context dequeue to the next TRB after errors, one problem case addressed by the rework that implemented this loop. In this case hw_dequeue can be enqueue, so simply picking the cycle bit of TRB at hw_dequeue wouldn't work. Commit 5255660b208a ("xhci: add quirk for host controllers that don't update endpoint DCS") tried to solve the stale cycle problem, but it was more complex and got reverted due to a reported issue. Cc: Jonathan Bell <jonathan@raspberrypi.org> Cc: Oliver Neukum <oneukum@suse.com> Signed-off-by: Michal Pecio <michal.pecio@gmail.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20250505125630.561699-2-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-05s390: Update defconfigsHeiko Carstens
Just the regular update of all defconfigs. Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2025-05-05s390/dcssblk: Fix build error with CONFIG_DAX=m and CONFIG_DCSSBLK=yGerald Schaefer
After commit 653d7825c149 ("dcssblk: mark DAX broken, remove FS_DAX_LIMITED support") moved the "select DAX" from config DCSSBLK to the new config DCSSBLK_DAX, randconfig tests could result in build errors like this: s390-linux-ld: drivers/s390/block/dcssblk.o: in function `dcssblk_shared_store': drivers/s390/block/dcssblk.c:417: undefined reference to `kill_dax' s390-linux-ld: drivers/s390/block/dcssblk.c:418: undefined reference to `put_dax' This is because it's now possible to have CONFIG_DCSSBLK=y, but CONFIG_DAX=m. Fix this by adding "depends on DAX || DAX=n" to config DCSSBLK, to make it explicit that we want either no DAX, or the same "y/m" for both config DAX and DCSSBLK, similar to config BLK_DEV_DM. This also requires removing the "select DAX" from config DCSSBLK_DAX, or else there would be a recursive dependency detected. DCSSBLK_DAX is marked as BROKEN at the moment, and won't work well with DAX anyway, so it doesn't really matter if it is selected. Fixes: 653d7825c149 ("dcssblk: mark DAX broken, remove FS_DAX_LIMITED support") Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202504291604.pvjonhWX-lkp@intel.com/ Signed-off-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2025-05-05s390/entry: Fix last breaking event handling in case of stack corruptionHeiko Carstens
In case of stack corruption stack_invalid() is called and the expectation is that register r10 contains the last breaking event address. This dependency is quite subtle and broke a couple of years ago without that anybody noticed. Fix this by getting rid of the dependency and read the last breaking event address from lowcore. Fixes: 56e62a737028 ("s390: convert to generic entry") Acked-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2025-05-05s390/configs: Enable options required for TC flow offloadKonstantin Shkolnyy
While testing Open vSwitch with Nvidia ConnectX-6 NIC, it was noticed that it didn't offload TC flows into the NIC, and its log contained many messages such as: "failed to offload flow: No such file or directory: <network device name>" and, upon enabling more versose logging, additionally: "received NAK error=2 - TC classifier not found" The options enabled here are listed as requirements in Nvidia online documentation, among other options that were already enabled. Now all options listed by Nvidia are enabled.. This option is also added because Fedora has it: CONFIG_NET_EMATCH Signed-off-by: Konstantin Shkolnyy <kshk@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2025-05-05s390/configs: Enable VDPA on Nvidia ConnectX-6 network cardKonstantin Shkolnyy
ConnectX-6 is the first VDPA-capable NIC. For earlier NICs, Nvidia implements a VDPA emulation in s/w, which hasn't been validated on s390. Add options necessary for VDPA to work. These options are also added because Fedora has them: CONFIG_VDPA_SIM CONFIG_VDPA_SIM_NET CONFIG_VDPA_SIM_BLOCK CONFIG_VDPA_USER CONFIG_VP_VDPA Signed-off-by: Konstantin Shkolnyy <kshk@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2025-05-05clocksource/i8253: Use raw_spinlock_irqsave() in clockevent_i8253_disable()Sebastian Andrzej Siewior
On x86 during boot, clockevent_i8253_disable() can be invoked via x86_late_time_init -> hpet_time_init() -> pit_timer_init() which happens with enabled interrupts. If some of the old i8253 hardware is actually used then lockdep will notice that i8253_lock is used in hard interrupt context. This causes lockdep to complain because it observed the lock being acquired with interrupts enabled and in hard interrupt context. Make clockevent_i8253_disable() acquire the lock with raw_spinlock_irqsave() to cure this. [ tglx: Massage change log and use guard() ] Fixes: c8c4076723dac ("x86/timer: Skip PIT initialization on modern chipsets") Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/all/20250404133116.p-XRWJXf@linutronix.de
2025-05-05loop: Add sanity check for read/write_iterLizhi Xu
Some file systems do not support read_iter/write_iter, such as selinuxfs in this issue. So before calling them, first confirm that the interface is supported and then call it. It is releavant in that vfs_iter_read/write have the check, and removal of their used caused szybot to be able to hit this issue. Fixes: f2fed441c69b ("loop: stop using vfs_iter__{read,write} for buffered I/O") Reported-by: syzbot+6af973a3b8dfd2faefdc@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=6af973a3b8dfd2faefdc Signed-off-by: Lizhi Xu <lizhi.xu@windriver.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20250428143626.3318717-1-lizhi.xu@windriver.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-05riscv: misaligned: Add handling for ZCB instructionsNylon Chen
Add support for the Zcb extension's compressed half-word instructions (C.LHU, C.LH, and C.SH) in the RISC-V misaligned access trap handler. Signed-off-by: Zong Li <zong.li@sifive.com> Signed-off-by: Nylon Chen <nylon.chen@sifive.com> Fixes: 956d705dd279 ("riscv: Unaligned load/store handling for M_MODE") Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com> Link: https://lore.kernel.org/r/20250411073850.3699180-2-nylon.chen@sifive.com Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
2025-05-05arm64: dts: amlogic: dreambox: fix missing clkc_audio nodeChristian Hewitt
Add the clkc_audio node to fix audio support on Dreambox One/Two. Fixes: 83a6f4c62cb1 ("arm64: dts: meson: add initial support for Dreambox One/Two") CC: stable@vger.kernel.org Suggested-by: Emanuel Strobel <emanuel.strobel@yahoo.com> Signed-off-by: Christian Hewitt <christianshewitt@gmail.com> Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Link: https://lore.kernel.org/r/20250503084443.3704866-1-christianshewitt@gmail.com Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
2025-05-05ALSA: hda/tas2781: select CONFIG_CRC8 for SND_HDA_SCODEC_TAS2781_I2CArnd Bergmann
The crc8 function is used by the common fmwlib module, so this has to be selected directly to avoid a link failure: ERROR: modpost: "crc8" [sound/soc/codecs/snd-soc-tas2781-fmwlib.ko] undefined! Fixes: 9fa6a693ad8d ("ALSA: hda/tas2781: Remove tas2781_spi_fwlib.c and leverage SND_SOC_TAS2781_FMWLIB") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://patch.msgid.link/20250505052303.1812002-1-arnd@kernel.org Signed-off-by: Takashi Iwai <tiwai@suse.de>
2025-05-05ALSA: core: Remove unused snd_jack_set_parentDr. David Alan Gilbert
snd_jack_set_parent() was added as part of 2008's commit e76d8ceaaff9 ("ALSA: Add jack reporting API") but hasn't been used. Remove it. Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://patch.msgid.link/20250502235219.1000429-6-linux@treblig.org
2025-05-05ALSA: core: Remove unused snd_device_get_stateDr. David Alan Gilbert
snd_device_get_state() last use was removed in 2022 by commit 7e1afce5866e ("ALSA: usb-audio: Inform the delayed registration more properly") Remove it. Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://patch.msgid.link/20250502235219.1000429-5-linux@treblig.org
2025-05-05ALSA: seq: Remove unused snd_seq_queue_client_leave_cellsDr. David Alan Gilbert
The last use of snd_seq_queue_client_leave_cells() was removed in 2018 by commit 85d59b57be59 ("ALSA: seq: Remove superfluous snd_seq_queue_client_leave_cells() call") Remove it. Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://patch.msgid.link/20250502235219.1000429-4-linux@treblig.org
2025-05-05ALSA: pcm: Remove unused snd_dmaengine_pcm_open_request_chanDr. David Alan Gilbert
snd_dmaengine_pcm_open_request_chan() last use was removed in 2022's commit b401d1fd8053 ("ASoC: pxa: remove unused board support") Remove it. Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://patch.msgid.link/20250502235219.1000429-3-linux@treblig.org
2025-05-05ALSA: pcm: Remove unused snd_pcm_rate_range_to_bitsDr. David Alan Gilbert
The last use of snd_pcm_rate_range_to_bits() was removed in 2016 by commit b6b6e4d670c9 ("ASoC: topology: Fix setting of stream rates, rate_min and rate_max") Remove it. Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://patch.msgid.link/20250502235219.1000429-2-linux@treblig.org
2025-05-05ASoC: intel: atom: Return -ENOMEM if pcim_iomap() failsPhilipp Stanner
The error checks for pcim_iomap() have the function return -EINVAL. -ENOMEM is a more appropriate error code. Replace -EINVAL with -ENOMEM. Signed-off-by: Philipp Stanner <phasta@kernel.org> Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com> Link: https://patch.msgid.link/20250425081742.61623-6-phasta@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2025-05-05ASoC: intel: atom: Use pure devres PCIPhilipp Stanner
pci_request_regions() is a hybrid function which becomes managed if pcim_enable_device() was called before. This hybrid nature is deprecated and should not be used anymore. Replace pci_request_regions() with the always-managed function pcim_request_all_regions(). Remove the call to pci_release_regions(), since pcim_ functions do cleanup automatically. Pass 0 as length parameter to pcim_iomap(), which is the standard way for ioremapping an entire BAR. Signed-off-by: Philipp Stanner <phasta@kernel.org> Link: https://patch.msgid.link/20250425081742.61623-5-phasta@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2025-05-05ASoC: intel: avs: Use pure devres PCIPhilipp Stanner
pci_request_regions() is a hybrid function which becomes managed if pcim_enable_device() was called before. This hybrid nature is deprecated and should not be used anymore. Replace pci_request_regions() with the always-managed function pcim_request_all_regions(). Remove the goto jump to pci_release_regions(), since pcim_ functions clean up automatically. Signed-off-by: Philipp Stanner <phasta@kernel.org> Link: https://patch.msgid.link/20250425081742.61623-4-phasta@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2025-05-05ASoC: sof: Use pure devres PCIPhilipp Stanner
pci_request_regions() is a hybrid function which becomes managed if pcim_enable_device() was called before. This hybrid nature is deprecated and should not be used anymore. Replace pci_request_regions() with the always-managed function pcim_request_all_regions(). Remove surplus calls to PCI release functions, since pcim_ functions do cleanup automatically. Signed-off-by: Philipp Stanner <phasta@kernel.org> Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com> Link: https://patch.msgid.link/20250425081742.61623-3-phasta@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2025-05-05spi: loopback-test: Do not split 1024-byte hexdumpsGeert Uytterhoeven
spi_test_print_hex_dump() prints buffers holding less than 1024 bytes in full. Larger buffers are truncated: only the first 512 and the last 512 bytes are printed, separated by a truncation message. The latter is confusing in case the buffer holds exactly 1024 bytes, as all data is printed anyway. Fix this by printing buffers holding up to and including 1024 bytes in full. Fixes: 84e0c4e5e2c4ef42 ("spi: add loopback test driver to allow for spi_master regression tests") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://patch.msgid.link/37ee1bc90c6554c9347040adabf04188c8f704aa.1746184171.git.geert+renesas@glider.be Signed-off-by: Mark Brown <broonie@kernel.org>
2025-05-05ASoC: mediatek: mt8188-mt6359: select CONFIG_SND_SOC_MT6359_ACCDETArnd Bergmann
The driver support was added without selecting the codec, which leads to a link failure: aarch64-linux-ld: sound/soc/mediatek/mt8188/mt8188-mt6359.o: in function `mt8188_mt6359_init': mt8188-mt6359.c:(.text+0x19f0): undefined reference to `mt6359_accdet_enable_jack_detect' Fixes: f35d834d67ad ("ASoC: mediatek: mt8188-mt6359: Add accdet headset jack detect support") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://patch.msgid.link/20250505052106.1811802-1-arnd@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2025-05-05drm/i915/slpc: Balance the inc/dec for num_waitersVinay Belgaumkar
As seen in some recent failures, SLPC num_waiters value is < 0. This happens because the inc/dec are not balanced. We should skip decrement for the same conditions as the increment. Currently, we do that for power saving profile mode. This patch also ensures that num_waiters is incremented in the case min_softlimit is at boost freq. It ensures that we don't reduce the frequency while this request is in flight. v2: Add Fixes tags Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/13598 Fixes: f864a29afc32 ("drm/i915/slpc: Optmize waitboost for SLPC") Fixes: 4a82ceb04ad4 ("drm/i915/slpc: Add sysfs for SLPC power profiles") Cc: Sk Anirban <sk.anirban@intel.com> Reviewed-by: Sk Anirban <sk.anirban@intel.com> Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com> Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Link: https://lore.kernel.org/r/20250428183555.3250021-1-vinay.belgaumkar@intel.com (cherry picked from commit d26e55085f4b7a63677670db827541209257b313) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2025-05-05x86/microcode: Consolidate the loader enablement checkingBorislav Petkov (AMD)
Consolidate the whole logic which determines whether the microcode loader should be enabled or not into a single function and call it everywhere. Well, almost everywhere - not in mk_early_pgtbl_32() because there the kernel is running without paging enabled and checking dis_ucode_ldr et al would require physical addresses and uglification of the code. But since this is 32-bit, the easier thing to do is to simply map the initrd unconditionally especially since that mapping is getting removed later anyway by zap_early_initrd_mapping() and avoid the uglification. In doing so, address the issue of old 486er machines without CPUID support, not booting current kernels. [ mingo: Fix no previous prototype for ‘microcode_loader_disabled’ [-Wmissing-prototypes] ] Fixes: 4c585af7180c1 ("x86/boot/32: Temporarily map initrd for microcode loading") Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Cc: <stable@kernel.org> Link: https://lore.kernel.org/r/CANpbe9Wm3z8fy9HbgS8cuhoj0TREYEEkBipDuhgkWFvqX0UoVQ@mail.gmail.com
2025-05-05um: fix _nofault accessesJohannes Berg
Nathan reported [1] that when built with clang, the um kernel crashes pretty much immediately. This turned out to be an issue with the inline assembly I had added, when clang used %rax/%eax for both operands. Reorder it so current->thread.segv_continue is written first, and then the lifetime of _faulted won't have overlap with the lifetime of segv_continue. In the email thread Benjamin also pointed out that current->mm is only NULL for true kernel tasks, but we could do this for a userspace task, so the current->thread.segv_continue logic must be lifted out of the mm==NULL check. Finally, while looking at this, put a barrier() so the NULL assignment to thread.segv_continue cannot be reorder before the possibly faulting operation. Reported-by: Nathan Chancellor <nathan@kernel.org> Closes: https://lore.kernel.org/r/20250402221254.GA384@ax162 [1] Fixes: d1d7f01f7cd3 ("um: mark rodata read-only and implement _nofault accesses") Tested-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-05-04Linux 6.15-rc5v6.15-rc5Linus Torvalds
2025-05-04Merge tag 'perf-tools-fixes-for-v6.15-2025-05-04' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools Pull perf tools fixes from Namhyung Kim: "Just a couple of build fixes on arm64" * tag 'perf-tools-fixes-for-v6.15-2025-05-04' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: perf tools: Fix in-source libperf build perf tools: Fix arm64 build by generating unistd_64.h