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2025-06-10ata: libata-acpi: Do not assume 40 wire cable if no devices are enabledTasos Sahanidis
On at least an ASRock 990FX Extreme 4 with a VIA VT6330, the devices have not yet been enabled by the first time ata_acpi_cbl_80wire() is called. This means that the ata_for_each_dev loop is never entered, and a 40 wire cable is assumed. The VIA controller on this board does not report the cable in the PCI config space, thus having to fall back to ACPI even though no SATA bridge is present. The _GTM values are correctly reported by the firmware through ACPI, which has already set up faster transfer modes, but due to the above the controller is forced down to a maximum of UDMA/33. Resolve this by modifying ata_acpi_cbl_80wire() to directly return the cable type. First, an unknown cable is assumed which preserves the mode set by the firmware, and then on subsequent calls when the devices have been enabled, an 80 wire cable is correctly detected. Since the function now directly returns the cable type, it is renamed to ata_acpi_cbl_pata_type(). Signed-off-by: Tasos Sahanidis <tasos@tasossah.com> Link: https://lore.kernel.org/r/20250519085945.1399466-1-tasos@tasossah.com Signed-off-by: Niklas Cassel <cassel@kernel.org>
2025-06-10ata: pata_via: Force PIO for ATAPI devices on VT6415/VT6330Tasos Sahanidis
The controller has a hardware bug that can hard hang the system when doing ATAPI DMAs without any trace of what happened. Depending on the device attached, it can also prevent the system from booting. In this case, the system hangs when reading the ATIP from optical media with cdrecord -vvv -atip on an _NEC DVD_RW ND-4571A 1-01 and an Optiarc DVD RW AD-7200A 1.06 attached to an ASRock 990FX Extreme 4, running at UDMA/33. The issue can be reproduced by running the same command with a cygwin build of cdrecord on WinXP, although it requires more attempts to cause it. The hang in that case is also resolved by forcing PIO. It doesn't appear that VIA has produced any drivers for that OS, thus no known workaround exists. HDDs attached to the controller do not suffer from any DMA issues. Cc: stable@vger.kernel.org Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/916677 Signed-off-by: Tasos Sahanidis <tasos@tasossah.com> Link: https://lore.kernel.org/r/20250519085508.1398701-1-tasos@tasossah.com Signed-off-by: Niklas Cassel <cassel@kernel.org>
2025-06-10cpufreq: Convert `/// SAFETY` lines to `# Safety` sectionsViresh Kumar
Replace `/// SAFETY` comments in doc comments with proper `# Safety` sections, as per rustdoc conventions. Also mark the C FFI callbacks as `unsafe` to correctly reflect their safety requirements. Reported-by: Miguel Ojeda <ojeda@kernel.org> Closes: https://github.com/Rust-for-Linux/linux/issues/1169 Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2025-06-10drm/vc4: fix infinite EPROBE_DEFER loopGabriel Dalimonte
`vc4_hdmi_audio_init` calls `devm_snd_dmaengine_pcm_register` which may return EPROBE_DEFER. Calling `drm_connector_hdmi_audio_init` adds a child device. The driver model docs[1] state that adding a child device prior to returning EPROBE_DEFER may result in an infinite loop. [1] https://www.kernel.org/doc/html/v6.14/driver-api/driver-model/driver.html Fixes: 9640f1437a88 ("drm/vc4: hdmi: switch to using generic HDMI Codec infrastructure") Signed-off-by: Gabriel Dalimonte <gabriel.dalimonte@gmail.com> Link: https://lore.kernel.org/r/20250601-vc4-audio-inf-probe-v2-1-9ad43c7b6147@gmail.com Signed-off-by: Maxime Ripard <mripard@kernel.org>
2025-06-10MAINTAINERS: .mailmap: Update Hans de Goede's email addressHans de Goede
I'm moving all my kernel work over to using my kernel.org email address. Update .mailmap and MAINTAINER entries still using hdegoede@redhat.com. Signed-off-by: Hans de Goede <hansg@kernel.org> Link: https://lore.kernel.org/r/20250609143558.42941-2-hansg@kernel.org Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-06-10platform/x86: dell_rbu: Bump versionStuart Hayes
Bump the module version. Signed-off-by: Stuart Hayes <stuart.w.hayes@gmail.com> Link: https://lore.kernel.org/r/20250609184659.7210-6-stuart.w.hayes@gmail.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-06-10platform/x86: dell_rbu: Stop overwriting data bufferStuart Hayes
The dell_rbu driver will use memset() to clear the data held by each packet when it is no longer needed (when the driver is unloaded, the packet size is changed, etc). The amount of memory that is cleared (before this patch) is the normal packet size. However, the last packet in the list may be smaller. Fix this to only clear the memory actually used by each packet, to prevent it from writing past the end of data buffer. Because the packet data buffers are allocated with __get_free_pages() (in page-sized increments), this bug could only result in a buffer being overwritten when a packet size larger than one page is used. The only user of the dell_rbu module should be the Dell BIOS update program, which uses a packet size of 4096, so no issues should be seen without the patch, it just blocks the possiblity. Fixes: 6c54c28e69f2 ("[PATCH] dell_rbu: new Dell BIOS update driver") Signed-off-by: Stuart Hayes <stuart.w.hayes@gmail.com> Link: https://lore.kernel.org/r/20250609184659.7210-5-stuart.w.hayes@gmail.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-06-10platform/x86: dell_rbu: Fix list usageStuart Hayes
Pass the correct list head to list_for_each_entry*() when looping through the packet list. Without this patch, reading the packet data via sysfs will show the data incorrectly (because it starts at the wrong packet), and clearing the packet list will result in a NULL pointer dereference. Fixes: d19f359fbdc6 ("platform/x86: dell_rbu: don't open code list_for_each_entry*()") Signed-off-by: Stuart Hayes <stuart.w.hayes@gmail.com> Link: https://lore.kernel.org/r/20250609184659.7210-3-stuart.w.hayes@gmail.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-06-10platform/x86: dell_rbu: Fix lock context warningStuart Hayes
Fix a sparse lock context warning. Signed-off-by: Stuart Hayes <stuart.w.hayes@gmail.com> Link: https://lore.kernel.org/r/20250609184659.7210-2-stuart.w.hayes@gmail.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-06-10platform/x86/amd: pmf: Simplify error flow in amd_pmf_init_smart_pc()Mario Limonciello
commit 5b1122fc4995f ("platform/x86/amd/pmf: fix cleanup in amd_pmf_init_smart_pc()") adjusted the error handling flow to use a ladder but this isn't actually needed because work is only scheduled in amd_pmf_start_policy_engine() and with device managed cleanups pointers for allocations don't need to be freed. Adjust the error flow to a single call to amd_pmf_deinit_smart_pc() for the cases that need to clean up. Cc: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/20250512211154.2510397-4-superm1@kernel.org Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Link: https://lore.kernel.org/r/20250522003457.1516679-4-superm1@kernel.org Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-06-10platform/x86/amd: pmf: Prevent amd_pmf_tee_deinit() from running twiceMario Limonciello
If any of the tee init fails, pass up the errors and clear the tee_ctx pointer. This will prevent cleaning up multiple times. Fixes: ac052d8c08f9d ("platform/x86/amd/pmf: Add PMF TEE interface") Suggested-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/20250512211154.2510397-3-superm1@kernel.org Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Link: https://lore.kernel.org/r/20250522003457.1516679-3-superm1@kernel.org Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-06-10platform/x86/amd: pmf: Use device managed allocationsMario Limonciello
If setting up smart PC fails for any reason then this can lead to a double free when unloading amd-pmf. This is because dev->buf was freed but never set to NULL and is again freed in amd_pmf_remove(). To avoid subtle allocation bugs in failures leading to a double free change all allocations into device managed allocations. Fixes: 5b1122fc4995f ("platform/x86/amd/pmf: fix cleanup in amd_pmf_init_smart_pc()") Link: https://lore.kernel.org/r/20250512211154.2510397-2-superm1@kernel.org Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Link: https://lore.kernel.org/r/20250522003457.1516679-2-superm1@kernel.org Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-06-09Merge tag 'powerpc-6.16-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Madhavan Srinivasan: - a couple of fixes for out of bounds issues in memtrace and vas Thanks to Ritesh Harjani (IBM), Haren Myneni, and Jonathan Greental * tag 'powerpc-6.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/vas: Return -EINVAL if the offset is non-zero in mmap() powerpc/powernv/memtrace: Fix out of bounds issue in memtrace mmap
2025-06-10powerpc/vas: Return -EINVAL if the offset is non-zero in mmap()Haren Myneni
The user space calls mmap() to map VAS window paste address and the kernel returns the complete mapped page for each window. So return -EINVAL if non-zero is passed for offset parameter to mmap(). See Documentation/arch/powerpc/vas-api.rst for mmap() restrictions. Co-developed-by: Jonathan Greental <yonatan02greental@gmail.com> Signed-off-by: Jonathan Greental <yonatan02greental@gmail.com> Reported-by: Jonathan Greental <yonatan02greental@gmail.com> Fixes: dda44eb29c23 ("powerpc/vas: Add VAS user space API") Signed-off-by: Haren Myneni <haren@linux.ibm.com> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/20250610021227.361980-2-maddy@linux.ibm.com
2025-06-10powerpc/powernv/memtrace: Fix out of bounds issue in memtrace mmapRitesh Harjani (IBM)
memtrace mmap issue has an out of bounds issue. This patch fixes the by checking that the requested mapping region size should stay within the allocated region size. Reported-by: Jonathan Greental <yonatan02greental@gmail.com> Fixes: 08a022ad3dfa ("powerpc/powernv/memtrace: Allow mmaping trace buffers") Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/20250610021227.361980-1-maddy@linux.ibm.com
2025-06-09scsi: error: alua: I/O errors for ALUA state transitionsRajashekhar M A
When a host is configured with a few LUNs and I/O is running, injecting FC faults repeatedly leads to path recovery problems. The LUNs have 4 paths each and 3 of them come back active after say an FC fault which makes 2 of the paths go down, instead of all 4. This happens after several iterations of continuous FC faults. Reason here is that we're returning an I/O error whenever we're encountering sense code 06/04/0a (LOGICAL UNIT NOT ACCESSIBLE, ASYMMETRIC ACCESS STATE TRANSITION) instead of retrying. Signed-off-by: Rajashekhar M A <rajs@netapp.com> Signed-off-by: Hannes Reinecke <hare@suse.de> Link: https://lore.kernel.org/r/20250606135924.27397-1-hare@kernel.org Reviewed-by: Lee Duncan <lduncan@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-06-09scsi: storvsc: Increase the timeouts to storvsc_timeoutDexuan Cui
Currently storvsc_timeout is only used in storvsc_sdev_configure(), and 5s and 10s are used elsewhere. It turns out that rarely the 5s is not enough on Azure, so let's use storvsc_timeout everywhere. In case a timeout happens and storvsc_channel_init() returns an error, close the VMBus channel so that any host-to-guest messages in the channel's ringbuffer, which might come late, can be safely ignored. Add a "const" to storvsc_timeout. Cc: stable@kernel.org Signed-off-by: Dexuan Cui <decui@microsoft.com> Link: https://lore.kernel.org/r/1749243459-10419-1-git-send-email-decui@microsoft.com Reviewed-by: Long Li <longli@microsoft.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-06-09Merge tag 'for-net-2025-06-05' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth Luiz Augusto von Dentz says: ==================== bluetooth pull request for net: - MGMT: Fix UAF on mgmt_remove_adv_monitor_complete - MGMT: Protect mgmt_pending list with its own lock - hci_core: fix list_for_each_entry_rcu usage - btintel_pcie: Increase the tx and rx descriptor count - btintel_pcie: Reduce driver buffer posting to prevent race condition - btintel_pcie: Fix driver not posting maximum rx buffers * tag 'for-net-2025-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth: Bluetooth: MGMT: Protect mgmt_pending list with its own lock Bluetooth: MGMT: Fix UAF on mgmt_remove_adv_monitor_complete Bluetooth: btintel_pcie: Reduce driver buffer posting to prevent race condition Bluetooth: btintel_pcie: Increase the tx and rx descriptor count Bluetooth: btintel_pcie: Fix driver not posting maximum rx buffers Bluetooth: hci_core: fix list_for_each_entry_rcu usage ==================== Link: https://patch.msgid.link/20250605191136.904411-1-luiz.dentz@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-09net_sched: sch_sfq: fix a potential crash on gso_skb handlingEric Dumazet
SFQ has an assumption of always being able to queue at least one packet. However, after the blamed commit, sch->q.len can be inflated by packets in sch->gso_skb, and an enqueue() on an empty SFQ qdisc can be followed by an immediate drop. Fix sfq_drop() to properly clear q->tail in this situation. Tested: ip netns add lb ip link add dev to-lb type veth peer name in-lb netns lb ethtool -K to-lb tso off # force qdisc to requeue gso_skb ip netns exec lb ethtool -K in-lb gro on # enable NAPI ip link set dev to-lb up ip -netns lb link set dev in-lb up ip addr add dev to-lb 192.168.20.1/24 ip -netns lb addr add dev in-lb 192.168.20.2/24 tc qdisc replace dev to-lb root sfq limit 100 ip netns exec lb netserver netperf -H 192.168.20.2 -l 100 & netperf -H 192.168.20.2 -l 100 & netperf -H 192.168.20.2 -l 100 & netperf -H 192.168.20.2 -l 100 & Fixes: a53851e2c321 ("net: sched: explicit locking in gso_cpu fallback") Reported-by: Marcus Wichelmann <marcus.wichelmann@hetzner-cloud.de> Closes: https://lore.kernel.org/netdev/9da42688-bfaa-4364-8797-e9271f3bdaef@hetzner-cloud.de/ Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://patch.msgid.link/20250606165127.3629486-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-09smb: client: disable path remapping with POSIX extensionsPhilipp Kerling
If SMB 3.1.1 POSIX Extensions are available and negotiated, the client should be able to use all characters and not remap anything. Currently, the user has to explicitly request this behavior by specifying the "nomapposix" mount option. Link: https://lore.kernel.org/4195bb677b33d680e77549890a4f4dd3b474ceaf.camel@rx2.rx-server.de Signed-off-by: Philipp Kerling <pkerling@casix.org> Reviewed-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
2025-06-09Merge branch '6.16/scsi-queue' into 6.16/scsi-fixesMartin K. Petersen
Pull in remaining fixes from queue branch. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-06-09scsi: s390: zfcp: Ensure synchronous unit_addPeter Oberparleiter
Improve the usability of the unit_add sysfs attribute by ensuring that the associated FCP LUN scan processing is completed synchronously. This enables configuration tooling to consistently determine the end of the scan process to allow for serialization of follow-on actions. While the scan process associated with unit_add typically completes synchronously, it is deferred to an asynchronous background process if unit_add is used before initial remote port scanning has completed. This occurs when unit_add is used immediately after setting the associated FCP device online. To ensure synchronous unit_add processing, wait for remote port scanning to complete before initiating the FCP LUN scan. Cc: stable@vger.kernel.org Reviewed-by: M Nikhil <nikh1092@linux.ibm.com> Reviewed-by: Nihar Panda <niharp@linux.ibm.com> Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com> Signed-off-by: Nihar Panda <niharp@linux.ibm.com> Link: https://lore.kernel.org/r/20250603182252.2287285-2-niharp@linux.ibm.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-06-09scsi: iscsi: Fix incorrect error path labels for flashnode operationsAlok Tiwari
Correct the error handling goto labels used when host lookup fails in various flashnode-related event handlers: - iscsi_new_flashnode() - iscsi_del_flashnode() - iscsi_login_flashnode() - iscsi_logout_flashnode() - iscsi_logout_flashnode_sid() scsi_host_put() is not required when shost is NULL, so jumping to the correct label avoids unnecessary operations. These functions previously jumped to the wrong goto label (put_host), which did not match the intended cleanup logic. Use the correct exit labels (exit_new_fnode, exit_del_fnode, etc.) to ensure proper error handling. Also remove the unused put_host label under iscsi_new_flashnode() as it is no longer needed. No functional changes beyond accurate error path correction. Fixes: c6a4bb2ef596 ("[SCSI] scsi_transport_iscsi: Add flash node mgmt support") Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com> Link: https://lore.kernel.org/r/20250530193012.3312911-1-alok.a.tiwari@oracle.com Reviewed-by: Mike Christie <michael.christie@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-06-09scsi: mvsas: Fix typos in per-phy comments and SAS cmd port registersAnkit Chauhan
Spelling fixes: Deocder --> Decoder Memroy --> Memory This is a non-functional change aimed at improving code clarity. Signed-off-by: Ankit Chauhan <ankitchauhan2065@gmail.com> Link: https://lore.kernel.org/r/20250528110604.59528-1-ankitchauhan2065@gmail.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-06-09SPI: omap2-mcspi: Fix SPI CS behaviour aroundMark Brown
Merge series from Félix Piédallu <felix.piedallu@non.se.com>: These patches fix the behaviour of the SPI Chip Select of the OMAP2 MCSPI driver used on TI SoCs. The omap2-mcspi driver supports the use of multi mode (multichannel in TI documentation). In this mode, the CS is asserted and deasserted by the hardware. The multi mode is disabled for messages when cs_change=0 for all transfers (e.g when CS is kept asserted between transfers of a same message). The multi mode also needs to be disabled for messages when cs_change=1 on the last transfer (e.g when CS is kept asserted after the WHOLE message), and the message right after. Currently, that is not the case and it CS is deasserted by hardware when it shouldn't. This breaks peripheral drivers that send multiple messages with the CS asserted in between. Patch 1 ensures that multi mode is disabled when cs_change=1 on the last transfer of the message. Patch 2 ensures that multi mode is disable on a message following one with cs_change=1 on the last transfer. This is the case for the TPM TIS SPI driver that uses this logic for flow control purposes. Tested on an AM6442 platform with a TPM ST33HTPH2X32AHE4.
2025-06-09ARC: Replace __ASSEMBLY__ with __ASSEMBLER__ in the non-uapi headersThomas Huth
While the GCC and Clang compilers already define __ASSEMBLER__ automatically when compiling assembly code, __ASSEMBLY__ is a macro that only gets defined by the Makefiles in the kernel. This can be very confusing when switching between userspace and kernelspace coding, or when dealing with uapi headers that rather should use __ASSEMBLER__ instead. So let's standardize on the __ASSEMBLER__ macro that is provided by the compilers now. This is a completely mechanical patch (done with a simple "sed -i" statement). Cc: linux-snps-arc@lists.infradead.org Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Vineet Gupta <vgupta@kernel.org>
2025-06-09ARC: Replace __ASSEMBLY__ with __ASSEMBLER__ in uapi headersThomas Huth
__ASSEMBLY__ is only defined by the Makefile of the kernel, so this is not really useful for uapi headers (unless the userspace Makefile defines it, too). Let's switch to __ASSEMBLER__ which gets set automatically by the compiler when compiling assembly code. Cc: linux-snps-arc@lists.infradead.org Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Vineet Gupta <vgupta@kernel.org>
2025-06-09ARC: unwind: Use built-in sort swap to reduce code size and improve performanceYu-Chun Lin
The custom swap function used in sort() was identical to the default built-in sort swap. Remove the custom swap function and passes NULL to sort(), allowing it to use the default swap function. This change reduces code size and improves performance, particularly when CONFIG_MITIGATION_RETPOLINE is enabled. With RETPOLINE mitigation, indirect function calls incur significant overhead, and using the default swap function avoids this cost. $ ./scripts/bloat-o-meter ./unwind.o.old ./unwind.o.new add/remove: 0/1 grow/shrink: 0/1 up/down: 0/-22 (-22) Function old new delta init_unwind_hdr.constprop 544 540 -4 swap_eh_frame_hdr_table_entries 18 - -18 Total: Before=4410, After=4388, chg -0.50% Signed-off-by: Yu-Chun Lin <eleanor15x@gmail.com> Signed-off-by: Vineet Gupta <vgupta@kernel.org>
2025-06-09ARC: atomics: Implement arch_atomic64_cmpxchg using _relaxedJason Gunthorpe
The core atomic code has a number of macros where it elaborates architecture primitives into more functions. ARC uses arch_atomic64_cmpxchg() as it's architecture primitive which disable alot of the additional functions. Instead provide arch_cmpxchg64_relaxed() as the primitive and rely on the core macros to create arch_cmpxchg64(). The macros will also provide other functions, for instance, try_cmpxchg64_release(), giving a more complete implementation. Suggested-by: Mark Rutland <mark.rutland@arm.com> Link: https://lore.kernel.org/r/Z0747n5bSep4_1VX@J2N7QTR9R3 Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Vineet Gupta <vgupta@kernel.org>
2025-06-09cpupower: split unitdir from libdir in MakefileFrancesco Poli (wintermute)
Improve the installation procedure for the systemd service unit 'cpupower.service', to be more flexible. Some distros install libraries to /usr/lib64/, but systemd service units have to be installed to /usr/lib/systemd/system: as a consequence, the installation procedure should not assume that systemd service units can be installed to ${libdir}/systemd/system ... Define a dedicated variable ("unitdir") in the Makefile. Link: https://lore.kernel.org/linux-pm/260b6d79-ab61-43b7-a0eb-813e257bc028@leemhuis.info/T/#m0601940ab439d5cbd288819d2af190ce59e810e6 Fixes: 9c70b779ad91 ("cpupower: add a systemd service to run cpupower") Link: https://lore.kernel.org/r/20250521211656.65646-1-invernomuto@paranoici.org Signed-off-by: Francesco Poli (wintermute) <invernomuto@paranoici.org> Tested-by: Thorsten Leemhuis <linux@leemhuis.info> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-06-09selftests/x86: Add a test to detect infinite SIGTRAP handler loopXin Li (Intel)
When FRED is enabled, if the Trap Flag (TF) is set without an external debugger attached, it can lead to an infinite loop in the SIGTRAP handler. To avoid this, the software event flag in the augmented SS must be cleared, ensuring that no single-step trap remains pending when ERETU completes. This test checks for that specific scenario—verifying whether the kernel correctly prevents an infinite SIGTRAP loop in this edge case when FRED is enabled. The test should _always_ pass with IDT event delivery, thus no need to disable the test even when FRED is not enabled. Signed-off-by: Xin Li (Intel) <xin@zytor.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Tested-by: Sohil Mehta <sohil.mehta@intel.com> Cc:stable@vger.kernel.org Link: https://lore.kernel.org/all/20250609084054.2083189-3-xin%40zytor.com
2025-06-09x86/fred/signal: Prevent immediate repeat of single step trap on return from ↵Xin Li (Intel)
SIGTRAP handler Clear the software event flag in the augmented SS to prevent immediate repeat of single step trap on return from SIGTRAP handler if the trap flag (TF) is set without an external debugger attached. Following is a typical single-stepping flow for a user process: 1) The user process is prepared for single-stepping by setting RFLAGS.TF = 1. 2) When any instruction in user space completes, a #DB is triggered. 3) The kernel handles the #DB and returns to user space, invoking the SIGTRAP handler with RFLAGS.TF = 0. 4) After the SIGTRAP handler finishes, the user process performs a sigreturn syscall, restoring the original state, including RFLAGS.TF = 1. 5) Goto step 2. According to the FRED specification: A) Bit 17 in the augmented SS is designated as the software event flag, which is set to 1 for FRED event delivery of SYSCALL, SYSENTER, or INT n. B) If bit 17 of the augmented SS is 1 and ERETU would result in RFLAGS.TF = 1, a single-step trap will be pending upon completion of ERETU. In step 4) above, the software event flag is set upon the sigreturn syscall, and its corresponding ERETU would restore RFLAGS.TF = 1. This combination causes a pending single-step trap upon completion of ERETU. Therefore, another #DB is triggered before any user space instruction is executed, which leads to an infinite loop in which the SIGTRAP handler keeps being invoked on the same user space IP. Fixes: 14619d912b65 ("x86/fred: FRED entry/exit and dispatch code") Suggested-by: H. Peter Anvin (Intel) <hpa@zytor.com> Signed-off-by: Xin Li (Intel) <xin@zytor.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Tested-by: Sohil Mehta <sohil.mehta@intel.com> Cc:stable@vger.kernel.org Link: https://lore.kernel.org/all/20250609084054.2083189-2-xin%40zytor.com
2025-06-09spi: stm32-ospi: Make usage of reset_control_acquire/release() APIPatrice Chotard
As ospi reset is consumed by both OMM and OSPI drivers, use the reset acquire/release mechanism which ensure exclusive reset usage. This avoid to call reset_control_get/put() in OMM driver each time we need to reset OSPI children and guarantee the reset line stays deasserted. During resume, OMM driver takes temporarily control of reset. Fixes: 79b8a705e26c ("spi: stm32: Add OSPI driver") Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Link: https://patch.msgid.link/20250609-b4-upstream_ospi_reset_update-v6-1-5b602b567e8a@foss.st.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-06-09drm/xe/svm: Fix regression disallowing 64K SVM migrationMaarten Lankhorst
When changing the condition from >= SZ_64K, it was changed to <= SZ_64K. This disallows migration of 64K, which is the exact minimum allowed. Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/5057 Fixes: 794f5493f518 ("drm/xe: Strict migration policy for atomic SVM faults") Cc: stable@vger.kernel.org Cc: Matthew Brost <matthew.brost@intel.com> Cc: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com> Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com> Signed-off-by: Maarten Lankhorst <dev@lankhorst.se> Link: https://lore.kernel.org/r/20250521090102.2965100-1-dev@lankhorst.se (cherry picked from commit 531bef26d189b28bf0d694878c0e064b30990b6c) Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
2025-06-09accel/amdxdna: Fix incorrect PSP firmware sizeLizhi Hou
The incorrect PSP firmware size is used for initializing. It may cause error for newer version firmware. Fixes: 8c9ff1b181ba ("accel/amdxdna: Add a new driver for AMD AI Engine") Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Lizhi Hou <lizhi.hou@amd.com> Link: https://lore.kernel.org/r/20250604143217.1386272-1-lizhi.hou@amd.com
2025-06-09spi: offload: check offload ops existence before disabling the triggerAndres Urian Florez
Add a safe guard in spi_offload_trigger to check the existence of offload->ops before invoking the trigger_disable callback Signed-off-by: Andres Urian Florez <andres.emb.sys@gmail.com> Link: https://patch.msgid.link/20250608230422.325360-1-andres.emb.sys@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-06-09pinctrl: tb10x: Drop of_match_ptr for ID tableKrzysztof Kozlowski
The driver can match only via the DT table so the table should be always used and the of_match_ptr does not have any sense (this also allows ACPI matching via PRP0001, even though it might not be relevant here). This also fixes !CONFIG_OF warning: pinctrl-tb10x.c:815:34: warning: unused variable 'tb10x_pinctrl_dt_ids' [-Wunused-const-variable] Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202505301317.EI1caRC0-lkp@intel.com/ Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/20250601105100.27927-2-krzysztof.kozlowski@linaro.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2025-06-09pinctrl: MAINTAINERS: Drop bouncing Jianlong HuangKrzysztof Kozlowski
Emails to Jianlong Huang bounce since 9 months, so drop the person from maintainers: 550 5.4.1 Recipient address rejected: Access denied. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/20250528104514.184122-2-krzysztof.kozlowski@linaro.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2025-06-09pinctrl: st: Drop unused st_gpio_bank() functionKrzysztof Kozlowski
Static inline st_gpio_bank() function is not referenced: pinctrl-st.c:377:19: error: unused function 'st_gpio_bank' [-Werror,-Wunused-function] Fixes: 701016c0cba5 ("pinctrl: st: Add pinctrl and pinconf support.") Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/20250528092201.52132-2-krzysztof.kozlowski@linaro.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2025-06-09pinctrl: qcom: pinctrl-qcm2290: Add missing pinsWojciech Slenska
Added the missing pins to the qcm2290_pins table. Signed-off-by: Wojciech Slenska <wojciech.slenska@gmail.com> Fixes: 48e049ef1238 ("pinctrl: qcom: Add QCM2290 pinctrl driver") Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/20250523101437.59092-1-wojciech.slenska@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2025-06-09pinctrl: qcom: switch to devm_gpiochip_add_data()Dmitry Baryshkov
In order to simplify cleanup actions, use devres-enabled version of gpiochip_add_data(). As the msm_pinctrl_remove() function is now empty, drop it and all its calls from the corresponding pinctrl drivers. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/20250513-pinctrl-msm-fix-v2-3-249999af0fc1@oss.qualcomm.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2025-06-09x86/platform/amd: replace down_timeout() with down_interruptible()Jake Hillion
Currently hsmp_send_message() uses down_timeout() with a 100ms timeout to take the semaphore. However __hsmp_send_message(), the content of the critical section, has a sleep in it. On systems with significantly delayed scheduling behaviour this may take over 100ms. Convert this method to down_interruptible(). Leave the error handling the same as the documentation currently is not specific about what error is returned. Previous behaviour: a caller who competes with another caller stuck in the critical section due to scheduler delays would receive -ETIME. New behaviour: a caller who competes with another caller stuck in the critical section due to scheduler delays will complete successfully. Reviewed-by: Suma Hegde <suma.hegde@amd.com> Tested-by: Suma Hegde <suma.hegde@amd.com> Signed-off-by: Jake Hillion <jake@hillion.co.uk> Link: https://lore.kernel.org/r/20250605-amd-hsmp-v2-2-a811bc3dd74a@hillion.co.uk Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-06-09x86/platform/amd: move final timeout check to after final sleepJake Hillion
__hsmp_send_message sleeps between result read attempts and has a timeout of 100ms. Under extreme load it's possible for these sleeps to take a long time, exceeding the 100ms. In this case the current code does not check the register and fails with ETIMEDOUT. Refactor the loop to ensure there is at least one read of the register after a sleep of any duration. This removes instances of ETIMEDOUT with a single caller, even with a misbehaving scheduler. Tested on AMD Bergamo machines. Suggested-by: Blaise Sanouillet <linux@blaise.sanouillet.com> Reviewed-by: Suma Hegde <suma.hegde@amd.com> Tested-by: Suma Hegde <suma.hegde@amd.com> Signed-off-by: Jake Hillion <jake@hillion.co.uk> Link: https://lore.kernel.org/r/20250605-amd-hsmp-v2-1-a811bc3dd74a@hillion.co.uk Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-06-09platform/x86/amd: pmc: Clear metrics table at start of cycleMario Limonciello
The area of memory that contains the metrics table may contain garbage when the cycle starts. This normally doesn't matter because the cycle itself will populate it with valid data, however commit 9f5595d5f03fd ("platform/x86/amd: pmc: Require at least 2.5 seconds between HW sleep cycles") started to use it during the check() phase. Depending upon what garbage is in the table it's possible that the system will wait 2.5 seconds for even the first cycle, which will be visible to a user. To prevent this from happening explicitly clear the table when logging is started. Fixes: 9f5595d5f03fd ("platform/x86/amd: pmc: Require at least 2.5 seconds between HW sleep cycles") Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Link: https://lore.kernel.org/r/20250603132412.3555302-1-superm1@kernel.org Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-06-09platform/x86/intel: power-domains: Fix error code in tpmi_init()Dan Carpenter
Return -ENOMEM instead of success if kcalloc() fails. Fixes: e37be5d85c60 ("platform/x86/intel: power-domains: Add interface to get Linux die ID") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/aEKvIGCt6d8Gcx4S@stanley.mountain Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-06-09platform/x86: samsung-galaxybook: Add SAM0426Joshua Grisham
Add device ID SAM0426 (Notebook 9 Pro and similar devices) as reported and tested by GitHub user "diego-karsa" [1]. [1]: https://github.com/joshuagrisham/samsung-galaxybook-extras/issues/69 Signed-off-by: Joshua Grisham <josh@joshuagrisham.com> Reviewed-by: Armin Wolf <W_Armin@gmx.de> Link: https://lore.kernel.org/r/20250606130909.207047-1-josh@joshuagrisham.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-06-09platform/x86/intel-uncore-freq: Fail module load when plat_info is NULLSrinivas Pandruvada
Address a Smatch static checker warning regarding an unchecked dereference in the function call: set_cdie_id(i, cluster_info, plat_info) when plat_info is NULL. Instead of addressing this one case, in general if plat_info is NULL then it can cause other issues. For example in a two package system it will give warning for duplicate sysfs entry as package ID will be always zero for both packages when creating string for attribute group name. plat_info is derived from TPMI ID TPMI_BUS_INFO, which is integral to the core TPMI design. Therefore, it should not be NULL on a production platform. Consequently, the module should fail to load if plat_info is NULL. Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Closes: https://lore.kernel.org/platform-driver-x86/aEKvGCLd1qmX04Tc@stanley.mountain/T/#u Fixes: 8a54e2253e4c ("platform/x86/intel-uncore-freq: Uncore frequency control via TPMI") Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20250606205300.2384494-1-srinivas.pandruvada@linux.intel.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-06-09platform/x86: ideapad-laptop: use usleep_range() for EC pollingRong Zhang
It was reported that ideapad-laptop sometimes causes some recent (since 2024) Lenovo ThinkBook models shut down when: - suspending/resuming - closing/opening the lid - (dis)connecting a charger - reading/writing some sysfs properties, e.g., fan_mode, touchpad - pressing down some Fn keys, e.g., Brightness Up/Down (Fn+F5/F6) - (seldom) loading the kmod The issue has existed since the launch day of such models, and there have been some out-of-tree workarounds (see Link:) for the issue. One disables some functionalities, while another one simply shortens IDEAPAD_EC_TIMEOUT. The disabled functionalities have read_ec_data() in their call chains, which calls schedule() between each poll. It turns out that these models suffer from the indeterminacy of schedule() because of their low tolerance for being polled too frequently. Sometimes schedule() returns too soon due to the lack of ready tasks, causing the margin between two polls to be too short. In this case, the command is somehow aborted, and too many subsequent polls (they poll for "nothing!") may eventually break the state machine in the EC, resulting in a hard shutdown. This explains why shortening IDEAPAD_EC_TIMEOUT works around the issue - it reduces the total number of polls sent to the EC. Even when it doesn't lead to a shutdown, frequent polls may also disturb the ongoing operation and notably delay (+ 10-20ms) the availability of EC response. This phenomenon is unlikely to be exclusive to the models mentioned above, so dropping the schedule() manner should also slightly improve the responsiveness of various models. Fix these issues by migrating to usleep_range(150, 300). The interval is chosen to add some margin to the minimal 50us and considering EC responses are usually available after 150-2500us based on my test. It should be enough to fix these issues on all models subject to the EC bug without introducing latency on other models. Tested on ThinkBook 14 G7+ ASP and solved both issues. No regression was introduced in the test on a model without the EC bug (ThinkBook X IMH, thanks Eric). Link: https://github.com/ty2/ideapad-laptop-tb2024g6plus/commit/6c5db18c9e8109873c2c90a7d2d7f552148f7ad4 Link: https://github.com/ferstar/ideapad-laptop-tb/commit/42d1e68e5009529d31bd23f978f636f79c023e80 Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218771 Fixes: 6a09f21dd1e2 ("ideapad: add ACPI helpers") Cc: stable@vger.kernel.org Tested-by: Felix Yan <felixonmars@archlinux.org> Tested-by: Eric Long <i@hack3r.moe> Tested-by: Jianfei Zhang <zhangjianfei3@gmail.com> Tested-by: Mingcong Bai <jeffbai@aosc.io> Tested-by: Minh Le <minhld139@gmail.com> Tested-by: Sicheng Zhu <Emmet_Z@outlook.com> Signed-off-by: Rong Zhang <i@rong.moe> Link: https://lore.kernel.org/r/20250525201833.37939-1-i@rong.moe Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-06-08spi: spi-pci1xxxx: Fix error code in probeDan Carpenter
Return the error code if pci_alloc_irq_vectors() fails. Don't return success. Fixes: b4608e944177 ("spi: spi-pci1xxxx: Fix Probe failure with Dual SPI instance with INTx interrupts") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by: Thangaraj Samynathan <thangaraj.s@microchip.com> Link: https://patch.msgid.link/aEKvDrUxD19GWi0u@stanley.mountain Signed-off-by: Mark Brown <broonie@kernel.org>
2025-06-08spi: loongson: Fix build warnings about export.hHuacai Chen
After commit a934a57a42f64a4 ("scripts/misc-check: check missing #include <linux/export.h> when W=1") and 7d95680d64ac8e836c ("scripts/misc-check: check unnecessary #include <linux/export.h> when W=1"), we get some build warnings with W=1: drivers/spi/spi-loongson-core.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing So fix these build warnings for SPI/Loongson. Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Link: https://patch.msgid.link/20250608142939.172108-1-chenhuacai@loongson.cn Signed-off-by: Mark Brown <broonie@kernel.org>
generated by cgit (git 2.34.1) at 2025-09-13 20:24:56 +0000