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2025-01-20Merge branch 'for-6.14-cpu_sync-fixup' into for-linusPetr Mladek
2025-01-20net: phy: realtek: HWMON support for standalone versions of RTL8221B and RTL8251Aleksander Jan Bajkowski
HWMON support has been added for the RTL8221/8251 PHYs integrated together with the MAC inside the RTL8125/8126 chips. This patch extends temperature reading support for standalone variants of the mentioned PHYs. I don't know whether the earlier revisions of the RTL8226 also have a built-in temperature sensor, so they have been skipped for now. Tested on RTL8221B-VB-CG. Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-01-20tcp_cubic: fix incorrect HyStart round start detectionMahdi Arghavani
I noticed that HyStart incorrectly marks the start of rounds, leading to inaccurate measurements of ACK train lengths and resetting the `ca->sample_cnt` variable. This inaccuracy can impact HyStart's functionality in terminating exponential cwnd growth during Slow-Start, potentially degrading TCP performance. The issue arises because the changes introduced in commit 4e1fddc98d25 ("tcp_cubic: fix spurious Hystart ACK train detections for not-cwnd-limited flows") moved the caller of the `bictcp_hystart_reset` function inside the `hystart_update` function. This modification added an additional condition for triggering the caller, requiring that (tcp_snd_cwnd(tp) >= hystart_low_window) must also be satisfied before invoking `bictcp_hystart_reset`. This fix ensures that `bictcp_hystart_reset` is correctly called at the start of a new round, regardless of the congestion window size. This is achieved by moving the condition (tcp_snd_cwnd(tp) >= hystart_low_window) from before calling `bictcp_hystart_reset` to after it. I tested with a client and a server connected through two Linux software routers. In this setup, the minimum RTT was 150 ms, the bottleneck bandwidth was 50 Mbps, and the bottleneck buffer size was 1 BDP, calculated as (50M / 1514 / 8) * 0.150 = 619 packets. I conducted the test twice, transferring data from the server to the client for 1.5 seconds. Before the patch was applied, HYSTART-DELAY stopped the exponential growth of cwnd when cwnd = 516, and the bottleneck link was not yet saturated (516 < 619). After the patch was applied, HYSTART-ACK-TRAIN stopped the exponential growth of cwnd when cwnd = 632, and the bottleneck link was saturated (632 > 619). In this test, applying the patch resulted in 300 KB more data delivered. Fixes: 4e1fddc98d25 ("tcp_cubic: fix spurious Hystart ACK train detections for not-cwnd-limited flows") Signed-off-by: Mahdi Arghavani <ma.arghavani@yahoo.com> Reviewed-by: Jason Xing <kerneljasonxing@gmail.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Eric Dumazet <edumazet@google.com> Cc: Haibo Zhang <haibo.zhang@otago.ac.nz> Cc: David Eyers <david.eyers@otago.ac.nz> Cc: Abbas Arghavani <abbas.arghavani@mdu.se> Reviewed-by: Neal Cardwell <ncardwell@google.com> Tested-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-01-20net: macsec: Add endianness annotations in salt structAles Nezbeda
This change resolves warning produced by sparse tool as currently there is a mismatch between normal generic type in salt and endian annotated type in macsec driver code. Endian annotated types should be used here. Sparse output: warning: restricted ssci_t degrades to integer warning: incorrect type in assignment (different base types) expected restricted ssci_t [usertype] ssci got unsigned int warning: restricted __be64 degrades to integer warning: incorrect type in assignment (different base types) expected restricted __be64 [usertype] pn got unsigned long long Signed-off-by: Ales Nezbeda <anezbeda@redhat.com> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-01-20tipc: re-order conditions in tipc_crypto_key_rcv()Dan Carpenter
On a 32bit system the "keylen + sizeof(struct tipc_aead_key)" math could have an integer wrapping issue. It doesn't matter because the "keylen" is checked on the next line, but just to make life easier for static analysis tools, let's re-order these conditions and avoid the integer overflow. Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-01-20net: phylink: always do a major config when attaching a SFP PHYRussell King (Oracle)
Background: https://lore.kernel.org/r/20250107123615.161095-1-ericwouds@gmail.com Since adding negotiation of in-band capabilities, it is no longer sufficient to just look at the MLO_AN_xxx mode and PHY interface to decide whether to do a major configuration, since the result now depends on the capabilities of the attaching PHY. Always trigger a major configuration in this case. Testing log: https://lore.kernel.org/r/f20c9744-3953-40e7-a9c9-5534b25d2e2a@gmail.com Reported-by: Eric Woudstra <ericwouds@gmail.com> Tested-by: Eric Woudstra <ericwouds@gmail.com> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-01-20platform/x86: acer-wmi: Fix initialization of last_non_turbo_profileArmin Wolf
On machines that do not support the balanced profile the value of last_non_turbo_profile is invalid after initialization which might cause the driver to switch to an unsupported platform profile later. Fix this by only setting last_non_turbo_profile to supported platform profile values. Fixes: 191e21f1a4c3 ("platform/x86: acer-wmi: use an ACPI bitmap to set the platform profile choices") Signed-off-by: Armin Wolf <W_Armin@gmx.de> Tested-by: Hridesh MG <hridesh699@gmail.com> Reviewed-by: Hridesh MG <hridesh699@gmail.com> Link: https://lore.kernel.org/r/20250119201723.11102-3-W_Armin@gmx.de Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-01-20platform/x86: acer-wmi: Ignore AC eventsArmin Wolf
On the Acer Swift SFG14-41, the events 8 - 1 and 8 - 0 are printed on AC connect/disconnect. Ignore those events to avoid spamming the kernel log with error messages. Reported-by: Farhan Anwar <farhan.anwar8@gmail.com> Closes: https://lore.kernel.org/platform-driver-x86/2ffb529d-e7c8-4026-a3b8-120c8e7afec8@gmail.com Tested-by: Rayan Margham <rayanmargham4@gmail.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Armin Wolf <W_Armin@gmx.de> Link: https://lore.kernel.org/r/20250119201723.11102-2-W_Armin@gmx.de Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-01-20Merge branch 'kvm-mirror-page-tables' into HEADPaolo Bonzini
As part of enabling TDX virtual machines, support support separation of private/shared EPT into separate roots. Confidential computing solutions almost invariably have concepts of private and shared memory, but they may different a lot in the details. In SEV, for example, the bit is handled more like a permission bit as far as the page tables are concerned: the private/shared bit is not included in the physical address. For TDX, instead, the bit is more like a physical address bit, with the host mapping private memory in one half of the address space and shared in another. Furthermore, the two halves are mapped by different EPT roots and only the shared half is managed by KVM; the private half (also called Secure EPT in Intel documentation) gets managed by the privileged TDX Module via SEAMCALLs. As a result, the operations that actually change the private half of the EPT are limited and relatively slow compared to reading a PTE. For this reason the design for KVM is to keep a mirror of the private EPT in host memory. This allows KVM to quickly walk the EPT and only perform the slower private EPT operations when it needs to actually modify mid-level private PTEs. There are thus three sets of EPT page tables: external, mirror and direct. In the case of TDX (the only user of this framework) the first two cover private memory, whereas the third manages shared memory: external EPT - Hidden within the TDX module, modified via TDX module calls. mirror EPT - Bookkeeping tree used as an optimization by KVM, not used by the processor. direct EPT - Normal EPT that maps unencrypted shared memory. Managed like the EPT of a normal VM. Modifying external EPT ---------------------- Modifications to the mirrored page tables need to also perform the same operations to the private page tables, which will be handled via kvm_x86_ops. Although this prep series does not interact with the TDX module at all to actually configure the private EPT, it does lay the ground work for doing this. In some ways updating the private EPT is as simple as plumbing PTE modifications through to also call into the TDX module; however, the locking is more complicated because inserting a single PTE cannot anymore be done atomically with a single CMPXCHG. For this reason, the existing FROZEN_SPTE mechanism is used whenever a call to the TDX module updates the private EPT. FROZEN_SPTE acts basically as a spinlock on a PTE. Besides protecting operation of KVM, it limits the set of cases in which the TDX module will encounter contention on its own PTE locks. Zapping external EPT -------------------- While the framework tries to be relatively generic, and to be understandable without knowing TDX much in detail, some requirements of TDX sometimes leak; for example the private page tables also cannot be zapped while the range has anything mapped, so the mirrored/private page tables need to be protected from KVM operations that zap any non-leaf PTEs, for example kvm_mmu_reset_context() or kvm_mmu_zap_all_fast(). For normal VMs, guest memory is zapped for several reasons: user memory getting paged out by the guest, memslots getting deleted, passthrough of devices with non-coherent DMA. Confidential computing adds to these the conversion of memory between shared and privates. These operations must not zap any private memory that is in use by the guest. This is possible because the only zapping that is out of the control of KVM/userspace is paging out userspace memory, which cannot apply to guestmemfd operations. Thus a TDX VM will only zap private memory from memslot deletion and from conversion between private and shared memory which is triggered by the guest. To avoid zapping too much memory, enums are introduced so that operations can choose to target only private or shared memory, and thus only direct or mirror EPT. For example: Memslot deletion - Private and shared MMU notifier based zapping - Shared only Conversion to shared - Private only Conversion to private - Shared only Other cases of zapping will not be supported for KVM, for example APICv update or non-coherent DMA status update; for the latter, TDX will simply require that the CPU supports self-snoop and honor guest PAT unconditionally for shared memory.
2025-01-20samples/vfs: fix build warningsChristian Brauner
Fix build warnings reported from linux-next. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Link: https://lore.kernel.org/r/20250120192504.4a1965a0@canb.auug.org.au Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-01-20platform/mellanox: mlxreg-io: use sysfs_emit() instead of sprintf()Ai Chao
Follow the advice in Documentation/filesystems/sysfs.rst: show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. Signed-off-by: Ai Chao <aichao@kylinos.cn> Acked-by: Vadim Pasternak <vadimp@nvidia.com> Link: https://lore.kernel.org/r/20250116081129.2902274-1-aichao@kylinos.cn Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-01-20platform/mellanox: mlxreg-hotplug: use sysfs_emit() instead of sprintf()Ai Chao
Follow the advice in Documentation/filesystems/sysfs.rst: show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. Signed-off-by: Ai Chao <aichao@kylinos.cn> Acked-by: Vadim Pasternak <vadimp@nvidia.com> Link: https://lore.kernel.org/r/20250116081000.2900435-1-aichao@kylinos.cn Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-01-20platform/mellanox: mlxbf-bootctl: use sysfs_emit() instead of sprintf()Ai Chao
Follow the advice in Documentation/filesystems/sysfs.rst: show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. Signed-off-by: Ai Chao <aichao@kylinos.cn> Acked-by: Vadim Pasternak <vadimp@nvidia.com> Link: https://lore.kernel.org/r/20250116080836.2890442-1-aichao@kylinos.cn Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-01-20platform/x86: hp-wmi: Add fan and thermal profile support for Victus 16-s1000Julien ROBIN
The following patch adds support for HP Victus 16-s1000 laptop series, by adding and fixing the following functionalities, which can be accessed through hwmon and platform_profile sysfs: - Functional measured fan speed reading - Ability to enable and disable maximum fan speed - Platform profiles full setting ability for CPU and GPU It sets appropriates CPU and GPU power settings both on AC and battery power sources, for low-power, balanced and performance modes. It has been thoroughly tested on a 16-s1034nf laptop based on a 8C9C DMI board name, and behavior of the driver on previous boards is left untouched thanks to the separated lists of DMI board names. Signed-off-by: Julien ROBIN <julien.robin28@free.fr> Link: https://lore.kernel.org/r/1c00f906-8500-41d5-be80-f9092b6a49f1@free.fr Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-01-20Merge branch 'thermal-intel'Rafael J. Wysocki
Merge updates of Intel thermal drivers for 6.14: - Add support for Panther Lake processors in multiple places (Zhang Rui, Srinivas Pandruvada). - Remove explicit user_space governor selection from Intel thermal drivers (Srinivas Pandruvada). * thermal-intel: thermal: intel: Fix compile issue when CONFIG_NET is not defined thermal: intel: int340x: Panther Lake power floor and workload hint support thermal: intel: int340x: Panther Lake DLVR support thermal: intel: Remove explicit user_space governor selection ACPI: DPTF: Support Panther Lake thermal: intel: int340x: processor: Enable MMIO RAPL for Panther Lake powercap: intel_rapl: Add support for Panther Lake platform
2025-01-20Merge branch 'kvm-userspace-hypercall' into HEADPaolo Bonzini
Make the completion of hypercalls go through the complete_hypercall function pointer argument, no matter if the hypercall exits to userspace or not. Previously, the code assumed that KVM_HC_MAP_GPA_RANGE specifically went to userspace, and all the others did not; the new code need not special case KVM_HC_MAP_GPA_RANGE and in fact does not care at all whether there was an exit to userspace or not.
2025-01-20Merge tag 'kvm-riscv-6.14-1' of https://github.com/kvm-riscv/linux into HEADPaolo Bonzini
KVM/riscv changes for 6.14 - Svvptc, Zabha, and Ziccrse extension support for Guest/VM - Virtualize SBI system suspend extension for Guest/VM - Trap related exit statstics as SBI PMU firmware counters for Guest/VM
2025-01-20Merge tag 'cpufreq-arm-updates-6.14' of ↵Rafael J. Wysocki
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/vireshk/pm Merge ARM cpufreq updates for 6.14 from Viresh Kumar: "- Extended support for more SoCs in apple cpufreq driver (Hector Martin and Nick Chan). - Add new cpufreq driver for Airoha SoCs (Christian Marangi). - Fix using cpufreq-dt as module (Andreas Kemnade). - Minor fixes for Sparc, scmi, and Qcom drivers (Ethan Carter Edwards, Sibi Sankar and Manivannan Sadhasivam)." * tag 'cpufreq-arm-updates-6.14' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: cpufreq: airoha: Add EN7581 CPUFreq SMCCC driver cpufreq: sparc: change kzalloc to kcalloc cpufreq: qcom: Implement clk_ops::determine_rate() for qcom_cpufreq* clocks cpufreq: qcom: Fix qcom_cpufreq_hw_recalc_rate() to query LUT if LMh IRQ is not available cpufreq: apple-soc: Add Apple A7-A8X SoC cpufreq support cpufreq: apple-soc: Set fallback transition latency to APPLE_DVFS_TRANSITION_TIMEOUT cpufreq: apple-soc: Increase cluster switch timeout to 400us cpufreq: apple-soc: Use 32-bit read for status register cpufreq: apple-soc: Allow per-SoC configuration of APPLE_DVFS_CMD_PS1 cpufreq: apple-soc: Drop setting the PS2 field on M2+ dt-bindings: cpufreq: apple,cluster-cpufreq: Add A7-A11, T2 compatibles dt-bindings: cpufreq: Document support for Airoha EN7581 CPUFreq cpufreq: fix using cpufreq-dt as module cpufreq: scmi: Register for limit change notifications
2025-01-20Merge tag 'opp-updates-6.14' of ↵Rafael J. Wysocki
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/vireshk/pm Merge OPP (Operating Performance Points) updates for 6.14 from Viresh Kumar: "- Minor cleanups / fixes (Dan Carpenter, Neil Armstrong, and Joe Hattori). - Implement dev_pm_opp_get_bw (Neil Armstrong). - Expose reference counting helpers (Viresh Kumar)." * tag 'opp-updates-6.14' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: PM / OPP: Add reference counting helpers for Rust implementation OPP: OF: Fix an OF node leak in _opp_add_static_v2() OPP: fix dev_pm_opp_find_bw_*() when bandwidth table not initialized OPP: add index check to assert to avoid buffer overflow in _read_freq() opp: core: Fix off by one in dev_pm_opp_get_bw() opp: core: implement dev_pm_opp_get_bw
2025-01-20samples/vfs: use shared headerChristian Brauner
Share some infrastructure between sample programs and fix a build failure that was reported. Reported-by: Sasha Levin <sashal@kernel.org> Link: https://lore.kernel.org/r/Z42UkSXx0MS9qZ9w@lappy Link: https://qa-reports.linaro.org/lkft/sashal-linus-next/build/v6.13-rc7-511-g109a8e0fa9d6/testrun/26809210/suite/build/test/gcc-8-allyesconfig/log Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-01-20Merge tag 'kvm-x86-misc-6.14' of https://github.com/kvm-x86/linux into HEADPaolo Bonzini
KVM x86 misc changes for 6.14: - Overhaul KVM's CPUID feature infrastructure to track all vCPU capabilities instead of just those where KVM needs to manage state and/or explicitly enable the feature in hardware. Along the way, refactor the code to make it easier to add features, and to make it more self-documenting how KVM is handling each feature. - Rework KVM's handling of VM-Exits during event vectoring; this plugs holes where KVM unintentionally puts the vCPU into infinite loops in some scenarios (e.g. if emulation is triggered by the exit), and brings parity between VMX and SVM. - Add pending request and interrupt injection information to the kvm_exit and kvm_entry tracepoints respectively. - Fix a relatively benign flaw where KVM would end up redoing RDPKRU when loading guest/host PKRU, due to a refactoring of the kernel helpers that didn't account for KVM's pre-checking of the need to do WRPKRU.
2025-01-20Merge tag 'kvm-x86-vmx-6.14' of https://github.com/kvm-x86/linux into HEADPaolo Bonzini
KVM VMX changes for 6.14: - Fix a bug where KVM updates hardware's APICv cache of the highest ISR bit while L2 is active, while ultimately results in a hardware-accelerated L1 EOI effectively being lost. - Honor event priority when emulating Posted Interrupt delivery during nested VM-Enter by queueing KVM_REQ_EVENT instead of immediately handling the interrupt. - Drop kvm_x86_ops.hwapic_irr_update() as KVM updates hardware's APICv cache prior to every VM-Enter. - Rework KVM's processing of the Page-Modification Logging buffer to reap entries in the same order they were created, i.e. to mark gfns dirty in the same order that hardware marked the page/PTE dirty. - Misc cleanups.
2025-01-20Merge tag 'kvm-x86-svm-6.14' of https://github.com/kvm-x86/linux into HEADPaolo Bonzini
KVM SVM changes for 6.14: - Macrofy the SEV=n version of the sev_xxx_guest() helpers so that the code is optimized away when building with less than brilliant compilers. - Remove a now-redundant TLB flush when guest CR4.PGE changes. - Use str_enabled_disabled() to replace open coded strings.
2025-01-20Merge tag 'kvm-x86-mmu-6.14' of https://github.com/kvm-x86/linux into HEADPaolo Bonzini
KVM x86 MMU changes for 6.14: - Add a comment to kvm_mmu_do_page_fault() to explain why KVM performs a direct call to kvm_tdp_page_fault() when RETPOLINE is enabled.
2025-01-20Merge tag 'kvm-x86-vcpu_array-6.14' of https://github.com/kvm-x86/linux into ↵Paolo Bonzini
HEAD KVM vcpu_array fixes and cleanups for 6.14: - Explicitly verify the target vCPU is online in kvm_get_vcpu() to fix a bug where KVM would return a pointer to a vCPU prior to it being fully online, and give kvm_for_each_vcpu() similar treatment to fix a similar flaw. - Wait for a vCPU to come online prior to executing a vCPU ioctl to fix a bug where userspace could coerce KVM into handling the ioctl on a vCPU that isn't yet onlined. - Gracefully handle xa_insert() failures even though such failuires should be impossible in practice.
2025-01-20Merge tag 'kvm-memslots-6.14' of https://github.com/kvm-x86/linux into HEADPaolo Bonzini
KVM kvm_set_memory_region() cleanups and hardening for 6.14: - Add proper lockdep assertions when setting memory regions. - Add a dedicated API for setting KVM-internal memory regions. - Explicitly disallow all flags for KVM-internal memory regions.
2025-01-20net: appletalk: Drop aarp_send_probe_phase1()谢致邦 (XIE Zhibang)
aarp_send_probe_phase1() used to work by calling ndo_do_ioctl of appletalk drivers ltpc or cops, but these two drivers have been removed since the following commits: commit 03dcb90dbf62 ("net: appletalk: remove Apple/Farallon LocalTalk PC support") commit 00f3696f7555 ("net: appletalk: remove cops support") Thus aarp_send_probe_phase1() no longer works, so drop it. (found by code inspection) Signed-off-by: 谢致邦 (XIE Zhibang) <Yeking@Red54.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-01-20net: ethernet: ti: am65-cpsw: fix freeing IRQ in am65_cpsw_nuss_remove_tx_chns()Roger Quadros
When getting the IRQ we use k3_udma_glue_tx_get_irq() which returns negative error value on error. So not NULL check is not sufficient to deteremine if IRQ is valid. Check that IRQ is greater then zero to ensure it is valid. There is no issue at probe time but at runtime user can invoke .set_channels which results in the following call chain. am65_cpsw_set_channels() am65_cpsw_nuss_update_tx_rx_chns() am65_cpsw_nuss_remove_tx_chns() am65_cpsw_nuss_init_tx_chns() At this point if am65_cpsw_nuss_init_tx_chns() fails due to k3_udma_glue_tx_get_irq() then tx_chn->irq will be set to a negative value. Then, at subsequent .set_channels with higher channel count we will attempt to free an invalid IRQ in am65_cpsw_nuss_remove_tx_chns() leading to a kernel warning. The issue is present in the original commit that introduced this driver, although there, am65_cpsw_nuss_update_tx_rx_chns() existed as am65_cpsw_nuss_update_tx_chns(). Fixes: 93a76530316a ("net: ethernet: ti: introduce am65x/j721e gigabit eth subsystem driver") Signed-off-by: Roger Quadros <rogerq@kernel.org> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Siddharth Vadapalli <s-vadapalli@ti.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-01-20dsa: Use str_enable_disable-like helpersKrzysztof Kozlowski
Replace ternary (condition ? "enable" : "disable") syntax with helpers from string_choices.h because: 1. Simple function call with one argument is easier to read. Ternary operator has three arguments and with wrapping might lead to quite long code. 2. Is slightly shorter thus also easier to read. 3. It brings uniformity in the text - same string. 4. Allows deduping by the linker, which results in a smaller binary file. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-01-20net: sched: refine software bypass handling in tc_runXin Long
This patch addresses issues with filter counting in block (tcf_block), particularly for software bypass scenarios, by introducing a more accurate mechanism using useswcnt. Previously, filtercnt and skipswcnt were introduced by: Commit 2081fd3445fe ("net: sched: cls_api: add filter counter") and Commit f631ef39d819 ("net: sched: cls_api: add skip_sw counter") filtercnt tracked all tp (tcf_proto) objects added to a block, and skipswcnt counted tp objects with the skipsw attribute set. The problem is: a single tp can contain multiple filters, some with skipsw and others without. The current implementation fails in the case: When the first filter in a tp has skipsw, both skipswcnt and filtercnt are incremented, then adding a second filter without skipsw to the same tp does not modify these counters because tp->counted is already set. This results in bypass software behavior based solely on skipswcnt equaling filtercnt, even when the block includes filters without skipsw. Consequently, filters without skipsw are inadvertently bypassed. To address this, the patch introduces useswcnt in block to explicitly count tp objects containing at least one filter without skipsw. Key changes include: Whenever a filter without skipsw is added, its tp is marked with usesw and counted in useswcnt. tc_run() now uses useswcnt to determine software bypass, eliminating reliance on filtercnt and skipswcnt. This refined approach prevents software bypass for blocks containing mixed filters, ensuring correct behavior in tc_run(). Additionally, as atomic operations on useswcnt ensure thread safety and tp->lock guards access to tp->usesw and tp->counted, the broader lock down_write(&block->cb_lock) is no longer required in tc_new_tfilter(), and this resolves a performance regression caused by the filter counting mechanism during parallel filter insertions. The improvement can be demonstrated using the following script: # cat insert_tc_rules.sh tc qdisc add dev ens1f0np0 ingress for i in $(seq 16); do taskset -c $i tc -b rules_$i.txt & done wait Each of rules_$i.txt files above includes 100000 tc filter rules to a mlx5 driver NIC ens1f0np0. Without this patch: # time sh insert_tc_rules.sh real 0m50.780s user 0m23.556s sys 4m13.032s With this patch: # time sh insert_tc_rules.sh real 0m17.718s user 0m7.807s sys 3m45.050s Fixes: 047f340b36fc ("net: sched: make skip_sw actually skip software") Reported-by: Shuang Li <shuali@redhat.com> Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Reviewed-by: Asbjørn Sloth Tønnesen <ast@fiberby.net> Tested-by: Asbjørn Sloth Tønnesen <ast@fiberby.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-01-20Merge branches 'for-6.14/wacom' and 'for-6.14/wacom-pci' into for-linusJiri Kosina
- improvement of behavior for non-standard LED brightness values (Jason Gerecke) - PCI Wacom device supports (depends on Intel THC support) (Even Xu)
2025-01-20Merge branch 'for-6.14/uclogic' into for-linusJiri Kosina
- minor code cleanup (Colin Ian King)
2025-01-20Merge branch 'for-6.14/steelseries' into for-linusJiri Kosina
- SteelSeries Arctis 9 support (Christian Mayer)
2025-01-20Merge branch 'for-6.14/nintendo' into for-linusJiri Kosina
- support for MD/GEN 6B controller (Ryan McClelland)
2025-01-20Merge branch 'for-6.14/lenovo' into for-linusJiri Kosina
- improved support for Thinkpad-X12-TAB-1/2 (Vishnu Sankar)
2025-01-20Merge branch 'for-6.14/intel-thc' into for-linusJiri Kosina
- newly added support for Intel Touch Host Controller (Even Xu, Xinpeng Sun)
2025-01-20Merge branch 'for-6.14/intel-ish' into for-linusJiri Kosina
- dead code removal in intel-ish-hid driver (Dr. David Alan Gilbert)
2025-01-20Merge branch 'for-6.14/core' into for-linusJiri Kosina
- hid-core fix for long-standing cornercase of Resolution Multiplier not being present in any of the Logical Collections in the device HID report descriptor (Alan Stern)
2025-01-20Merge branch 'for-6.14/constify-bin-attribute' into for-linusJiri Kosina
- constification of 'struct bin_attribute' in various HID driver (Thomas Weißschuh)
2025-01-20ALSA: ctxfi: Simplify dao_clear_{left,right}_input() functionsEthan Carter Edwards
There was a lote of code duplication in the dao_clear_left_input() and dao_clear_right_input() functions. A new function, dao_clear_input(), was created and now the left and right functions call it instead of repeating themselves. Link: https://lore.kernel.org/lkml/NyKCr2VHK_xCQDwNxFKKx2LVd2d_AC2f2j4eAvnD9uRPtb50i2AruCLOp6mHxsGiyYJ0Tgd3Z50Oy1JTi5gPhjd2WQM2skrv7asp3fLl8HU=@ethancedwards.com/ Signed-off-by: Ethan Carter Edwards <ethan@ethancedwards.com> Link: https://patch.msgid.link/x3glr6fetk7d7hlqimkv6g5krz2oibe7yusms3d7zk4ofrhlrx@75avihssncc5 Signed-off-by: Takashi Iwai <tiwai@suse.de>
2025-01-20Merge branch 'for-linus' into for-nextTakashi Iwai
Pull pending ASoC and HD-audio fixes for 6.14-rc1 Signed-off-by: Takashi Iwai <tiwai@suse.de>
2025-01-20mtd: spinand: skyhigh: Align with recent read from cache variant changesMiquel Raynal
The SPINAND_PAGE_READ_FROM_CACHE_OP macro has just been changed to stop encoding the "fast" parameter (the macro has been duplicated and renamed). The Skyhigh driver is new and is still using the old style macro. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202501161302.bQqBGjJ5-lkp@intel.com/ Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Closes: https://lore.kernel.org/linux-kernel/20250116132010.4948547d@canb.auug.org.au/ Fixes: 042087247835d ("mtd: spinand: Create distinct fast and slow read from cache variants") Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Tested-by: Stephen Rothwell <sfr@canb.auug.org.au> # build tested
2025-01-20ALSA: hda: tas2781-spi: select CRC32 instead of CRC32_SARWATETakashi Iwai
Just like the I2C driver (as in commit 86c96e7289c5 "ALSA: hda/tas2781: select CRC32 instead of CRC32_SARWATE"), the new tas2781 SPI driver has to select CONFIG_CRC32 instead of CONFIG_CRC32_SARWATE for fixing the build failures. Fixes: bb5f86ea50ff ("ALSA: hda/tas2781: Add tas2781 hda SPI driver") Suggested-by: Eric Biggers <ebiggers@kernel.org> Link: https://lore.kernel.org/20250120181744.6433557e@canb.auug.org.au Link: https://patch.msgid.link/20250120074655.922-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2025-01-20ALSA: usb: fcp: Fix hwdep read ops typesStephen Rothwell
The FCP driver defined hwdep read function with ssize_t, but it should be long due to historical reason. This caused build errors on 32bit archs. Fixes: 46757a3e7d50 ("ALSA: FCP: Add Focusrite Control Protocol driver") Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Link: https://patch.msgid.link/20250120145617.07945574@canb.auug.org.au Signed-off-by: Takashi Iwai <tiwai@suse.de>
2025-01-19Merge branch 'vsnprintf'Linus Torvalds
This merges the vsnprintf internal cleanups I did, which were triggered by a combination of performance issues (see for example commit f9ed1f7c2e26: "genirq/proc: Use seq_put_decimal_ull_width() for decimal values") and discussion about tracing abusing the vsnprintf code in odd ways. The intent was to improve code generation, but also to possibly eventually expose the cleaned-up printf format decoding state machine. It certainly didn't get to the point where we'd want to expose the format decoding to external users, but it's an improvement over what we used to have. Several of the complex case statements have been simplified, or removed entirely to be replaced by simple table lookups. * branch 'vsnprintf': vsnprintf: fix the number base for non-numeric formats vsnprintf: fix up kerneldoc for argument name changes vsprintf: don't make the 'binary' version pack small integer arguments vsnprintf: collapse the number format state into one single state vsnprintf: mark the indirect width and precision cases unlikely vsnprintf: inline skip_atoi() again vsprintf: deal with format specifiers with a lookup table vsprintf: deal with format flags with a simple lookup table vsprintf: associate the format state with the format pointer vsprintf: fix calling convention for format_decode() vsprintf: avoid nested switch statement on same variable vsprintf: simplify number handling
2025-01-20PM / OPP: Add reference counting helpers for Rust implementationViresh Kumar
To ensure that resources such as OPP tables or OPP nodes are not freed while in use by the Rust implementation, it is necessary to increment their reference count from Rust code. This commit introduces a new helper function, dev_pm_opp_get_opp_table_ref(), to increment the reference count of an OPP table and declares the existing helper dev_pm_opp_get() in pm_opp.h. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2025-01-19cifs: Do not attempt to call CIFSGetSrvInodeNumber() without ↵Pali Rohár
CAP_INFOLEVEL_PASSTHRU CIFSGetSrvInodeNumber() uses SMB_QUERY_FILE_INTERNAL_INFO (0x3ee) level which is SMB PASSTHROUGH level (>= 0x03e8). SMB PASSTHROUGH levels are supported only when server announce CAP_INFOLEVEL_PASSTHRU. So add guard in cifs_query_file_info() function which is the only user of CIFSGetSrvInodeNumber() function and returns -EOPNOTSUPP when server does not announce CAP_INFOLEVEL_PASSTHRU. Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
2025-01-19cifs: Do not attempt to call CIFSSMBRenameOpenFile() without ↵Pali Rohár
CAP_INFOLEVEL_PASSTHRU CIFSSMBRenameOpenFile() uses SMB_SET_FILE_RENAME_INFORMATION (0x3f2) level which is SMB PASSTHROUGH level (>= 0x03e8). SMB PASSTHROUGH levels are supported only when server announce CAP_INFOLEVEL_PASSTHRU. All usage of CIFSSMBRenameOpenFile() execept the one is already guarded by checks which prevents calling it against servers without support for CAP_INFOLEVEL_PASSTHRU. The remaning usage without guard is in cifs_do_rename() function, so add missing guard here. Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
2025-01-19cifs: Remove declaration of dead CIFSSMBQuerySymLink functionPali Rohár
Function CIFSSMBQuerySymLink() was renamed to cifs_query_reparse_point() in commit ed3e0a149b58 ("smb: client: implement ->query_reparse_point() for SMB1"). Remove its dead declaration from header file too. Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
2025-01-19cifs: Fix printing Status code into dmesgPali Rohár
NT Status code is 32-bit number, so for comparing two NT Status codes is needed to check all 32 bits, and not just low 24 bits. Before this change kernel printed message: "Status code returned 0x8000002d NT_STATUS_NOT_COMMITTED" It was incorrect as because NT_STATUS_NOT_COMMITTED is defined as 0xC000002d and 0x8000002d has defined name NT_STATUS_STOPPED_ON_SYMLINK. With this change kernel prints message: "Status code returned 0x8000002d NT_STATUS_STOPPED_ON_SYMLINK" Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>