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2022-04-01bpf, arm64: Adjust the offset of str/ldr(immediate) to positive numberXu Kuohai1-27/+138
The BPF STX/LDX instruction uses offset relative to the FP to address stack space. Since the BPF_FP locates at the top of the frame, the offset is usually a negative number. However, arm64 str/ldr immediate instruction requires that offset be a positive number. Therefore, this patch tries to convert the offsets. The method is to find the negative offset furthest from the FP firstly. Then add it to the FP, calculate a bottom position, called FPB, and then adjust the offsets in other STR/LDX instructions relative to FPB. FPB is saved using the callee-saved register x27 of arm64 which is not used yet. Before adjusting the offset, the patch checks every instruction to ensure that the FP does not change in run-time. If the FP may change, no offset is adjusted. For example, for the following bpftrace command: bpftrace -e 'kprobe:do_sys_open { printf("opening: %s\n", str(arg1)); }' Without this patch, jited code(fragment): 0: bti c 4: stp x29, x30, [sp, #-16]! 8: mov x29, sp c: stp x19, x20, [sp, #-16]! 10: stp x21, x22, [sp, #-16]! 14: stp x25, x26, [sp, #-16]! 18: mov x25, sp 1c: mov x26, #0x0 // #0 20: bti j 24: sub sp, sp, #0x90 28: add x19, x0, #0x0 2c: mov x0, #0x0 // #0 30: mov x10, #0xffffffffffffff78 // #-136 34: str x0, [x25, x10] 38: mov x10, #0xffffffffffffff80 // #-128 3c: str x0, [x25, x10] 40: mov x10, #0xffffffffffffff88 // #-120 44: str x0, [x25, x10] 48: mov x10, #0xffffffffffffff90 // #-112 4c: str x0, [x25, x10] 50: mov x10, #0xffffffffffffff98 // #-104 54: str x0, [x25, x10] 58: mov x10, #0xffffffffffffffa0 // #-96 5c: str x0, [x25, x10] 60: mov x10, #0xffffffffffffffa8 // #-88 64: str x0, [x25, x10] 68: mov x10, #0xffffffffffffffb0 // #-80 6c: str x0, [x25, x10] 70: mov x10, #0xffffffffffffffb8 // #-72 74: str x0, [x25, x10] 78: mov x10, #0xffffffffffffffc0 // #-64 7c: str x0, [x25, x10] 80: mov x10, #0xffffffffffffffc8 // #-56 84: str x0, [x25, x10] 88: mov x10, #0xffffffffffffffd0 // #-48 8c: str x0, [x25, x10] 90: mov x10, #0xffffffffffffffd8 // #-40 94: str x0, [x25, x10] 98: mov x10, #0xffffffffffffffe0 // #-32 9c: str x0, [x25, x10] a0: mov x10, #0xffffffffffffffe8 // #-24 a4: str x0, [x25, x10] a8: mov x10, #0xfffffffffffffff0 // #-16 ac: str x0, [x25, x10] b0: mov x10, #0xfffffffffffffff8 // #-8 b4: str x0, [x25, x10] b8: mov x10, #0x8 // #8 bc: ldr x2, [x19, x10] [...] With this patch, jited code(fragment): 0: bti c 4: stp x29, x30, [sp, #-16]! 8: mov x29, sp c: stp x19, x20, [sp, #-16]! 10: stp x21, x22, [sp, #-16]! 14: stp x25, x26, [sp, #-16]! 18: stp x27, x28, [sp, #-16]! 1c: mov x25, sp 20: sub x27, x25, #0x88 24: mov x26, #0x0 // #0 28: bti j 2c: sub sp, sp, #0x90 30: add x19, x0, #0x0 34: mov x0, #0x0 // #0 38: str x0, [x27] 3c: str x0, [x27, #8] 40: str x0, [x27, #16] 44: str x0, [x27, #24] 48: str x0, [x27, #32] 4c: str x0, [x27, #40] 50: str x0, [x27, #48] 54: str x0, [x27, #56] 58: str x0, [x27, #64] 5c: str x0, [x27, #72] 60: str x0, [x27, #80] 64: str x0, [x27, #88] 68: str x0, [x27, #96] 6c: str x0, [x27, #104] 70: str x0, [x27, #112] 74: str x0, [x27, #120] 78: str x0, [x27, #128] 7c: ldr x2, [x19, #8] [...] Signed-off-by: Xu Kuohai <xukuohai@huawei.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20220321152852.2334294-4-xukuohai@huawei.com
2022-04-01bpf, arm64: Optimize BPF store/load using arm64 str/ldr(immediate offset)Xu Kuohai2-15/+127
The current BPF store/load instruction is translated by the JIT into two instructions. The first instruction moves the immediate offset into a temporary register. The second instruction uses this temporary register to do the real store/load. In fact, arm64 supports addressing with immediate offsets. So This patch introduces optimization that uses arm64 str/ldr instruction with immediate offset when the offset fits. Example of generated instuction for r2 = *(u64 *)(r1 + 0): without optimization: mov x10, 0 ldr x1, [x0, x10] with optimization: ldr x1, [x0, 0] If the offset is negative, or is not aligned correctly, or exceeds max value, rollback to the use of temporary register. Signed-off-by: Xu Kuohai <xukuohai@huawei.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20220321152852.2334294-3-xukuohai@huawei.com
2022-04-01arm64, insn: Add ldr/str with immediate offsetXu Kuohai2-14/+62
This patch introduces ldr/str with immediate offset support to simplify the JIT implementation of BPF LDX/STX instructions on arm64. Although arm64 ldr/str immediate is available in pre-index, post-index and unsigned offset forms, the unsigned offset form is sufficient for BPF, so this patch only adds this type. Signed-off-by: Xu Kuohai <xukuohai@huawei.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20220321152852.2334294-2-xukuohai@huawei.com
2022-03-31Merge tag 'net-5.18-rc1' of ↵Linus Torvalds9-134/+169
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull more networking updates from Jakub Kicinski: "Networking fixes and rethook patches. Features: - kprobes: rethook: x86: replace kretprobe trampoline with rethook Current release - regressions: - sfc: avoid null-deref on systems without NUMA awareness in the new queue sizing code Current release - new code bugs: - vxlan: do not feed vxlan_vnifilter_dump_dev with non-vxlan devices - eth: lan966x: fix null-deref on PHY pointer in timestamp ioctl when interface is down Previous releases - always broken: - openvswitch: correct neighbor discovery target mask field in the flow dump - wireguard: ignore v6 endpoints when ipv6 is disabled and fix a leak - rxrpc: fix call timer start racing with call destruction - rxrpc: fix null-deref when security type is rxrpc_no_security - can: fix UAF bugs around echo skbs in multiple drivers Misc: - docs: move netdev-FAQ to the 'process' section of the documentation" * tag 'net-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (57 commits) vxlan: do not feed vxlan_vnifilter_dump_dev with non vxlan devices openvswitch: Add recirc_id to recirc warning rxrpc: fix some null-ptr-deref bugs in server_key.c rxrpc: Fix call timer start racing with call destruction net: hns3: fix software vlan talbe of vlan 0 inconsistent with hardware net: hns3: fix the concurrency between functions reading debugfs docs: netdev: move the netdev-FAQ to the process pages docs: netdev: broaden the new vs old code formatting guidelines docs: netdev: call out the merge window in tag checking docs: netdev: add missing back ticks docs: netdev: make the testing requirement more stringent docs: netdev: add a question about re-posting frequency docs: netdev: rephrase the 'should I update patchwork' question docs: netdev: rephrase the 'Under review' question docs: netdev: shorten the name and mention msgid for patch status docs: netdev: note that RFC postings are allowed any time docs: netdev: turn the net-next closed into a Warning docs: netdev: move the patch marking section up docs: netdev: minor reword docs: netdev: replace references to old archives ...
2022-03-31Merge tag 'v5.18-p1' of ↵Linus Torvalds4-22/+24
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fixes from Herbert Xu: - Missing Kconfig dependency on arm that leads to boot failure - x86 SLS fixes - Reference leak in the stm32 driver * tag 'v5.18-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: x86/sm3 - Fixup SLS crypto: x86/poly1305 - Fixup SLS crypto: x86/chacha20 - Avoid spurious jumps to other functions crypto: stm32 - fix reference leak in stm32_crc_remove crypto: arm/aes-neonbs-cbc - Select generic cbc and aes
2022-03-31Merge tag 'for-5.18/parisc-2' of ↵Linus Torvalds20-190/+241
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull more parisc architecture updates from Helge Deller: - Revert a patch to the invalidate/flush vmap routines which broke kernel patching functions on older PA-RISC machines. - Fix the kernel patching code wrt locking and flushing. Works now on B160L machine as well. - Fix CPU IRQ affinity for LASI, WAX and Dino chips - Add CPU hotplug support - Detect the hppa-suse-linux-gcc compiler when cross-compiling * tag 'for-5.18/parisc-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Fix patch code locking and flushing parisc: Find a new timesync master if current CPU is removed parisc: Move common_stext into .text section when CONFIG_HOTPLUG_CPU=y parisc: Rewrite arch_cpu_idle_dead() for CPU hotplugging parisc: Implement __cpu_die() and __cpu_disable() for CPU hotplugging parisc: Add PDC locking functions for rendezvous code parisc: Move disable_sr_hashing_asm() into .text section parisc: Move CPU startup-related functions into .text section parisc: Move store_cpu_topology() into text section parisc: Switch from GENERIC_CPU_DEVICES to GENERIC_ARCH_TOPOLOGY parisc: Ensure set_firmware_width() is called only once parisc: Add constants for control registers and clean up mfctl() parisc: Detect hppa-suse-linux-gcc compiler for cross-building parisc: Clean up cpu_check_affinity() and drop cpu_set_affinity_irq() parisc: Fix CPU affinity for Lasi, WAX and Dino chips Revert "parisc: Fix invalidate/flush vmap routines"
2022-03-30Merge tag 'clk-for-linus' of ↵Linus Torvalds2-24/+24
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk updates from Stephen Boyd: "There's one large change in the core clk framework here. We change how clk_set_rate_range() works so that the frequency is re-evaulated each time the rate is changed. Previously we wouldn't let clk providers see a rate that was different if it was still within the range, which could be bad for power if the clk could run slower when a range expands. Now the clk provider can decide to do something differently when the constraints change. This broke Nvidia's clk driver so we had to wait for the fix for that to bake a little more in -next. The rate range patch series also introduced a kunit suite for the clk framework that we're going to extend in the next release. It already made it easy to find corner cases in the rate range patches so I'm excited to see it cover more clk code and increase our confidence in core framework patches in the future. I also added a kunit test for the basic clk gate code and that work will continue to cover more basic clk types: muxes, dividers, etc. Beyond the core code we have the usual set of clk driver updates and additions. Qualcomm again dominates the diffstat here with lots more SoCs being supported and i.MX follows afer that with a similar number of SoCs gaining clk drivers. Beyond those large additions there's drivers being modernized to use clk_parent_data so we can move away from global string names for all the clks in an SoC. Finally there's lots of little fixes all over the clk drivers for typos, warnings, and missing clks that aren't critical and get batched up waiting for the next merge window to open. Nothing super big stands out in the driver pile. Full details are below. Core: - Make clk_set_rate_range() re-evaluate the limits each time - Introduce various clk_set_rate_range() tests - Add clk_drop_range() to drop a previously set range New Drivers: - i.MXRT1050 clock driver and bindings - i.MX8DXL clock driver and bindings - i.MX93 clock driver and bindings - NCO blocks on Apple SoCs - Audio clks on StarFive JH7100 RISC-V SoC - Add support for the new Renesas RZ/V2L SoC - Qualcomm SDX65 A7 PLL - Qualcomm SM6350 GPU clks - Qualcomm SM6125, SM6350, QCS2290 display clks - Qualcomm MSM8226 multimedia clks Updates: - Kunit tests for clk-gate implementation - Terminate arrays with sentinels and make that clearer - Cleanup SPDX tags - Fix typos in comments - Mark mux table as const in clk-mux - Make the all_lists array const - Convert Cirrus Logic CS2000P driver to regmap, yamlify DT binding and add support for dynamic mode - Clock configuration on Microchip PolarFire SoCs - Free allocations on probe error in Mediatek clk driver - Modernize Mediatek clk driver by consolidating code - Add watchdog (WDT), I2C, and pin function controller (PFC) clocks on Renesas R-Car S4-8 - Improve the clocks for the Rockchip rk3568 display outputs (parenting, pll-rates) - Use of_device_get_match_data() instead of open-coding on Rockchip rk3568 - Reintroduce the expected fractional-divider behaviour that disappeared with the addition of CLK_FRAC_DIVIDER_POWER_OF_TWO_PS - Remove SYS PLL 1/2 clock gates for i.MX8M* - Remove AUDIO MCLK ROOT from i.MX7D - Add fracn gppll clock type used by i.MX93 - Add new composite clock for i.MX93 - Add missing media mipi phy ref clock for i.MX8MP - Fix off by one in imx_lpcg_parse_clks_from_dt() - Rework for the imx pll14xx - sama7g5: One low priority fix for GCLK of PDMC - Add DMA engine (SYS-DMAC) clocks on Renesas R-Car S4-8 - Add MOST (MediaLB I/F) clocks on Renesas R-Car E3 and D3 - Add CAN-FD clocks on Renesas R-Car V3U - Qualcomm SC8280XP RPMCC - Add some missing clks on Qualcomm MSM8992/MSM8994/MSM8998 SoCs - Rework Qualcomm GCC bindings and convert SDM845 camera bindig to YAML - Convert various Qualcomm drivers to use clk_parent_data - Remove test clocks from various Qualcomm drivers - Crypto engine clks on Qualcomm IPQ806x + more freqs for SDCC/NSS - Qualcomm SM8150 EMAC, PCIe, UFS GDSCs - Better pixel clk frequency support on Qualcomm RCG2 clks" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (227 commits) clk: zynq: Update the parameters to zynq_clk_register_periph_clk clk: zynq: trivial warning fix clk: Drop the rate range on clk_put() clk: test: Test clk_set_rate_range on orphan mux clk: Initialize orphan req_rate dt-bindings: clock: drop useless consumer example dt-bindings: clock: renesas: Make example 'clocks' parsable clk: qcom: gcc-msm8994: Fix gpll4 width dt-bindings: clock: fix dt_binding_check error for qcom,gcc-other.yaml clk: rs9: Add Renesas 9-series PCIe clock generator driver clk: fixed-factor: Introduce devm_clk_hw_register_fixed_factor_index() clk: visconti: prevent array overflow in visconti_clk_register_gates() dt-bindings: clk: rs9: Add Renesas 9-series I2C PCIe clock generator clk: sifive: Move all stuff into SoCs header files from C files clk: sifive: Add SoCs prefix in each SoCs-dependent data riscv: dts: Change the macro name of prci in each device node dt-bindings: change the macro name of prci in header files and example clk: sifive: duplicate the macro definitions for the time being clk: qcom: sm6125-gcc: fix typos in comments clk: ti: clkctrl: fix typos in comments ...
2022-03-30Merge tag 'libnvdimm-for-5.18' of ↵Linus Torvalds2-0/+234
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm updates from Dan Williams: "The update for this cycle includes the deprecation of block-aperture mode and a new perf events interface for the papr_scm nvdimm driver. The perf events approach was acked by PeterZ. - Add perf support for nvdimm events, initially only for 'papr_scm' devices. - Deprecate the 'block aperture' support in libnvdimm, it only ever existed in the specification, not in shipping product" * tag 'libnvdimm-for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: nvdimm/blk: Fix title level MAINTAINERS: remove section LIBNVDIMM BLK: MMIO-APERTURE DRIVER powerpc/papr_scm: Fix build failure when drivers/nvdimm: Fix build failure when CONFIG_PERF_EVENTS is not set nvdimm/region: Delete nd_blk_region infrastructure ACPI: NFIT: Remove block aperture support nvdimm/namespace: Delete nd_namespace_blk nvdimm/namespace: Delete blk namespace consideration in shared paths nvdimm/blk: Delete the block-aperture window driver nvdimm/region: Fix default alignment for small regions docs: ABI: sysfs-bus-nvdimm: Document sysfs event format entries for nvdimm pmu powerpc/papr_scm: Add perf interface support drivers/nvdimm: Add perf interface to expose nvdimm performance stats drivers/nvdimm: Add nvdimm pmu structure
2022-03-30crypto: x86/sm3 - Fixup SLSPeter Zijlstra1-1/+1
This missed the big asm update due to being merged through the crypto tree. Fixes: f94909ceb1ed ("x86: Prepare asm files for straight-line-speculation") Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-03-29parisc: Fix patch code locking and flushingJohn David Anglin1-14/+11
This change fixes the following: 1) The flags variable is not initialized. Always use raw_spin_lock_irqsave and raw_spin_unlock_irqrestore to serialize patching. 2) flush_kernel_vmap_range is primarily intended for DMA flushes. Since __patch_text_multiple is often called with interrupts disabled, it is better to directly call flush_kernel_dcache_range_asm and flush_kernel_icache_range_asm. This avoids an extra call. 3) The final call to flush_icache_range is unnecessary. Signed-off-by: John David Anglin <dave.anglin@bell.net> Signed-off-by: Helge Deller <deller@gmx.de>
2022-03-29parisc: Find a new timesync master if current CPU is removedHelge Deller3-1/+10
When CPU hotplugging is enabled, the user may want to remove the current CPU which is providing the timer ticks. If this happens we need to find a new timesync master. Signed-off-by: Helge Deller <deller@gmx.de>
2022-03-29parisc: Move common_stext into .text section when CONFIG_HOTPLUG_CPU=yHelge Deller1-2/+9
Move the common_stext function into the non-init text section if hotplug is enabled. This function is called from the firmware when hotplugged CPUs are brought up. Signed-off-by: Helge Deller <deller@gmx.de>
2022-03-29parisc: Rewrite arch_cpu_idle_dead() for CPU hotpluggingHelge Deller1-3/+24
Let the PDC firmware put the CPU into firmware idle loop with the pdc_cpu_rendezvous() function. Signed-off-by: Helge Deller <deller@gmx.de>
2022-03-29parisc: Implement __cpu_die() and __cpu_disable() for CPU hotpluggingHelge Deller3-22/+90
Add relevant code to __cpu_die() and __cpu_disable() to finally enable the CPU hotplugging features. Reset the irq count values in smp_callin() to zero before bringing up the CPU. It seems that the firmware may need up to 8 seconds to fully stop a CPU in which no other PDC calls are allowed to be made. Use a timeout __cpu_die() to accommodate for this. Use "chcpu -d 1" to bring CPU1 down, and "chcpu -e 1" to bring it up. Signed-off-by: Helge Deller <deller@gmx.de>
2022-03-29parisc: Add PDC locking functions for rendezvous codeHelge Deller3-1/+42
Add pdc_cpu_rendezvous_lock() and pdc_cpu_rendezvous_unlock() to lock PDC while CPU is transitioning into rendezvous state. This is needed, because the transition phase may take up to 8 seconds. Add pdc_pat_get_PDC_entrypoint() to get PDC entry point for current CPU. Signed-off-by: Helge Deller <deller@gmx.de>
2022-03-29parisc: Move disable_sr_hashing_asm() into .text sectionHelge Deller1-1/+1
Signed-off-by: Helge Deller <deller@gmx.de>
2022-03-29parisc: Move CPU startup-related functions into .text sectionHelge Deller4-4/+4
If CONFIG_HOTPLUG_CPU is enabled, those functions will be run again after bootup. So they need to reside in the .text section. Signed-off-by: Helge Deller <deller@gmx.de>
2022-03-29parisc: Move store_cpu_topology() into text sectionHelge Deller1-2/+3
Signed-off-by: Helge Deller <deller@gmx.de>
2022-03-29parisc: Switch from GENERIC_CPU_DEVICES to GENERIC_ARCH_TOPOLOGYHelge Deller5-88/+24
Switch away from the own cpu topology code to common code which is used by ARM64 and RISCV. That will allow us to enable CPU hotplug later on. Signed-off-by: Helge Deller <deller@gmx.de>
2022-03-29parisc: Ensure set_firmware_width() is called only onceHelge Deller1-1/+6
Call set_firmware_width() only once at runtime. This prevents that hotplugged CPUs will get stuck in spinlocks later on. Signed-off-by: Helge Deller <deller@gmx.de>
2022-03-29parisc: Add constants for control registers and clean up mfctl()Helge Deller1-9/+8
Clean up the code for the mfctl() and mtctl() functions and add often used constants. Signed-off-by: Helge Deller <deller@gmx.de>
2022-03-29parisc: Detect hppa-suse-linux-gcc compiler for cross-buildingHelge Deller1-2/+2
Allow the system to find the SUSE hppa compiler and linker to set CROSS32_COMPILE and CROSS_COMPILE. Suggested-by: Jiri Slaby <jirislaby@kernel.org> Signed-off-by: Helge Deller <deller@gmx.de>
2022-03-29parisc: Clean up cpu_check_affinity() and drop cpu_set_affinity_irq()Helge Deller1-21/+2
The cpu_set_affinity_irq() isn't needed. Not the CPU irqs need to change, but the slave irq chips simply need to be reprogrammed to a new CPU irq with the txn_* functions. Signed-off-by: Helge Deller <deller@gmx.de>
2022-03-29Merge tag 'pm-5.18-rc1-2' of ↵Linus Torvalds1-0/+16
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more power management updates from Rafael Wysocki: "These update ARM cpufreq drivers, the OPP (Operating Performance Points) library and the power management documentation. Specifics: - Add per core DVFS support for QCom SoC (Bjorn Andersson), convert to yaml binding (Manivannan Sadhasivam) and various other fixes to the QCom drivers (Luca Weiss). - Add OPP table for imx7s SoC (Denys Drozdov) and minor fixes (Stefan Agner). - Fix CPPC driver's freq/performance conversions (Pierre Gondois). - Minor generic cleanups (Yury Norov). - Introduce opp-microwatt property to the OPP core, bindings, etc (Lukasz Luba). - Convert DT bindings to schema format and various related fixes (Yassine Oudjana). - Expose OPP's OF node in debugfs (Viresh Kumar). - Add Intel uncore frequency scaling documentation file to its MAINTAINERS entry (Srinivas Pandruvada). - Clean up the AMD P-state driver documentation (Jan Engelhardt)" * tag 'pm-5.18-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (24 commits) Documentation: amd-pstate: grammar and sentence structure updates dt-bindings: cpufreq: cpufreq-qcom-hw: Convert to YAML bindings dt-bindings: dvfs: Use MediaTek CPUFREQ HW as an example Documentation: EM: Describe new registration method using DT OPP: Add support of "opp-microwatt" for EM registration PM: EM: add macro to set .active_power() callback conditionally OPP: Add "opp-microwatt" supporting code dt-bindings: opp: Add "opp-microwatt" entry in the OPP MAINTAINERS: Add additional file to uncore frequency control cpufreq: blocklist Qualcomm sc8280xp and sa8540p in cpufreq-dt-platdev cpufreq: qcom-hw: Add support for per-core-dcvs dt-bindings: power: avs: qcom,cpr: Convert to DT schema arm64: dts: qcom: qcs404: Rename CPU and CPR OPP tables arm64: dts: qcom: msm8996: Rename cluster OPP tables dt-bindings: opp: Convert qcom-nvmem-cpufreq to DT schema dt-bindings: opp: qcom-opp: Convert to DT schema arm64: dts: qcom: msm8996-mtp: Add msm8996 compatible dt-bindings: arm: qcom: Add msm8996 and apq8096 compatibles opp: Expose of-node's name in debugfs cpufreq: CPPC: Fix performance/frequency conversion ...
2022-03-29Merge branches 'clk-sifive' and 'clk-visconti' into clk-nextStephen Boyd2-24/+24
* clk-sifive: clk: sifive: Move all stuff into SoCs header files from C files clk: sifive: Add SoCs prefix in each SoCs-dependent data riscv: dts: Change the macro name of prci in each device node dt-bindings: change the macro name of prci in header files and example clk: sifive: duplicate the macro definitions for the time being * clk-visconti: clk: visconti: prevent array overflow in visconti_clk_register_gates()
2022-03-29Merge branch 'pm-opp'Rafael J. Wysocki3-5/+5
Merge OPP (Operating Performance Points) changes for 5.18-rc1. * pm-opp: Documentation: EM: Describe new registration method using DT OPP: Add support of "opp-microwatt" for EM registration PM: EM: add macro to set .active_power() callback conditionally OPP: Add "opp-microwatt" supporting code dt-bindings: opp: Add "opp-microwatt" entry in the OPP dt-bindings: power: avs: qcom,cpr: Convert to DT schema arm64: dts: qcom: qcs404: Rename CPU and CPR OPP tables arm64: dts: qcom: msm8996: Rename cluster OPP tables dt-bindings: opp: Convert qcom-nvmem-cpufreq to DT schema dt-bindings: opp: qcom-opp: Convert to DT schema arm64: dts: qcom: msm8996-mtp: Add msm8996 compatible dt-bindings: arm: qcom: Add msm8996 and apq8096 compatibles opp: Expose of-node's name in debugfs
2022-03-29Merge tag 'dma-mapping-5.18' of git://git.infradead.org/users/hch/dma-mappingLinus Torvalds5-12/+13
Pull dma-mapping updates from Christoph Hellwig: - do not zero buffer in set_memory_decrypted (Kirill A. Shutemov) - fix return value of dma-debug __setup handlers (Randy Dunlap) - swiotlb cleanups (Robin Murphy) - remove most remaining users of the pci-dma-compat.h API (Christophe JAILLET) - share the ABI header for the DMA map_benchmark with userspace (Tian Tao) - update the maintainer for DMA MAPPING BENCHMARK (Xiang Chen) - remove CONFIG_DMA_REMAP (me) * tag 'dma-mapping-5.18' of git://git.infradead.org/users/hch/dma-mapping: dma-mapping: benchmark: extract a common header file for map_benchmark definition dma-debug: fix return value of __setup handlers dma-mapping: remove CONFIG_DMA_REMAP media: v4l2-pci-skeleton: Remove usage of the deprecated "pci-dma-compat.h" API rapidio/tsi721: Remove usage of the deprecated "pci-dma-compat.h" API sparc: Remove usage of the deprecated "pci-dma-compat.h" API agp/intel: Remove usage of the deprecated "pci-dma-compat.h" API alpha: Remove usage of the deprecated "pci-dma-compat.h" API MAINTAINERS: update maintainer list of DMA MAPPING BENCHMARK swiotlb: simplify array allocation swiotlb: tidy up includes swiotlb: simplify debugfs setup swiotlb: do not zero buffer in set_memory_decrypted()
2022-03-29Revert "parisc: Fix invalidate/flush vmap routines"Helge Deller1-19/+5
This reverts commit 53d862fac4a09b9c56cca0433fa9de5732fd05a1. It turned out that flush_kernel_vmap_range() is being called with interrupts disabled. There's no way to flush entire cache with interrupts disabled. Signed-off-by: Helge Deller <deller@gmx.de>
2022-03-29x86,kprobes: Fix optprobe trampoline to generate complete pt_regsMasami Hiramatsu1-9/+16
Currently the optprobe trampoline template code ganerate an almost complete pt_regs on-stack, everything except regs->ss. The 'regs->ss' points to the top of stack, which is not a valid segment decriptor. As same as the rethook does, complete the job by also pushing ss. Suggested-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/164826166027.2455864.14759128090648961900.stgit@devnote2
2022-03-29x86,rethook: Fix arch_rethook_trampoline() to generate a complete pt_regsPeter Zijlstra1-11/+13
Currently arch_rethook_trampoline() generates an almost complete pt_regs on-stack, everything except regs->ss that is, that currently points to the fake return address, which is not a valid segment descriptor. Since interpretation of regs->[sb]p should be done in the context of regs->ss, and we have code actually doing that (see arch/x86/lib/insn-eval.c for instance), complete the job by also pushing ss. This ensures that anybody who does do look at regs->ss doesn't mysteriously malfunction, avoiding much future pain. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Link: https://lore.kernel.org/bpf/164826164851.2455864.17272661073069737350.stgit@devnote2
2022-03-29x86,rethook,kprobes: Replace kretprobe with rethook on x86Masami Hiramatsu7-124/+144
Replaces the kretprobe code with rethook on x86. With this patch, kretprobe on x86 uses the rethook instead of kretprobe specific trampoline code. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Tested-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/bpf/164826163692.2455864.13745421016848209527.stgit@devnote2
2022-03-29kprobes: Use rethook for kretprobe if possibleMasami Hiramatsu1-1/+7
Use rethook for kretprobe function return hooking if the arch sets CONFIG_HAVE_RETHOOK=y. In this case, CONFIG_KRETPROBE_ON_RETHOOK is set to 'y' automatically, and the kretprobe internal data fields switches to use rethook. If not, it continues to use kretprobe specific function return hooks. Suggested-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/164826162556.2455864.12255833167233452047.stgit@devnote2
2022-03-29Merge tag 'ptrace-cleanups-for-v5.18' of ↵Linus Torvalds52-131/+103
git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace Pull ptrace cleanups from Eric Biederman: "This set of changes removes tracehook.h, moves modification of all of the ptrace fields inside of siglock to remove races, adds a missing permission check to ptrace.c The removal of tracehook.h is quite significant as it has been a major source of confusion in recent years. Much of that confusion was around task_work and TIF_NOTIFY_SIGNAL (which I have now decoupled making the semantics clearer). For people who don't know tracehook.h is a vestiage of an attempt to implement uprobes like functionality that was never fully merged, and was later superseeded by uprobes when uprobes was merged. For many years now we have been removing what tracehook functionaly a little bit at a time. To the point where anything left in tracehook.h was some weird strange thing that was difficult to understand" * tag 'ptrace-cleanups-for-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: ptrace: Remove duplicated include in ptrace.c ptrace: Check PTRACE_O_SUSPEND_SECCOMP permission on PTRACE_SEIZE ptrace: Return the signal to continue with from ptrace_stop ptrace: Move setting/clearing ptrace_message into ptrace_stop tracehook: Remove tracehook.h resume_user_mode: Move to resume_user_mode.h resume_user_mode: Remove #ifdef TIF_NOTIFY_RESUME in set_notify_resume signal: Move set_notify_signal and clear_notify_signal into sched/signal.h task_work: Decouple TIF_NOTIFY_SIGNAL and task_work task_work: Call tracehook_notify_signal from get_signal on all architectures task_work: Introduce task_work_pending task_work: Remove unnecessary include from posix_timers.h ptrace: Remove tracehook_signal_handler ptrace: Remove arch_syscall_{enter,exit}_tracehook ptrace: Create ptrace_report_syscall_{entry,exit} in ptrace.h ptrace/arm: Rename tracehook_report_syscall report_syscall ptrace: Move ptrace_report_syscall into ptrace.h
2022-03-29Merge tag 'microblaze-v5.18' of git://git.monstr.eu/linux-2.6-microblazeLinus Torvalds4-55/+2
Pull microblaze updates from Michal Simek: - Small fixups - Remove unused pci_phys_mem_access_prot() * tag 'microblaze-v5.18' of git://git.monstr.eu/linux-2.6-microblaze: microblaze/PCI: Remove pci_phys_mem_access_prot() dead code microblaze: add const to of_device_id microblaze: fix typo in a comment
2022-03-29Merge tag 'for-linus-5.18-rc1-tag' of ↵Linus Torvalds7-11/+38
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen updates from Juergen Gross: - A bunch of minor cleanups - A fix for kexec in Xen dom0 when executed on a high cpu number - A fix for resuming after suspend of a Xen guest with assigned PCI devices - A fix for a crash due to not disabled preemption when resuming as Xen dom0 * tag 'for-linus-5.18-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen: fix is_xen_pmu() xen: don't hang when resuming PCI device arch:x86:xen: Remove unnecessary assignment in xen_apic_read() xen/grant-table: remove readonly parameter from functions xen/grant-table: remove gnttab_*transfer*() functions drivers/xen: use helper macro __ATTR_RW x86/xen: Fix kerneldoc warning xen: delay xen_hvm_init_time_ops() if kdump is boot on vcpu>=32 xen: use time_is_before_eq_jiffies() instead of open coding it
2022-03-28Merge tag 'tty-5.18-rc1' of ↵Linus Torvalds3-432/+12
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver updates from Greg KH: "Here are the big set of tty and serial driver changes for 5.18-rc1. Nothing major, some more good cleanups from Jiri and 2 new serial drivers. Highlights include: - termbits cleanups - export symbol cleanups and other core cleanups from Jiri Slaby - new sunplus and mvebu uart drivers (amazing that people are still creating new uarts...) - samsung serial driver cleanups - ldisc 29 is now "reserved" for experimental/development line disciplines - lots of other tiny fixes and cleanups to serial drivers and bindings All of these have been in linux-next for a while with no reported issues" * tag 'tty-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (104 commits) vt_ioctl: fix potential spectre v1 in VT_DISALLOCATE serial: 8250: fix XOFF/XON sending when DMA is used tty: serial: samsung: Add ARTPEC-8 support dt-bindings: serial: samsung: Add ARTPEC-8 UART serial: sc16is7xx: Clear RS485 bits in the shutdown tty: serial: samsung: simplify getting OF match data tty: serial: samsung: constify variables and pointers tty: serial: samsung: constify s3c24xx_serial_drv_data members tty: serial: samsung: constify UART name tty: serial: samsung: constify s3c24xx_serial_drv_data tty: serial: samsung: reduce number of casts tty: serial: samsung: embed s3c2410_uartcfg in parent structure tty: serial: samsung: embed s3c24xx_uart_info in parent structure serial: 8250_tegra: mark acpi_device_id as unused with !ACPI tty: serial: bcm63xx: use more precise Kconfig symbol serial: SERIAL_SUNPLUS should depend on ARCH_SUNPLUS tty: serial: jsm: fix two assignments in if conditions tty: serial: jsm: remove redundant assignments to variable linestatus serial: 8250_mtk: make two read-only arrays static const serial: samsung_tty: do not unlock port->lock for uart_write_wakeup() ...
2022-03-28Merge tag 'staging-5.18-rc1' of ↵Linus Torvalds5-0/+756
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging driver updates from Greg KH: "Here is the big set of staging driver updates for 5.18-rc1. Loads of tiny cleanups for almost all staging drivers in here, nothing major at all. Highlights include: - remove the ashmem Android driver. It is long-dead and if there are any legacy userspace applications still using it, the Android kernel images will maintain it, the community shouldn't care about it anymore - wfx wifi driver major cleanups. Should be ready to merge out of staging soon, and will coordinate with the wifi maintainers after -rc1 is out - major cleanups and unwinding of the layers of the r8188eu driver. It's amazing just how many unneeded layers of abstraction is in there, just when we think it's done, another is found... - lots of tiny coding style cleanups in many other staging drivers. All have been in linux-next for a while with no reported problems" * tag 'staging-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (455 commits) staging: r8188eu: remove unnecessary memset in r8188eu staging: greybus: introduce pwm_ops::apply staging: rts5208: Resolve checkpatch.pl issues. staging: sm750fb: fix naming style staging: fbtft: Consider type of init sequence values in fbtft_init_display() staging: fbtft: Constify buf parameter in fbtft_dbg_hex() staging: mmal-vchiq: clear redundant item named bulk_scratch mips: dts: ralink: add MT7621 SoC staging: r8188eu: remove some unused local ieee80211 macros staging: r8188eu: make rtl8188e_process_phy_info static staging: r8188eu: remove unused function prototype staging: r8188eu: remove three unused receive defines staging: r8188eu: remove unnecessary initializations staging: rtl8192e: Fix spelling mistake "RESQUEST" -> "REQUEST" MAINTAINERS: remove the obsolete file entry for staging in ANDROID DRIVERS staging: r8188eu: proper error handling in rtw_init_drv_sw staging: r8188eu: call _cancel_timer_ex from _rtw_free_recv_priv staging: vt6656: Removed unused variable vt3342_vnt_threshold staging: vt6656: Removed unused variable bb_vga_0 staging: remove ashmem ...
2022-03-28Merge tag 'driver-core-5.18-rc1' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the set of driver core changes for 5.18-rc1. Not much here, primarily it was a bunch of cleanups and small updates: - kobj_type cleanups for default_groups - documentation updates - firmware loader minor changes - component common helper added and take advantage of it in many drivers (the largest part of this pull request). All of these have been in linux-next for a while with no reported problems" * tag 'driver-core-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (54 commits) Documentation: update stable review cycle documentation drivers/base/dd.c : Remove the initial value of the global variable Documentation: update stable tree link Documentation: add link to stable release candidate tree devres: fix typos in comments Documentation: add note block surrounding security patch note samples/kobject: Use sysfs_emit instead of sprintf base: soc: Make soc_device_match() simpler and easier to read driver core: dd: fix return value of __setup handler driver core: Refactor sysfs and drv/bus remove hooks driver core: Refactor multiple copies of device cleanup scripts: get_abi.pl: Fix typo in help message kernfs: fix typos in comments kernfs: remove unneeded #if 0 guard ALSA: hda/realtek: Make use of the helper component_compare_dev_name video: omapfb: dss: Make use of the helper component_compare_dev power: supply: ab8500: Make use of the helper component_compare_dev ASoC: codecs: wcd938x: Make use of the helper component_compare/release_of iommu/mediatek: Make use of the helper component_compare/release_of drm: of: Make use of the helper component_release_of ...
2022-03-28Merge tag 'char-misc-5.18-rc1' of ↵Linus Torvalds14-3/+53
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc and other driver updates from Greg KH: "Here is the big set of char/misc and other small driver subsystem updates for 5.18-rc1. Included in here are merges from driver subsystems which contain: - iio driver updates and new drivers - fsi driver updates - fpga driver updates - habanalabs driver updates and support for new hardware - soundwire driver updates and new drivers - phy driver updates and new drivers - coresight driver updates - icc driver updates Individual changes include: - mei driver updates - interconnect driver updates - new PECI driver subsystem added - vmci driver updates - lots of tiny misc/char driver updates All of these have been in linux-next for a while with no reported problems" * tag 'char-misc-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (556 commits) firmware: google: Properly state IOMEM dependency kgdbts: fix return value of __setup handler firmware: sysfb: fix platform-device leak in error path firmware: stratix10-svc: add missing callback parameter on RSU arm64: dts: qcom: add non-secure domain property to fastrpc nodes misc: fastrpc: Add dma handle implementation misc: fastrpc: Add fdlist implementation misc: fastrpc: Add helper function to get list and page misc: fastrpc: Add support to secure memory map dt-bindings: misc: add fastrpc domain vmid property misc: fastrpc: check before loading process to the DSP misc: fastrpc: add secure domain support dt-bindings: misc: add property to support non-secure DSP misc: fastrpc: Add support to get DSP capabilities misc: fastrpc: add support for FASTRPC_IOCTL_MEM_MAP/UNMAP misc: fastrpc: separate fastrpc device from channel context dt-bindings: nvmem: brcm,nvram: add basic NVMEM cells dt-bindings: nvmem: make "reg" property optional nvmem: brcm_nvram: parse NVRAM content into NVMEM cells nvmem: dt-bindings: Fix the error of dt-bindings check ...
2022-03-28powerpc: restore removed #endifStephen Rothwell1-0/+1
Fixes: 7001052160d1 ("Merge tag 'x86_core_for_5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip") Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Brown-paper-bag-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-03-27Merge tag 'for-linus' of https://github.com/openrisc/linuxLinus Torvalds1-1/+1
Pull OpenRISC updates from Stafford Horne: "Not much for OpenRISC this merge window, I do have some things on the back burner like sparse warning cleanups and new defconfigs. But I didn't get time to polish the patches off for this round. There are OpenRISC updates coming in via other queues like removal of set_fs() and possibly new generic ticket locks. This just has a small fixup to remove duplicate initializer in memcpy from Kuniyuki Iwashima" * tag 'for-linus' of https://github.com/openrisc/linux: openrisc/boot: Remove unnecessary initialisation in memcpy().
2022-03-27Merge tag 'x86_core_for_5.18_rc1' of ↵Linus Torvalds57-169/+703
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 CET-IBT (Control-Flow-Integrity) support from Peter Zijlstra: "Add support for Intel CET-IBT, available since Tigerlake (11th gen), which is a coarse grained, hardware based, forward edge Control-Flow-Integrity mechanism where any indirect CALL/JMP must target an ENDBR instruction or suffer #CP. Additionally, since Alderlake (12th gen)/Sapphire-Rapids, speculation is limited to 2 instructions (and typically fewer) on branch targets not starting with ENDBR. CET-IBT also limits speculation of the next sequential instruction after the indirect CALL/JMP [1]. CET-IBT is fundamentally incompatible with retpolines, but provides, as described above, speculation limits itself" [1] https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/branch-history-injection.html * tag 'x86_core_for_5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (53 commits) kvm/emulate: Fix SETcc emulation for ENDBR x86/Kconfig: Only allow CONFIG_X86_KERNEL_IBT with ld.lld >= 14.0.0 x86/Kconfig: Only enable CONFIG_CC_HAS_IBT for clang >= 14.0.0 kbuild: Fixup the IBT kbuild changes x86/Kconfig: Do not allow CONFIG_X86_X32_ABI=y with llvm-objcopy x86: Remove toolchain check for X32 ABI capability x86/alternative: Use .ibt_endbr_seal to seal indirect calls objtool: Find unused ENDBR instructions objtool: Validate IBT assumptions objtool: Add IBT/ENDBR decoding objtool: Read the NOENDBR annotation x86: Annotate idtentry_df() x86,objtool: Move the ASM_REACHABLE annotation to objtool.h x86: Annotate call_on_stack() objtool: Rework ASM_REACHABLE x86: Mark __invalid_creds() __noreturn exit: Mark do_group_exit() __noreturn x86: Mark stop_this_cpu() __noreturn objtool: Ignore extra-symbol code objtool: Rename --duplicate to --lto ...
2022-03-26Merge tag 'usb-5.18-rc1' of ↵Linus Torvalds6-11/+14
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB/Thunderbolt updates from Greg KH: "Here is the big set of USB and Thunderbolt changes for 5.18-rc1. Nothing major in here, just lots of little improvements and cleanups and new device support. Highlights are: - list iterator fixups for when we walk past the end of the list (a common problem that was cut/pasted in almost all USB gadget drivers) - xen USB driver "hardening" for malicious hosts - xhci driver updates and fixes for more hardware types - xhci debug cable fixes to make it actually work again - usb gadget audio driver improvements - usb gadget storage fixes to work with OS-X - lots of other small usb gadget fixes and updates - USB DWC3 driver improvements for more hardware types - Lots of other small USB driver improvements - DTS updates for some USB platforms All of these have been in linux-next for a while with no reported issues" * tag 'usb-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (172 commits) usb: gadget: fsl_qe_udc: Add missing semicolon in qe_ep_dequeue() dt-bindings: usb: mtk-xhci: add compatible for mt8186 usb: dwc3: Issue core soft reset before enabling run/stop usb: gadget: Makefile: remove ccflags-y USB: usb-storage: Fix use of bitfields for hardware data in ene_ub6250.c usb: gadget: eliminate anonymous module_init & module_exit usb: usbip: eliminate anonymous module_init & module_exit xen/usb: harden xen_hcd against malicious backends usb: dwc3: gadget: Wait for ep0 xfers to complete during dequeue usb: dwc3: gadget: move cmd_endtransfer to extra function usb: dwc3: gadget: ep_queue simplify isoc start condition xen/usb: don't use arbitrary_virt_to_machine() usb: isp1760: remove redundant max_packet() macro usb: oxu210hp-hcd: remove redundant call to max_packet() macro usb: common: usb-conn-gpio: Make VBUS supply completely optional USB: storage: ums-realtek: fix error code in rts51x_read_mem() usb: early: xhci-dbc: Fix xdbc number parsing usb: early: xhci-dbc: Remove duplicate keep parsing x86/tsc: Be consistent about use_tsc_delay() usb: gadget: udc: s3c2410: remove usage of list iterator past the loop body ...
2022-03-26Merge tag 'memcpy-v5.18-rc1' of ↵Linus Torvalds2-1/+3
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull FORTIFY_SOURCE updates from Kees Cook: "This series consists of two halves: - strict compile-time buffer size checking under FORTIFY_SOURCE for the memcpy()-family of functions (for extensive details and rationale, see the first commit) - enabling FORTIFY_SOURCE for Clang, which has had many overlapping bugs that we've finally worked past" * tag 'memcpy-v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: fortify: Add Clang support fortify: Make sure strlen() may still be used as a constant expression fortify: Use __diagnose_as() for better diagnostic coverage fortify: Make pointer arguments const Compiler Attributes: Add __diagnose_as for Clang Compiler Attributes: Add __overloadable for Clang Compiler Attributes: Add __pass_object_size for Clang fortify: Replace open-coded __gnu_inline attribute fortify: Update compile-time tests for Clang 14 fortify: Detect struct member overflows in memset() at compile-time fortify: Detect struct member overflows in memmove() at compile-time fortify: Detect struct member overflows in memcpy() at compile-time
2022-03-25Merge tag 'pci-v5.18-changes' of ↵Linus Torvalds7-7/+8
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull pci updates from Bjorn Helgaas: "Enumeration: - Move the VGA arbiter from drivers/gpu to drivers/pci because it's PCI-specific, not GPU-specific (Bjorn Helgaas) - Select the default VGA device consistently whether it's enumerated before or after VGA arbiter init, which fixes arches that enumerate PCI devices late (Huacai Chen) Resource management: - Support BAR sizes up to 8TB (Dongdong Liu) PCIe native device hotplug: - Fix "Command Completed" tracking to avoid spurious timouts when powering off empty slots (Liguang Zhang) - Quirk Qualcomm devices that don't implement Command Completed correctly, again to avoid spurious timeouts (Manivannan Sadhasivam) Peer-to-peer DMA: - Add Intel 3rd Gen Intel Xeon Scalable Processors to whitelist (Michael J. Ruhl) APM X-Gene PCIe controller driver: - Revert generic DT parsing changes that broke some machines in the field (Marc Zyngier) Freescale i.MX6 PCIe controller driver: - Allow controller probe to succeed even when no devices currently present to allow hot-add later (Fabio Estevam) - Enable power management on i.MX6QP (Richard Zhu) - Assert CLKREQ# on i.MX8MM so enumeration doesn't hang when no device is connected (Richard Zhu) Marvell Aardvark PCIe controller driver: - Fix MSI and MSI-X support (Marek Behún, Pali Rohár) - Add support for ERR and PME interrupts (Pali Rohár) Marvell MVEBU PCIe controller driver: - Add DT binding and support for "num-lanes" (Pali Rohár) - Add support for INTx interrupts (Pali Rohár) Microsoft Hyper-V host bridge driver: - Avoid unnecessary hypercalls when unmasking IRQs on ARM64 (Boqun Feng) Qualcomm PCIe controller driver: - Add SM8450 DT binding and driver support (Dmitry Baryshkov) Renesas R-Car PCIe controller driver: - Help the controller get to the L1 state since the hardware can't do it on its own (Marek Vasut) - Return PCI_ERROR_RESPONSE (~0) for reads that fail on PCIe (Marek Vasut) SiFive FU740 PCIe controller driver: - Drop redundant '-gpios' from DT GPIO lookup (Ben Dooks) - Force 2.5GT/s for initial device probe (Ben Dooks) Socionext UniPhier Pro5 controller driver: - Add NX1 DT binding and driver support (Kunihiko Hayashi) Synopsys DesignWare PCIe controller driver: - Restore MSI configuration so MSI works after resume (Jisheng Zhang)" * tag 'pci-v5.18-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (94 commits) x86/PCI: Add #includes to asm/pci_x86.h PCI: ibmphp: Remove unused assignments PCI: cpqphp: Remove unused assignments PCI: fu740: Remove unused assignments PCI: kirin: Remove unused assignments PCI: Remove unused assignments PCI: Declare pci_filp_private only when HAVE_PCI_MMAP PCI: Avoid broken MSI on SB600 USB devices PCI: fu740: Force 2.5GT/s for initial device probe PCI: xgene: Revert "PCI: xgene: Fix IB window setup" PCI: xgene: Revert "PCI: xgene: Use inbound resources for setup" PCI: imx6: Assert i.MX8MM CLKREQ# even if no device present PCI: imx6: Invoke the PHY exit function after PHY power off PCI: rcar: Use PCI_SET_ERROR_RESPONSE after read which triggered an exception PCI: rcar: Finish transition to L1 state in rcar_pcie_config_access() PCI: dwc: Restore MSI Receiver mask during resume PCI: fu740: Drop redundant '-gpios' from DT GPIO lookup PCI/VGA: Replace full MIT license text with SPDX identifier PCI/VGA: Use unsigned format string to print lock counts PCI/VGA: Log bridge control messages when adding devices ...
2022-03-25Merge tag 'ras_core_for_v5.18_rc1' of ↵Linus Torvalds3-90/+139
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RAS updates from Borislav Petkov: - More noinstr fixes - Add an erratum workaround for Intel CPUs which, in certain circumstances, end up consuming an unrelated uncorrectable memory error when using fast string copy insns - Remove the MCE tolerance level control as it is not really needed or used anymore * tag 'ras_core_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mce: Remove the tolerance level control x86/mce: Work around an erratum on fast string copy instructions x86/mce: Use arch atomic and bit helpers
2022-03-25xen: fix is_xen_pmu()Juergen Gross3-8/+7
is_xen_pmu() is taking the cpu number as parameter, but it is not using it. Instead it just tests whether the Xen PMU initialization on the current cpu did succeed. As this test is done by checking a percpu pointer, preemption needs to be disabled in order to avoid switching the cpu while doing the test. While resuming from suspend() this seems not to be the case: [ 88.082751] ACPI: PM: Low-level resume complete [ 88.087933] ACPI: EC: EC started [ 88.091464] ACPI: PM: Restoring platform NVS memory [ 88.097166] xen_acpi_processor: Uploading Xen processor PM info [ 88.103850] Enabling non-boot CPUs ... [ 88.108128] installing Xen timer for CPU 1 [ 88.112763] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-sleep/7138 [ 88.122256] caller is is_xen_pmu+0x12/0x30 [ 88.126937] CPU: 0 PID: 7138 Comm: systemd-sleep Tainted: G W 5.16.13-2.fc32.qubes.x86_64 #1 [ 88.137939] Hardware name: Star Labs StarBook/StarBook, BIOS 7.97 03/21/2022 [ 88.145930] Call Trace: [ 88.148757] <TASK> [ 88.151193] dump_stack_lvl+0x48/0x5e [ 88.155381] check_preemption_disabled+0xde/0xe0 [ 88.160641] is_xen_pmu+0x12/0x30 [ 88.164441] xen_smp_intr_init_pv+0x75/0x100 Fix that by replacing is_xen_pmu() by a simple boolean variable which reflects the Xen PMU initialization state on cpu 0. Modify xen_pmu_init() to return early in case it is being called for a cpu other than cpu 0 and the boolean variable not being set. Fixes: bf6dfb154d93 ("xen/PMU: PMU emulation code") Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com> Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Link: https://lore.kernel.org/r/20220325142002.31789-1-jgross@suse.com Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2022-03-25Merge tag 'platform-drivers-x86-v5.18-1' of ↵Linus Torvalds2-0/+219
git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 Pull x86 platform driver updates from Hans de Goede: "New drivers: - AMD Host System Management Port (HSMP) - Intel Software Defined Silicon Removed drivers (functionality folded into other drivers): - intel_cht_int33fe_microb - surface3_button amd-pmc: - s2idle bug-fixes - Support for AMD Spill to DRAM STB feature hp-wmi: - Fix SW_TABLET_MODE detection method (and other fixes) - Support omen thermal profile policy v1 serial-multi-instantiate: - Add SPI device support - Add support for CS35L41 amplifiers used in new laptops think-lmi: - syfs-class-firmware-attributes Certificate authentication support thinkpad_acpi: - Fixes + quirks - Add platform_profile support on AMD based ThinkPads x86-android-tablets: - Improve Asus ME176C / TF103C support - Support Nextbook Ares 8, Lenovo Tab 2 830 and 1050 tablets Lots of various other small fixes and hardware-id additions" * tag 'platform-drivers-x86-v5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (60 commits) platform/x86: think-lmi: Certificate authentication support Documentation: syfs-class-firmware-attributes: Lenovo Certificate support platform/x86: amd-pmc: Only report STB errors when STB enabled platform/x86: amd-pmc: Drop CPU QoS workaround platform/x86: amd-pmc: Output error codes in messages platform/x86: amd-pmc: Move to later in the suspend process ACPI / x86: Add support for LPS0 callback handler platform/x86: thinkpad_acpi: consistently check fan_get_status return. platform/x86: hp-wmi: support omen thermal profile policy v1 platform/x86: hp-wmi: Changing bios_args.data to be dynamically allocated platform/x86: hp-wmi: Fix 0x05 error code reported by several WMI calls platform/x86: hp-wmi: Fix SW_TABLET_MODE detection method platform/x86: hp-wmi: Fix hp_wmi_read_int() reporting error (0x05) platform/x86: amd-pmc: Validate entry into the deepest state on resume platform/x86: thinkpad_acpi: Don't use test_bit on an integer platform/x86: thinkpad_acpi: Fix compiler warning about uninitialized err variable platform/x86: thinkpad_acpi: clean up dytc profile convert platform/x86: x86-android-tablets: Depend on EFI and SPI platform/x86: amd-pmc: uninitialized variable in amd_pmc_s2d_init() platform/x86: intel-uncore-freq: fix uncore_freq_common_init() error codes ...
2022-03-25Merge tag 'kbuild-gnu11-v5.18' of ↵Linus Torvalds1-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild update for C11 language base from Masahiro Yamada: "Kbuild -std=gnu11 updates for v5.18 Linus pointed out the benefits of C99 some years ago, especially variable declarations in loops [1]. At that time, we were not ready for the migration due to old compilers. Recently, Jakob Koschel reported a bug in list_for_each_entry(), which leaks the invalid pointer out of the loop [2]. In the discussion, we agreed that the time had come. Now that GCC 5.1 is the minimum compiler version, there is nothing to prevent us from going to -std=gnu99, or even straight to -std=gnu11. Discussions for a better list iterator implementation are ongoing, but this patch set must land first" [1] https://lore.kernel.org/all/CAHk-=wgr12JkKmRd21qh-se-_Gs69kbPgR9x4C+Es-yJV2GLkA@mail.gmail.com/ [2] https://lore.kernel.org/lkml/86C4CE7D-6D93-456B-AA82-F8ADEACA40B7@gmail.com/ * tag 'kbuild-gnu11-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: Kbuild: use -std=gnu11 for KBUILD_USERCFLAGS Kbuild: move to -std=gnu11 Kbuild: use -Wdeclaration-after-statement Kbuild: add -Wno-shift-negative-value where -Wextra is used
2022-03-25Merge branch 'akpm' (patches from Andrew)Linus Torvalds15-13/+27
Merge yet more updates from Andrew Morton: "This is the material which was staged after willystuff in linux-next. Subsystems affected by this patch series: mm (debug, selftests, pagecache, thp, rmap, migration, kasan, hugetlb, pagemap, madvise), and selftests" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (113 commits) selftests: kselftest framework: provide "finished" helper mm: madvise: MADV_DONTNEED_LOCKED mm: fix race between MADV_FREE reclaim and blkdev direct IO read mm: generalize ARCH_HAS_FILTER_PGPROT mm: unmap_mapping_range_tree() with i_mmap_rwsem shared mm: warn on deleting redirtied only if accounted mm/huge_memory: remove stale locking logic from __split_huge_pmd() mm/huge_memory: remove stale page_trans_huge_mapcount() mm/swapfile: remove stale reuse_swap_page() mm/khugepaged: remove reuse_swap_page() usage mm/huge_memory: streamline COW logic in do_huge_pmd_wp_page() mm: streamline COW logic in do_swap_page() mm: slightly clarify KSM logic in do_swap_page() mm: optimize do_wp_page() for fresh pages in local LRU pagevecs mm: optimize do_wp_page() for exclusive pages in the swapcache mm/huge_memory: make is_transparent_hugepage() static userfaultfd/selftests: enable hugetlb remap and remove event testing selftests/vm: add hugetlb madvise MADV_DONTNEED MADV_REMOVE test mm: enable MADV_DONTNEED for hugetlb mappings kasan: disable LOCKDEP when printing reports ...
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