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2022-10-03shmem: remove shmem_getpage()Matthew Wilcox (Oracle)
With all callers removed, remove this wrapper function. The flags are now mysteriously called SGP, but I think we can live with that. Link: https://lkml.kernel.org/r/20220902194653.1739778-34-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-10-03shmem: add shmem_get_folio()Matthew Wilcox (Oracle)
With no remaining callers of shmem_getpage_gfp(), add shmem_get_folio() and reimplement shmem_getpage() as a call to shmem_get_folio(). Link: https://lkml.kernel.org/r/20220902194653.1739778-25-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-10-03memcg: convert mem_cgroup_swapin_charge_page() to ↵Matthew Wilcox (Oracle)
mem_cgroup_swapin_charge_folio() All callers now have a folio, so pass it in here and remove an unnecessary call to page_folio(). Link: https://lkml.kernel.org/r/20220902194653.1739778-17-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-10-03mm/swap: convert put_swap_page() to put_swap_folio()Matthew Wilcox (Oracle)
With all callers now using a folio, we can convert this function. Link: https://lkml.kernel.org/r/20220902194653.1739778-14-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-10-03mm/swapfile: convert try_to_free_swap() to folio_free_swap()Matthew Wilcox (Oracle)
Add kernel-doc for folio_free_swap() and make it return bool. Add a try_to_free_swap() compatibility wrapper. Link: https://lkml.kernel.org/r/20220902194653.1739778-11-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-10-03shmem: convert shmem_replace_page() to use folios throughoutMatthew Wilcox (Oracle)
Introduce folio_set_swap_entry() to abstract how both folio->private and swp_entry_t work. Use swap_address_space() directly instead of indirecting through folio_mapping(). Include an assertion that the old folio is not large as we only allocate a single-page folio to replace it. Use folio_put_refs() instead of calling folio_put() twice. Link: https://lkml.kernel.org/r/20220902194653.1739778-9-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-10-03mm: add folio_add_lru_vma()Matthew Wilcox (Oracle)
Convert lru_cache_add_inactive_or_unevictable() to folio_add_lru_vma() and add a compatibility wrapper. Link: https://lkml.kernel.org/r/20220902194653.1739778-6-willy@infradead.org Signed-off-by: "Matthew Wilcox (Oracle)" <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-10-03mm: add split_folio()Matthew Wilcox (Oracle)
This wrapper removes a need to use split_huge_page(&folio->page). Convert two callers. Link: https://lkml.kernel.org/r/20220902194653.1739778-5-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-10-03mm: reimplement folio_order() and folio_nr_pages()Matthew Wilcox (Oracle)
Instead of calling compound_order() and compound_nr_pages(), use the folio directly. Saves 1905 bytes from mm/filemap.o due to folio_test_large() now being a cheaper check than PageHead(). Link: https://lkml.kernel.org/r/20220902194653.1739778-4-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-10-03mm: add the first tail page to struct folioMatthew Wilcox (Oracle)
Some of the static checkers get confused by extracting the page from the folio and referring to fields in the first tail page. Adding these fields to struct folio lets us avoid doing that. It has the risk that people will refer to those fields without checking that the folio is actually a large folio, so prefix them with underscores and document the preferred function to use instead. Link: https://lkml.kernel.org/r/20220902194653.1739778-3-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-10-03ksm: remove redundant declarations in ksm.hQi Zheng
Currently, for struct stable_node, no one uses it in both the include/linux/ksm.h file and the file that contains it. For struct mem_cgroup, it's also not used in ksm.h. So they're all redundant, just remove them. Link: https://lkml.kernel.org/r/20220831031951.43152-4-zhengqi.arch@bytedance.com Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Mike Rapoport <rppt@kernel.org> Cc: Minchan Kim <minchan@kernel.org> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Yang Shi <shy828301@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-10-03Merge tag 'pm-6.1-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: "These add support for some new hardware, extend the existing hardware support, fix some issues and clean up code Specifics: - Add isupport for Tiger Lake in no-HWP mode to intel_pstate (Doug Smythies) - Update the AMD P-state driver (Perry Yuan): - Fix wrong lowest perf fetch - Map desired perf into pstate scope for powersave governor - Update pstate frequency transition delay time - Fix initial highest_perf value - Clean up - Move max CPU capacity to sugov_policy in the schedutil cpufreq governor (Lukasz Luba) - Add SM6115 to cpufreq-dt blocklist (Adam Skladowski) - Add support for Tegra239 and minor cleanups (Sumit Gupta, ye xingchen, and Yang Yingliang) - Add freq qos for qcom cpufreq driver and minor cleanups (Xuewen Yan, and Viresh Kumar) - Minor cleanups around functions called at module_init() (Xiu Jianfeng) - Use module_init and add module_exit for bmips driver (Zhang Jianhua) - Add AlderLake-N support to intel_idle (Zhang Rui) - Replace strlcpy() with unused retval with strscpy() in intel_idle (Wolfram Sang) - Remove redundant check from cpuidle_switch_governor() (Yu Liao) - Replace strlcpy() with unused retval with strscpy() in the powernv cpuidle driver (Wolfram Sang) - Drop duplicate word from a comment in the coupled cpuidle driver (Jason Wang) - Make rpm_resume() return -EINPROGRESS if RPM_NOWAIT is passed to it in the flags and the device is about to resume (Rafael Wysocki) - Add extra debugging statement for multiple active IRQs to system wakeup handling code (Mario Limonciello) - Replace strlcpy() with unused retval with strscpy() in the core system suspend support code (Wolfram Sang) - Update the intel_rapl power capping driver: - Use standard Energy Unit for SPR Dram RAPL domain (Zhang Rui). - Add support for RAPTORLAKE_S (Zhang Rui). - Fix UBSAN shift-out-of-bounds issue (Chao Qin) - Handle -EPROBE_DEFER when regulator is not probed on mtk-ci-devfreq.c (AngeloGioacchino Del Regno) - Fix message typo and use dev_err_probe() in rockchip-dfi.c (Christophe JAILLET)" * tag 'pm-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (29 commits) cpufreq: qcom-cpufreq-hw: Add cpufreq qos for LMh cpufreq: Add __init annotation to module init funcs cpufreq: tegra194: change tegra239_cpufreq_soc to static PM / devfreq: rockchip-dfi: Fix an error message PM / devfreq: mtk-cci: Handle sram regulator probe deferral powercap: intel_rapl: Use standard Energy Unit for SPR Dram RAPL domain PM: runtime: Return -EINPROGRESS from rpm_resume() in the RPM_NOWAIT case intel_idle: Add AlderLake-N support powercap: intel_rapl: fix UBSAN shift-out-of-bounds issue cpufreq: tegra194: Add support for Tegra239 cpufreq: qcom-cpufreq-hw: Fix uninitialized throttled_freq warning cpufreq: intel_pstate: Add Tigerlake support in no-HWP mode powercap: intel_rapl: Add support for RAPTORLAKE_S cpufreq: amd-pstate: Fix initial highest_perf value cpuidle: Remove redundant check in cpuidle_switch_governor() PM: wakeup: Add extra debugging statement for multiple active IRQs cpufreq: tegra194: Remove the unneeded result variable PM: suspend: move from strlcpy() with unused retval to strscpy() intel_idle: move from strlcpy() with unused retval to strscpy() cpuidle: powernv: move from strlcpy() with unused retval to strscpy() ...
2022-10-03Merge tag 'acpi-6.1-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI updates from Rafael Wysocki: "ACPI and PNP updates for 6.1-rc1. These rearrange the ACPI device object initialization code (to get rid of a redundant parent pointer from struct acpi_device among other things), unify the _UID handling, drop support for some _OSI strings that should not be necessary any more, add new IDs to support more hardware and some more quirks, fix a few issues and clean up code all over. Specifics: - Reimplement acpi_get_pci_dev() using the list of physical devices associated with the given ACPI device object (Rafael Wysocki) - Rename ACPI device object reference counting functions (Rafael Wysocki) - Rearrange ACPI device object initialization code (Rafael Wysocki) - Drop parent field from struct acpi_device (Rafael Wysocki) - Extend the the int3472-tps68470 driver to support multiple consumers of a single TPS68470 along with the requisite framework-level support (Daniel Scally) - Filter out non-memory resources in is_memory(), add a helper function to find all memory type resources of an ACPI device object and use that function in 3 places (Heikki Krogerus) - Add IRQ override quirks for Asus Vivobook K3402ZA/K3502ZA and ASUS model S5402ZA (Tamim Khan, Kellen Renshaw) - Fix acpi_dev_state_d0() kerneldoc (Sakari Ailus) - Fix up suspend-to-idle support on ASUS Rembrandt laptops (Mario Limonciello) - Clean up ACPI platform devices support code (Andy Shevchenko, John Garry) - Clean up ACPI bus management code (Andy Shevchenko, ye xingchen) - Add support for multiple DMA windows with different offsets to the ACPI device enumeration code and use it on LoongArch (Jianmin Lv) - Clean up the ACPI LPSS (Intel SoC) driver (Andy Shevchenko) - Add a quirk for Dell Inspiron 14 2-in-1 for StorageD3Enable (Mario Limonciello) - Drop unused dev_fmt() and redundant 'HMAT' prefix from the HMAT parsing code (Liu Shixin) - Make ACPI FPDT parsing code avoid calling acpi_os_map_memory() on invalid physical addresses (Hans de Goede) - Silence missing-declarations warning related to Apple device properties management (Lukas Wunner) - Disable frequency invariance in the CPPC library if registers used by cppc_get_perf_ctrs() are accessed via PCC (Jeremy Linton) - Add ACPI disabled check to acpi_cpc_valid() (Perry Yuan) - Fix Tx acknowledge in the PCC address space handler (Huisong Li) - Use wait_for_completion_timeout() for PCC mailbox operations (Huisong Li) - Release resources on PCC address space setup failure path (Rafael Mendonca) - Remove unneeded result variables from APEI code (ye xingchen) - Print total number of records found during BERT log parsing (Dmitry Monakhov) - Drop support for 3 _OSI strings that should not be necessary any more and update documentation on custom _OSI strings so that adding new ones is not encouraged any more (Mario Limonciello) - Drop unneeded result variable from ec_write() (ye xingchen) - Remove the leftover struct acpi_ac_bl from the ACPI AC driver (Hanjun Guo) - Reorder symbols to get rid of a few forward declarations in the ACPI fan driver (Uwe Kleine-König) - Add Toshiba Satellite/Portege Z830 ACPI backlight quirk (Arvid Norlander) - Add ARM DMA-330 controller to the supported list in the ACPI AMBA driver (Vijayenthiran Subramaniam) - Drop references to non-functional 01.org/linux-acpi web site from MAINTAINERS and Kconfig help texts (Rafael Wysocki) - Replace strlcpy() with unused retval with strscpy() in the ACPI support code (Wolfram Sang) - Do not initialize ret in main() in the pfrut utility (Shi junming) - Drop useless ACPI DSDT override documentation (Rafael Wysocki) - Fix a few typos and wording mistakes in the ACPI device enumeration documentation (Jean Delvare) - Introduce acpi_dev_uid_to_integer() to convert a _UID string into an integer value (Andy Shevchenko) - Use acpi_dev_uid_to_integer() in several places to unify _UID handling (Andy Shevchenko) - Drop unused pnpid32_to_pnpid() declaration from PNP code (Gaosheng Cui)" * tag 'acpi-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (79 commits) ACPI: LPSS: Deduplicate skipping device in acpi_lpss_create_device() ACPI: LPSS: Replace loop with first entry retrieval ACPI: x86: s2idle: Add another ID to s2idle_dmi_table ACPI: x86: s2idle: Fix a NULL pointer dereference MAINTAINERS: Drop records pointing to 01.org/linux-acpi ACPI: Kconfig: Drop link to https://01.org/linux-acpi ACPI: docs: Drop useless DSDT override documentation ACPI: DPTF: Drop stale link from Kconfig help ACPI: x86: s2idle: Add a quirk for ASUSTeK COMPUTER INC. ROG Flow X13 ACPI: x86: s2idle: Add a quirk for Lenovo Slim 7 Pro 14ARH7 ACPI: x86: s2idle: Add a quirk for ASUS ROG Zephyrus G14 ACPI: x86: s2idle: Add a quirk for ASUS TUF Gaming A17 FA707RE ACPI: x86: s2idle: Add module parameter to prefer Microsoft GUID ACPI: x86: s2idle: If a new AMD _HID is missing assume Rembrandt ACPI: x86: s2idle: Move _HID handling for AMD systems into structures platform/x86: int3472: Add board data for Surface Go2 IR camera platform/x86: int3472: Support multiple gpio lookups in board data platform/x86: int3472: Support multiple clock consumers ACPI: bus: Add iterator for dependent devices ACPI: scan: Add acpi_dev_get_next_consumer_dev() ...
2022-10-03Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextJakub Kicinski
Daniel Borkmann says: ==================== pull-request: bpf-next 2022-10-03 We've added 143 non-merge commits during the last 27 day(s) which contain a total of 151 files changed, 8321 insertions(+), 1402 deletions(-). The main changes are: 1) Add kfuncs for PKCS#7 signature verification from BPF programs, from Roberto Sassu. 2) Add support for struct-based arguments for trampoline based BPF programs, from Yonghong Song. 3) Fix entry IP for kprobe-multi and trampoline probes under IBT enabled, from Jiri Olsa. 4) Batch of improvements to veristat selftest tool in particular to add CSV output, a comparison mode for CSV outputs and filtering, from Andrii Nakryiko. 5) Add preparatory changes needed for the BPF core for upcoming BPF HID support, from Benjamin Tissoires. 6) Support for direct writes to nf_conn's mark field from tc and XDP BPF program types, from Daniel Xu. 7) Initial batch of documentation improvements for BPF insn set spec, from Dave Thaler. 8) Add a new BPF_MAP_TYPE_USER_RINGBUF map which provides single-user-space-producer / single-kernel-consumer semantics for BPF ring buffer, from David Vernet. 9) Follow-up fixes to BPF allocator under RT to always use raw spinlock for the BPF hashtab's bucket lock, from Hou Tao. 10) Allow creating an iterator that loops through only the resources of one task/thread instead of all, from Kui-Feng Lee. 11) Add support for kptrs in the per-CPU arraymap, from Kumar Kartikeya Dwivedi. 12) Add a new kfunc helper for nf to set src/dst NAT IP/port in a newly allocated CT entry which is not yet inserted, from Lorenzo Bianconi. 13) Remove invalid recursion check for struct_ops for TCP congestion control BPF programs, from Martin KaFai Lau. 14) Fix W^X issue with BPF trampoline and BPF dispatcher, from Song Liu. 15) Fix percpu_counter leakage in BPF hashtab allocation error path, from Tetsuo Handa. 16) Various cleanups in BPF selftests to use preferred ASSERT_* macros, from Wang Yufen. 17) Add invocation for cgroup/connect{4,6} BPF programs for ICMP pings, from YiFei Zhu. 18) Lift blinding decision under bpf_jit_harden = 1 to bpf_capable(), from Yauheni Kaliuta. 19) Various libbpf fixes and cleanups including a libbpf NULL pointer deref, from Xin Liu. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (143 commits) net: netfilter: move bpf_ct_set_nat_info kfunc in nf_nat_bpf.c Documentation: bpf: Add implementation notes documentations to table of contents bpf, docs: Delete misformatted table. selftests/xsk: Fix double free bpftool: Fix error message of strerror libbpf: Fix overrun in netlink attribute iteration selftests/bpf: Fix spelling mistake "unpriviledged" -> "unprivileged" samples/bpf: Fix typo in xdp_router_ipv4 sample bpftool: Remove unused struct event_ring_info bpftool: Remove unused struct btf_attach_point bpf, docs: Add TOC and fix formatting. bpf, docs: Add Clang note about BPF_ALU bpf, docs: Move Clang notes to a separate file bpf, docs: Linux byteswap note bpf, docs: Move legacy packet instructions to a separate file selftests/bpf: Check -EBUSY for the recurred bpf_setsockopt(TCP_CONGESTION) bpf: tcp: Stop bpf_setsockopt(TCP_CONGESTION) in init ops to recur itself bpf: Refactor bpf_setsockopt(TCP_CONGESTION) handling into another function bpf: Move the "cdg" tcp-cc check to the common sol_tcp_sockopt() bpf: Add __bpf_prog_{enter,exit}_struct_ops for struct_ops trampoline ... ==================== Link: https://lore.kernel.org/r/20221003194915.11847-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-10-03Merge branch 'thermal-core'Rafael J. Wysocki
Merge core thermal control changes for 6.1-rc1: - Increase maximum number of trip points in the thermal core (Sumeet Pawnikar). - Replace strlcpy() with unused retval with strscpy() in the core thermal control code (Wolfram Sang). - Do not lock thermal zone mutex in the user space governor (Rafael Wysocki) - Rework the device tree initialization, convert the drivers to the new API and remove the old OF code (Daniel Lezcano) - Fix return value to -ENODEV when searching for a specific thermal zone which does not exist (Daniel Lezcano) - Fix the return value inspection in of_thermal_zone_find() (Dan Carpenter) - Fix kernel panic when KASAN is enabled as it detects use after free when unregistering a thermal zone (Daniel Lezcano) - Move the set_trip ops inside the therma sysfs code (Daniel Lezcano) - Remove unnecessary error message as it is already showed in the underlying function (Jiapeng Chong) - Rework the monitoring path and move the locks upper in the call stack to fix some potentials race windows (Daniel Lezcano) - Fix lockdep_assert() warning introduced by the lock rework (Daniel Lezcano) - Revert the Mellanox 'hotter thermal zone' feature because it is already handled in the thermal framework core code (Daniel Lezcano) * thermal-core: (47 commits) thermal: core: Increase maximum number of trip points thermal: move from strlcpy() with unused retval to strscpy() thermal: gov_user_space: Do not lock thermal zone mutex Revert "mlxsw: core: Add the hottest thermal zone detection" thermal/core: Fix lockdep_assert() warning thermal/core: Move the mutex inside the thermal_zone_device_update() function thermal/core: Move the thermal zone lock out of the governors thermal/governors: Group the thermal zone lock inside the throttle function thermal/core: Rework the monitoring a bit thermal/core: Rearm the monitoring only one time thermal/drivers/qcom/spmi-adc-tm5: Remove unnecessary print function dev_err() thermal/of: Remove old OF code thermal/core: Move set_trip_temp ops to the sysfs code thermal/drivers/samsung: Switch to new of thermal API regulator/drivers/max8976: Switch to new of thermal API Input: sun4i-ts - switch to new of thermal API iio/drivers/sun4i_gpadc: Switch to new of thermal API hwmon/drivers/core: Switch to new of thermal API hwmon: pm_bus: core: Switch to new of thermal API ata/drivers/ahci_imx: Switch to new of thermal API ...
2022-10-03mei: bus: extend bus API to support command streamer APIVitaly Lubart
Add mei bus API for sending gsc commands: mei_cldev_send_gsc_command() The GSC commands are originated in the graphics stack and are in form of SGL DMA buffers. The GSC commands are synchronous, the response is received in the same call on the out sg list buffers. The function setups pointers for in and out sg lists in the mei sgl extended header and sends it to the firmware. Signed-off-by: Vitaly Lubart <vitaly.lubart@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220928004145.745803-5-daniele.ceraolospurio@intel.com
2022-10-03Merge branches 'pm-cpuidle', 'pm-core', 'pm-sleep' and 'powercap'Rafael J. Wysocki
Merge cpuidle changes, PM core changes and power capping changes for 6.1-rc1: - Add AlderLake-N support to intel_idle (Zhang Rui). - Replace strlcpy() with unused retval with strscpy() in intel_idle (Wolfram Sang). - Remove redundant check from cpuidle_switch_governor() (Yu Liao). - Replace strlcpy() with unused retval with strscpy() in the powernv cpuidle driver (Wolfram Sang). - Drop duplicate word from a comment in the coupled cpuidle driver (Jason Wang). - Make rpm_resume() return -EINPROGRESS if RPM_NOWAIT is passed to it in the flags and the device is about to resume (Rafael Wysocki). - Add extra debugging statement for multiple active IRQs to system wakeup handling code (Mario Limonciello). - Replace strlcpy() with unused retval with strscpy() in the core system suspend support code (Wolfram Sang). - Update the intel_rapl power capping driver: * Use standard Energy Unit for SPR Dram RAPL domain (Zhang Rui). * Add support for RAPTORLAKE_S (Zhang Rui). * Fix UBSAN shift-out-of-bounds issue (Chao Qin). * pm-cpuidle: intel_idle: Add AlderLake-N support cpuidle: Remove redundant check in cpuidle_switch_governor() intel_idle: move from strlcpy() with unused retval to strscpy() cpuidle: powernv: move from strlcpy() with unused retval to strscpy() cpuidle: coupled: Drop duplicate word from a comment * pm-core: PM: runtime: Return -EINPROGRESS from rpm_resume() in the RPM_NOWAIT case * pm-sleep: PM: wakeup: Add extra debugging statement for multiple active IRQs PM: suspend: move from strlcpy() with unused retval to strscpy() * powercap: powercap: intel_rapl: Use standard Energy Unit for SPR Dram RAPL domain powercap: intel_rapl: fix UBSAN shift-out-of-bounds issue powercap: intel_rapl: Add support for RAPTORLAKE_S
2022-10-03Merge branch 'acpi-uid'Rafael J. Wysocki
Merge ACPI _UID handling unification changes for 6.1-rc1: - Introduce acpi_dev_uid_to_integer() to convert a _UID string into an integer value (Andy Shevchenko). - Use acpi_dev_uid_to_integer() in several places to unify _UID handling (Andy Shevchenko). * acpi-uid: efi/dev-path-parser: Refactor _UID handling to use acpi_dev_uid_to_integer() spi: pxa2xx: Refactor _UID handling to use acpi_dev_uid_to_integer() perf: qcom_l2_pmu: Refactor _UID handling to use acpi_dev_uid_to_integer() i2c: mlxbf: Refactor _UID handling to use acpi_dev_uid_to_integer() i2c: amd-mp2-plat: Refactor _UID handling to use acpi_dev_uid_to_integer() ACPI: x86: Refactor _UID handling to use acpi_dev_uid_to_integer() ACPI: LPSS: Refactor _UID handling to use acpi_dev_uid_to_integer() ACPI: utils: Add acpi_dev_uid_to_integer() helper to get _UID as integer
2022-10-03Merge tag 'rcu.2022.09.30a' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu Pull RCU updates from Paul McKenney: - Documentation updates. This is the first in a series from an ongoing review of the RCU documentation. "Why are people thinking -that- about RCU? Oh. Because that is an entirely reasonable interpretation of its documentation." - Miscellaneous fixes. - Improved memory allocation and heuristics. - Improve rcu_nocbs diagnostic output. - Add full-sized polled RCU grace period state values. These are the same size as an rcu_head structure, which is double that of the traditional unsigned long state values that may still be obtained from et_state_synchronize_rcu(). The added size avoids missing overlapping grace periods. This benefit is that call_rcu() can be replaced by polling, which can be attractive in situations where RCU-protected data is aged out of memory. Early in the series, the size of this state value is three unsigned longs. Later in the series, the fastpaths in synchronize_rcu() and synchronize_rcu_expedited() are reworked to permit the full state to be represented by only two unsigned longs. This reworking slows these two functions down in SMP kernels running either on single-CPU systems or on systems with all but one CPU offlined, but this should not be a significant problem. And if it somehow becomes a problem in some yet-as-unforeseen situations, three-value state values can be provided for only those situations. Finally, a pair of functions named same_state_synchronize_rcu() and same_state_synchronize_rcu_full() allow grace-period state values to be compared for equality. This permits users to maintain lists of data structures having the same state value, removing the need for per-data-structure grace-period state values, thus decreasing memory footprint. - Polled SRCU grace-period updates, including adding tests to rcutorture and reducing the incidence of Tiny SRCU grace-period-state counter wrap. - Improve Tasks RCU diagnostics and quiescent-state detection. * tag 'rcu.2022.09.30a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (55 commits) rcutorture: Use the barrier operation specified by cur_ops rcu-tasks: Make RCU Tasks Trace check for userspace execution rcu-tasks: Ensure RCU Tasks Trace loops have quiescent states rcu-tasks: Convert RCU_LOCKDEP_WARN() to WARN_ONCE() srcu: Make Tiny SRCU use full-sized grace-period counters srcu: Make Tiny SRCU poll_state_synchronize_srcu() more precise srcu: Add GP and maximum requested GP to Tiny SRCU rcutorture output rcutorture: Make "srcud" option also test polled grace-period API rcutorture: Limit read-side polling-API testing rcu: Add functions to compare grace-period state values rcutorture: Expand rcu_torture_write_types() first "if" statement rcutorture: Use 1-suffixed variable in rcu_torture_write_types() check rcu: Make synchronize_rcu() fastpath update only boot-CPU counters rcutorture: Adjust rcu_poll_need_2gp() for rcu_gp_oldstate field removal rcu: Remove ->rgos_polled field from rcu_gp_oldstate structure rcu: Make synchronize_rcu_expedited() fast path update .expedited_sequence rcu: Remove expedited grace-period fast-path forward-progress helper rcu: Make synchronize_rcu() fast path update ->gp_seq counters rcu-tasks: Remove grace-period fast-path rcu-tasks helper rcu: Set rcu_data structures' initial ->gpwrap value to true ...
2022-10-03once: add DO_ONCE_SLOW() for sleepable contextsEric Dumazet
Christophe Leroy reported a ~80ms latency spike happening at first TCP connect() time. This is because __inet_hash_connect() uses get_random_once() to populate a perturbation table which became quite big after commit 4c2c8f03a5ab ("tcp: increase source port perturb table to 2^16") get_random_once() uses DO_ONCE(), which block hard irqs for the duration of the operation. This patch adds DO_ONCE_SLOW() which uses a mutex instead of a spinlock for operations where we prefer to stay in process context. Then __inet_hash_connect() can use get_random_slow_once() to populate its perturbation table. Fixes: 4c2c8f03a5ab ("tcp: increase source port perturb table to 2^16") Fixes: 190cc82489f4 ("tcp: change source port randomizarion at connect() time") Reported-by: Christophe Leroy <christophe.leroy@csgroup.eu> Link: https://lore.kernel.org/netdev/CANn89iLAEYBaoYajy0Y9UmGFff5GPxDUoG-ErVB2jDdRNQ5Tug@mail.gmail.com/T/#t Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Willy Tarreau <w@1wt.eu> Tested-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-10-03net: phy: mdio-i2c: support I2C MDIO protocol for RollBall SFP modulesMarek Behún
Some multigig SFPs from RollBall and Hilink do not expose functional MDIO access to the internal PHY of the SFP via I2C address 0x56 (although there seems to be read-only clause 22 access on this address). Instead these SFPs PHY can be accessed via I2C via the SFP Enhanced Digital Diagnostic Interface - I2C address 0x51. The SFP_PAGE has to be selected to 3 and the password must be filled with 0xff bytes for this PHY communication to work. This extends the mdio-i2c driver to support this protocol by adding a special parameter to mdio_i2c_alloc function via which this RollBall protocol can be selected. Signed-off-by: Marek Behún <kabel@kernel.org> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-10-03net: sfp: create/destroy I2C mdiobus before PHY probe/after PHY releaseMarek Behún
Instead of configuring the I2C mdiobus when SFP driver is probed, create/destroy the mdiobus before the PHY is probed for/after it is released. This way we can tell the mdio-i2c code which protocol to use for each SFP transceiver. Move the code that determines MDIO I2C protocol from sfp_sm_probe_for_phy() to sfp_sm_mod_probe(), where most of the SFP ID parsing is done. Don't allocate I2C bus if no PHY is expected. Signed-off-by: Marek Behún <kabel@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-10-03net: phylink: pass supported host PHY interface modes to phylib for SFP's PHYsMarek Behún
Pass the supported PHY interface types to phylib if the PHY we are connecting is inside a SFP, so that the PHY driver can select an appropriate host configuration mode for their interface according to the host capabilities. For example the Marvell 88X3310 PHY inside RollBall SFP modules defaults to 10gbase-r mode on host's side, and the marvell10g driver currently does not change this setting. But a host may not support 10gbase-r. For example Turris Omnia only supports sgmii, 1000base-x and 2500base-x modes. The PHY can be configured to use those modes, but in order for the PHY driver to do that, it needs to know which modes are supported. Signed-off-by: Marek Behún <kabel@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-10-03net: sfp: augment SFP parsing with phy_interface_t bitmapRussell King
We currently parse the SFP EEPROM to a bitmap of ethtool link modes, and then attempt to convert the link modes to a PHY interface mode. While this works at present, there are cases where this is sub-optimal. For example, where a module can operate with several different PHY interface modes. To start addressing this, arrange for the SFP EEPROM parsing to also provide a bitmap of the possible PHY interface modes. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Marek Behún <kabel@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-10-01cpumask: fix checking valid cpu rangeYury Norov
The range of valid CPUs is [0, nr_cpu_ids). Some cpumask functions are passed with a shifted CPU index, and for them, the valid range is [-1, nr_cpu_ids-1). Currently for those functions, we check the index against [-1, nr_cpu_ids), which is wrong. Signed-off-by: Yury Norov <yury.norov@gmail.com>
2022-10-01lib/find: optimize for_each() macrosYury Norov
Moving an iterator of the macros inside conditional part of for-loop helps to generate a better code. It had been first implemented in commit 7baac8b91f9871ba ("cpumask: make for_each_cpu_mask a bit smaller"). Now that cpumask for-loops are the aliases to bitmap loops, it's worth to optimize them the same way. Bloat-o-meter says: add/remove: 8/12 grow/shrink: 147/592 up/down: 4876/-24416 (-19540) Signed-off-by: Yury Norov <yury.norov@gmail.com>
2022-10-01lib/bitmap: introduce for_each_set_bit_wrap() macroYury Norov
Add for_each_set_bit_wrap() macro and use it in for_each_cpu_wrap(). The new macro is based on __for_each_wrap() iterator, which is simpler and smaller than cpumask_next_wrap(). Signed-off-by: Yury Norov <yury.norov@gmail.com>
2022-10-01lib/find_bit: add find_next{,_and}_bit_wrapYury Norov
The helper is better optimized for the worst case: in case of empty cpumask, current code traverses 2 * size: next = cpumask_next_and(prev, src1p, src2p); if (next >= nr_cpu_ids) next = cpumask_first_and(src1p, src2p); At bitmap level we can stop earlier after checking 'size + offset' bits. Signed-off-by: Yury Norov <yury.norov@gmail.com>
2022-10-01cpumask: switch for_each_cpu{,_not} to use for_each_bit()Yury Norov
The difference between for_each_cpu() and for_each_set_bit() is that the latter uses cpumask_next() instead of find_next_bit(), and so calls cpumask_check(). This check is useless because the iterator value is not provided by user. It generates false-positives for the very last iteration of for_each_cpu(). Signed-off-by: Yury Norov <yury.norov@gmail.com>
2022-10-01net: fix cpu_max_bits_warn() usage in netif_attrmask_next{,_and}Yury Norov
The functions require to be passed with a cpu index prior to one that is the first to start search, so the valid input range is [-1, nr_cpu_ids-1). However, the code checks against [-1, nr_cpu_ids). Acked-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Yury Norov <yury.norov@gmail.com>
2022-09-30clkdev: Remove never used devm_clk_release_clkdev()Andy Shevchenko
For the entire history of the devm_clk_release_clkdev() existence (since 2018) it was never used. Remove it for good. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220623115719.52683-2-andriy.shevchenko@linux.intel.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2022-09-30clk: Remove never used devm_of_clk_del_provider()Andy Shevchenko
For the entire history of the devm_of_clk_del_provider) existence (since 2017) it was never used. Remove it for good. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220623115719.52683-1-andriy.shevchenko@linux.intel.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2022-09-30of: base: make of_device_compatible_match() accept const device nodeDmitry Torokhov
of_device_is_compatible() accepts const device node pointer, there is no reason why of_device_compatible_match() can't do the same. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Link: https://lore.kernel.org/r/YzY5MaU5N4A2st5R@google.com Signed-off-by: Rob Herring <robh@kernel.org>
2022-09-30Merge branches 'acpi-scan', 'acpi-bus' and 'acpi-platform'Rafael J. Wysocki
Merge changes related to ACPI device enumeration and ACPI support for platform devices for 6.1-rc1: - Clean up ACPI platform devices support code (Andy Shevchenko, John Garry). - Clean up ACPI bus management code (Andy Shevchenko, ye xingchen). - Add support for multiple DMA windows with different offsets to the ACPI device enumeration code and use it on LoongArch (Jianmin Lv). * acpi-scan: LoongArch: Use acpi_arch_dma_setup() and remove ARCH_HAS_PHYS_TO_DMA ACPI: scan: Support multiple DMA windows with different offsets * acpi-bus: ACPI: bus: Refactor ACPI matching functions for better readability ACPI: bus: Drop kernel doc annotation from acpi_bus_notify() ACPI: bus: Remove the unneeded result variable * acpi-platform: ACPI: platform: Use PLATFORM_DEVID_NONE in acpi_create_platform_device() ACPI: platform: Sort forbidden_id_list[] in ascending order ACPI: platform: Use sizeof(*pointer) instead of sizeof(type) ACPI: platform: Remove redundant print on -ENOMEM ACPI: platform: Get rid of redundant 'else'
2022-09-30Merge branches 'acpi-resource' and 'acpi-pm'Rafael J. Wysocki
Merge ACPI resource management and ACPI power management chages for 6.1-rc1: - Filter out non-memory resources in is_memory(), add a helper function to find all memory type resources of an ACPI device object and use that function in 3 places (Heikki Krogerus). - Add IRQ override quirks for Asus Vivobook K3402ZA/K3502ZA and ASUS model S5402ZA (Tamim Khan, Kellen Renshaw). - Fix acpi_dev_state_d0() kerneldoc (Sakari Ailus). - Fix up suspend-to-idle support on ASUS Rembrandt laptops (Mario Limonciello). * acpi-resource: ACPI: resource: Add ASUS model S5402ZA to quirks usb: typec: intel_pmc_mux: Use the helper acpi_dev_get_memory_resources() ACPI: resource: Skip IRQ override on Asus Vivobook K3402ZA/K3502ZA ACPI: LPSS: Use the helper acpi_dev_get_memory_resources() ACPI: APD: Use the helper acpi_dev_get_memory_resources() ACPI: resource: Add helper function acpi_dev_get_memory_resources() ACPI: resource: Filter out the non memory resources in is_memory() * acpi-pm: ACPI: x86: s2idle: Add another ID to s2idle_dmi_table ACPI: x86: s2idle: Fix a NULL pointer dereference ACPI: x86: s2idle: Add a quirk for ASUSTeK COMPUTER INC. ROG Flow X13 ACPI: x86: s2idle: Add a quirk for Lenovo Slim 7 Pro 14ARH7 ACPI: x86: s2idle: Add a quirk for ASUS ROG Zephyrus G14 ACPI: x86: s2idle: Add a quirk for ASUS TUF Gaming A17 FA707RE ACPI: x86: s2idle: Add module parameter to prefer Microsoft GUID ACPI: x86: s2idle: If a new AMD _HID is missing assume Rembrandt ACPI: x86: s2idle: Move _HID handling for AMD systems into structures ACPI: PM: Fix acpi_dev_state_d0() kerneldoc
2022-09-30Merge branch 'acpi-dev'Rafael J. Wysocki
Merge changes regarding the management of ACPI device objects for 6.1-rc1: - Rename ACPI device object reference counting functions (Rafael Wysocki). - Rearrange ACPI device object initialization code (Rafael Wysocki). - Drop parent field from struct acpi_device (Rafael Wysocki). - Extend the the int3472-tps68470 driver to support multiple consumers of a single TPS68470 along with the requisite framework-level support (Daniel Scally). * acpi-dev: platform/x86: int3472: Add board data for Surface Go2 IR camera platform/x86: int3472: Support multiple gpio lookups in board data platform/x86: int3472: Support multiple clock consumers ACPI: bus: Add iterator for dependent devices ACPI: scan: Add acpi_dev_get_next_consumer_dev() ACPI: property: Use acpi_dev_parent() ACPI: Drop redundant acpi_dev_parent() header ACPI: PM: Fix NULL argument handling in acpi_device_get/set_power() ACPI: Drop parent field from struct acpi_device ACPI: scan: Eliminate __acpi_device_add() ACPI: scan: Rearrange initialization of ACPI device objects ACPI: scan: Rename acpi_bus_get_parent() and rearrange it ACPI: Rename acpi_bus_get/put_acpi_device()
2022-09-30thermal: core: Increase maximum number of trip pointsSumeet Pawnikar
On one of the Chrome system, if we define more than 12 trip points, probe for thermal sensor fails with "int3403 thermal: probe of INTC1046:03 failed with error -22" and throws an error as "thermal_sys: Error: Incorrect number of thermal trips". The thermal_zone_device_register() interface needs maximum number of trip points supported in a zone as an argument. This number can't exceed THERMAL_MAX_TRIPS, which is currently set to 12. To address this issue, THERMAL_MAX_TRIPS value has to be increased. This interface also has an argument to specify a mask of trips which are writable. This mask is defined as an int. This mask sets the ceiling for increasing maximum number of supported trips. With the current implementation, maximum number of trips can be supported is 31. Also, THERMAL_MAX_TRIPS macro is used in one place only. So, remove THERMAL_MAX_TRIPS macro and compare num_trips directly with using a macro BITS_PER_TYPE(int)-1. Signed-off-by: Sumeet Pawnikar <sumeet.r.pawnikar@intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-09-30Merge tag 'wireless-next-2022-09-30' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Kalle Valo says: ==================== wireless-next patches for v6.1 Few stack changes and lots of driver changes in this round. brcmfmac has more activity as usual and it gets new hardware support. ath11k improves WCN6750 support and also other smaller features. And of course changes all over. Note: in early September wireless tree was merged to wireless-next to avoid some conflicts with mac80211 patches, this shouldn't cause any problems but wanted to mention anyway. Major changes: mac80211 - refactoring and preparation for Wi-Fi 7 Multi-Link Operation (MLO) feature continues brcmfmac - support CYW43439 SDIO chipset - support BCM4378 on Apple platforms - support CYW89459 PCIe chipset rtw89 - more work to get rtw8852c supported - P2P support - support for enabling and disabling MSDU aggregation via nl80211 mt76 - tx status reporting improvements ath11k - cold boot calibration support on WCN6750 - Target Wake Time (TWT) debugfs support for STA interface - support to connect to a non-transmit MBSSID AP profile - enable remain-on-channel support on WCN6750 - implement SRAM dump debugfs interface - enable threaded NAPI on all hardware - WoW support for WCN6750 - support to provide transmit power from firmware via nl80211 - support to get power save duration for each client - spectral scan support for 160 MHz wcn36xx - add SNR from a received frame as a source of system entropy * tag 'wireless-next-2022-09-30' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (231 commits) wifi: rtl8xxxu: Improve rtl8xxxu_queue_select wifi: rtl8xxxu: Fix AIFS written to REG_EDCA_*_PARAM wifi: rtl8xxxu: gen2: Enable 40 MHz channel width wifi: rtw89: 8852b: configure DLE mem wifi: rtw89: check DLE FIFO size with reserved size wifi: rtw89: mac: correct register of report IMR wifi: rtw89: pci: set power cut closed for 8852be wifi: rtw89: pci: add to do PCI auto calibration wifi: rtw89: 8852b: implement chip_ops::{enable,disable}_bb_rf wifi: rtw89: add DMA busy checking bits to chip info wifi: rtw89: mac: define DMA channel mask to avoid unsupported channels wifi: rtw89: pci: mask out unsupported TX channels iwlegacy: Replace zero-length arrays with DECLARE_FLEX_ARRAY() helper ipw2x00: Replace zero-length array with DECLARE_FLEX_ARRAY() helper wifi: iwlwifi: Track scan_cmd allocation size explicitly brcmfmac: Remove the call to "dtim_assoc" IOVAR brcmfmac: increase dcmd maximum buffer size brcmfmac: Support 89459 pcie brcmfmac: increase default max WOWL patterns to 16 cw1200: fix incorrect check to determine if no element is found in list ... ==================== Link: https://lore.kernel.org/r/20220930150413.A7984C433D6@smtp.kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-30net/mlx5e: xsk: Use KSM for unaligned XSKMaxim Mikityanskiy
UMR MTTs used in striding RQ have certain alignment requirements. While it's guaranteed to work when UMR pages are aligned to the UMR page size, in practice it works then UMR pages are aligned to 8 bytes. However, it's still not enough flexibility for the unaligned mode of XSK. This patch leverages KSM to map UMR pages without alignment requirements, when unaligned XSK is active. The downside is that KSM entries are twice as big as MTTs, which limits the maximum WQE size, so regular RQs and aligned XSK continue using MTTs. Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com> Reviewed-by: Tariq Toukan <tariqt@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-30net/mlx5e: Use runtime page_shift for striding RQMaxim Mikityanskiy
This commit allows striding RQ to determine MTT page size at runtime, instead of sticking to the compile-time PAGE_SIZE. This functionality will be used by a following commit that adjusts the MTT page size to the XSK frame size. Stick with PAGE_SIZE for XSK on legacy RQ, as frag_stride is not used in data path, it only helps calculate how pages are partitioned into fragments, and PAGE_SIZE will ensure each fragment starts at the beginning of a new allocation unit (XSK frame). Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com> Reviewed-by: Tariq Toukan <tariqt@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-30block: add blk_rq_map_user_ioAnuj Gupta
Create a helper blk_rq_map_user_io for mapping of vectored as well as non-vectored requests. This will help in saving dupilcation of code at few places in scsi and nvme. Signed-off-by: Anuj Gupta <anuj20.g@samsung.com> Suggested-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20220930062749.152261-4-anuj20.g@samsung.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-30io_uring: introduce fixed buffer support for io_uring_cmdAnuj Gupta
Add IORING_URING_CMD_FIXED flag that is to be used for sending io_uring command with previously registered buffers. User-space passes the buffer index in sqe->buf_index, same as done in read/write variants that uses fixed buffers. Signed-off-by: Anuj Gupta <anuj20.g@samsung.com> Signed-off-by: Kanchan Joshi <joshi.k@samsung.com> Link: https://lore.kernel.org/r/20220930062749.152261-3-anuj20.g@samsung.com [axboe: shuffle valid flags check before acting on it] Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-30io_uring: add io_uring_cmd_import_fixedAnuj Gupta
This is a new helper that callers can use to obtain a bvec iterator for the previously mapped buffer. This is preparatory work to enable fixed-buffer support for io_uring_cmd. Signed-off-by: Anuj Gupta <anuj20.g@samsung.com> Signed-off-by: Kanchan Joshi <joshi.k@samsung.com> Link: https://lore.kernel.org/r/20220930062749.152261-2-anuj20.g@samsung.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-30block: allow end_io based requests in the completion batch handlingJens Axboe
With end_io handlers now being able to potentially pass ownership of the request upon completion, we can allow requests with end_io handlers in the batch completion handling. Reviewed-by: Anuj Gupta <anuj20.g@samsung.com> Reviewed-by: Keith Busch <kbusch@kernel.org> Co-developed-by: Stefan Roesch <shr@fb.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-30block: change request end_io handler to pass back a return valueJens Axboe
Everything is just converted to returning RQ_END_IO_NONE, and there should be no functional changes with this patch. In preparation for allowing the end_io handler to pass ownership back to the block layer, rather than retain ownership of the request. Reviewed-by: Keith Busch <kbusch@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-30Merge branch 'for-6.1/io_uring' into for-6.1/passthroughJens Axboe
* for-6.1/io_uring: (56 commits) io_uring/net: fix notif cqe reordering io_uring/net: don't update msg_name if not provided io_uring: don't gate task_work run on TIF_NOTIFY_SIGNAL io_uring/rw: defer fsnotify calls to task context io_uring/net: fix fast_iov assignment in io_setup_async_msg() io_uring/net: fix non-zc send with address io_uring/net: don't skip notifs for failed requests io_uring/rw: don't lose short results on io_setup_async_rw() io_uring/rw: fix unexpected link breakage io_uring/net: fix cleanup double free free_iov init io_uring: fix CQE reordering io_uring/net: fix UAF in io_sendrecv_fail() selftest/net: adjust io_uring sendzc notif handling io_uring: ensure local task_work marks task as running io_uring/net: zerocopy sendmsg io_uring/net: combine fail handlers io_uring/net: rename io_sendzc() io_uring/net: support non-zerocopy sendto io_uring/net: refactor io_setup_async_addr io_uring/net: don't lose partial send_zc on fail ...
2022-09-30Merge branch 'for-6.1/block' into for-6.1/passthroughJens Axboe
* for-6.1/block: (162 commits) sbitmap: fix lockup while swapping block: add rationale for not using blk_mq_plug() when applicable block: adapt blk_mq_plug() to not plug for writes that require a zone lock s390/dasd: use blk_mq_alloc_disk blk-cgroup: don't update the blkg lookup hint in blkg_conf_prep nvmet: don't look at the request_queue in nvmet_bdev_set_limits nvmet: don't look at the request_queue in nvmet_bdev_zone_mgmt_emulate_all blk-mq: use quiesced elevator switch when reinitializing queues block: replace blk_queue_nowait with bdev_nowait nvme: remove nvme_ctrl_init_connect_q nvme-loop: use the tagset alloc/free helpers nvme-loop: store the generic nvme_ctrl in set->driver_data nvme-loop: initialize sqsize later nvme-fc: use the tagset alloc/free helpers nvme-fc: store the generic nvme_ctrl in set->driver_data nvme-fc: keep ctrl->sqsize in sync with opts->queue_size nvme-rdma: use the tagset alloc/free helpers nvme-rdma: store the generic nvme_ctrl in set->driver_data nvme-tcp: use the tagset alloc/free helpers nvme-tcp: store the generic nvme_ctrl in set->driver_data ... Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-30counter: Introduce the COUNTER_COMP_ARRAY component typeWilliam Breathitt Gray
The COUNTER_COMP_ARRAY Counter component type is introduced to enable support for Counter array components. With Counter array components, exposure for buffers on counter devices can be defined via new Counter array component macros. This should simplify code for driver authors who would otherwise need to define individual Counter components for each array element. Eight Counter array component macros are introduced:: DEFINE_COUNTER_ARRAY_U64(_name, _length) DEFINE_COUNTER_ARRAY_CAPTURE(_name, _length) DEFINE_COUNTER_ARRAY_POLARITY(_name, _enums, _length) COUNTER_COMP_DEVICE_ARRAY_U64(_name, _read, _write, _array) COUNTER_COMP_COUNT_ARRAY_U64(_name, _read, _write, _array) COUNTER_COMP_SIGNAL_ARRAY_U64(_name, _read, _write, _array) COUNTER_COMP_ARRAY_CAPTURE(_read, _write, _array) COUNTER_COMP_ARRAY_POLARITY(_read, _write, _array) Eight Counter array callbacks are introduced as well:: int (*signal_array_u32_read)(struct counter_device *counter, struct counter_signal *signal, size_t idx, u32 *val); int (*signal_array_u32_write)(struct counter_device *counter, struct counter_signal *signal, size_t idx, u32 val); int (*device_array_u64_read)(struct counter_device *counter, size_t idx, u64 *val); int (*count_array_u64_read)(struct counter_device *counter, struct counter_count *count, size_t idx, u64 *val); int (*signal_array_u64_read)(struct counter_device *counter, struct counter_signal *signal, size_t idx, u64 *val); int (*device_array_u64_write)(struct counter_device *counter, size_t idx, u64 val); int (*count_array_u64_write)(struct counter_device *counter, struct counter_count *count, size_t idx, u64 val); int (*signal_array_u64_write)(struct counter_device *counter, struct counter_signal *signal, size_t idx, u64 val); Driver authors can handle reads/writes for an array component by receiving an element index via the `idx` parameter and processing the respective value via the `val` parameter. For example, suppose a driver wants to expose a Count's read-only capture buffer of four elements using a callback `foobar_capture_read()`:: DEFINE_COUNTER_ARRAY_CAPTURE(foobar_capture_array, 4); COUNTER_COMP_ARRAY_CAPTURE(foobar_capture_read, NULL, foobar_capture_array) Respective sysfs attributes for each array element would appear for the respective Count: * /sys/bus/counter/devices/counterX/countY/capture0 * /sys/bus/counter/devices/counterX/countY/capture1 * /sys/bus/counter/devices/counterX/countY/capture2 * /sys/bus/counter/devices/counterX/countY/capture3 If a user tries to read _capture2_ for example, `idx` will be `2` when passed to the `foobar_capture_read()` callback, and thus the driver knows which array element to handle. Counter arrays for polarity elements can be defined in a similar manner as u64 elements:: const enum counter_signal_polarity foobar_polarity_states[] = { COUNTER_SIGNAL_POLARITY_POSITIVE, COUNTER_SIGNAL_POLARITY_NEGATIVE, }; DEFINE_COUNTER_ARRAY_POLARITY(foobar_polarity_array, foobar_polarity_states, 4); COUNTER_COMP_ARRAY_POLARITY(foobar_polarity_read, foobar_polarity_write, foobar_polarity_array) Tested-by: Julien Panis <jpanis@baylibre.com> Link: https://lore.kernel.org/r/5310c22520aeae65b1b74952419f49ac4c8e1ec1.1664204990.git.william.gray@linaro.org/ Signed-off-by: William Breathitt Gray <william.gray@linaro.org> Link: https://lore.kernel.org/r/a51fd608704bdfc5a0efa503fc5481df34241e0a.1664318353.git.william.gray@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-09-30counter: Introduce the Count capture componentWilliam Breathitt Gray
Some devices provide a latch function to save historic Count values. This patch standardizes exposure of such functionality as Count capture components. A COUNTER_COMP_CAPTURE macro is provided for driver authors to define a capture component. A new event COUNTER_EVENT_CAPTURE is introduced to represent Count value capture events. Cc: Julien Panis <jpanis@baylibre.com> Link: https://lore.kernel.org/r/c239572ab4208d0d6728136e82a88ad464369a7a.1664204990.git.william.gray@linaro.org/ Signed-off-by: William Breathitt Gray <william.gray@linaro.org> Link: https://lore.kernel.org/r/3cebaa0b807a225eb277d771504fe6dba7269ffd.1664318353.git.william.gray@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-09-30counter: Introduce the Signal polarity componentWilliam Breathitt Gray
The Signal polarity component represents the active level of a respective Signal. There are two possible states: positive (rising edge) and negative (falling edge); enum counter_signal_polarity represents these states. A convenience macro COUNTER_COMP_POLARITY() is provided for driver authors to declare a Signal polarity component. Cc: Julien Panis <jpanis@baylibre.com> Link: https://lore.kernel.org/r/8f47d6e1db71a11bb1e2666f8e2a6e9d256d4131.1664204990.git.william.gray@linaro.org/ Signed-off-by: William Breathitt Gray <william.gray@linaro.org> Link: https://lore.kernel.org/r/b6e53438badcb6318997d13dd2fc052f97d808ac.1664318353.git.william.gray@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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