- 06 May, 2022 4 commits
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Prarit Bhargava authored
'rmmod pmt_telemetry' panics with: BUG: kernel NULL pointer dereference, address: 0000000000000040 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 4 PID: 1697 Comm: rmmod Tainted: G S W -------- --- 5.18.0-rc4 #3 Hardware name: Intel Corporation Alder Lake Client Platform/AlderLake-P DDR5 RVP, BIOS ADLPFWI1.R00.3056.B00.2201310233 01/31/2022 RIP: 0010:device_del+0x1b/0x3d0 Code: e8 1a d9 e9 ff e9 58 ff ff ff 48 8b 08 eb dc 0f 1f 44 00 00 41 56 41 55 41 54 55 48 8d af 80 00 00 00 53 48 89 fb 48 83 ec 18 <4c> 8b 67 40 48 89 ef 65 48 8b 04 25 28 00 00 00 48 89 44 24 10 31 RSP: 0018:ffffb520415cfd60 EFLAGS: 00010286 RAX: 0000000000000070 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000080 R08: ffffffffffffffff R09: ffffb520415cfd78 R10: 0000000000000002 R11: ffffb520415cfd78 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f7e198e5740(0000) GS:ffff905c9f700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000040 CR3: 000000010782a005 CR4: 0000000000770ee0 PKRU: 55555554 Call Trace: <TASK> ? __xa_erase+0x53/0xb0 device_unregister+0x13/0x50 intel_pmt_dev_destroy+0x34/0x60 [pmt_class] pmt_telem_remove+0x40/0x50 [pmt_telemetry] auxiliary_bus_remove+0x18/0x30 device_release_driver_internal+0xc1/0x150 driver_detach+0x44/0x90 bus_remove_driver+0x74/0xd0 auxiliary_driver_unregister+0x12/0x20 pmt_telem_exit+0xc/0xe4a [pmt_telemetry] __x64_sys_delete_module+0x13a/0x250 ? syscall_trace_enter.isra.19+0x11e/0x1a0 do_syscall_64+0x58/0x80 ? syscall_exit_to_user_mode+0x12/0x30 ? do_syscall_64+0x67/0x80 ? syscall_exit_to_user_mode+0x12/0x30 ? do_syscall_64+0x67/0x80 ? syscall_exit_to_user_mode+0x12/0x30 ? do_syscall_64+0x67/0x80 ? exc_page_fault+0x64/0x140 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f7e1803a05b Code: 73 01 c3 48 8b 0d 2d 4e 38 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 b0 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 4d 38 00 f7 d8 64 89 01 48 The probe function, pmt_telem_probe(), adds an entry for devices even if they have not been initialized. This results in the array of initialized devices containing both initialized and uninitialized entries. This causes a panic in the remove function, pmt_telem_remove() which expects the array to only contain initialized entries. Only use an entry when a device is initialized. Cc: "David E. Box" <david.e.box@linux.intel.com> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Mark Gross <markgross@kernel.org> Cc: platform-driver-x86@vger.kernel.org Signed-off-by:
David Arcari <darcari@redhat.com> Signed-off-by:
Prarit Bhargava <prarit@redhat.com> Reviewed-by:
David E. Box <david.e.box@linux.intel.com> Link: https://lore.kernel.org/r/20220429122322.2550003-1-prarit@redhat.comReviewed-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
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Mark Pearson authored
There was an issue with the dual fan probe whereby the probe was failing as it assuming that second_fan support was not available. Corrected the logic so the probe works correctly. Cleaned up so quirks only used if 2nd fan not detected. Tested on X1 Carbon 10 (2 fans), X1 Carbon 9 (2 fans) and T490 (1 fan) Signed-off-by:
Mark Pearson <markpearson@lenovo.com> Link: https://lore.kernel.org/r/20220502191200.63470-1-markpearson@lenovo.comReviewed-by:
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Mario Limonciello authored
Lenovo laptops that contain NVME SSDs across a variety of generations have trouble resuming from suspend to idle when the IOMMU translation layer is active for the NVME storage device. This generally manifests as a large resume delay or page faults. These delays and page faults occur as a result of a Lenovo BIOS specific SMI that runs during the D3->D0 transition on NVME devices. This SMI occurs because of a flag that is set during resume by Lenovo firmware: ``` OperationRegion (PM80, SystemMemory, 0xFED80380, 0x10) Field (PM80, AnyAcc, NoLock, Preserve) { SI3R, 1 } Method (_ON, 0, NotSerialized) // _ON_: Power On { TPST (0x60D0) If ((DAS3 == 0x00)) { If (SI3R) { TPST (0x60E0) M020 (NBRI, 0x00, 0x00, 0x04, (NCMD | 0x06)) M020 (NBRI, 0x00, 0x00, 0x10, NBAR) APMC = HDSI /* \HDSI */ SLPS = 0x01 SI3R = 0x00 TPST (0x60E1) } D0NV = 0x01 } } ``` Create a quirk that will run early in the resume process to prevent this SMI from running. As any of these machines are fixed, they can be peeled back from this quirk or narrowed down to individual firmware versions. Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1910 Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1689Signed-off-by:Mario Limonciello <mario.limonciello@amd.com> Tested-by:
Mark Pearson <markpearson@lenvo.com> Link: https://lore.kernel.org/r/20220429030501.1909-3-mario.limonciello@amd.comReviewed-by:
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Mario Limonciello authored
DMI matching in thinkpad_acpi happens local to a function meaning quirks can only match that function. Future changes to thinkpad_acpi may need to quirk other code, so change this to use a quirk infrastructure. Signed-off-by:
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- 27 Apr, 2022 14 commits
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Suma Hegde authored
HSMP protocol version 5 is supported on AMD family 19h model 10h EPYC processors. This version brings new features such as -- DIMM statistics -- Bandwidth for IO and xGMI links -- Monitor socket and core frequency limits -- Configure power efficiency modes, DF pstate range etc Signed-off-by:
Suma Hegde <suma.hegde@amd.com> Reviewed-by:
Carlos Bilbao <carlos.bilbao@amd.com> Signed-off-by:
Naveen Krishna Chatradhi <nchatrad@amd.com> Link: https://lore.kernel.org/r/20220427152248.25643-1-nchatrad@amd.comReviewed-by:
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Juergen Gross authored
The dcdbas driver is used to call SMI handlers for both, dcdbas and dell-smbios-smm. Both drivers allocate a buffer for communicating with the SMI handler. The physical buffer address is then passed to the called SMI handler via %ebx. Unfortunately this doesn't work when running in Xen dom0, as the physical address obtained via virt_to_phys() is only a guest physical address, and not a machine physical address as needed by SMI. The problem in dcdbas is easy to correct, as dcdbas is using dma_alloc_coherent() for allocating the buffer, and the machine physical address is available via the DMA address returned in the DMA handle. In order to avoid duplicating the buffer allocation code in dell-smbios-smm, add a generic buffer allocation function to dcdbas and use it for both drivers. This is especially fine regarding driver dependencies, as dell-smbios-smm is already calling dcdbas to generate the SMI request. Signed-off-by:
Juergen Gross <jgross@suse.com> Link: https://lore.kernel.org/r/20220318150950.16843-1-jgross@suse.comReviewed-by:
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Minghao Chi authored
Use kobj_to_dev() instead of open-coding it. Reported-by:
Zeal Robot <zealci@zte.com.cn> Signed-off-by:
Minghao Chi <chi.minghao@zte.com.cn> Link: https://lore.kernel.org/r/20220425105446.3515663-1-chi.minghao@zte.com.cnSigned-off-by:
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Minghao Chi authored
Use kobj_to_dev() instead of open-coding it. Reported-by:
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Tom Rix authored
Sparse reports this issue core.c: note: in included file: core.h:239:12: warning: symbol 'pmc_lpm_modes' was not declared. Should it be static? Global variables should not be defined in headers. This only works because core.h is only included by core.c. Single file use variables should be static, so change its storage-class specifier to static. Signed-off-by:
Tom Rix <trix@redhat.com> Reviewed-by:
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David E. Box authored
Fix bug that added an offset to the mailbox addr during multi-packet reads. Did not affect current ABI since it doesn't support multi-packet transactions. Fixes: 2546c600 ("platform/x86: Add Intel Software Defined Silicon driver") Signed-off-by:
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David E. Box authored
Due to change in firmware flow, update mailbox writes to poll on ready bit instead of run_busy bit. This change makes the polling method consistent for both writes and reads, which also uses the ready bit. Fixes: 2546c600 ("platform/x86: Add Intel Software Defined Silicon driver") Signed-off-by:
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David E. Box authored
To prevent an agent from indefinitely holding the mailbox firmware has implemented a leaky bucket algorithm. Repeated access to the mailbox may now incur a delay of up to 2.1 seconds. Add a retry loop that tries for up to 2.5 seconds to acquire the mailbox. Fixes: 2546c600 ("platform/x86: Add Intel Software Defined Silicon driver") Signed-off-by:
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Srinivas Pandruvada authored
Loading this driver in guests results in unchecked MSR access error for MSR 0x620. There is no use of reading and modifying package/die scope uncore MSRs in guests. So check for CPU feature X86_FEATURE_HYPERVISOR to prevent loading of this driver in guests. Fixes: dbce412a ("platform/x86/intel-uncore-freq: Split common and enumeration part") Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=215870Suggested-by:
Borislav Petkov <bp@suse.de> Signed-off-by:
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Link: https://lore.kernel.org/r/20220427100304.2562990-1-srinivas.pandruvada@linux.intel.comSigned-off-by:
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Darryn Anton Jordan authored
This works on my system. Signed-off-by:
Darryn Anton Jordan <darrynjordan@icloud.com> Acked-by:
Thomas Weißschuh <thomas@weissschuh.net> Link: https://lore.kernel.org/r/Ylguq87YG+9L3foV@harkSigned-off-by:
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Gabriele Mazzotta authored
The Latitude 7520 supports AC timeouts, but it has no KBD_LED_AC_TOKEN and so changes to stop_timeout appear to have no effect if the laptop is plugged in. Signed-off-by:
Gabriele Mazzotta <gabriele.mzt@gmail.com> Acked-by:
Pali Rohár <pali@kernel.org> Link: https://lore.kernel.org/r/20220426120827.12363-1-gabriele.mzt@gmail.comSigned-off-by:
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Hans de Goede authored
Before this commit fan_curve_check_present() was trying to not cause the probe to fail on devices without fan curve control by testing for known error codes returned by asus_wmi_evaluate_method_buf(). Checking for ENODATA or ENODEV, with the latter being returned by this function when an ACPI integer with a value of ASUS_WMI_UNSUPPORTED_METHOD is returned. But for other ACPI integer returns this function just returns them as is, including the ASUS_WMI_DSTS_UNKNOWN_BIT value of 2. On the Asus U36SD ASUS_WMI_DSTS_UNKNOWN_BIT gets returned, leading to: asus-nb-wmi: probe of asus-nb-wmi failed with error 2 Instead of playing whack a mole with error codes here, simply treat all errors as there not being any fan curves, fixing the driver no longer loading on the Asus U36SD laptop. Fixes: e3d13da7 ("platform/x86: asus-wmi: Fix regression when probing for fan curve control") BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=2079125 Cc: Luke D. Jones <luke@ljones.dev> Signed-off-by:
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Dan Carpenter authored
This code tests for if the obj->buffer.length is larger than the buffer but then it just does the memcpy() anyway. Fixes: 0f0ac158 ("platform/x86: asus-wmi: Add support for custom fan curves") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20220413073744.GB8812@kiliReviewed-by:
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Nathan Chancellor authored
When CONFIG_DEBUG_FS is disabled, amd_pmc_get_smu_version() is unused: drivers/platform/x86/amd-pmc.c:196:12: warning: unused function 'amd_pmc_get_smu_version' [-Wunused-function] static int amd_pmc_get_smu_version(struct amd_pmc_dev *dev) ^ 1 warning generated. Eliminate the warning by moving amd_pmc_get_smu_version() to the CONFIG_DEBUG_FS block where it is used. Fixes: b0c07116 ("platform/x86: amd-pmc: Avoid reading SMU version at probe time") Signed-off-by:Nathan Chancellor <nathan@kernel.org> Reviewed-by:
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- 13 Apr, 2022 7 commits
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Mario Limonciello authored
Currently the SMU version only used to determine whether the SMU supports reading the idle mask. To speed up startup, move it to the first time the idle mask is read. This decreases the startup time from ~28500us to 100us. Reviewed-by:
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Mario Limonciello authored
FCH address is accessed only when looking at s0ix stats. As this is unnecessary for initialization, move it ito the first time stats are accessed from sysfs. This descrease startup time by about 200us. Reviewed-by:
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Mario Limonciello authored
SMU logging is setup when the device is probed currently. In analyzing boot performance it was observed that amd_pmc_probe is taking ~116800us on startup on an OEM platform. This is longer than expected, and is caused by enabling SMU logging at startup. As the SMU logging is only needed for debugging, initialize it only upon use. This decreases the time for amd_pmc_probe to ~28800us. Reviewed-by:
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Jorge Lopez authored
Update hp-wmi driver to address all code style issues reported by checkpatch.pl script. All changes were validated on a HP ZBook Workstation, HP EliteBook x360, and HP EliteBook 850 G8 notebooks. Signed-off-by:
Jorge Lopez <jorge.lopez2@hp.com> Link: https://lore.kernel.org/r/20220404203626.4311-2-jorge.lopez2@hp.comSigned-off-by:
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Jakob Koschel authored
To move the list iterator variable into the list_for_each_entry_*() macro in the future it should be avoided to use the list iterator variable after the loop body. To *never* use the list iterator variable after the loop it was concluded to use a separate iterator variable instead of a found boolean [1]. This removes the need to use a found variable and simply checking if the variable was set, can determine if the break/goto was hit. Link: https://lore.kernel.org/all/CAHk-=wgRr_D8CB-D9Kg-c=EHreAsk5SqXPwr9Y7k9sA6cWXJ6w@mail.gmail.com/Signed-off-by:
Jakob Koschel <jakobkoschel@gmail.com> Link: https://lore.kernel.org/r/20220324072015.62063-1-jakobkoschel@gmail.comReviewed-by:
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Daniel Beer authored
Winmate FM07 and FM07P in-vehicle computers have a row of five buttons below the display. This module adds an input device that delivers key events when these buttons are pressed. Signed-off-by:
Daniel Beer <daniel.beer@tirotech.co.nz> Link: https://lore.kernel.org/r/623a110a.1c69fb81.64f39.0118@mx.google.comReviewed-by:
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Herton R. Krzesinski authored
Build of intel-speed-select will fail if you run: $ LDFLAGS="-Wl,--as-needed" /usr/bin/make V=1 ... gcc -O2 -Wall -g -D_GNU_SOURCE -Iinclude -I/usr/include/libnl3 -Wl,--as-needed -lnl-genl-3 -lnl-3 intel-speed-select-in.o -o intel-speed-select /usr/bin/ld: intel-speed-select-in.o: in function `handle_event': (...)/linux/tools/power/x86/intel-speed-select/hfi-events.c:189: undefined reference to `nlmsg_hdr' ... In this case the problem is that order when linking matters when using the flag -Wl,--as-needed, symbols not used at that point are discarded. So since intel-speed-select-in.o comes after, at that point the libraries/symbols are already discarded and then missing/undefined references are reported. To fix this, make sure we specify LDFLAGS after the object file. Acked-by:
Herton R. Krzesinski <herton@redhat.com> Link: https://lore.kernel.org/r/20220404210525.725611-1-herton@redhat.comSigned-off-by:
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- 04 Apr, 2022 8 commits
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Mario Limonciello authored
Since commit b1f66033 ("platform/x86: amd-pmc: Move to later in the suspend process") amd-pmc doesn't use traditional suspend resume callback anymore but relies on functions only created declared when CONFIG_SUSPEND is set. Check for CONFIG_SUSPEND and only use those functions in those circumstances. Fixes: commit b1f66033 ("platform/x86: amd-pmc: Move to later in the suspend process") Reported-by:
Randy Dunlap <rdunlap@infradead.org> Signed-off-by:
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Wei Li authored
Since there is already a generic function strstarts() that check if a string starts with a given prefix, cleanup str_starts_with(). Signed-off-by:
Wei Li <liwei391@huawei.com> Acked-by:
Peter Kästle <peter@piie.net> Link: https://lore.kernel.org/r/20220326020249.3266561-1-liwei391@huawei.comReviewed-by:
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Hans de Goede authored
Cleanup / fix some minor issues. Signed-off-by:
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Hans de Goede authored
Fix the following warnings from "make htmldocs": Documentation/ABI/testing/sysfs-class-firmware-attributes:130: ERROR: Unexpected indentation. ERROR: Unexpected indentation. ERROR: Unexpected indentation. Signed-off-by:
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Hans de Goede authored
Fix the following warnings from "make htmldocs": Documentation/ABI/testing/sysfs-driver-intel_sdsi:2: WARNING: Unexpected indentation. WARNING: Block quote ends without a blank line; unexpected unindent. WARNING: Definition list ends without a blank line; unexpected unindent. By turning the error-code table into a proper ReST table. While at it also fix the error-code table mixing tab and spaces for indentation (switch to all tabs). Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
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Haowen Bai authored
Clean up the following includecheck warning: drivers/platform/x86/barco-p50-gpio.c: linux/io.h is included more than once. No functional change. Signed-off-by:
Haowen Bai <baihaowen@meizu.com> Acked-by:
Peter Korsgaard <peter.korsgaard@barco.com> Link: https://lore.kernel.org/r/1648021825-6182-1-git-send-email-baihaowen@meizu.comSigned-off-by:
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Jiapeng Chong authored
Eliminate the follow smatch warnings: drivers/platform/x86/samsung-laptop.c:1124 kbd_led_set() warn: unsigned 'value' is never less than zero. Reported-by:
Abaci Robot <abaci@linux.alibaba.com> Signed-off-by:
Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Link: https://lore.kernel.org/r/20220322061830.105579-1-jiapeng.chong@linux.alibaba.comReviewed-by:
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Mark Pearson authored
Complete some clean-ups as reqested from the last review as follow-ups - Remove certificate from structure as no need to store it any more - Clean up return code handling - Moved freeing of signature to before admin object released (issue seen in testing when unloading module) - Minor code flow improvements Signed-off-by:
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- 03 Apr, 2022 7 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-traceLinus Torvalds authored
Pull more tracing updates from Steven Rostedt: - Rename the staging files to give them some meaning. Just stage1,stag2,etc, does not show what they are for - Check for NULL from allocation in bootconfig - Hold event mutex for dyn_event call in user events - Mark user events to broken (to work on the API) - Remove eBPF updates from user events - Remove user events from uapi header to keep it from being installed. - Move ftrace_graph_is_dead() into inline as it is called from hot paths and also convert it into a static branch. * tag 'trace-v5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing: Move user_events.h temporarily out of include/uapi ftrace: Make ftrace_graph_is_dead() a static branch tracing: Set user_events to BROKEN tracing/user_events: Remove eBPF interfaces tracing/user_events: Hold event_mutex during dyn_event_add proc: bootconfig: Add null pointer check tracing: Rename the staging files for trace_events
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linuxLinus Torvalds authored
Pull clk fix from Stephen Boyd: "A single revert to fix a boot regression seen when clk_put() started dropping rate range requests. It's best to keep various systems booting so we'll kick this out and try again next time" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: Revert "clk: Drop the rate range on clk_put()"
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixes from Thomas Gleixner: "A set of x86 fixes and updates: - Make the prctl() for enabling dynamic XSTATE components correct so it adds the newly requested feature to the permission bitmap instead of overwriting it. Add a selftest which validates that. - Unroll string MMIO for encrypted SEV guests as the hypervisor cannot emulate it. - Handle supervisor states correctly in the FPU/XSTATE code so it takes the feature set of the fpstate buffer into account. The feature sets can differ between host and guest buffers. Guest buffers do not contain supervisor states. So far this was not an issue, but with enabling PASID it needs to be handled in the buffer offset calculation and in the permission bitmaps. - Avoid a gazillion of repeated CPUID invocations in by caching the values early in the FPU/XSTATE code. - Enable CONFIG_WERROR in x86 defconfig. - Make the X86 defconfigs more useful by adapting them to Y2022 reality" * tag 'x86-urgent-2022-04-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/fpu/xstate: Consolidate size calculations x86/fpu/xstate: Handle supervisor states in XSTATE permissions x86/fpu/xsave: Handle compacted offsets correctly with supervisor states x86/fpu: Cache xfeature flags from CPUID x86/fpu/xsave: Initialize offset/size cache early x86/fpu: Remove unused supervisor only offsets x86/fpu: Remove redundant XCOMP_BV initialization x86/sev: Unroll string mmio with CC_ATTR_GUEST_UNROLL_STRING_IO x86/config: Make the x86 defconfigs a bit more usable x86/defconfig: Enable WERROR selftests/x86/amx: Update the ARCH_REQ_XCOMP_PERM test x86/fpu/xstate: Fix the ARCH_REQ_XCOMP_PERM implementation -
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull RT signal fix from Thomas Gleixner: "Revert the RT related signal changes. They need to be reworked and generalized" * tag 'core-urgent-2022-04-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: Revert "signal, x86: Delay calling signals in atomic on RT enabled kernels"
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git://git.infradead.org/users/hch/dma-mappingLinus Torvalds authored
Pull more dma-mapping updates from Christoph Hellwig: - fix a regression in dma remap handling vs AMD memory encryption (me) - finally kill off the legacy PCI DMA API (Christophe JAILLET) * tag 'dma-mapping-5.18-1' of git://git.infradead.org/users/hch/dma-mapping: dma-mapping: move pgprot_decrypted out of dma_pgprot PCI/doc: cleanup references to the legacy PCI DMA API PCI: Remove the deprecated "pci-dma-compat.h" API
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git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds authored
Pull ARM fixes from Russell King: - avoid unnecessary rebuilds for library objects - fix return value of __setup handlers - fix invalid input check for "crashkernel=" kernel option - silence KASAN warnings in unwind_frame * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 9191/1: arm/stacktrace, kasan: Silence KASAN warnings in unwind_frame() ARM: 9190/1: kdump: add invalid input check for 'crashkernel=0' ARM: 9187/1: JIVE: fix return value of __setup handler ARM: 9189/1: decompressor: fix unneeded rebuilds of library objects
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