- 05 Apr, 2023 10 commits
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Oliver Upton authored
A subsequent change to KVM will allow negative returns from SMCCC handlers to exit to userspace. Make way for this change by explicitly returning SMCCC_RET_NOT_SUPPORTED to the guest if the VM is configured to use an unknown PSCI version. Add a WARN since this is undoubtedly a KVM bug. Signed-off-by: Oliver Upton <oliver.upton@linux.dev> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230404154050.2270077-11-oliver.upton@linux.dev
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Oliver Upton authored
As the SMCCC (and related specifications) march towards an 'everything and the kitchen sink' interface for interacting with a system it becomes less likely that KVM will support every related feature. We could do better by letting userspace have a crack at it instead. Allow userspace to define an 'SMCCC filter' that applies to both HVCs and SMCs initiated by the guest. Supporting both conduits with this interface is important for a couple of reasons. Guest SMC usage is table stakes for a nested guest, as HVCs are always taken to the virtual EL2. Additionally, guests may want to interact with a service on the secure side which can now be proxied by userspace. Signed-off-by: Oliver Upton <oliver.upton@linux.dev> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230404154050.2270077-10-oliver.upton@linux.dev
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Oliver Upton authored
In anticipation of user hypercall filters, add the necessary plumbing to get SMCCC calls out to userspace. Even though the exit structure has space for KVM to pass register arguments, let's just avoid it altogether and let userspace poke at the registers via KVM_GET_ONE_REG. This deliberately stretches the definition of a 'hypercall' to cover SMCs from EL1 in addition to the HVCs we know and love. KVM doesn't support EL1 calls into secure services, but now we can paint that as a userspace problem and be done with it. Finally, we need a flag to let userspace know what conduit instruction was used (i.e. SMC vs. HVC). Signed-off-by: Oliver Upton <oliver.upton@linux.dev> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230404154050.2270077-9-oliver.upton@linux.dev
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Oliver Upton authored
Maple tree is an efficient B-tree implementation that is intended for storing non-overlapping intervals. Such a data structure is a good fit for the SMCCC filter as it is desirable to sparsely allocate the 32 bit function ID space. To that end, add a maple tree to kvm_arch and correctly init/teardown along with the VM. Wire in a test against the hypercall filter for HVCs which does nothing until the controls are exposed to userspace. Signed-off-by: Oliver Upton <oliver.upton@linux.dev> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230404154050.2270077-8-oliver.upton@linux.dev
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Oliver Upton authored
KVM presently allows userspace to filter guest hypercalls with bitmaps expressed via pseudo-firmware registers. These bitmaps have a narrow scope and, of course, can only allow/deny a particular call. A subsequent change to KVM will introduce a generalized UAPI for filtering hypercalls, allowing functions to be forwarded to userspace. Refactor the existing hypercall filtering logic to make room for more than two actions. While at it, generalize the function names around SMCCC as it is the basis for the upcoming UAPI. No functional change intended. Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Oliver Upton <oliver.upton@linux.dev> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230404154050.2270077-7-oliver.upton@linux.dev
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Oliver Upton authored
Whelp, the architecture gods have spoken and confirmed that the function ID space is common between SMCs and HVCs. Not only that, the expectation is that hypervisors handle calls to both SMC and HVC conduits. KVM recently picked up support for SMCCCs in commit bd36b1a9 ("KVM: arm64: nv: Handle SMCs taken from virtual EL2") but scoped it only to a nested hypervisor. Let's just open the floodgates and let EL1 access our SMCCC implementation with the SMC instruction as well. Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Oliver Upton <oliver.upton@linux.dev> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230404154050.2270077-6-oliver.upton@linux.dev
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Oliver Upton authored
KVM handles SMCCC calls from virtual EL2 that use the SMC instruction since commit bd36b1a9 ("KVM: arm64: nv: Handle SMCs taken from virtual EL2"). Thus, the function name of the handler no longer reflects reality. Normalize the name on SMCCC, since that's the only hypercall interface KVM supports in the first place. No fuctional change intended. Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Oliver Upton <oliver.upton@linux.dev> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230404154050.2270077-5-oliver.upton@linux.dev
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Oliver Upton authored
A subsequent change will allow userspace to convey a filter for hypercalls through a vm device attribute. Add the requisite boilerplate for vm attribute accessors. Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Oliver Upton <oliver.upton@linux.dev> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230404154050.2270077-4-oliver.upton@linux.dev
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Oliver Upton authored
The test_bit(...) pattern is quite a lot of keystrokes. Replace existing callsites with a helper. No functional change intended. Signed-off-by: Oliver Upton <oliver.upton@linux.dev> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230404154050.2270077-3-oliver.upton@linux.dev
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Oliver Upton authored
The 'longmode' field is a bit annoying as it blows an entire __u32 to represent a boolean value. Since other architectures are looking to add support for KVM_EXIT_HYPERCALL, now is probably a good time to clean it up. Redefine the field (and the remaining padding) as a set of flags. Preserve the existing ABI by using bit 0 to indicate if the guest was in long mode and requiring that the remaining 31 bits must be zero. Cc: Paolo Bonzini <pbonzini@redhat.com> Acked-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Oliver Upton <oliver.upton@linux.dev> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230404154050.2270077-2-oliver.upton@linux.dev
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- 19 Mar, 2023 16 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-traceLinus Torvalds authored
Pull tracing fixes from Steven Rostedt: - Fix setting affinity of hwlat threads in containers Using sched_set_affinity() has unwanted side effects when being called within a container. Use set_cpus_allowed_ptr() instead - Fix per cpu thread management of the hwlat tracer: - Do not start per_cpu threads if one is already running for the CPU - When starting per_cpu threads, do not clear the kthread variable as it may already be set to running per cpu threads - Fix return value for test_gen_kprobe_cmd() On error the return value was overwritten by being set to the result of the call from kprobe_event_delete(), which would likely succeed, and thus have the function return success - Fix splice() reads from the trace file that was broken by commit 36e2c742 ("fs: don't allow splice read/write without explicit ops") - Remove obsolete and confusing comment in ring_buffer.c The original design of the ring buffer used struct page flags for tricks to optimize, which was shortly removed due to them being tricks. But a comment for those tricks remained - Set local functions and variables to static * tag 'trace-v6.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: tracing/hwlat: Replace sched_setaffinity with set_cpus_allowed_ptr ring-buffer: remove obsolete comment for free_buffer_page() tracing: Make splice_read available again ftrace: Set direct_ops storage-class-specifier to static trace/hwlat: Do not start per-cpu thread if it is already running trace/hwlat: Do not wipe the contents of per-cpu thread data tracing/osnoise: set several trace_osnoise.c variables storage-class-specifier to static tracing: Fix wrong return in kprobe_event_gen_test.c
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Costa Shulyupin authored
There is a problem with the behavior of hwlat in a container, resulting in incorrect output. A warning message is generated: "cpumask changed while in round-robin mode, switching to mode none", and the tracing_cpumask is ignored. This issue arises because the kernel thread, hwlatd, is not a part of the container, and the function sched_setaffinity is unable to locate it using its PID. Additionally, the task_struct of hwlatd is already known. Ultimately, the function set_cpus_allowed_ptr achieves the same outcome as sched_setaffinity, but employs task_struct instead of PID. Test case: # cd /sys/kernel/tracing # echo 0 > tracing_on # echo round-robin > hwlat_detector/mode # echo hwlat > current_tracer # unshare --fork --pid bash -c 'echo 1 > tracing_on' # dmesg -c Actual behavior: [573502.809060] hwlat_detector: cpumask changed while in round-robin mode, switching to mode none Link: https://lore.kernel.org/linux-trace-kernel/20230316144535.1004952-1-costa.shul@redhat.com Cc: Masami Hiramatsu <mhiramat@kernel.org> Fixes: 0330f7aa ("tracing: Have hwlat trace migrate across tracing_cpumask CPUs") Signed-off-by: Costa Shulyupin <costa.shul@redhat.com> Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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Vlastimil Babka authored
The comment refers to mm/slob.c which is being removed. It comes from commit ed56829c ("ring_buffer: reset buffer page when freeing") and according to Steven the borrowed code was a page mapcount and mapping reset, which was later removed by commit e4c2ce82 ("ring_buffer: allocate buffer page pointer"). Thus the comment is not accurate anyway, remove it. Link: https://lore.kernel.org/linux-trace-kernel/20230315142446.27040-1-vbabka@suse.cz Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Ingo Molnar <mingo@elte.hu> Reported-by: Mike Rapoport <mike.rapoport@gmail.com> Suggested-by: Steven Rostedt (Google) <rostedt@goodmis.org> Fixes: e4c2ce82 ("ring_buffer: allocate buffer page pointer") Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Reviewed-by: Mukesh Ojha <quic_mojha@quicinc.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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Sung-hun Kim authored
Since the commit 36e2c742 ("fs: don't allow splice read/write without explicit ops") is applied to the kernel, splice() and sendfile() calls on the trace file (/sys/kernel/debug/tracing /trace) return EINVAL. This patch restores these system calls by initializing splice_read in file_operations of the trace file. This patch only enables such functionalities for the read case. Link: https://lore.kernel.org/linux-trace-kernel/20230314013707.28814-1-sfoon.kim@samsung.com Cc: stable@vger.kernel.org Fixes: 36e2c742 ("fs: don't allow splice read/write without explicit ops") Signed-off-by: Sung-hun Kim <sfoon.kim@samsung.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/ttyLinus Torvalds authored
Pull tty/serial driver fixes from Greg KH: "Here are some small tty and serial driver fixes for 6.3-rc3 to resolve some reported issues. They include: - 8250 driver Kconfig issue pointed out by you that showed up in -rc1 - qcom-geni serial driver fixes - various 8250 driver fixes for reported problems - fsl_lpuart driver fixes - serdev fix for regression in -rc1 - vt.c bugfix All have been in linux-next for over a week with no reported problems" * tag 'tty-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: tty: vt: protect KD_FONT_OP_GET_TALL from unbound access serial: qcom-geni: drop bogus uart_write_wakeup() serial: qcom-geni: fix mapping of empty DMA buffer serial: qcom-geni: fix DMA mapping leak on shutdown serial: qcom-geni: fix console shutdown hang serdev: Set fwnode for serdev devices tty: serial: fsl_lpuart: fix race on RX DMA shutdown serial: 8250_pci1xxxx: Disable SERIAL_8250_PCI1XXXX config by default serial: 8250_fsl: fix handle_irq locking serial: 8250_em: Fix UART port type serial: 8250: ASPEED_VUART: select REGMAP instead of depending on it tty: serial: fsl_lpuart: skip waiting for transmission complete when UARTCTRL_SBK is asserted Revert "tty: serial: fsl_lpuart: adjust SERIAL_FSL_LPUART_CONSOLE config dependency"
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds authored
Pull char/misc driver fixes from Greg KH: "Here are a few small char/misc/other driver subsystem patches to resolve reported problems for 6.3-rc3. Included in here are: - Interconnect driver fixes for reported problems - Memory driver fixes for reported problems - nvmem core fix - firmware driver fix for reported problem All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (23 commits) memory: tegra30-emc: fix interconnect registration race memory: tegra20-emc: fix interconnect registration race memory: tegra124-emc: fix interconnect registration race memory: tegra: fix interconnect registration race interconnect: exynos: drop redundant link destroy interconnect: exynos: fix registration race interconnect: exynos: fix node leak in probe PM QoS error path interconnect: qcom: msm8974: fix registration race interconnect: qcom: rpmh: fix registration race interconnect: qcom: rpmh: fix probe child-node error handling interconnect: qcom: rpm: fix registration race nvmem: core: return -ENOENT if nvmem cell is not found firmware: xilinx: don't make a sleepable memory allocation from an atomic context interconnect: qcom: rpm: fix probe child-node error handling interconnect: qcom: osm-l3: fix registration race interconnect: imx: fix registration race interconnect: fix provider registration API interconnect: fix icc_provider_del() error handling interconnect: fix mem leak when freeing nodes interconnect: qcom: qcm2290: Fix MASTER_SNOC_BIMC_NRT ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull RAS fix from Borislav Petkov: - Flush out logged errors immediately after MCA banks configuration changes over sysfs have been done instead of waiting until something else triggers the workqueue later - another error or the polling interval cycle is reached * tag 'ras_urgent_for_v6.3_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mce: Make sure logged MCEs are processed after sysfs update
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull perf fixes from Borislav Petkov: - Check whether sibling events have been deactivated before adding them to groups - Update the proper event time tracking variable depending on the event type - Fix a memory overwrite issue due to using the wrong function argument when outputting perf events * tag 'perf_urgent_for_v6.3_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: Fix check before add_event_to_groups() in perf_group_detach() perf: fix perf_event_context->time perf/core: Fix perf_output_begin parameter is incorrectly invoked in perf_event_bpf_output
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixes from Borislav Petkov: "There's a little bit more 'movement' in there for my taste but it needs to happen and should make the code better after it. - Check cmdline_find_option()'s return value before further processing - Clear temporary storage in the resctrl code to prevent access to an unexistent MSR - Add a simple throttling mechanism to protect the hypervisor from potentially malicious SEV guests issuing requests in rapid succession. In order to not jeopardize the sanity of everyone involved in maintaining this code, the request issuing side has received a cleanup, split in more or less trivial, small and digestible pieces. Otherwise, the code was threatening to become an unmaintainable mess. Therefore, that cleanup is marked indirectly also for stable so that there's no differences between the upstream code and the stable variant when it comes down to backporting more there" * tag 'x86_urgent_for_v6.3_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm: Fix use of uninitialized buffer in sme_enable() x86/resctrl: Clear staged_config[] before and after it is used virt/coco/sev-guest: Add throttling awareness virt/coco/sev-guest: Convert the sw_exit_info_2 checking to a switch-case virt/coco/sev-guest: Do some code style cleanups virt/coco/sev-guest: Carve out the request issuing logic into a helper virt/coco/sev-guest: Remove the disable_vmpck label in handle_guest_request() virt/coco/sev-guest: Simplify extended guest request handling virt/coco/sev-guest: Check SEV_SNP attribute at probe time
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4Linus Torvalds authored
Pull ext4 fix from Ted Ts'o: "Fix a double unlock bug on an error path in ext4, found by smatch and syzkaller" * tag 'ext4_for_linus_urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: fix possible double unlock when moving a directory
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Tom Rix authored
smatch reports this warning kernel/trace/ftrace.c:2594:19: warning: symbol 'direct_ops' was not declared. Should it be static? The variable direct_ops is only used in ftrace.c, so it should be static Link: https://lore.kernel.org/linux-trace-kernel/20230311135113.711824-1-trix@redhat.comSigned-off-by: Tom Rix <trix@redhat.com> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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Tero Kristo authored
The hwlatd tracer will end up starting multiple per-cpu threads with the following script: #!/bin/sh cd /sys/kernel/debug/tracing echo 0 > tracing_on echo hwlat > current_tracer echo per-cpu > hwlat_detector/mode echo 100000 > hwlat_detector/width echo 200000 > hwlat_detector/window echo 1 > tracing_on To fix the issue, check if the hwlatd thread for the cpu is already running, before starting a new one. Along with the previous patch, this avoids running multiple instances of the same CPU thread on the system. Link: https://lore.kernel.org/all/20230302113654.2984709-1-tero.kristo@linux.intel.com/ Link: https://lkml.kernel.org/r/20230310100451.3948583-3-tero.kristo@linux.intel.com Cc: stable@vger.kernel.org Fixes: f46b1652 ("trace/hwlat: Implement the per-cpu mode") Signed-off-by: Tero Kristo <tero.kristo@linux.intel.com> Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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Tero Kristo authored
Do not wipe the contents of the per-cpu kthread data when starting the tracer, as this will completely forget about already running instances and can later start new additional per-cpu threads. Link: https://lore.kernel.org/all/20230302113654.2984709-1-tero.kristo@linux.intel.com/ Link: https://lkml.kernel.org/r/20230310100451.3948583-2-tero.kristo@linux.intel.com Cc: stable@vger.kernel.org Fixes: f46b1652 ("trace/hwlat: Implement the per-cpu mode") Signed-off-by: Tero Kristo <tero.kristo@linux.intel.com> Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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Tom Rix authored
smatch reports several similar warnings kernel/trace/trace_osnoise.c:220:1: warning: symbol '__pcpu_scope_per_cpu_osnoise_var' was not declared. Should it be static? kernel/trace/trace_osnoise.c:243:1: warning: symbol '__pcpu_scope_per_cpu_timerlat_var' was not declared. Should it be static? kernel/trace/trace_osnoise.c:335:14: warning: symbol 'interface_lock' was not declared. Should it be static? kernel/trace/trace_osnoise.c:2242:5: warning: symbol 'timerlat_min_period' was not declared. Should it be static? kernel/trace/trace_osnoise.c:2243:5: warning: symbol 'timerlat_max_period' was not declared. Should it be static? These variables are only used in trace_osnoise.c, so it should be static Link: https://lore.kernel.org/linux-trace-kernel/20230309150414.4036764-1-trix@redhat.comSigned-off-by: Tom Rix <trix@redhat.com> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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Anton Gusev authored
Overwriting the error code with the deletion result may cause the function to return 0 despite encountering an error. Commit b111545d ("tracing: Remove the useless value assignment in test_create_synth_event()") solves a similar issue by returning the original error code, so this patch does the same. Found by Linux Verification Center (linuxtesting.org) with SVACE. Link: https://lore.kernel.org/linux-trace-kernel/20230131075818.5322-1-aagusev@ispras.ruSigned-off-by: Anton Gusev <aagusev@ispras.ru> Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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- 18 Mar, 2023 6 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdevLinus Torvalds authored
Pull fbdev fixes from Helge Deller: "The majority of lines changed is due to a code style cleanup in the pnmtologo helper program. Arnd removed the omap1 osk driver and the SIS fb driver is now orphaned. Other than that it's the usual bunch of small fixes and cleanups, e.g. prevent possible divide-by-zero in various fb drivers if the pixclock is zero and various conversions to devm_platform*() and of_property*() functions: - Drop omap1 osk driver - Various potential divide by zero pixclock fixes - Add pixelclock and fb_check_var() to stifb - Code style cleanups and indenting fixes" * tag 'fbdev-for-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev: fbdev: Use of_property_present() for testing DT property presence fbdev: au1200fb: Fix potential divide by zero fbdev: lxfb: Fix potential divide by zero fbdev: intelfb: Fix potential divide by zero fbdev: nvidia: Fix potential divide by zero fbdev: stifb: Provide valid pixelclock and add fb_check_var() checks fbdev: omapfb: remove omap1 osk driver fbdev: xilinxfb: Use devm_platform_get_and_ioremap_resource() fbdev: wm8505fb: Use devm_platform_ioremap_resource() fbdev: pxa3xx-gcu: Use devm_platform_get_and_ioremap_resource() fbdev: Use of_property_read_bool() for boolean properties fbdev: clps711x-fb: Use devm_platform_get_and_ioremap_resource() fbdev: tgafb: Fix potential divide by zero MAINTAINERS: orphan SIS FRAMEBUFFER DRIVER fbdev: omapfb: cleanup inconsistent indentation drivers: video: logo: add SPDX comment, remove GPL notice in pnmtologo.c drivers: video: logo: fix code style issues in pnmtologo.c
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Linus Torvalds authored
Merge tag 'kbuild-fixes-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild fixes from Masahiro Yamada: - Exclude kallsyms_seqs_of_names from kallsyms to fix build error - Fix 'make kernelrelease' for external module builds - Get the Debian source package compilable again - Fix the wrong uname when Debian packages are built with the KDEB_PKGVERSION option - Fix superfluous CROSS_COMPILE when building Debian packages - Fix RPM package build error when KCONFIG_CONFIG is set - Use 'git archive' for creating source tarballs - Remove the scripts/list-gitignored tool * tag 'kbuild-fixes-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kbuild: use git-archive for source package creation kbuild: rpm-pkg: move source components to rpmbuild/SOURCES kbuild: deb-pkg: use dh_listpackages to know enabled packages kbuild: deb-pkg: split image and debug objects staging out into functions kbuild: deb-pkg: set CROSS_COMPILE only when undefined kbuild: deb-pkg: do not take KERNELRELEASE from the source version kbuild: deb-pkg: make debian source package working again Makefile: Make kernelrelease target work with M= kconfig: Update config changed flag before calling callback kallsyms: add kallsyms_seqs_of_names to list of special symbols
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Linus Torvalds authored
Merge tag 'hwmon-for-v6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon fixes from Guenter Roeck: - ltc2992, adm1266: Set missing can_sleep flag - tmp512/tmp513: Drop of_match_ptr for ID table to fix build with !CONFIG_OF - ucd90320: Fix back-to-back access problem - ina3221: Fix bad error return from probe function - xgene: Fix use-after-free bug in remove function - adt7475: Fix hysteresis register bit masks, and fix association of 'smoothing' attributes * tag 'hwmon-for-v6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (ltc2992) Set `can_sleep` flag for GPIO chip hwmon: (adm1266) Set `can_sleep` flag for GPIO chip hwmon: tmp512: drop of_match_ptr for ID table hwmon: (ucd90320) Add minimum delay between bus accesses hwmon: (ina3221) return prober error code hwmon: (xgene) Fix use after free bug in xgene_hwmon_remove due to race condition hwmon: (adt7475) Fix masking of hysteresis registers hwmon: (adt7475) Display smoothing attributes in correct order
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git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libataLinus Torvalds authored
Pull ata fixes from Damien Le Moal: - Two fixes from Ondrej for the pata_parport driver to address an issue with error handling during drive connection and to fix memory leaks in case of errors during initialization and when disconnecting a device. * tag 'ata-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata: ata: pata_parport: fix memory leaks ata: pata_parport: fix parport release without claim
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Linus Torvalds authored
The __find_restype() function loops over the m5mols_default_ffmt[] array, and the termination condition ends up being wrong: instead of stopping when the iterator becomes the size of the array it traverses, it stops after it has already overshot the array. Now, in practice this doesn't likely matter, because the code will always find the entry it looks for, and will thus return early and never hit that last extra iteration. But it turns out that clang will unroll the loop fully, because it has only two iterations (well, three due to the off-by-one bug), and then clang will end up just giving up in the middle of the loop unrolling when it notices that the code walks past the end of the array. And that made 'objtool' very unhappy indeed, because the generated code just falls off the edge of the universe, and ends up falling through to the next function, causing this warning: drivers/media/i2c/m5mols/m5mols.o: warning: objtool: m5mols_set_fmt() falls through to next function m5mols_get_frame_desc() Fix the loop ending condition. Reported-by: Jens Axboe <axboe@kernel.dk> Analyzed-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> Analyzed-by: Nick Desaulniers <ndesaulniers@google.com> Link: https://lore.kernel.org/linux-block/CAHk-=wgTSdKYbmB1JYM5vmHMcD9J9UZr0mn7BOYM_LudrP+Xvw@mail.gmail.com/ Fixes: bc125106 ("[media] Add support for M-5MOLS 8 Mega Pixel camera ISP") Cc: HeungJun, Kim <riverful.kim@samsung.com> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Theodore Ts'o authored
Fixes: 0813299c ("ext4: Fix possible corruption when moving a directory") Link: https://lore.kernel.org/r/5efbe1b9-ad8b-4a4f-b422-24824d2b775c@kili.mountainReported-by: Dan Carpenter <error27@gmail.com> Reported-by: syzbot+0c73d1d8b952c5f3d714@syzkaller.appspotmail.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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- 17 Mar, 2023 8 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds authored
Pull networking fixes from Jakub Kicinski: "Including fixes from netfilter, wifi and ipsec. A little more changes than usual, but it's pretty normal for us that the rc3/rc4 PRs are oversized as people start testing in earnest. Possibly an extra boost from people deploying the 6.1 LTS but that's more of an unscientific hunch. Current release - regressions: - phy: mscc: fix deadlock in phy_ethtool_{get,set}_wol() - virtio: vsock: don't use skbuff state to account credit - virtio: vsock: don't drop skbuff on copy failure - virtio_net: fix page_to_skb() miscalculating the memory size Current release - new code bugs: - eth: correct xdp_features after device reconfig - wifi: nl80211: fix the puncturing bitmap policy - net/mlx5e: flower: - fix raw counter initialization - fix missing error code - fix cloned flow attribute - ipa: - fix some register validity checks - fix a surprising number of bad offsets - kill FILT_ROUT_CACHE_CFG IPA register Previous releases - regressions: - tcp: fix bind() conflict check for dual-stack wildcard address - veth: fix use after free in XDP_REDIRECT when skb headroom is small - ipv4: fix incorrect table ID in IOCTL path - ipvlan: make skb->skb_iif track skb->dev for l3s mode - mptcp: - fix possible deadlock in subflow_error_report - fix UaFs when destroying unaccepted and listening sockets - dsa: mv88e6xxx: fix max_mtu of 1492 on 6165, 6191, 6220, 6250, 6290 Previous releases - always broken: - tcp: tcp_make_synack() can be called from process context, don't assume preemption is disabled when updating stats - netfilter: correct length for loading protocol registers - virtio_net: add checking sq is full inside xdp xmit - bonding: restore IFF_MASTER/SLAVE flags on bond enslave Ethertype change - phy: nxp-c45-tja11xx: fix MII_BASIC_CONFIG_REV bit number - eth: i40e: fix crash during reboot when adapter is in recovery mode - eth: ice: avoid deadlock on rtnl lock when auxiliary device plug/unplug meets bonding - dsa: mt7530: - remove now incorrect comment regarding port 5 - set PLL frequency and trgmii only when trgmii is used - eth: mtk_eth_soc: reset PCS state when changing interface types Misc: - ynl: another license adjustment - move the TCA_EXT_WARN_MSG attribute for tc action" * tag 'net-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (108 commits) selftests: bonding: add tests for ether type changes bonding: restore bond's IFF_SLAVE flag if a non-eth dev enslave fails bonding: restore IFF_MASTER/SLAVE flags on bond enslave ether type change net: renesas: rswitch: Fix GWTSDIE register handling net: renesas: rswitch: Fix the output value of quote from rswitch_rx() ethernet: sun: add check for the mdesc_grab() net: ipa: fix some register validity checks net: ipa: kill FILT_ROUT_CACHE_CFG IPA register net: ipa: add two missing declarations net: ipa: reg: include <linux/bug.h> net: xdp: don't call notifiers during driver init net/sched: act_api: add specific EXT_WARN_MSG for tc action Revert "net/sched: act_api: move TCA_EXT_WARN_MSG to the correct hierarchy" net: dsa: microchip: fix RGMII delay configuration on KSZ8765/KSZ8794/KSZ8795 ynl: make the tooling check the license ynl: broaden the license even more tools: ynl: make definitions optional again hsr: ratelimit only when errors are printed qed/qed_mng_tlv: correctly zero out ->min instead of ->hour selftests: net: devlink_port_split.py: skip test if no suitable device available ...
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git://git.kernel.dk/linuxLinus Torvalds authored
Pull block fixes from Jens Axboe: "A bit bigger than usual, as the NVMe pull request missed last weeks submission. In detail: - NVMe pull request via Christoph: - Avoid potential UAF in nvmet_req_complete (Damien Le Moal) - More quirks (Elmer Miroslav Mosher Golovin, Philipp Geulen) - Fix a memory leak in the nvme-pci probe teardown path (Irvin Cote) - Repair the MAINTAINERS entry (Lukas Bulwahn) - Fix handling single range discard request (Ming Lei) - Show more opcode names in trace events (Minwoo Im) - Fix nvme-tcp timeout reporting (Sagi Grimberg) - MD pull request via Song: - Two fixes for old issues (Neil) - Resource leak in device stopping (Xiao) - Bio based device stats fix (Yu) - Kill unused CONFIG_BLOCK_COMPAT (Lukas) - sunvdc missing mdesc_grab() failure check (Liang) - Fix for reversal of request ordering upon issue for certain cases (Jan) - null_blk timeout fixes (Damien) - Loop use-after-free fix (Bart) - blk-mq SRCU fix for BLK_MQ_F_BLOCKING devices (Chris)" * tag 'block-6.3-2023-03-16' of git://git.kernel.dk/linux: block: remove obsolete config BLOCK_COMPAT md: select BLOCK_LEGACY_AUTOLOAD block: count 'ios' and 'sectors' when io is done for bio-based device block: sunvdc: add check for mdesc_grab() returning NULL nvmet: avoid potential UAF in nvmet_req_complete() nvme-trace: show more opcode names nvme-tcp: add nvme-tcp pdu size build protection nvme-tcp: fix opcode reporting in the timeout handler nvme-pci: add NVME_QUIRK_BOGUS_NID for Lexar NM620 nvme-pci: add NVME_QUIRK_BOGUS_NID for Netac NV3000 nvme-pci: fixing memory leak in probe teardown path nvme: fix handling single range discard request MAINTAINERS: repair malformed T: entries in NVM EXPRESS DRIVERS block: null_blk: cleanup null_queue_rq() block: null_blk: Fix handling of fake timeout request blk-mq: fix "bad unlock balance detected" on q->srcu in __blk_mq_run_dispatch_ops loop: Fix use-after-free issues block: do not reverse request order when flushing plug list md: avoid signed overflow in slot_store() md: Free resources in __md_stop
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git://git.kernel.dk/linuxLinus Torvalds authored
Pull io_uring fixes from Jens Axboe: - When PF_NO_SETAFFINITY was removed for io-wq threads, we kind of forgot about the SQPOLL thread. Remove it there as well, there's even less of a reason to set it there (Michal) - Fixup a confusing 'ret' setting (Li) - When MSG_RING is used to send a direct descriptor to another ring, it's possible to have it allocate it on the target ring rather than provide a specific index for it. If this is done, return the chosen value in the CQE, like we would've done locally (Pavel) - Fix a regression in this series on huge page bvec collapsing (Pavel) * tag 'io_uring-6.3-2023-03-16' of git://git.kernel.dk/linux: io_uring/rsrc: fix folio accounting io_uring/msg_ring: let target know allocated index io_uring: rsrc: Optimize return value variable 'ret' io_uring/sqpoll: Do not set PF_NO_SETAFFINITY on sqpoll threads
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull power management fixes from Rafael Wysocki: "These fix an error code path issue in a cpuidle driver and make the sleepgraph utility more robust against unexpected input. Specifics: - Fix the psci_pd_init_topology() failure path in the PSCI cpuidle driver (Shawn Guo) - Modify the sleepgraph utility so it does not crash on binary data in device names (Todd Brandt)" * tag 'pm-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: pm-graph: sleepgraph: Avoid crashing on binary data in device names cpuidle: psci: Iterate backwards over list in psci_pd_remove()
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull ACPI fixes from Rafael Wysocki: "These add some new quirks, fix PPTT handling, fix an ACPI utility and correct a mistake in the ACPI documentation. Specifics: - Fix ACPI PPTT handling to avoid sleep in the atomic context when it is not present (Sudeep Holla) - Add 'backlight=native' DMI quirk for Dell Vostro 15 3535 to the ACPI video driver (Chia-Lin Kao) - Add ACPI quirks for I2C device enumeration on Lenovo Yoga Book X90 and Acer Iconia One 7 B1-750 (Hans de Goede) - Fix handling of invalid command line option values in the ACPI pfrut utility (Chen Yu) - Fix references to I2C device data type in the ACPI documentation for device enumeration (Andy Shevchenko)" * tag 'acpi-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: tools: pfrut: Check if the input of level and type is in the right numeric range ACPI: PPTT: Fix to avoid sleep in the atomic context when PPTT is absent ACPI: x86: Add skip i2c clients quirk for Lenovo Yoga Book X90 ACPI: x86: Add skip i2c clients quirk for Acer Iconia One 7 B1-750 ACPI: x86: Introduce an acpi_quirk_skip_gpio_event_handlers() helper ACPI: video: Add backlight=native DMI quirk for Dell Vostro 15 3535 ACPI: docs: enumeration: Correct reference to the I²C device data type
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linuxLinus Torvalds authored
Pull turbostat fweaks and fixes from Len Brown: "Leprechaun sized fixes and tweaks touching only turbostat. 'Keeping happy users happy since 2010'" * 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: tools/power turbostat: version 2023.03.17 tools/power turbostat: fix decoding of HWP_STATUS tools/power turbostat: Introduce support for EMR tools/power turbostat: remove stray newlines from warn/warnx strings tools/power turbostat: Fix /dev/cpu_dma_latency warnings tools/power turbostat: Provide better debug messages for failed capabilities accesses tools/power turbostat: update dump of SECONDARY_TURBO_RATIO_LIMIT
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tipLinus Torvalds authored
Pull xen fixes from Juergen Gross: - cleanup for xen time handling - enable the VGA console in a Xen PVH dom0 - cleanup in the xenfs driver * tag 'for-linus-6.3-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen: remove unnecessary (void*) conversions x86/PVH: obtain VGA console info in Dom0 x86/xen/time: cleanup xen_tsc_safe_clocksource xen: update arch/x86/include/asm/xen/cpuid.h
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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linuxLinus Torvalds authored
Pull RISC-V fixes from Palmer Dabbelt: - fixes to the ASID allocator to avoid leaking stale mappings between tasks - fix the vmalloc fault handler to tolerate huge pages * tag 'riscv-for-linus-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: RISC-V: mm: Support huge page in vmalloc_fault() riscv: asid: Fixup stale TLB entry cause application crash Revert "riscv: mm: notify remote harts about mmu cache updates"
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