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2021-01-06torture: Auto-size SCF and scaling runs based on number of CPUsPaul E. McKenney
This commit improves torture.sh flexibility by autoscaling the number of CPUs to be used in variable-CPUs torture tests, including scftorture, refscale, rcuscale, and kvfree. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-06torture: Add "make allmodconfig" to torture.shPaul E. McKenney
This commit adds the ability to do "make allmodconfig" to torture.sh, given that normal rcutorture runs do not normally catch missing exports. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-06torture: Remove use of "eval" in torture.shPaul E. McKenney
The bash "eval" command enables Bobby Tables attacks, which might not be a concern in torture testing by themselves, but one could imagine these combined with a cut-and-paste attack. This commit therefore gets rid of them. This comes at a price in terms of bash quoting not working nicely, so the "--bootargs" argument lists are now passed to torture_one via a bash-variable side channel. This might be a bit ugly, but it will also allow torture.sh to grow its own --bootargs parameter. While in the area, add proper header comments for the bash functions. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-06torture: Make torture.sh use common time-duration bash functionsPaul E. McKenney
This commit makes torture.sh use the new bash functions get_starttime() and get_starttime_duration() created for kvm.sh. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-06torture: Add torture.sh torture-everything scriptPaul E. McKenney
Although tailoring a specific set of kvm.sh runs has served rcutorture testing well over many years, it requires a relatively distraction-free environment, which is not always available. This commit therefore adds a prototype torture.sh script that by default tortures pretty much everything the rcutorture scripting is designed to torture, and which can be given command-line arguments to take a more focused approach. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-05torture: Do Kconfig analysis only once per scenarioPaul E. McKenney
Currently, if a scenario is repeated as in "--configs '4*TREE01'", the Kconfig analysis is performed for each occurrance (four times in this example) and each analysis places the exact same data into the exact same files. This is not really an issue in this repetition-four example, but it can needlessly consume tens of seconds of wallclock time for something like "--config '128*TINY01'". This commit therefore does Kconfig analysis only once per set of repeats of a given scenario, courtesy of the "sort -u" command and an automatically generated awk script. While in the area, this commit also wordsmiths a comment. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-04torture: Allow standalone kvm-recheck.sh run detect --trust-makePaul E. McKenney
Normally, kvm-recheck.sh is run from kvm.sh, which provides the TORTURE_TRUST_MAKE environment variable that, if a non-empty string, indicates that the --trust-make command-line parameter has been passed to kvm.sh. If there was no --trust-make, kvm-recheck.sh insists that the Make.out file contain at least one "CC" command. Thus, when kvm-recheck.sh is run standalone to evaluate a prior --trust-make run, it will incorrectly insist that a proper kernel build did not happen. This commit therefore causes kvm-recheck.sh to also search the "log" file in the top-level results directory for the string "--trust-make". Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-04torture: Remove "Failed to add ttynull console" false positivePaul E. McKenney
Commit 757055ae8ded ("init/console: Use ttynull as a fallback when there is no console") results in the string "Warning: Failed to add ttynull console. No stdin, stdout, and stderr for the init process!" appearing on the console, which the rcutorture scripting interprets as a warning, which causes every rcutorture run to be flagged. However, the rcutorture init process never attempts to do any I/O, and thus does not care that it has no stdin, stdout, or stderr. This commit therefore causes the rcutorture scripting to ignore this message. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-04torture: Simplify exit-code plumbing for kvm-recheck.sh and kvm-find-errors.shPaul E. McKenney
This commit simplifies exit-code plumbing. It makes kvm-recheck.sh return the value 1 for a build error and 2 for a runtime error. It also makes kvm-find-errors.sh avoid checking runtime files for --build-only runs. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-04torture: s/STOP/STOP.1/ to avoid scenario collisionPaul E. McKenney
This commit changes the "STOP" file that is used to cleanly halt a running rcutorture run to "STOP.1" because no scenario directory will ever end with ".1". If there really was a scenario named "STOP", its directories would instead be named "STOP", "STOP.2", "STOP.3", and so on. While in the area, the commit also changes the kernel-run-time checks for this file to look directly in the directory above $resdir, thus avoiding the need to pass the TORTURE_STOPFILE environment variable to remote systems. While in the area, move the STOP.1 file to the top-level directory covering all of the scenarios. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-04torture: Add --dryrun batches to help schedule a distributed runPaul E. McKenney
When all of the remote systems have the same number of CPUs, one approach is to use one "--buildonly" run and one "--dryrun sched" run, and then distributing the batches out one per remote system. However, the output of "--dryrun sched" is not made for parsing, so this commit adds a "--dryrun batches" that provides the same information in easily parsed form. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-04torture: Stop hanging on panicPaul E. McKenney
By default, the "panic" kernel parameter is zero, which causes the kernel to loop indefinitely after a panic(). The rcutorture scripting will eventually kill the corresponding qemu process, but only after waiting for the full run duration plus a few minutes. This works, but delays notifying the developer of the failure. This commit therefore causes the rcutorture scripting to pass the "panic=-1" kernel parameter, which caused the kernel to instead unceremoniously shut down immediately. This in turn causes qemu to terminate, so that if all of the runs in a given batch panic(), the rcutorture scripting can immediately proceed to the next batch. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-04torture: Add kvm.sh test summary to end of log filePaul E. McKenney
This commit adds the test summary to the end of the log in the top-level directory containing the kvm.sh test artifacts. While in the area, it adds the kvm.sh exit code to this test summary. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-04torture: Make kvm.sh include --kconfig arguments in CPU calculationPaul E. McKenney
Currently, passing something like "--kconfig CONFIG_NR_CPUS=2" to kvm.sh has no effect on scenario scheduling. For scenarios that do not specify the number of CPUs, this can result in kvm.sh wastefully scheduling only one scenario at a time even when the --kconfig argument would allow a number to be run concurrently. This commit therefore makes kvm.sh consider the --kconfig arguments when scheduling scenarios across the available CPUs. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-04torture: Make kvm.sh return failure upon build failurePaul E. McKenney
The kvm.sh script uses kvm-find-errors.sh to evaluate whether or not a build failed. Unfortunately, kvm-find-errors.sh returns success if there are no failed runs (including when there are no runs at all) even if there are build failures. This commit therefore makes kvm-find-errors.sh return failure in response to build failures. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-04torture: Print run duration at end of kvm.sh executionPaul E. McKenney
Yes, you can mentally subtract the timestamps, but this commit makes the computer do this work. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-04torture: Make kvm.sh arguments accumulatePaul E. McKenney
Given that kvm.sh in invoked from scripts, it is only natural for different levels of scripting to provide their own Kconfig option values, for example. Unfortunately, right now, the last such argument on the command line wins. This commit therefore makes the --bootargs, --configs, --kconfigs, --kmake-args, and --qemu-args argument values accumulate. For example, where "--configs TREE01 --configs TREE02" would previously have run only scenario TREE02, now it will run both scenarios. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-04torture: Make kvm.sh "Test Summary" date be end of testPaul E. McKenney
Currently, the "date" command producing the output on the kvm.sh "Test Summary" line is executed at the beginning of the test, which produces a date that is less than helpful to someone wanting to know the duration of the test. This commit therefore defers this command's execution to the end of the test. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-04tools/rcutorture: Make identify_qemu_vcpus() independent of local languageFrederic Weisbecker
The rcutorture scripts' identify_qemu_vcpus() function expects `lscpu` to have a "CPU: " line, for example: CPU(s): 8 But different local language settings can give different results: Processeur(s) : 8 As a result, identify_qemu_vcpus() may return an empty string, resulting in the following warning (with the same local language settings): kvm-test-1-run.sh: ligne 138 : test: : nombre entier attendu comme expression This commit therefore changes identify_qemu_vcpus() to use getconf, which produces local-language-independend output. Cc: Josh Triplett <josh@joshtriplett.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Lai Jiangshan <jiangshanlai@gmail.com> Cc: rcu@vger.kernel.org Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-04torture: Add config2csv.sh script to compare torture scenariosPaul E. McKenney
This commit adds a config2csv.sh script that converts the specified torture-test scenarios' Kconfig options and kernel-boot parameters to .csv format. This allows easier comparison of scenarios when one fails and another does not. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-04torture: Prepare for splitting qemu execution from kvm-test-1-run.shPaul E. McKenney
Distributed execution of rcutorture is eased if the qemu execution can be split from the building of the kernel, as this allows target systems to be used that are not set up to build kernels. It also avoids issues with toolchain version skew across the cluster, aside of course from qemu and KVM version skew. This commit therefore records needed data as comments in the qemu-cmd file and moves recording of the starting time to just before qemu is launched. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-04torture: Allow kvm.sh --datestamp to specify subdirectoriesPaul E. McKenney
Scripts like kvm-check-branches.sh group runs under a single directory in resdir in order to allow easier retrospective analysis. However, they do this by letting kvm.sh create a directory as usual and then moving it after the run. This can be very confusing when looking at the results while kvm-check-branches.sh is running. This commit therefore enables --datestamp to hand subdirectories to kvm.sh. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-04torture: Make kvm.sh "--dryrun sched" summarize number of buildsPaul E. McKenney
Knowing the number of builds that kvm.sh will split a run into allows estimation of the duration of a test, give or take build duration. This commit therefore adds a line of output to "--dryrun sched" that gives the number of builds that will be run. This excludes "builds" for repeated scenarios that reuse an earlier build. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-04torture: Make kvm.sh "--dryrun sched" summarize number of batchesPaul E. McKenney
Knowing the number of batches that kvm.sh will split a run into allows estimation of the duration of a test, give or take the number of builds. This commit therefore adds a line of output to "--dryrun sched" that gives the number of batches that will be run. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-04torture: Make --kcsan specify lockdepPaul E. McKenney
The --kcsan argument to kvm.sh adds CONFIG_KCSAN_VERBOSE=y in order to get more detail from the KCSAN reports. However, this Kconfig option requires lockdep to be enabled. This commit therefore causes --kcsan to also enable lockdep. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2020-12-27Linux 5.11-rc1v5.11-rc1Linus Torvalds
2020-12-27proc mountinfo: make splice available againLinus Torvalds
Since commit 36e2c7421f02 ("fs: don't allow splice read/write without explicit ops") we've required that file operation structures explicitly enable splice support, rather than falling back to the default handlers. Most /proc files use the indirect 'struct proc_ops' to describe their file operations, and were fixed up to support splice earlier in commits 40be821d627c..b24c30c67863, but the mountinfo files interact with the VFS directly using their own 'struct file_operations' and got missed as a result. This adds the necessary support for splice to work for /proc/*/mountinfo and friends. Reported-by: Joan Bruguera Micó <joanbrugueram@gmail.com> Reported-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Link: https://bugzilla.kernel.org/show_bug.cgi?id=209971 Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-12-27Merge tag 'ntb-5.11' of git://github.com/jonmason/ntbLinus Torvalds
Pull NTB fixes from Jon Mason: "Bug fix for IDT NTB and Intel NTB LTR management support" * tag 'ntb-5.11' of git://github.com/jonmason/ntb: ntb: intel: add Intel NTB LTR vendor support for gen4 NTB ntb: idt: fix error check in ntb_hw_idt.c
2020-12-27Merge branch 'linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fixes from Herbert Xu: "Fix a number of autobuild failures due to missing Kconfig dependencies" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: qat - add CRYPTO_AES to Kconfig dependencies crypto: keembay - Add dependency on HAS_IOMEM crypto: keembay - CRYPTO_DEV_KEEMBAY_OCS_AES_SM4 should depend on ARCH_KEEMBAY
2020-12-27Merge tag 'objtool-urgent-2020-12-27' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull objtool fix from Ingo Molnar: "Fix a segfault that occurs when built with Clang" * tag 'objtool-urgent-2020-12-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: objtool: Fix seg fault with Clang non-section symbols
2020-12-27Merge tag 'locking-urgent-2020-12-27' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking fixes from Ingo Molnar: "Misc fixes/updates: - Fix static keys usage in module __init sections - Add separate MAINTAINERS entry for static branches/calls - Fix lockdep splat with CONFIG_PREEMPTIRQ_EVENTS=y tracing" * tag 'locking-urgent-2020-12-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: softirq: Avoid bad tracing / lockdep interaction jump_label/static_call: Add MAINTAINERS jump_label: Fix usage in module __init
2020-12-27Merge tag 'timers-urgent-2020-12-27' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fixes from Ingo Molnar: "Update/fix two CPU sanity checks in the hotplug and the boot code, and fix a typo in the Kconfig help text. [ Context: the first two commits are the result of an ongoing annotation+review work of (intentional) tick_do_timer_cpu() data races reported by KCSAN, but the annotations aren't fully cooked yet ]" * tag 'timers-urgent-2020-12-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: timekeeping: Fix spelling mistake in Kconfig "fullfill" -> "fulfill" tick/sched: Remove bogus boot "safety" check tick: Remove pointless cpu valid check in hotplug code
2020-12-27Merge tag 'sched-urgent-2020-12-27' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fix from Ingo Molnar: "Fix a context switch performance regression" * tag 'sched-urgent-2020-12-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched: Optimize finish_lock_switch()
2020-12-26mfd: ab8500-debugfs: Remove extraneous seq_putcLinus Torvalds
Commit c9a3c4e637ac ("mfd: ab8500-debugfs: Remove extraneous curly brace") removed a left-over curly brace that caused build failures, but Joe Perches points out that the subsequent 'seq_putc()' should also be removed, because the commit that caused all these problems already added the final '\n' to the seq_printf() above it. Reported-by: Joe Perches <joe@perches.com> Fixes: 886c8121659d ("mfd: ab8500-debugfs: Remove the racy fiddling with irq_desc") Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-12-25Merge tag 'pci-v5.11-fixes-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fixes from Bjorn Helgaas: - Fix a tegra enumeration regression (Rob Herring) - Fix a designware-host check that warned on *success*, not failure (Alexander Lobakin) * tag 'pci-v5.11-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: dwc: Fix inverted condition of DMA mask setup warning PCI: tegra: Fix host link initialization
2020-12-25mfd: ab8500-debugfs: Remove extraneous curly braceNathan Chancellor
Clang errors: drivers/mfd/ab8500-debugfs.c:1526:2: error: non-void function does not return a value [-Werror,-Wreturn-type] } ^ drivers/mfd/ab8500-debugfs.c:1528:2: error: expected identifier or '(' return 0; ^ drivers/mfd/ab8500-debugfs.c:1529:1: error: extraneous closing brace ('}') } ^ 3 errors generated. The cleanup in ab8500_interrupts_show left a curly brace around, remove it to fix the error. Fixes: 886c8121659d ("mfd: ab8500-debugfs: Remove the racy fiddling with irq_desc") Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-12-25PCI: dwc: Fix inverted condition of DMA mask setup warningAlexander Lobakin
Commit 660c486590aa ("PCI: dwc: Set 32-bit DMA mask for MSI target address allocation") added dma_mask_set() call to explicitly set 32-bit DMA mask for MSI message mapping, but for now it throws a warning on ret == 0, while dma_set_mask() returns 0 in case of success. Fix this by inverting the condition. [bhelgaas: join string to make it greppable] Fixes: 660c486590aa ("PCI: dwc: Set 32-bit DMA mask for MSI target address allocation") Link: https://lore.kernel.org/r/20201222150708.67983-1-alobakin@pm.me Signed-off-by: Alexander Lobakin <alobakin@pm.me> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-12-25PCI: tegra: Fix host link initializationRob Herring
Commit b9ac0f9dc8ea ("PCI: dwc: Move dw_pcie_setup_rc() to DWC common code") broke enumeration of downstream devices on Tegra: In non-working case (next-20201211): 0001:00:00.0 PCI bridge: NVIDIA Corporation Device 1ad2 (rev a1) 0001:01:00.0 SATA controller: Marvell Technology Group Ltd. Device 9171 (rev 13) 0005:00:00.0 PCI bridge: NVIDIA Corporation Device 1ad0 (rev a1) In working case (v5.10-rc7): 0001:00:00.0 PCI bridge: Molex Incorporated Device 1ad2 (rev a1) 0001:01:00.0 SATA controller: Marvell Technology Group Ltd. Device 9171 (rev 13) 0005:00:00.0 PCI bridge: Molex Incorporated Device 1ad0 (rev a1) 0005:01:00.0 PCI bridge: PLX Technology, Inc. Device 3380 (rev ab) 0005:02:02.0 PCI bridge: PLX Technology, Inc. Device 3380 (rev ab) 0005:03:00.0 USB controller: PLX Technology, Inc. Device 3380 (rev ab) The problem seems to be dw_pcie_setup_rc() is now called twice before and after the link up handling. The fix is to move Tegra's link up handling to .start_link() function like other DWC drivers. Tegra is a bit more complicated than others as it re-inits the whole DWC controller to retry the link. With this, the initialization ordering is restored to match the prior sequence. Fixes: b9ac0f9dc8ea ("PCI: dwc: Move dw_pcie_setup_rc() to DWC common code") Link: https://lore.kernel.org/r/20201218143905.1614098-1-robh@kernel.org Reported-by: Mian Yousaf Kaukab <ykaukab@suse.de> Tested-by: Mian Yousaf Kaukab <ykaukab@suse.de> Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Jonathan Hunter <jonathanh@nvidia.com> Cc: Vidya Sagar <vidyas@nvidia.com>
2020-12-25drm/amd/display: avoid uninitialized variable warningLinus Torvalds
clang (quite rightly) complains fairly loudly about the newly added mpc1_get_mpc_out_mux() function returning an uninitialized value if the 'opp_id' checks don't pass. This may not happen in practice, but the code really shouldn't return garbage if the sanity checks don't pass. So just initialize 'val' to zero to avoid the issue. Fixes: 110b055b2827 ("drm/amd/display: add getter routine to retrieve mpcc mux") Cc: Josip Pavic <Josip.Pavic@amd.com> Cc: Bindu Ramamurthy <bindu.r@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-12-25Merge tag 'perf-tools-2020-12-24' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull more perf tools updates from Arnaldo Carvalho de Melo: - Refactor 'perf stat' per CPU/socket/die/thread aggregation fixing use cases in ARM machines. - Fix memory leak when synthesizing SDT probes in 'perf probe'. - Update kernel header copies related to KVM, epol_pwait. msr-index and powerpc and s390 syscall tables. * tag 'perf-tools-2020-12-24' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (24 commits) perf probe: Fix memory leak when synthesizing SDT probes perf stat aggregation: Add separate thread member perf stat aggregation: Add separate core member perf stat aggregation: Add separate die member perf stat aggregation: Add separate socket member perf stat aggregation: Add separate node member perf stat aggregation: Start using cpu_aggr_id in map perf cpumap: Drop in cpu_aggr_map struct perf cpumap: Add new map type for aggregation perf stat: Replace aggregation ID with a struct perf cpumap: Add new struct for cpu aggregation perf cpumap: Use existing allocator to avoid using malloc perf tests: Improve topology test to check all aggregation types perf tools: Update s390's syscall.tbl copy from the kernel sources perf tools: Update powerpc's syscall.tbl copy from the kernel sources perf s390: Move syscall.tbl check into check-headers.sh perf powerpc: Move syscall.tbl check to check-headers.sh tools headers UAPI: Synch KVM's svm.h header with the kernel tools kvm headers: Update KVM headers from the kernel sources tools headers UAPI: Sync KVM's vmx.h header with the kernel sources ...
2020-12-25Merge branch 'for-5.11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux Pull coccinelle updates from Julia Lawall. * 'for-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux: scripts: coccicheck: Correct usage of make coccicheck coccinelle: update expiring email addresses coccinnelle: Remove ptr_ret script kbuild: do not use scripts/ld-version.sh for checking spatch version remove boolinit.cocci
2020-12-25genirq: Fix export of irq_to_desc() for powerpc KVMMichael Ellerman
Commit 64a1b95bb9fe ("genirq: Restrict export of irq_to_desc()") removed the export of irq_to_desc() unless powerpc KVM is being built, because there is still a use of irq_to_desc() in modular code there. However it used: #ifdef CONFIG_KVM_BOOK3S_64_HV Which doesn't work when that symbol is =m, leading to a build failure: ERROR: modpost: "irq_to_desc" [arch/powerpc/kvm/kvm-hv.ko] undefined! Fix it by checking for the definedness of the correct symbol which is CONFIG_KVM_BOOK3S_64_HV_MODULE. Fixes: 64a1b95bb9fe ("genirq: Restrict export of irq_to_desc()") Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-12-25Merge branch 'work.misc' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull misc vfs updates from Al Viro: "Assorted patches from previous cycle(s)..." * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fix hostfs_open() use of ->f_path.dentry Make sure that make_create_in_sticky() never sees uninitialized value of dir_mode fs: Kill DCACHE_DONTCACHE dentry even if DCACHE_REFERENCED is set fs: Handle I_DONTCACHE in iput_final() instead of generic_drop_inode() fs/namespace.c: WARN if mnt_count has become negative
2020-12-24Merge tag 'docs-5.11-2' of git://git.lwn.net/linuxLinus Torvalds
Pull documentation fixes from Jonathan Corbet: "A small set of late-arriving, small documentation fixes" * tag 'docs-5.11-2' of git://git.lwn.net/linux: docs: admin-guide: Fix default value of max_map_count in sysctl/vm.rst Documentation/submitting-patches: Document the SoB chain Documentation: process: Correct numbering docs: submitting-patches: Trivial - fix grammatical error
2020-12-24Merge tag 'ext4_for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 updates from Ted Ts'o: "Various bug fixes and cleanups for ext4; no new features this cycle" * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (29 commits) ext4: remove unnecessary wbc parameter from ext4_bio_write_page ext4: avoid s_mb_prefetch to be zero in individual scenarios ext4: defer saving error info from atomic context ext4: simplify ext4 error translation ext4: move functions in super.c ext4: make ext4_abort() use __ext4_error() ext4: standardize error message in ext4_protect_reserved_inode() ext4: remove redundant sb checksum recomputation ext4: don't remount read-only with errors=continue on reboot ext4: fix deadlock with fs freezing and EA inodes jbd2: add a helper to find out number of fast commit blocks ext4: make fast_commit.h byte identical with e2fsprogs/fast_commit.h ext4: fix fall-through warnings for Clang ext4: add docs about fast commit idempotence ext4: remove the unused EXT4_CURRENT_REV macro ext4: fix an IS_ERR() vs NULL check ext4: check for invalid block size early when mounting a file system ext4: fix a memory leak of ext4_free_data ext4: delete nonsensical (commented-out) code inside ext4_xattr_block_set() ext4: update ext4_data_block_valid related comments ...
2020-12-24Merge tag 'Smack-for-5.11-io_uring-fix' of ↵Linus Torvalds
git://github.com/cschaufler/smack-next Pull smack fix from Casey Schaufler: "Provide a fix for the incorrect handling of privilege in the face of io_uring's use of kernel threads. That invalidated an long standing assumption regarding the privilege of kernel threads. The fix is simple and safe. It was provided by Jens Axboe and has been tested" * tag 'Smack-for-5.11-io_uring-fix' of git://github.com/cschaufler/smack-next: Smack: Handle io_uring kernel thread privileges
2020-12-24Merge tag 'riscv-for-linus-5.11-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V fix from Palmer Dabbelt "Avoid trying to initialize memory regions outside the usable range" * tag 'riscv-for-linus-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: RISC-V: Fix usage of memblock_enforce_memory_limit
2020-12-24Merge tag 'powerpc-5.11-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: - Four commits fixing various things in the new C VDSO code - One fix for a 32-bit VMAP stack bug - Two minor build fixes Thanks to Cédric Le Goater, Christophe Leroy, and Will Springer. * tag 'powerpc-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/32: Fix vmap stack - Properly set r1 before activating MMU on syscall too powerpc/vdso: Fix DOTSYM for 32-bit LE VDSO powerpc/vdso: Don't pass 64-bit ABI cflags to 32-bit VDSO powerpc/vdso: Block R_PPC_REL24 relocations powerpc/smp: Add __init to init_big_cores() powerpc/time: Force inlining of get_tb() powerpc/boot: Fix build of dts/fsl
2020-12-24Merge tag 'irq-core-2020-12-23' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq updates from Thomas Gleixner: "This is the second attempt after the first one failed miserably and got zapped to unblock the rest of the interrupt related patches. A treewide cleanup of interrupt descriptor (ab)use with all sorts of racy accesses, inefficient and disfunctional code. The goal is to remove the export of irq_to_desc() to prevent these things from creeping up again" * tag 'irq-core-2020-12-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits) genirq: Restrict export of irq_to_desc() xen/events: Implement irq distribution xen/events: Reduce irq_info:: Spurious_cnt storage size xen/events: Only force affinity mask for percpu interrupts xen/events: Use immediate affinity setting xen/events: Remove disfunct affinity spreading xen/events: Remove unused bind_evtchn_to_irq_lateeoi() net/mlx5: Use effective interrupt affinity net/mlx5: Replace irq_to_desc() abuse net/mlx4: Use effective interrupt affinity net/mlx4: Replace irq_to_desc() abuse PCI: mobiveil: Use irq_data_get_irq_chip_data() PCI: xilinx-nwl: Use irq_data_get_irq_chip_data() NTB/msi: Use irq_has_action() mfd: ab8500-debugfs: Remove the racy fiddling with irq_desc pinctrl: nomadik: Use irq_has_action() drm/i915/pmu: Replace open coded kstat_irqs() copy drm/i915/lpe_audio: Remove pointless irq_to_desc() usage s390/irq: Use irq_desc_kstat_cpu() in show_msi_interrupt() parisc/irq: Use irq_desc_kstat_cpu() in show_interrupts() ...
2020-12-24Merge tag 'efi_updates_for_v5.11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull EFI updates from Borislav Petkov: "These got delayed due to a last minute ia64 build issue which got fixed in the meantime. EFI updates collected by Ard Biesheuvel: - Don't move BSS section around pointlessly in the x86 decompressor - Refactor helper for discovering the EFI secure boot mode - Wire up EFI secure boot to IMA for arm64 - Some fixes for the capsule loader - Expose the RT_PROP table via the EFI test module - Relax DT and kernel placement restrictions on ARM with a few followup fixes: - fix the build breakage on IA64 caused by recent capsule loader changes - suppress a type mismatch build warning in the expansion of EFI_PHYS_ALIGN on ARM" * tag 'efi_updates_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: efi: arm: force use of unsigned type for EFI_PHYS_ALIGN efi: ia64: disable the capsule loader efi: stub: get rid of efi_get_max_fdt_addr() efi/efi_test: read RuntimeServicesSupported efi: arm: reduce minimum alignment of uncompressed kernel efi: capsule: clean scatter-gather entries from the D-cache efi: capsule: use atomic kmap for transient sglist mappings efi: x86/xen: switch to efi_get_secureboot_mode helper arm64/ima: add ima_arch support ima: generalize x86/EFI arch glue for other EFI architectures efi: generalize efi_get_secureboot efi/libstub: EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER should not default to yes efi/x86: Only copy the compressed kernel image in efi_relocate_kernel() efi/libstub/x86: simplify efi_is_native()