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2015-11-10Merge branch 'kbuild' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kbuild update from Michal Marek: "The kbuild branch for v4.4-rc1 only has one commit: A new make kselftest-clean target cleans tools/testing/selftests" * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: kselftest: add kselftest-clean rule
2015-11-05Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull KVM updates from Paolo Bonzini: "First batch of KVM changes for 4.4. s390: A bunch of fixes and optimizations for interrupt and time handling. PPC: Mostly bug fixes. ARM: No big features, but many small fixes and prerequisites including: - a number of fixes for the arch-timer - introducing proper level-triggered semantics for the arch-timers - a series of patches to synchronously halt a guest (prerequisite for IRQ forwarding) - some tracepoint improvements - a tweak for the EL2 panic handlers - some more VGIC cleanups getting rid of redundant state x86: Quite a few changes: - support for VT-d posted interrupts (i.e. PCI devices can inject interrupts directly into vCPUs). This introduces a new component (in virt/lib/) that connects VFIO and KVM together. The same infrastructure will be used for ARM interrupt forwarding as well. - more Hyper-V features, though the main one Hyper-V synthetic interrupt controller will have to wait for 4.5. These will let KVM expose Hyper-V devices. - nested virtualization now supports VPID (same as PCID but for vCPUs) which makes it quite a bit faster - for future hardware that supports NVDIMM, there is support for clflushopt, clwb, pcommit - support for "split irqchip", i.e. LAPIC in kernel + IOAPIC/PIC/PIT in userspace, which reduces the attack surface of the hypervisor - obligatory smattering of SMM fixes - on the guest side, stable scheduler clock support was rewritten to not require help from the hypervisor" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (123 commits) KVM: VMX: Fix commit which broke PML KVM: x86: obey KVM_X86_QUIRK_CD_NW_CLEARED in kvm_set_cr0() KVM: x86: allow RSM from 64-bit mode KVM: VMX: fix SMEP and SMAP without EPT KVM: x86: move kvm_set_irq_inatomic to legacy device assignment KVM: device assignment: remove pointless #ifdefs KVM: x86: merge kvm_arch_set_irq with kvm_set_msi_inatomic KVM: x86: zero apic_arb_prio on reset drivers/hv: share Hyper-V SynIC constants with userspace KVM: x86: handle SMBASE as physical address in RSM KVM: x86: add read_phys to x86_emulate_ops KVM: x86: removing unused variable KVM: don't pointlessly leave KVM_COMPAT=y in non-KVM configs KVM: arm/arm64: Merge vgic_set_lr() and vgic_sync_lr_elrsr() KVM: arm/arm64: Clean up vgic_retire_lr() and surroundings KVM: arm/arm64: Optimize away redundant LR tracking KVM: s390: use simple switch statement as multiplexer KVM: s390: drop useless newline in debugging data KVM: s390: SCA must not cross page boundaries KVM: arm: Do not indent the arguments of DECLARE_BITMAP ...
2015-11-05Merge tag 'docs-for-linus' of git://git.lwn.net/linuxLinus Torvalds
Pull documentation update from Jon Corbet: "There is a nice new document from Neil on how pathname lookups work and some new CAN driver documentation. Beyond that, we have kernel-doc fixes, a bit more work to support reproducible builds, and the usual collection of small fixes" * tag 'docs-for-linus' of git://git.lwn.net/linux: (34 commits) Documentation: add new description of path-name lookup. Documentation/vm/slub.txt: document slabinfo-gnuplot.sh Doc: ABI/stable: Fix typo in ABI/stable doc: Clarify that nmi_watchdog param is for hardlockups Typo correction for description in gpio document. DocBook: Fix kernel-doc to be case-insensitive for private: kernel-docs.txt: update kernelnewbies reference Doc:kvm: Fix typo in Doc/virtual/kvm Documentation/Changes: Add bc in "Current Minimal Requirements" section Documentation/email-clients.txt: remove trailing whitespace DocBook: Use a fixed encoding for output MAINTAINERS: The docs tree has moved Docs/kernel-parameters: Add earlycon devicetree usage SubmittingPatches: make Subject examples match the de facto standard Documentation: gpio: mention that <function>-gpio has been deprecated Documentation: cgroups: just fix a few typos Documentation: Update kselftest.txt Documentation: DMA API: Be more explicit that nents is always the same Documentation: Update the default value of crashkernel low zram: update documentation ...
2015-11-01Linux 4.3Linus Torvalds
2015-10-25Linux 4.3-rc7Linus Torvalds
2015-10-18Linux 4.3-rc6Linus Torvalds
2015-10-11Linux 4.3-rc5Linus Torvalds
2015-10-08kselftest: add kselftest-clean ruleWang Long
We use $make TARGETS="size timers" kselftest to build and run selftests. but there is no rule for us to clean the kselftest generated files. This patch add the rules, for example: $ make TARGETS="size timers" kselftest-clean can clean all kselftest generated files. Signed-off-by: Wang Long <long.wanglong@huawei.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Michal Marek <mmarek@suse.com>
2015-10-04Linux 4.3-rc4Linus Torvalds
2015-10-01virt: Add virt directory to the top MakefileFeng Wu
We need to build files in virt/lib/, which are now used by KVM and VFIO, so add virt directory to the top Makefile. Signed-off-by: Feng Wu <feng.wu@intel.com> Acked-by: Michal Marek <mmarek@suse.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-28DocBook: Use a fixed encoding for outputBen Hutchings
Currently the encoding of documents generated by DocBook depends on the current locale. Make the output reproducible independently of the locale, by setting the encoding to UTF-8 (LC_CTYPE=C.UTF-8) by preference, or ASCII (LC_CTYPE=C) as a fallback. LC_CTYPE can normally be overridden by LC_ALL, but the top-level Makefile unsets that. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> [jc: added check-lc_ctype to .gitignore] Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-09-27Linux 4.3-rc3Linus Torvalds
2015-09-20Linux 4.3-rc2Linus Torvalds
2015-09-12Linux 4.3-rc1Linus Torvalds
2015-09-08Merge branch 'misc' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull misc kbuild updates from Michal Marek: - deb-pkg: + module signing fix + dtb files are added to the package + do not require `hostname -f` to work during build + make deb-pkg generates a source package, bindeb-pkg has been added to only generate the binary package - rpm-pkg packages /lib/modules as well - new coccinelle patch and updates to existing ones - new stackusage & stackdelta script to collect and compare stack usage info (using gcc's -fstack-usage) - make tags understands trace_*_rcuidle() macros - .gitignore updates, misc cleanups * 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: (27 commits) deb-pkg: add source package package/Makefile: move source tar creation to a function scripts: add stackdelta script kbuild: remove *.su files generated by -fstack-usage .gitignore: add *.su pattern scripts: add stackusage script kbuild: avoid listing /lib/modules in kernel spec file fallback to hostname in scripts/package/builddeb coccinelle: api: extend spatch for dropping unnecessary owner deb-pkg: simplify directory creation scripts/tags.sh: Include trace_*_rcuidle() in tags scripts/package/Makefile: rpmbuild is needed for rpm targets Kbuild: Add ID files to .gitignore gitignore: Add MIPS vmlinux.32 to the list coccinelle: simple_return: Add a blank line coccinelle: irqf_oneshot.cocci: Improve the generated commit log coccinelle: api: add vma_pages.cocci scripts/coccinelle/misc/irqf_oneshot.cocci: Fix grammar scripts/coccinelle/misc/semicolon.cocci: Use imperative mood coccinelle: simple_open: Use imperative mood ...
2015-09-08Merge branch 'kbuild' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull core kbuild updates from Michal Marek: - modpost portability fix - linker script fix - genksyms segfault fix - fixdep cleanup - fix for clang detection * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: kbuild: Fix clang detection kbuild: fixdep: drop meaningless hash table initialization kbuild: fixdep: optimize code slightly genksyms: Regenerate parser genksyms: Duplicate function pointer type definitions segfault kbuild: Fix .text.unlikely placement Avoid conflict with host definitions when cross-compiling
2015-09-08Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull security subsystem updates from James Morris: "Highlights: - PKCS#7 support added to support signed kexec, also utilized for module signing. See comments in 3f1e1bea. ** NOTE: this requires linking against the OpenSSL library, which must be installed, e.g. the openssl-devel on Fedora ** - Smack - add IPv6 host labeling; ignore labels on kernel threads - support smack labeling mounts which use binary mount data - SELinux: - add ioctl whitelisting (see http://kernsec.org/files/lss2015/vanderstoep.pdf) - fix mprotect PROT_EXEC regression caused by mm change - Seccomp: - add ptrace options for suspend/resume" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (57 commits) PKCS#7: Add OIDs for sha224, sha284 and sha512 hash algos and use them Documentation/Changes: Now need OpenSSL devel packages for module signing scripts: add extract-cert and sign-file to .gitignore modsign: Handle signing key in source tree modsign: Use if_changed rule for extracting cert from module signing key Move certificate handling to its own directory sign-file: Fix warning about BIO_reset() return value PKCS#7: Add MODULE_LICENSE() to test module Smack - Fix build error with bringup unconfigured sign-file: Document dependency on OpenSSL devel libraries PKCS#7: Appropriately restrict authenticated attributes and content type KEYS: Add a name for PKEY_ID_PKCS7 PKCS#7: Improve and export the X.509 ASN.1 time object decoder modsign: Use extract-cert to process CONFIG_SYSTEM_TRUSTED_KEYS extract-cert: Cope with multiple X.509 certificates in a single file sign-file: Generate CMS message as signature instead of PKCS#7 PKCS#7: Support CMS messages also [RFC5652] X.509: Change recorded SKID & AKID to not include Subject or Issuer PKCS#7: Check content type and versions MAINTAINERS: The keyrings mailing list has moved ...
2015-09-04kbuild: Fix clang detectionMichal Marek
We cannot detect clang before including the arch Makefile, because that can set the default cross compiler. We also cannot detect clang after including the arch Makefile, because powerpc wants to know about clang. Solve this by using an deferred variable. This costs us a few shell invocations, but this is only a constant number. Reported-by: Behan Webster <behanw@converseincode.com> Reported-by: Anton Blanchard <anton@samba.org> Signed-off-by: Michal Marek <mmarek@suse.com>
2015-08-30Linux 4.2Linus Torvalds
2015-08-28kbuild: remove *.su files generated by -fstack-usageRasmus Villemoes
Make sure 'make clean' removes *.su files generated by the gcc option -fstack-usage. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Michal Marek <mmarek@suse.com>
2015-08-23Linux 4.2-rc8Linus Torvalds
2015-08-16Linux 4.2-rc7Linus Torvalds
2015-08-14modsign: Handle signing key in source treeDavid Woodhouse
Since commit 1329e8cc69 ("modsign: Extract signing cert from CONFIG_MODULE_SIG_KEY if needed"), the build system has carefully coped with the signing key being specified as a relative path in either the source or or the build trees. However, the actual signing of modules has not worked if the filename is relative to the source tree. Fix that by moving the config_filename helper into scripts/Kbuild.include so that it can be used from elsewhere, and then using it in the top-level Makefile to find the signing key file. Kill the intermediate $(MODPUBKEY) and $(MODSECKEY) variables too, while we're at it. There's no need for them. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: David Howells <dhowells@redhat.com>
2015-08-14Move certificate handling to its own directoryDavid Howells
Move certificate handling out of the kernel/ directory and into a certs/ directory to get all the weird stuff in one place and move the generated signing keys into this directory. Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: David Woodhouse <David.Woodhouse@intel.com>
2015-08-09Linux 4.2-rc6Linus Torvalds
2015-08-07modsign: Use single PEM file for autogenerated keyDavid Woodhouse
The current rule for generating signing_key.priv and signing_key.x509 is a classic example of a bad rule which has a tendency to break parallel make. When invoked to create *either* target, it generates the other target as a side-effect that make didn't predict. So let's switch to using a single file signing_key.pem which contains both key and certificate. That matches what we do in the case of an external key specified by CONFIG_MODULE_SIG_KEY anyway, so it's also slightly cleaner. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: David Howells <dhowells@redhat.com>
2015-08-07modsign: Allow external signing key to be specifiedDavid Woodhouse
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: David Howells <dhowells@redhat.com>
2015-08-07MODSIGN: Use PKCS#7 messages as module signaturesDavid Howells
Move to using PKCS#7 messages as module signatures because: (1) We have to be able to support the use of X.509 certificates that don't have a subjKeyId set. We're currently relying on this to look up the X.509 certificate in the trusted keyring list. (2) PKCS#7 message signed information blocks have a field that supplies the data required to match with the X.509 certificate that signed it. (3) The PKCS#7 certificate carries fields that specify the digest algorithm used to generate the signature in a standardised way and the X.509 certificates specify the public key algorithm in a standardised way - so we don't need our own methods of specifying these. (4) We now have PKCS#7 message support in the kernel for signed kexec purposes and we can make use of this. To make this work, the old sign-file script has been replaced with a program that needs compiling in a previous patch. The rules to build it are added here. Signed-off-by: David Howells <dhowells@redhat.com> Tested-by: Vivek Goyal <vgoyal@redhat.com>
2015-08-04Merge branch 'rc-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kbuild fixes from Michal Marek: "Two fixes for kbuild: - The new ARCH_{CPP,A,C}FLAGS variables are reset before including the arch Makefile - Fix calling make modules_install twice when module compression is enabled" * 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: Makefile: Force gzip and xz on module install kbuild: Do not pick up ARCH_{CPP,A,C}FLAGS from the environment
2015-08-02Linux 4.2-rc5Linus Torvalds
2015-07-26Linux 4.2-rc4Linus Torvalds
2015-07-22Makefile: Force gzip and xz on module installJason A. Donenfeld
Running `make modules_install` ordinarily will overwrite existing modules. This is the desired behavior, and is how pretty much every other `make install` target works. However, if CONFIG_MODULE_COMPRESS is enabled, modules are passed through gzip and xz which then do the file writing. Both gzip and xz will error out if the file already exists, unless -f is passed. This patch adds -f so that the behavior is uniform. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Michal Marek <mmarek@suse.com>
2015-07-22kbuild: Do not pick up ARCH_{CPP,A,C}FLAGS from the environmentMichal Marek
Initialize the ARCH_* overrides before including the arch Makefile, to avoid picking up the values from the environment. The variables can still be overriden on the make command line, but this won't happen by accident. Signed-off-by: Michal Marek <mmarek@suse.com>
2015-07-19Linux 4.2-rc3Linus Torvalds
2015-07-15Merge tag 'arc-v4.2-rc3-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc Pull ARC fixes from Vineet Gupta: - Makefile changes (top-level+ARC) reinstates -O3 builds (regression since 3.16) - IDU intc related fixes, IRQ affinity - patch to make bitops safer for ARC - perf fix from Alexey to remove signed PC braino - Futex backend gets llock/scond support * tag 'arc-v4.2-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: ARCv2: support HS38 releases ARC: make sure instruction_pointer() returns unsigned value ARC: slightly refactor macros for boot logging ARC: Add llock/scond to futex backend arc:irqchip: prepare for drivers/irqchip/irqchip.h removal ARC: Make ARC bitops "safer" (add anti-optimization) ARCv2: [axs103] bump CPU frequency from 75 to 90 MHZ ARCv2: intc: IDU: Fix potential race in installing a chained IRQ handler ARCv2: intc: IDU: support irq affinity ARC: fix unused var wanring ARC: Don't memzero twice in dma_alloc_coherent for __GFP_ZERO ARC: Override toplevel default -O2 with -O3 kbuild: Allow arch Makefiles to override {cpp,ld,c}flags ARCv2: guard SLC DMA ops with spinlock ARC: Kconfig: better way to disable ARC_HAS_LLSC for ARC_CPU_750D
2015-07-12Linux 4.2-rc2Linus Torvalds
2015-07-06kbuild: Allow arch Makefiles to override {cpp,ld,c}flagsMichal Marek
Since commit a1c48bb1 (Makefile: Fix unrecognized cross-compiler command line options), the arch Makefile is included earlier by the main Makefile, preventing the arc architecture to set its -O3 compiler option. Since there might be more use cases for an arch Makefile to fine-tune the options, add support for ARCH_CPPFLAGS, ARCH_AFLAGS and ARCH_CFLAGS variables that are appended to the respective kbuild variables. The user still has the final say via the KCPPFLAGS, KAFLAGS and KCFLAGS variables. Reported-by: Vineet Gupta <Vineet.Gupta1@synopsys.com> Cc: stable@vger.kernel.org # 3.16+ Signed-off-by: Michal Marek <mmarek@suse.com>
2015-07-05Linux 4.2-rc1Linus Torvalds
2015-07-02Merge branch 'kbuild' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kbuild updates from Michal Marek: "Just a few kbuild core commits this time: - kallsyms fix for CONFIG_XIP_KERNEL - bashisms in scripts/link-vmlinux.sh fixed - workaround to make DEBUG_INFO_REDUCED more useful yet still space efficient - clang is not wrongly detected when cross-compiling" * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: kbuild: include core debug info when DEBUG_INFO_REDUCED scripts: link-vmlinux: Don't pass page offset to kallsyms if XIP Kernel scripts: fix link-vmlinux.sh bash-ism Makefile: Fix detection of clang when cross-compiling
2015-06-22Merge branch 'perf-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf updates from Ingo Molnar: "Kernel side changes mostly consist of work on x86 PMU drivers: - x86 Intel PT (hardware CPU tracer) improvements (Alexander Shishkin) - x86 Intel CQM (cache quality monitoring) improvements (Thomas Gleixner) - x86 Intel PEBSv3 support (Peter Zijlstra) - x86 Intel PEBS interrupt batching support for lower overhead sampling (Zheng Yan, Kan Liang) - x86 PMU scheduler fixes and improvements (Peter Zijlstra) There's too many tooling improvements to list them all - here are a few select highlights: 'perf bench': - Introduce new 'perf bench futex' benchmark: 'wake-parallel', to measure parallel waker threads generating contention for kernel locks (hb->lock). (Davidlohr Bueso) 'perf top', 'perf report': - Allow disabling/enabling events dynamicaly in 'perf top': a 'perf top' session can instantly become a 'perf report' one, i.e. going from dynamic analysis to a static one, returning to a dynamic one is possible, to toogle the modes, just press 'f' to 'freeze/unfreeze' the sampling. (Arnaldo Carvalho de Melo) - Make Ctrl-C stop processing on TUI, allowing interrupting the load of big perf.data files (Namhyung Kim) 'perf probe': (Masami Hiramatsu) - Support glob wildcards for function name - Support $params special probe argument: Collect all function arguments - Make --line checks validate C-style function name. - Add --no-inlines option to avoid searching inline functions - Greatly speed up 'perf probe --list' by caching debuginfo. - Improve --filter support for 'perf probe', allowing using its arguments on other commands, as --add, --del, etc. 'perf sched': - Add option in 'perf sched' to merge like comms to lat output (Josef Bacik) Plus tons of infrastructure work - in particular preparation for upcoming threaded perf report support, but also lots of other work - and fixes and other improvements. See (much) more details in the shortlog and in the git log" * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (305 commits) perf tools: Configurable per thread proc map processing time out perf tools: Add time out to force stop proc map processing perf report: Fix sort__sym_cmp to also compare end of symbol perf hists browser: React to unassigned hotkey pressing perf top: Tell the user how to unfreeze events after pressing 'f' perf hists browser: Honour the help line provided by builtin-{top,report}.c perf hists browser: Do not exit when 'f' is pressed in 'report' mode perf top: Replace CTRL+z with 'f' as hotkey for enable/disable events perf annotate: Rename source_line_percent to source_line_samples perf annotate: Display total number of samples with --show-total-period perf tools: Ensure thread-stack is flushed perf top: Allow disabling/enabling events dynamicly perf evlist: Add toggle_enable() method perf trace: Fix race condition at the end of started workloads perf probe: Speed up perf probe --list by caching debuginfo perf probe: Show usage even if the last event is skipped perf tools: Move libtraceevent dynamic list to separated LDFLAGS variable perf tools: Fix a problem when opening old perf.data with different byte order perf tools: Ignore .config-detected in .gitignore perf probe: Fix to return error if no probe is added ...
2015-06-21Linux 4.1Linus Torvalds
2015-06-14Linux 4.1-rc8Linus Torvalds
2015-06-07Linux 4.1-rc7Linus Torvalds
2015-05-31Linux 4.1-rc6Linus Torvalds
2015-05-27Merge branch 'perf/urgent' into perf/core, before applying dependent patchesIngo Molnar
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-05-24Linux 4.1-rc5Linus Torvalds
2015-05-18Linux 4.1-rc4Linus Torvalds
2015-05-10Linux 4.1-rc3Linus Torvalds
2015-05-06Merge tag 'perf-core-for-mingo-3' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: User visible changes: - Improve --filter support for 'perf probe', allowing using its arguments on other commands, as --add, --del, etc (Masami Hiramatsu) - Show warning when running 'perf kmem stat' on a unsuitable perf.data file, i.e. one with events that are not the ones required for the stat variant used (Namhyung Kim). Infrastructure changes: - Auxtrace support patches, paving the way to support Intel PT and BTS (Adrian Hunter) - hists browser (top, report) refactorings (Namhyung Kim) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-05-03Linux 4.1-rc2Linus Torvalds