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2020-06-11KVM: selftests: Don't probe KVM_CAP_HYPERV_ENLIGHTENED_VMCS when nested VMX ↵Vitaly Kuznetsov
is unsupported KVM_CAP_HYPERV_ENLIGHTENED_VMCS will be reported as supported even when nested VMX is not, fix evmcs_test/hyperv_cpuid tests to check for both. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20200610135847.754289-3-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-11KVM: selftests: do not substitute SVM/VMX check with KVM_CAP_NESTED_STATE checkVitaly Kuznetsov
state_test/smm_test use KVM_CAP_NESTED_STATE check as an indicator for nested VMX/SVM presence and this is incorrect. Check for the required features dirrectly. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20200610135847.754289-2-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-11spi: tools: Make default_tx/rx and input_tx staticQing Zhang
Fix the following sparse warning: ./spidev_test.c:50:9: warning: symbol 'default_tx' was not declared. Should it be static? ./spidev_test.c:59:9: warning: symbol 'default_rx' was not declared. Should it be static? ./spidev_test.c:60:6: warning: symbol 'input_tx' was not declared. Should it be static? Signed-off-by: Qing Zhang <zhangqing@loongson.cn> Link: https://lore.kernel.org/r/1591880212-13479-1-git-send-email-zhangqing@loongson.cn Signed-off-by: Mark Brown <broonie@kernel.org>
2020-06-11tools, bpftool: Fix memory leak in codegen error casesTobias Klauser
Free the memory allocated for the template on error paths in function codegen. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Andrii Nakryiko <andriin@fb.com> Link: https://lore.kernel.org/bpf/20200610130804.21423-1-tklauser@distanz.ch
2020-06-11selftests/bpf: Add cgroup_skb/egress test for load_bytes_relativeYiFei Zhu
When cgroup_skb/egress triggers the MAC header is not set. Added a test that asserts reading MAC header is a -EFAULT but NET header succeeds. The test result from within the eBPF program is stored in an 1-element array map that the userspace then reads and asserts on. Another assertion is added that reading from a large offset, past the end of packet, returns -EFAULT. Signed-off-by: YiFei Zhu <zhuyifei@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Stanislav Fomichev <sdf@google.com> Link: https://lore.kernel.org/bpf/9028ccbea4385a620e69c0a104f469ffd655c01e.1591812755.git.zhuyifei@google.com
2020-06-10khugepaged: selftests: fix timeout condition in wait_for_scan()Dan Carpenter
The loop exits with "timeout" set to -1 and not to 0 so the test needs to be fixed. Fixes: e7b592f6caca ("khugepaged: add self test") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Shuah Khan <shuah@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Zi Yan <ziy@nvidia.com> Cc: William Kucharski <william.kucharski@oracle.com> Cc: Yang Shi <yang.shi@linux.alibaba.com> Cc: John Hubbard <jhubbard@nvidia.com> Link: http://lkml.kernel.org/r/20200605110736.GH978434@mwanda Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-10Merge tag 'acpi-5.8-rc1-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more ACPI updates from Rafael Wysocki: "Update the ACPICA code in the kernel to upstream revision 20200528 with the following changes: - Remove some dead code from the acpidump utility (Bob Moore) - Add new OperationRegion subtype keyword PlatformRtMechanism to the compiler (Erik Kaneda)" * tag 'acpi-5.8-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPICA: Update version to 20200528 ACPICA: iASL: add new OperationRegion subtype keyword PlatformRtMechanism ACPICA: acpidump: Removed dead code from oslinuxtbl.c
2020-06-10Merge branch 'acpica'Rafael J. Wysocki
* acpica: ACPICA: Update version to 20200528 ACPICA: iASL: add new OperationRegion subtype keyword PlatformRtMechanism ACPICA: acpidump: Removed dead code from oslinuxtbl.c
2020-06-10perf pmu: Remove unused declarationIan Rogers
This avoids multiple declarations if the flex header is included. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: John Garry <john.garry@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20200609234344.3795-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-06-10tools, bpf: Do not force gcc as CCBrett Mastbergen
This allows transparent cross-compilation with CROSS_COMPILE by relying on 7ed1c1901fe5 ("tools: fix cross-compile var clobbering"). Same change was applied to tools/bpf/bpftool/Makefile in 9e88b9312acb ("tools: bpftool: do not force gcc as CC"). Signed-off-by: Brett Mastbergen <brett.mastbergen@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20200609213506.3299-1-brett.mastbergen@gmail.com
2020-06-10libbpf: Handle GCC noreturn-turned-volatile quirkAndrii Nakryiko
Handle a GCC quirk of emitting extra volatile modifier in DWARF (and subsequently preserved in BTF by pahole) for function pointers marked as __attribute__((noreturn)). This was the way to mark such functions before GCC 2.5 added noreturn attribute. Drop such func_proto modifiers, similarly to how it's done for array (also to handle GCC quirk/bug). Such volatile attribute is emitted by GCC only, so existing selftests can't express such test. Simple repro is like this (compiled with GCC + BTF generated by pahole): struct my_struct { void __attribute__((noreturn)) (*fn)(int); }; struct my_struct a; Without this fix, output will be: struct my_struct { voidvolatile (*fn)(int); }; With the fix: struct my_struct { void (*fn)(int); }; Fixes: 351131b51c7a ("libbpf: add btf_dump API for BTF-to-C conversion") Reported-by: Jean-Philippe Brucker <jean-philippe@linaro.org> Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Jean-Philippe Brucker <jean-philippe@linaro.org> Link: https://lore.kernel.org/bpf/20200610052335.2862559-1-andriin@fb.com
2020-06-10libbpf: Define __WORDSIZE if not availableArnaldo Carvalho de Melo
Some systems, such as Android, don't have a define for __WORDSIZE, do it in terms of __SIZEOF_LONG__, as done in perf since 2012: http://git.kernel.org/torvalds/c/3f34f6c0233ae055b5 For reference: https://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html I build tested it here and Andrii did some Travis CI build tests too. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Andrii Nakryiko <andriin@fb.com> Link: https://lore.kernel.org/bpf/20200608161150.GA3073@kernel.org
2020-06-09selftests/net: in rxtimestamp getopt_long needs terminating null entrytannerlove
getopt_long requires the last element to be filled with zeros. Otherwise, passing an unrecognized option can cause a segfault. Fixes: 16e781224198 ("selftests/net: Add a test to validate behavior of rx timestamps") Signed-off-by: Tanner Love <tannerlove@google.com> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-09bpf: Selftests and tools use struct bpf_devmap_val from uapiJesper Dangaard Brouer
Sync tools uapi bpf.h header file and update selftests that use struct bpf_devmap_val. Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/159170951195.2102545.1833108712124273987.stgit@firesoul
2020-06-09bpf: cgroup: Allow multi-attach program to replace itselfLorenz Bauer
When using BPF_PROG_ATTACH to attach a program to a cgroup in BPF_F_ALLOW_MULTI mode, it is not possible to replace a program with itself. This is because the check for duplicate programs doesn't take the replacement program into account. Replacing a program with itself might seem weird, but it has some uses: first, it allows resetting the associated cgroup storage. Second, it makes the API consistent with the non-ALLOW_MULTI usage, where it is possible to replace a program with itself. Third, it aligns BPF_PROG_ATTACH with bpf_link, where replacing itself is also supported. Sice this code has been refactored a few times this change will only apply to v5.7 and later. Adjustments could be made to commit 1020c1f24a94 ("bpf: Simplify __cgroup_bpf_attach") and commit d7bf2c10af05 ("bpf: allocate cgroup storage entries on attaching bpf programs") as well as commit 324bda9e6c5a ("bpf: multi program support for cgroup+bpf") Fixes: af6eea57437a ("bpf: Implement bpf_link-based cgroup BPF program attachment") Signed-off-by: Lorenz Bauer <lmb@cloudflare.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200608162202.94002-1-lmb@cloudflare.com
2020-06-09Merge tag 'trace-v5.8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: "No new features this release. Mostly clean ups, restructuring and documentation. - Have ftrace_bug() show ftrace errors before the WARN, as the WARN will reboot the box before the error messages are printed if panic_on_warn is set. - Have traceoff_on_warn disable tracing sooner (before prints) - Write a message to the trace buffer that its being disabled when disable_trace_on_warning() is set. - Separate out synthetic events from histogram code to let it be used by other parts of the kernel. - More documentation on histogram design. - Other small fixes and clean ups" * tag 'trace-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing: Remove obsolete PREEMPTIRQ_EVENTS kconfig option tracing/doc: Fix ascii-art in histogram-design.rst tracing: Add a trace print when traceoff_on_warning is triggered ftrace,bug: Improve traceoff_on_warn selftests/ftrace: Distinguish between hist and synthetic event checks tracing: Move synthetic events to a separate file tracing: Fix events.rst section numbering tracing/doc: Fix typos in histogram-design.rst tracing: Add hist_debug trace event files for histogram debugging tracing: Add histogram-design document tracing: Check state.disabled in synth event trace functions tracing/probe: reverse arguments to list_add tools/bootconfig: Add a summary of test cases and return error ftrace: show debugging information when panic_on_warn set
2020-06-09Merge tag 'linux-kselftest-kunit-5.8-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull Kunit updates from Shuah Khan: "This consists of: - Several config fragment fixes from Anders Roxell to improve test coverage. - Improvements to kunit run script to use defconfig as default and restructure the code for config/build/exec/parse from Vitor Massaru Iha and David Gow. - Miscellaneous documentation warn fix" * tag 'linux-kselftest-kunit-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: security: apparmor: default KUNIT_* fragments to KUNIT_ALL_TESTS fs: ext4: default KUNIT_* fragments to KUNIT_ALL_TESTS drivers: base: default KUNIT_* fragments to KUNIT_ALL_TESTS lib: Kconfig.debug: default KUNIT_* fragments to KUNIT_ALL_TESTS kunit: default KUNIT_* fragments to KUNIT_ALL_TESTS kunit: Kconfig: enable a KUNIT_ALL_TESTS fragment kunit: Fix TabError, remove defconfig code and handle when there is no kunitconfig kunit: use KUnit defconfig by default kunit: use --build_dir=.kunit as default Documentation: test.h - fix warnings kunit: kunit_tool: Separate out config/build/exec/parse
2020-06-09Merge tag 'linux-kselftest-5.8-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest updates from Shuah Khan: "This consists of: - Several fixes from Masami Hiramatsu to improve coverage for lib and sysctl tests. - Clean up to vdso test and a new test for getcpu() from Mark Brown. - Add new gen_tar selftests Makefile target generate selftest package running "make gen_tar" in selftests directory from Veronika Kabatova. - Other miscellaneous fixes to timens, exec, tpm2 tests" * tag 'linux-kselftest-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests/sysctl: Make sysctl test driver as a module selftests/sysctl: Fix to load test_sysctl module lib: Make test_sysctl initialized as module lib: Make prime number generator independently selectable selftests/ftrace: Return unsupported if no error_log file selftests/ftrace: Use printf for backslash included command selftests/timens: handle a case when alarm clocks are not supported Kernel selftests: Add check if TPM devices are supported selftests: vdso: Add a selftest for vDSO getcpu() selftests: vdso: Use a header file to prototype parse_vdso API selftests: vdso: Rename vdso_test to vdso_test_gettimeofday selftests/exec: Verify execve of non-regular files fail selftests: introduce gen_tar Makefile target
2020-06-09kallsyms/printk: add loglvl to print_ip_sym()Dmitry Safonov
Patch series "Add log level to show_stack()", v3. Add log level argument to show_stack(). Done in three stages: 1. Introducing show_stack_loglvl() for every architecture 2. Migrating old users with an explicit log level 3. Renaming show_stack_loglvl() into show_stack() Justification: - It's a design mistake to move a business-logic decision into platform realization detail. - I have currently two patches sets that would benefit from this work: Removing console_loglevel jumps in sysrq driver [1] Hung task warning before panic [2] - suggested by Tetsuo (but he probably didn't realise what it would involve). - While doing (1), (2) the backtraces were adjusted to headers and other messages for each situation - so there won't be a situation when the backtrace is printed, but the headers are missing because they have lesser log level (or the reverse). - As the result in (2) plays with console_loglevel for kdb are removed. The least important for upstream, but maybe still worth to note that every company I've worked in so far had an off-list patch to print backtrace with the needed log level (but only for the architecture they cared about). If you have other ideas how you will benefit from show_stack() with a log level - please, reply to this cover letter. See also discussion on v1: https://lore.kernel.org/linux-riscv/20191106083538.z5nlpuf64cigxigh@pathway.suse.cz/ This patch (of 50): print_ip_sym() needs to have a log level parameter to comply with other parts being printed. Otherwise, half of the expected backtrace would be printed and other may be missing with some logging level. The following callee(s) are using now the adjusted log level: - microblaze/unwind: the same level as headers & userspace unwind. Note that pr_debug()'s there are for debugging the unwinder itself. - nds32/traps: symbol addresses are printed with the same log level as backtrace headers. - lockdep: ip for locking issues is printed with the same log level as other part of the warning. - sched: ip where preemption was disabled is printed as error like the rest part of the message. - ftrace: bug reports are now consistent in the log level being used. Signed-off-by: Dmitry Safonov <dima@arista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Ben Segall <bsegall@google.com> Cc: Dietmar Eggemann <dietmar.eggemann@arm.com> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Hogan <jhogan@kernel.org> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Michal Simek <monstr@monstr.eu> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Burton <paulburton@kernel.org> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vincent Chen <deanbo422@gmail.com> Cc: Vincent Guittot <vincent.guittot@linaro.org> Cc: Will Deacon <will@kernel.org> Cc: Dmitry Safonov <0x7f454c46@gmail.com> Cc: Dmitry Safonov <dima@arista.com> Cc: Jiri Slaby <jslaby@suse.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Aurelien Jacquiot <jacquiot.aurelien@gmail.com> Cc: Mark Salter <msalter@redhat.com> Cc: Guo Ren <guoren@kernel.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Brian Cain <bcain@codeaurora.org> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ley Foon Tan <lftan@altera.com> Cc: Jonas Bonn <jonas@southpole.se> Cc: Stafford Horne <shorne@gmail.com> Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> Cc: Helge Deller <deller@gmx.de> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Rich Felker <dalias@libc.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Borislav Petkov <bp@alien8.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Chris Zankel <chris@zankel.net> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Len Brown <len.brown@intel.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Cc: Daniel Thompson <daniel.thompson@linaro.org> Cc: Douglas Anderson <dianders@chromium.org> Cc: Jason Wessel <jason.wessel@windriver.com> Link: http://lkml.kernel.org/r/20200418201944.482088-2-dima@arista.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-09perf parse-events: Fix an old style declarationIan Rogers
Fixes: a26e47162d76 (perf tools: Move ALLOC_LIST into a function) Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20200609053610.206588-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-06-09perf parse-events: Fix an incompatible pointerIan Rogers
Arrays are pointer types and don't need their address taking. Fixes: 8255718f4bed (perf pmu: Expand PMU events by prefix match) Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20200609053610.206588-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-06-09perf bpf: Fix bpf prologue generationSumanth Korikkar
Issue: bpf_probe_read() is no longer available for architecture which has overlapping address space. Hence bpf prologue generation fails Fix: Use bpf_probe_read_kernel for kernel member access. For user attribute access in kprobes, use bpf_probe_read_user. Other: @user attribute was introduced in commit 1e032f7cfa14 ("perf-probe: Add user memory access attribute support") Test: 1. ulimit -l 128 ; ./perf record -e tests/bpf_sched_setscheduler.c 2. cat tests/bpf_sched_setscheduler.c static void (*bpf_trace_printk)(const char *fmt, int fmt_size, ...) = (void *) 6; static int (*bpf_probe_read_user)(void *dst, __u32 size, const void *unsafe_ptr) = (void *) 112; static int (*bpf_probe_read_kernel)(void *dst, __u32 size, const void *unsafe_ptr) = (void *) 113; SEC("func=do_sched_setscheduler pid policy param->sched_priority@user") int bpf_func__setscheduler(void *ctx, int err, pid_t pid, int policy, int param) { char fmt[] = "prio: %ld"; bpf_trace_printk(fmt, sizeof(fmt), param); return 1; } char _license[] SEC("license") = "GPL"; int _version SEC("version") = LINUX_VERSION_CODE; 3. ./perf script sched 305669 [000] 1614458.838675: perf_bpf_probe:func: (2904e508) pid=261614 policy=2 sched_priority=1 4. cat /sys/kernel/debug/tracing/trace <...>-309956 [006] .... 1616098.093957: 0: prio: 1 Committer testing: I had to add some missing headers in the bpf_sched_setscheduler.c test proggie, then instead of using record+script I used 'perf trace' to drive everything in one go: # cat bpf_sched_setscheduler.c #include <linux/types.h> #include <bpf.h> static void (*bpf_trace_printk)(const char *fmt, int fmt_size, ...) = (void *) 6; static int (*bpf_probe_read_user)(void *dst, __u32 size, const void *unsafe_ptr) = (void *) 112; static int (*bpf_probe_read_kernel)(void *dst, __u32 size, const void *unsafe_ptr) = (void *) 113; SEC("func=do_sched_setscheduler pid policy param->sched_priority@user") int bpf_func__setscheduler(void *ctx, int err, pid_t pid, int policy, int param) { char fmt[] = "prio: %ld"; bpf_trace_printk(fmt, sizeof(fmt), param); return 1; } char _license[] SEC("license") = "GPL"; int _version SEC("version") = LINUX_VERSION_CODE; # # # perf trace -e bpf_sched_setscheduler.c chrt -f 42 sleep 1 0.000 chrt/80125 perf_bpf_probe:func(__probe_ip: -1676607808, policy: 1, sched_priority: 42) # And even with backtraces :-) # perf trace -e bpf_sched_setscheduler.c/max-stack=8/ chrt -f 42 sleep 1 0.000 chrt/79805 perf_bpf_probe:func(__probe_ip: -1676607808, policy: 1, sched_priority: 42) do_sched_setscheduler ([kernel.kallsyms]) __x64_sys_sched_setscheduler ([kernel.kallsyms]) do_syscall_64 ([kernel.kallsyms]) entry_SYSCALL_64 ([kernel.kallsyms]) __GI___sched_setscheduler (/usr/lib64/libc-2.30.so) # Signed-off-by: Sumanth Korikkar <sumanthk@linux.ibm.com> Reviewed-by: Thomas Richter <tmricht@linux.ibm.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Ilya Leoshkevich <iii@linux.ibm.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: bpf@vger.kernel.org LPU-Reference: 20200609081019.60234-3-sumanthk@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-06-09perf probe: Fix user attribute access in kprobesSumanth Korikkar
Issue: # perf probe -a 'do_sched_setscheduler pid policy param->sched_priority@user' did not work before. Fix: Make: # perf probe -a 'do_sched_setscheduler pid policy param->sched_priority@user' output equivalent to ftrace: # echo 'p:probe/do_sched_setscheduler _text+517384 pid=%r2:s32 policy=%r3:s32 sched_priority=+u0(%r4):s32' > /sys/kernel/debug/tracing/kprobe_events Other: 1. Right now, __match_glob() does not handle [u]<offset>. For now, use *u]<offset>. 2. @user attribute was introduced in commit 1e032f7cfa14 ("perf-probe: Add user memory access attribute support") Test: 1. perf probe -a 'do_sched_setscheduler pid policy param->sched_priority@user' 2 ./perf script sched 305669 [000] 1614458.838675: perf_bpf_probe:func: (2904e508) pid=261614 policy=2 sched_priority=1 3. cat /sys/kernel/debug/tracing/trace <...>-309956 [006] .... 1616098.093957: 0: prio: 1 Committer testing: Before: # perf probe -a 'do_sched_setscheduler pid policy param->sched_priority@user' param(type:sched_param) has no member sched_priority@user. Error: Failed to add events. # pahole sched_param struct sched_param { int sched_priority; /* 0 4 */ /* size: 4, cachelines: 1, members: 1 */ /* last cacheline: 4 bytes */ }; # After: # perf probe -a 'do_sched_setscheduler pid policy param->sched_priority@user' Added new event: probe:do_sched_setscheduler (on do_sched_setscheduler with pid policy sched_priority=param->sched_priority) You can now use it in all perf tools, such as: perf record -e probe:do_sched_setscheduler -aR sleep 1 # cat /sys/kernel/debug/tracing/kprobe_events p:probe/do_sched_setscheduler _text+1113792 pid=%di:s32 policy=%si:s32 sched_priority=+u0(%dx):s32 # Fixes: 1e032f7cfa14 ("perf-probe: Add user memory access attribute support") Signed-off-by: Sumanth Korikkar <sumanthk@linux.ibm.com> Reviewed-by: Thomas Richter <tmricht@linux.ibm.com> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Ilya Leoshkevich <iii@linux.ibm.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: bpf@vger.kernel.org LPU-Reference: 20200609081019.60234-2-sumanthk@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-06-09perf stat: Fix NULL pointer dereferenceHongbo Yao
If config->aggr_map is NULL and config->aggr_get_id is not NULL, the function print_aggr() will still calling arrg_update_shadow(), which can result in accessing the invalid pointer. Fixes: 088519f318be ("perf stat: Move the display functions to stat-display.c") Signed-off-by: Hongbo Yao <yaohongbo@huawei.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wei Li <liwei391@huawei.com> Link: https://lore.kernel.org/lkml/20200608163625.GC3073@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-06-09perf report: Fix NULL pointer dereference in hists__fprintf_nr_sample_events()Gaurav Singh
The 'evname' variable can be NULL, as it is checked a few lines back, check it before using. Fixes: 9e207ddfa207 ("perf report: Show call graph from reference events") Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/ Signed-off-by: Gaurav Singh <gaurav1086@gmail.com>
2020-06-09tools headers UAPI: Sync kvm.h headers with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes in: f97f5a56f597 ("x86/kvm/hyper-v: Add support for synthetic debugger interface") 850448f35aaf ("KVM: nVMX: Fix VMX preemption timer migration") 2c4c41325540 ("KVM: x86: Print symbolic names of VMX VM-Exit flags in traces") cc440cdad5b7 ("KVM: nSVM: implement KVM_GET_NESTED_STATE and KVM_SET_NESTED_STATE") f7d31e65368a ("x86/kvm/hyper-v: Explicitly align hcall param for kvm_hyperv_exit") 72de5fa4c161 ("KVM: x86: announce KVM_FEATURE_ASYNC_PF_INT") acd05785e48c ("kvm: add capability for halt polling") 3ecad8c2c1ff ("docs: fix broken references for ReST files that moved around") That do not result in any change in tooling, as the additions are not being used in any table generator. This silences these perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/kvm.h' differs from latest version at 'arch/x86/include/uapi/asm/kvm.h' diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/vmx.h' differs from latest version at 'arch/x86/include/uapi/asm/vmx.h' diff -u tools/arch/x86/include/uapi/asm/vmx.h arch/x86/include/uapi/asm/vmx.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Matlack <dmatlack@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Jon Doron <arilou@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Peter Shier <pshier@google.com> Cc: Sean Christopherson <sean.j.christopherson@intel.com> Cc: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-06-09tools headers UAPI: Sync drm/i915_drm.h with the kernel sourcesArnaldo Carvalho de Melo
To pick the change in: 4ef10fe05ba0 ("drm/i915/perf: add new open param to configure polling of OA buffer") 11ecbdddf2f8 ("drm/i915/perf: introduce global sseu pinning") That don't result in any changes in tooling, just silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h' diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-06-09tools headers UAPI: Sync linux/fscrypt.h with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes from: e3b1078bedd3 ("fscrypt: add support for IV_INO_LBLK_32 policies") That don't trigger any changes in tooling. This silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/fscrypt.h' differs from latest version at 'include/uapi/linux/fscrypt.h' diff -u tools/include/uapi/linux/fscrypt.h include/uapi/linux/fscrypt.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Eric Biggers <ebiggers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-06-09perf beauty: Add support to STATX_MNT_ID in the 'statx' syscall 'mask' argumentArnaldo Carvalho de Melo
Introduced in: fa2fcf4f1df1 ("statx: add mount ID") Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Miklos Szeredi <mszeredi@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-06-09tools headers uapi: Sync linux/stat.h with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes from: 80340fe3605c ("statx: add mount_root") fa2fcf4f1df1 ("statx: add mount ID") 581701b7efd6 ("uapi: deprecate STATX_ALL") 712b2698e4c0 ("fs/stat: Define DAX statx attribute") These add some constants that will have to be manually added in a followup cset, at some point this should move to the shell based automated way. This silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/stat.h' differs from latest version at 'include/uapi/linux/stat.h' diff -u tools/include/uapi/linux/stat.h include/uapi/linux/stat.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Darrick J. Wong <darrick.wong@oracle.com> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Miklos Szeredi <mszeredi@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-06-09tools arch x86 uapi: Synch asm/unistd.h with the kernel sourcesArnaldo Carvalho de Melo
To pick up the change in: 700d3a5a664d ("x86/syscalls: Revert "x86/syscalls: Make __X32_SYSCALL_BIT be unsigned long"") That doesn't trigger any changes in tooling and silences this perf build warning: Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/unistd.h' differs from latest version at 'arch/x86/include/uapi/asm/unistd.h' diff -u tools/arch/x86/include/uapi/asm/unistd.h arch/x86/include/uapi/asm/unistd.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@suse.de> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-06-09tools headers API: Update faccessat2 affected filesArnaldo Carvalho de Melo
Update the copies of files affected by: c8ffd8bcdd28 ("vfs: add faccessat2 syscall") To address this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/fcntl.h' differs from latest version at 'include/uapi/linux/fcntl.h' diff -u tools/include/uapi/linux/fcntl.h include/uapi/linux/fcntl.h Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h' diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl' diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl Which results in 'perf trace' gaining support for the 'faccessat2' syscall, now one can use: # perf trace -e faccessat2 And have system wide tracing of this syscall. And this also will include it; # perf trace -e faccess* Together with the other variants. How it affects building/usage (on an x86_64 system): $ cp /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c /tmp/syscalls_64.c.before $ [root@five ~]# perf trace -e faccessat2 event syntax error: 'faccessat2' \___ parser error Run 'perf list' for a list of valid events Usage: perf trace [<options>] [<command>] or: perf trace [<options>] -- <command> [<options>] or: perf trace record [<options>] [<command>] or: perf trace record [<options>] -- <command> [<options>] -e, --event <event> event/syscall selector. use 'perf list' to list available events [root@five ~]# $ cp arch/x86/entry/syscalls/syscall_64.tbl tools/perf/arch/x86/entry/syscalls/syscall_64.tbl $ git diff diff --git a/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl b/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl index 37b844f839bc..78847b32e137 100644 --- a/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl +++ b/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl @@ -359,6 +359,7 @@ 435 common clone3 sys_clone3 437 common openat2 sys_openat2 438 common pidfd_getfd sys_pidfd_getfd +439 common faccessat2 sys_faccessat2 # # x32-specific system call numbers start at 512 to avoid cache impact $ $ make -C tools/perf O=/tmp/build/perf/ install-bin <SNIP> CC /tmp/build/perf/util/syscalltbl.o LD /tmp/build/perf/util/perf-in.o LD /tmp/build/perf/perf-in.o LINK /tmp/build/perf/perf <SNIP> [root@five ~]# perf trace -e faccessat2 ^C[root@five ~]# Cc: Miklos Szeredi <mszeredi@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-06-09KVM: selftests: Ignore KVM 5-level paging support for VM_MODE_PXXV48_4KSean Christopherson
Explicitly set the VA width to 48 bits for the x86_64-only PXXV48_4K VM mode instead of asserting the guest VA width is 48 bits. The fact that KVM supports 5-level paging is irrelevant unless the selftests opt-in to 5-level paging by setting CR4.LA57 for the guest. The overzealous assert prevents running the selftests on a kernel with 5-level paging enabled. Incorporate LA57 into the assert instead of removing the assert entirely as a sanity check of KVM's CPUID output. Fixes: 567a9f1e9deb ("KVM: selftests: Introduce VM_MODE_PXXV48_4K") Reported-by: Sergio Perez Gonzalez <sergio.perez.gonzalez@intel.com> Cc: Adriana Cervantes Jimenez <adriana.cervantes.jimenez@intel.com> Cc: Peter Xu <peterx@redhat.com> Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Message-Id: <20200528021530.28091-1-sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-08selftests/net: in timestamping, strncpy needs to preserve null bytetannerlove
If user passed an interface option longer than 15 characters, then device.ifr_name and hwtstamp.ifr_name became non-null-terminated strings. The compiler warned about this: timestamping.c:353:2: warning: ‘strncpy’ specified bound 16 equals \ destination size [-Wstringop-truncation] 353 | strncpy(device.ifr_name, interface, sizeof(device.ifr_name)); Fixes: cb9eff097831 ("net: new user space API for time stamping of incoming and outgoing packets") Signed-off-by: Tanner Love <tannerlove@google.com> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-08net/tls(TLS_SW): Add selftest for 'chunked' sendfile testPooja Trivedi
This selftest tests for cases where sendfile's 'count' parameter is provided with a size greater than the intended file size. Motivation: When sendfile is provided with 'count' parameter value that is greater than the size of the file, kTLS example fails to send the file correctly. Last chunk of the file is not sent, and the data integrity is compromised. The reason is that the last chunk has MSG_MORE flag set because of which it gets added to pending records, but is not pushed. Note that if user space were to send SSL_shutdown control message, pending records would get flushed and the issue would not happen. So a shutdown control message following sendfile can mask the issue. Signed-off-by: Pooja Trivedi <pooja.trivedi@stackpath.com> Signed-off-by: Mallesham Jatharkonda <mallesham.jatharkonda@oneconvergence.com> Signed-off-by: Josh Tway <josh.tway@stackpath.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-08Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge still more updates from Andrew Morton: "Various trees. Mainly those parts of MM whose linux-next dependents are now merged. I'm still sitting on ~160 patches which await merges from -next. Subsystems affected by this patch series: mm/proc, ipc, dynamic-debug, panic, lib, sysctl, mm/gup, mm/pagemap" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (52 commits) doc: cgroup: update note about conditions when oom killer is invoked module: move the set_fs hack for flush_icache_range to m68k nommu: use flush_icache_user_range in brk and mmap binfmt_flat: use flush_icache_user_range exec: use flush_icache_user_range in read_code exec: only build read_code when needed m68k: implement flush_icache_user_range arm: rename flush_cache_user_range to flush_icache_user_range xtensa: implement flush_icache_user_range sh: implement flush_icache_user_range asm-generic: add a flush_icache_user_range stub mm: rename flush_icache_user_range to flush_icache_user_page arm,sparc,unicore32: remove flush_icache_user_range riscv: use asm-generic/cacheflush.h powerpc: use asm-generic/cacheflush.h openrisc: use asm-generic/cacheflush.h m68knommu: use asm-generic/cacheflush.h microblaze: use asm-generic/cacheflush.h ia64: use asm-generic/cacheflush.h hexagon: use asm-generic/cacheflush.h ...
2020-06-08lib/test_sysctl: support testing of sysctl. boot parameterVlastimil Babka
Testing is done by a new parameter debug.test_sysctl.boot_int which defaults to 0 and it's expected that the tester passes a boot parameter that sets it to 1. The test checks if it's set to 1. To distinguish true failure from parameter not being set, the test checks /proc/cmdline for the expected parameter, and whether test_sysctl is built-in and not a module. [vbabka@suse.cz: skip the new test if boot_int sysctl is not present] Link: http://lkml.kernel.org/r/305af605-1e60-cf84-fada-6ce1ca37c102@suse.cz Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: David Rientjes <rientjes@google.com> Cc: "Eric W . Biederman" <ebiederm@xmission.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Guilherme G . Piccoli" <gpiccoli@canonical.com> Cc: Iurii Zaikin <yzaikin@google.com> Cc: Ivan Teterevkov <ivan.teterevkov@nutanix.com> Cc: Kees Cook <keescook@chromium.org> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20200427180433.7029-6-vbabka@suse.cz Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-08tools/testing/selftests/sysctl/sysctl.sh: support CONFIG_TEST_SYSCTL=yVlastimil Babka
The testing script recommends CONFIG_TEST_SYSCTL=y, but actually only works with CONFIG_TEST_SYSCTL=m. Testing of sysctl setting via boot param however requires the test to be built-in, so make sure the test script supports it. Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: David Rientjes <rientjes@google.com> Cc: "Eric W . Biederman" <ebiederm@xmission.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Guilherme G . Piccoli" <gpiccoli@canonical.com> Cc: Iurii Zaikin <yzaikin@google.com> Cc: Ivan Teterevkov <ivan.teterevkov@nutanix.com> Cc: Kees Cook <keescook@chromium.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20200427180433.7029-5-vbabka@suse.cz Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-08selftests/bpf: Fix ringbuf selftest sample counting undeterminismAndrii Nakryiko
Fix test race, in which background poll can get either 5 or 6 samples, depending on timing of notification. Prevent this by open-coding sample triggering and forcing notification for the very last sample only. Also switch to using atomic increments and exchanges for more obviously reliable counting and checking. Additionally, check expected processed sample counters for single-threaded use cases as well. Fixes: 9a5f25ad30e5 ("selftests/bpf: Fix sample_cnt shared between two threads") Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20200608003615.3549991-1-andriin@fb.com
2020-06-08spi: spidev_test: Use %u to format unsigned numbersGeert Uytterhoeven
Consistently use %u to format unsigned numbers. For "bits" this doesn't matter that much, as it is "uint8_t". However, "speed" is "uint32_t", so in case people use "-s -1" to force the maximum, they would see: max speed: -1 Hz (4294967 KHz) While at it, use "k" (kilo) instead of "K" (kelvin) in "kHz". Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20200608100049.30648-1-geert+renesas@glider.be Signed-off-by: Mark Brown <broonie@kernel.org>
2020-06-08KVM: selftests: fix vmx_preemption_timer_test build with GCC10Vitaly Kuznetsov
GCC10 fails to build vmx_preemption_timer_test: gcc -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 -fno-stack-protector -fno-PIE -I../../../../tools/include -I../../../../tools/arch/x86/include -I../../../../usr/include/ -Iinclude -Ix86_64 -Iinclude/x86_64 -I.. -pthread -no-pie x86_64/evmcs_test.c ./linux/tools/testing/selftests/kselftest_harness.h ./linux/tools/testing/selftests/kselftest.h ./linux/tools/testing/selftests/kvm/libkvm.a -o ./linux/tools/testing/selftests/kvm/x86_64/evmcs_test /usr/bin/ld: ./linux/tools/testing/selftests/kvm/libkvm.a(vmx.o): ./linux/tools/testing/selftests/kvm/include/x86_64/vmx.h:603: multiple definition of `ctrl_exit_rev'; /tmp/ccMQpvNt.o: ./linux/tools/testing/selftests/kvm/include/x86_64/vmx.h:603: first defined here /usr/bin/ld: ./linux/tools/testing/selftests/kvm/libkvm.a(vmx.o): ./linux/tools/testing/selftests/kvm/include/x86_64/vmx.h:602: multiple definition of `ctrl_pin_rev'; /tmp/ccMQpvNt.o: ./linux/tools/testing/selftests/kvm/include/x86_64/vmx.h:602: first defined here ... ctrl_exit_rev/ctrl_pin_rev/basic variables are only used in vmx_preemption_timer_test.c, just move them there. Fixes: 8d7fbf01f9af ("KVM: selftests: VMX preemption timer migration test") Reported-by: Marcelo Bandeira Condotta <mcondotta@redhat.com> Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20200608112346.593513-2-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-08KVM: selftests: Add x86_64/debug_regs to .gitignoreVitaly Kuznetsov
Add x86_64/debug_regs to .gitignore. Reported-by: Marcelo Bandeira Condotta <mcondotta@redhat.com> Fixes: 449aa906e67e ("KVM: selftests: Add KVM_SET_GUEST_DEBUG test") Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20200608112346.593513-1-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-07Merge tag 'ntb-5.8' of git://github.com/jonmason/ntbLinus Torvalds
Pull NTB updates from Jon Mason: "Intel Icelake NTB support, Intel driver bug fixes, and lots of bug fixes for ntb tests" * tag 'ntb-5.8' of git://github.com/jonmason/ntb: NTB: ntb_test: Fix bug when counting remote files NTB: perf: Fix race condition when run with ntb_test NTB: perf: Fix support for hardware that doesn't have port numbers NTB: perf: Don't require one more memory window than number of peers NTB: ntb_pingpong: Choose doorbells based on port number NTB: Fix the default port and peer numbers for legacy drivers NTB: Revert the change to use the NTB device dev for DMA allocations NTB: ntb_tool: reading the link file should not end in a NULL byte ntb_perf: avoid false dma unmap of destination address ntb_perf: increase sleep time from one milli sec to one sec ntb_tool: pass correct struct device to dma_alloc_coherent ntb_perf: pass correct struct device to dma_alloc_coherent ntb: hw: remove the code that sets the DMA mask NTB: correct ntb_peer_spad_addr and ntb_peer_spad_read comment typos ntb: intel: fix static declaration ntb: intel: add hw workaround for NTB BAR alignment ntb: intel: Add Icelake (gen4) support for Intel NTB NTB: Fix static check warning in perf_clear_test include/ntb: Fix typo in ntb_unregister_device description
2020-06-06Merge tag 'sh-for-5.8' of git://git.libc.org/linux-shLinus Torvalds
Pull arch/sh updates from Rich Felker: "Fix for arch/sh build regression with newer binutils, removal of SH5, fixes for module exports, and misc cleanup" * tag 'sh-for-5.8' of git://git.libc.org/linux-sh: sh: remove sh5 support sh: add missing EXPORT_SYMBOL() for __delay sh: Convert ins[bwl]/outs[bwl] macros to inline functions sh: Convert iounmap() macros to inline functions sh: Add missing DECLARE_EXPORT() for __ashiftrt_r4_xx sh: configs: Cleanup old Kconfig IO scheduler options arch/sh: vmlinux.scr sh: Replace CONFIG_MTD_M25P80 with CONFIG_MTD_SPI_NOR in sh7757lcr_defconfig sh: sh4a: Bring back tmu3_device early device
2020-06-05NTB: ntb_test: Fix bug when counting remote filesLogan Gunthorpe
When remote files are counted in get_files_count, without using SSH, the code returns 0 because there is a colon prepended to $LOC. $VPATH should have been used instead of $LOC. Fixes: 06bd0407d06c ("NTB: ntb_test: Update ntb_tool Scratchpad tests") Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Acked-by: Allen Hubbe <allenbh@gmail.com> Tested-by: Alexander Fomichev <fomichev.ru@gmail.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
2020-06-05Merge tag 'gpio-v5.8-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO updates from Linus Walleij: "This is the bulk of GPIO changes for the v5.8 kernel cycle. Core changes: - A new GPIO aggregator driver has been merged: this can join a few select GPIO lines into a new aggregated GPIO chip. This can be used for security: a process can be granted access to only these lines, for example for industrial control. Another way to use this is to reexpose certain select lines to a virtual machine or container. - Warn if the gpio-line-names is too long in he DT parser core. - GPIO lines can now be looked up by line name in addition to being looked up by offset. New drivers: - A new generic regmap GPIO driver has been merged. Too many regmap drivers are starting to look like each other so we need to create some common ground and try to move drivers over to using that. - The F7188X driver now supports F81865. Driver improvements: - Large improvements to the PCA953x expander, get multiple lines and several cleanups. - Large improvements to the DesignWare DWAPB driver, and Sergey Semin has volunteered to maintain it. - PL061 can now be built as a module, this is part of a bigger effort to make the ARM platforms more modular" * tag 'gpio-v5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (77 commits) gpio: pca953x: Drop unneeded ACPI_PTR() MAINTAINERS: Add gpio regmap section gpio: add a reusable generic gpio_chip using regmap gpiolib: Introduce gpiochip_irqchip_add_domain() gpio: gpiolib: Allow GPIO IRQs to lazy disable gpiolib: Separate GPIO_GET_LINEINFO_WATCH_IOCTL conditional gpio: rcar: Fix runtime PM imbalance on error gpio: pca935x: Allow IRQ support for driver built as a module gpio: pxa: Add COMPILE_TEST support dt-bindings: gpio: Add renesas,em-gio bindings MAINTAINERS: Fix file name for DesignWare GPIO DT schema gpio: dwapb: Remove unneeded has_irq member in struct dwapb_port_property gpio: dwapb: Don't use IRQ 0 as valid Linux interrupt gpio: dwapb: avoid error message for optional IRQ gpio: dwapb: Call acpi_gpiochip_free_interrupts() on GPIO chip de-registration gpio: max730x: bring gpiochip_add_data after port config MAINTAINERS: Add GPIO Aggregator section docs: gpio: Add GPIO Aggregator documentation gpio: Add GPIO Aggregator gpiolib: Add support for GPIO lookup by line name ...
2020-06-05Merge tag 'powerpc-5.8-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: - Support for userspace to send requests directly to the on-chip GZIP accelerator on Power9. - Rework of our lockless page table walking (__find_linux_pte()) to make it safe against parallel page table manipulations without relying on an IPI for serialisation. - A series of fixes & enhancements to make our machine check handling more robust. - Lots of plumbing to add support for "prefixed" (64-bit) instructions on Power10. - Support for using huge pages for the linear mapping on 8xx (32-bit). - Remove obsolete Xilinx PPC405/PPC440 support, and an associated sound driver. - Removal of some obsolete 40x platforms and associated cruft. - Initial support for booting on Power10. - Lots of other small features, cleanups & fixes. Thanks to: Alexey Kardashevskiy, Alistair Popple, Andrew Donnellan, Andrey Abramov, Aneesh Kumar K.V, Balamuruhan S, Bharata B Rao, Bulent Abali, Cédric Le Goater, Chen Zhou, Christian Zigotzky, Christophe JAILLET, Christophe Leroy, Dmitry Torokhov, Emmanuel Nicolet, Erhard F., Gautham R. Shenoy, Geoff Levand, George Spelvin, Greg Kurz, Gustavo A. R. Silva, Gustavo Walbon, Haren Myneni, Hari Bathini, Joel Stanley, Jordan Niethe, Kajol Jain, Kees Cook, Leonardo Bras, Madhavan Srinivasan., Mahesh Salgaonkar, Markus Elfring, Michael Neuling, Michal Simek, Nathan Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas Piggin, Oliver O'Halloran, Paul Mackerras, Pingfan Liu, Qian Cai, Ram Pai, Raphael Moreira Zinsly, Ravi Bangoria, Sam Bobroff, Sandipan Das, Segher Boessenkool, Stephen Rothwell, Sukadev Bhattiprolu, Tyrel Datwyler, Wolfram Sang, Xiongfeng Wang. * tag 'powerpc-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (299 commits) powerpc/pseries: Make vio and ibmebus initcalls pseries specific cxl: Remove dead Kconfig options powerpc: Add POWER10 architected mode powerpc/dt_cpu_ftrs: Add MMA feature powerpc/dt_cpu_ftrs: Enable Prefixed Instructions powerpc/dt_cpu_ftrs: Advertise support for ISA v3.1 if selected powerpc: Add support for ISA v3.1 powerpc: Add new HWCAP bits powerpc/64s: Don't set FSCR bits in INIT_THREAD powerpc/64s: Save FSCR to init_task.thread.fscr after feature init powerpc/64s: Don't let DT CPU features set FSCR_DSCR powerpc/64s: Don't init FSCR_DSCR in __init_FSCR() powerpc/32s: Fix another build failure with CONFIG_PPC_KUAP_DEBUG powerpc/module_64: Use special stub for _mcount() with -mprofile-kernel powerpc/module_64: Simplify check for -mprofile-kernel ftrace relocations powerpc/module_64: Consolidate ftrace code powerpc/32: Disable KASAN with pages bigger than 16k powerpc/uaccess: Don't set KUEP by default on book3s/32 powerpc/uaccess: Don't set KUAP by default on book3s/32 powerpc/8xx: Reduce time spent in allow_user_access() and friends ...
2020-06-05KVM: selftests: Fix build with "make ARCH=x86_64"Vitaly Kuznetsov
Marcelo reports that kvm selftests fail to build with "make ARCH=x86_64": gcc -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 -fno-stack-protector -fno-PIE -I../../../../tools/include -I../../../../tools/arch/x86_64/include -I../../../../usr/include/ -Iinclude -Ilib -Iinclude/x86_64 -I.. -c lib/kvm_util.c -o /var/tmp/20200604202744-bin/lib/kvm_util.o In file included from lib/kvm_util.c:11: include/x86_64/processor.h:14:10: fatal error: asm/msr-index.h: No such file or directory #include <asm/msr-index.h> ^~~~~~~~~~~~~~~~~ compilation terminated. "make ARCH=x86", however, works. The problem is that arch specific headers for x86_64 live in 'tools/arch/x86/include', not in 'tools/arch/x86_64/include'. Fixes: 66d69e081b52 ("selftests: fix kvm relocatable native/cross builds and installs") Reported-by: Marcelo Bandeira Condotta <mcondotta@redhat.com> Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20200605142028.550068-1-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-05ACPICA: acpidump: Removed dead code from oslinuxtbl.cBob Moore
ACPICA commit 4d938d048790983b8b4252b0f4aeec59dabb476c ACPICA BZ 1119. Link: https://github.com/acpica/acpica/commit/4d938d04 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Kaneda <erik.kaneda@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-06-04Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge yet more updates from Andrew Morton: - More MM work. 100ish more to go. Mike Rapoport's "mm: remove __ARCH_HAS_5LEVEL_HACK" series should fix the current ppc issue - Various other little subsystems * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (127 commits) lib/ubsan.c: fix gcc-10 warnings tools/testing/selftests/vm: remove duplicate headers selftests: vm: pkeys: fix multilib builds for x86 selftests: vm: pkeys: use the correct page size on powerpc selftests/vm/pkeys: override access right definitions on powerpc selftests/vm/pkeys: test correct behaviour of pkey-0 selftests/vm/pkeys: introduce a sub-page allocator selftests/vm/pkeys: detect write violation on a mapped access-denied-key page selftests/vm/pkeys: associate key on a mapped page and detect write violation selftests/vm/pkeys: associate key on a mapped page and detect access violation selftests/vm/pkeys: improve checks to determine pkey support selftests/vm/pkeys: fix assertion in test_pkey_alloc_exhaust() selftests/vm/pkeys: fix number of reserved powerpc pkeys selftests/vm/pkeys: introduce powerpc support selftests/vm/pkeys: introduce generic pkey abstractions selftests: vm: pkeys: use the correct huge page size selftests/vm/pkeys: fix alloc_random_pkey() to make it really random selftests/vm/pkeys: fix assertion in pkey_disable_set/clear() selftests/vm/pkeys: fix pkey_disable_clear() selftests: vm: pkeys: add helpers for pkey bits ...
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