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2017-05-03selftests/bpf: get rid of -D__x86_64__Alexei Starovoitov2-2/+3
-D__x86_64__ workaround was used to make /usr/include/features.h to follow expected path through the system include headers. This is not portable. Instead define dummy stubs.h which is used by 'clang -target bpf' Fixes: 6882804c916b ("selftests/bpf: add a test for overlapping packet range checks") Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-03selftests/bpf: add a test case to check verifier pointer arithmeticYonghong Song3-1/+275
With clang/llvm 4.0+, the test case is able to generate the following pattern: .... 440: (b7) r1 = 15 441: (05) goto pc+73 515: (79) r6 = *(u64 *)(r10 -152) 516: (bf) r7 = r10 517: (07) r7 += -112 518: (bf) r2 = r7 519: (0f) r2 += r1 520: (71) r1 = *(u8 *)(r8 +0) 521: (73) *(u8 *)(r2 +45) = r1 .... commit 332270fdc8b6 ("bpf: enhance verifier to understand stack pointer arithmetic") improved verifier to handle such a pattern. This patch adds a C test case to actually generate such a pattern. A dummy tracepoint interface is used to load the program into the kernel. Signed-off-by: Yonghong Song <yhs@fb.com> Acked-by: Martin KaFai Lau <kafai@fb.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-02Merge branch 'for-linus' of ↵Linus Torvalds3-4/+4
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree updates from Jiri Kosina. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: tty: fix comment for __tty_alloc_driver() init/main: properly align the multi-line comment init/main: Fix double "the" in comment Fix dead URLs to ftp.kernel.org drivers: Clean up duplicated email address treewide: Fix typo in xml/driver-api/basics.xml tools/testing/selftests/powerpc: remove redundant CFLAGS in Makefile: "-Wall -O2 -Wall" -> "-O2 -Wall" selftests/timers: Spelling s/privledges/privileges/ HID: picoLCD: Spelling s/REPORT_WRTIE_MEMORY/REPORT_WRITE_MEMORY/ net: phy: dp83848: Fix Typo UBI: Fix typos Documentation: ftrace.txt: Correct nice value of 120 priority net: fec: Fix typo in error msg and comment treewide: Fix typos in printk
2017-05-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds22-91/+1947
Pull networking updates from David Millar: "Here are some highlights from the 2065 networking commits that happened this development cycle: 1) XDP support for IXGBE (John Fastabend) and thunderx (Sunil Kowuri) 2) Add a generic XDP driver, so that anyone can test XDP even if they lack a networking device whose driver has explicit XDP support (me). 3) Sparc64 now has an eBPF JIT too (me) 4) Add a BPF program testing framework via BPF_PROG_TEST_RUN (Alexei Starovoitov) 5) Make netfitler network namespace teardown less expensive (Florian Westphal) 6) Add symmetric hashing support to nft_hash (Laura Garcia Liebana) 7) Implement NAPI and GRO in netvsc driver (Stephen Hemminger) 8) Support TC flower offload statistics in mlxsw (Arkadi Sharshevsky) 9) Multiqueue support in stmmac driver (Joao Pinto) 10) Remove TCP timewait recycling, it never really could possibly work well in the real world and timestamp randomization really zaps any hint of usability this feature had (Soheil Hassas Yeganeh) 11) Support level3 vs level4 ECMP route hashing in ipv4 (Nikolay Aleksandrov) 12) Add socket busy poll support to epoll (Sridhar Samudrala) 13) Netlink extended ACK support (Johannes Berg, Pablo Neira Ayuso, and several others) 14) IPSEC hw offload infrastructure (Steffen Klassert)" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2065 commits) tipc: refactor function tipc_sk_recv_stream() tipc: refactor function tipc_sk_recvmsg() net: thunderx: Optimize page recycling for XDP net: thunderx: Support for XDP header adjustment net: thunderx: Add support for XDP_TX net: thunderx: Add support for XDP_DROP net: thunderx: Add basic XDP support net: thunderx: Cleanup receive buffer allocation net: thunderx: Optimize CQE_TX handling net: thunderx: Optimize RBDR descriptor handling net: thunderx: Support for page recycling ipx: call ipxitf_put() in ioctl error path net: sched: add helpers to handle extended actions qed*: Fix issues in the ptp filter config implementation. qede: Fix concurrency issue in PTP Tx path processing. stmmac: Add support for SIMATIC IOT2000 platform net: hns: fix ethtool_get_strings overflow in hns driver tcp: fix wraparound issue in tcp_lp bpf, arm64: fix jit branch offset related to ldimm64 bpf, arm64: implement jiting of BPF_XADD ...
2017-05-02selftests: bpf: Use bpf_endian.h in test_xdp.cDavid S. Miller1-9/+8
This fixes the testcase on big-endian. Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-01Merge branch 'x86-mm-for-linus' of ↵Linus Torvalds2-2/+49
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 mm updates from Ingo Molnar: "The main x86 MM changes in this cycle were: - continued native kernel PCID support preparation patches to the TLB flushing code (Andy Lutomirski) - various fixes related to 32-bit compat syscall returning address over 4Gb in applications, launched from 64-bit binaries - motivated by C/R frameworks such as Virtuozzo. (Dmitry Safonov) - continued Intel 5-level paging enablement: in particular the conversion of x86 GUP to the generic GUP code. (Kirill A. Shutemov) - x86/mpx ABI corner case fixes/enhancements (Joerg Roedel) - ... plus misc updates, fixes and cleanups" * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (62 commits) mm, zone_device: Replace {get, put}_zone_device_page() with a single reference to fix pmem crash x86/mm: Fix flush_tlb_page() on Xen x86/mm: Make flush_tlb_mm_range() more predictable x86/mm: Remove flush_tlb() and flush_tlb_current_task() x86/vm86/32: Switch to flush_tlb_mm_range() in mark_screen_rdonly() x86/mm/64: Fix crash in remove_pagetable() Revert "x86/mm/gup: Switch GUP to the generic get_user_page_fast() implementation" x86/boot/e820: Remove a redundant self assignment x86/mm: Fix dump pagetables for 4 levels of page tables x86/mpx, selftests: Only check bounds-vs-shadow when we keep shadow x86/mpx: Correctly report do_mpx_bt_fault() failures to user-space Revert "x86/mm/numa: Remove numa_nodemask_from_meminfo()" x86/espfix: Add support for 5-level paging x86/kasan: Extend KASAN to support 5-level paging x86/mm: Add basic defines/helpers for CONFIG_X86_5LEVEL=y x86/paravirt: Add 5-level support to the paravirt code x86/mm: Define virtual memory map for 5-level paging x86/asm: Remove __VIRTUAL_MASK_SHIFT==47 assert x86/boot: Detect 5-level paging support x86/mm/numa: Remove numa_nodemask_from_meminfo() ...
2017-05-01Merge branch 'x86-boot-for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 boot updates from Ingo Molnar: "The biggest changes in this cycle were: - reworking of the e820 code: separate in-kernel and boot-ABI data structures and apply a whole range of cleanups to the kernel side. No change in functionality. - enable KASLR by default: it's used by all major distros and it's out of the experimental stage as well. - ... misc fixes and cleanups" * 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (63 commits) x86/KASLR: Fix kexec kernel boot crash when KASLR randomization fails x86/reboot: Turn off KVM when halting a CPU x86/boot: Fix BSS corruption/overwrite bug in early x86 kernel startup x86: Enable KASLR by default boot/param: Move next_arg() function to lib/cmdline.c for later reuse x86/boot: Fix Sparse warning by including required header file x86/boot/64: Rename start_cpu() x86/xen: Update e820 table handling to the new core x86 E820 code x86/boot: Fix pr_debug() API braindamage xen, x86/headers: Add <linux/device.h> dependency to <asm/xen/page.h> x86/boot/e820: Simplify e820__update_table() x86/boot/e820: Separate the E820 ABI structures from the in-kernel structures x86/boot/e820: Fix and clean up e820_type switch() statements x86/boot/e820: Rename the remaining E820 APIs to the e820__*() prefix x86/boot/e820: Remove unnecessary #include's x86/boot/e820: Rename e820_mark_nosave_regions() to e820__register_nosave_regions() x86/boot/e820: Rename e820_reserve_resources*() to e820__reserve_resources*() x86/boot/e820: Use bool in query APIs x86/boot/e820: Document e820__reserve_setup_data() x86/boot/e820: Clean up __e820__update_table() et al ...
2017-05-01Merge branch 'perf-core-for-linus' of ↵Linus Torvalds325-1753/+7363
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf updates from Ingo Molnar: "The main changes in this cycle were: Kernel side changes: - Kprobes and uprobes changes: - Make their trampolines read-only while they are used - Make UPROBES_EVENTS default-y which is the distro practice - Apply misc fixes and robustization to probe point insertion. - add support for AMD IOMMU events - extend hw events on Intel Goldmont CPUs - ... plus misc fixes and updates. Tooling side changes: - support s390 jump instructions in perf annotate (Christian Borntraeger) - vendor hardware events updates (Andi Kleen) - add argument support for SDT events in powerpc (Ravi Bangoria) - beautify the statx syscall arguments in 'perf trace' (Arnaldo Carvalho de Melo) - handle inline functions in callchains (Jin Yao) - enable sorting by srcline as key (Milian Wolff) - add 'brstackinsn' field in 'perf script' to reuse the x86 instruction decoder used in the Intel PT code to study hot paths to samples (Andi Kleen) - add PERF_RECORD_NAMESPACES so that the kernel can record information required to associate samples to namespaces, helping in container problem characterization. (Hari Bathini) - allow sorting by symbol_size in 'perf report' and 'perf top' (Charles Baylis) - in perf stat, make system wide (-a) the default option if no target was specified and one of following conditions is met: - no workload specified (current behaviour) - a workload is specified but all requested events are system wide ones, like uncore ones. (Jiri Olsa) - ... plus lots of other updates, enhancements, cleanups and fixes" * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (235 commits) perf tools: Fix the code to strip command name tools arch x86: Sync cpufeatures.h tools arch: Sync arch/x86/lib/memcpy_64.S with the kernel tools: Update asm-generic/mman-common.h copy from the kernel perf tools: Use just forward declarations for struct thread where possible perf tools: Add the right header to obtain PERF_ALIGN() perf tools: Remove poll.h and wait.h from util.h perf tools: Remove string.h, unistd.h and sys/stat.h from util.h perf tools: Remove stale prototypes from builtin.h perf tools: Remove string.h from util.h perf tools: Remove sys/ioctl.h from util.h perf tools: Remove a few more needless includes from util.h perf tools: Include sys/param.h where needed perf callchain: Move callchain specific routines from util.[ch] perf tools: Add compress.h for the *_decompress_to_file() headers perf mem: Fix display of data source snoop indication perf debug: Move dump_stack() and sighandler_dump_stack() to debug.h perf kvm: Make function only used by 'perf kvm' static perf tools: Move timestamp routines from util.h to time-utils.h perf tools: Move units conversion/formatting routines to separate object ...
2017-05-01bpf: Include bpf_endian.h in test_progs.c too.David S. Miller1-0/+1
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-01bpf: Move endianness BPF helpers out of bpf_util.hDavid S. Miller4-21/+25
We do not want to include things like stdio.h and friends into eBPF program builds. bpf_util.h is for host compiled programs, so eBPF C-code helpers don't really belong there. Add a new bpf_endian.h as a quick fix for this for now. Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-01bpf: enhance verifier to understand stack pointer arithmeticYonghong Song1-6/+12
llvm 4.0 and above generates the code like below: .... 440: (b7) r1 = 15 441: (05) goto pc+73 515: (79) r6 = *(u64 *)(r10 -152) 516: (bf) r7 = r10 517: (07) r7 += -112 518: (bf) r2 = r7 519: (0f) r2 += r1 520: (71) r1 = *(u8 *)(r8 +0) 521: (73) *(u8 *)(r2 +45) = r1 .... and the verifier complains "R2 invalid mem access 'inv'" for insn #521. This is because verifier marks register r2 as unknown value after #519 where r2 is a stack pointer and r1 holds a constant value. Teach verifier to recognize "stack_ptr + imm" and "stack_ptr + reg with const val" as valid stack_ptr with new offset. Signed-off-by: Yonghong Song <yhs@fb.com> Acked-by: Martin KaFai Lau <kafai@fb.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-28Merge branch 'pm-tools'Rafael J. Wysocki6-0/+6553
* pm-tools: tools: power: pm-graph: Package makefile and man pages tools: power: pm-graph: AnalyzeBoot v2.0 tools: power: pm-graph: AnalyzeSuspend v4.6 tools/power/x86/intel_pstate_tracer: Adjust directory ownership
2017-04-28bpf: provide a generic macro for percpu values for selftestsDaniel Borkmann2-17/+27
To overcome bugs as described and fixed in 89087c456fb5 ("bpf: Fix values type used in test_maps"), provide a generic BPF_DECLARE_PERCPU() and bpf_percpu() accessor macro for all percpu map values used in tests. Declaring variables works as follows (also works for structs): BPF_DECLARE_PERCPU(uint32_t, my_value); They can then be accessed normally as uint32_t type through: bpf_percpu(my_value, <cpu_nr>) For example: bpf_percpu(my_value, 0)++; Implicitly, we make sure that the passed type is allocated and aligned by gcc at least on a 8-byte boundary, so that it works together with the map lookup/update syscall for percpu maps. We use it as a usage example in test_maps, so that others are free to adapt this into their code when necessary. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-28bpf: fix _htons occurences in test_progsDaniel Borkmann4-15/+31
Dave reported that on sparc test_progs generates buggy swapped eth->h_proto protocol comparisons: 10: (15) if r3 == 0xdd86 goto pc+9 R0=imm2,min_value=2,max_value=2 R1=pkt(id=0,off=0,r=14) R2=pkt_end R3=inv R4=pkt(id=0,off=14,r=14) R5=inv56 R10=fp This is due to the unconditional ... #define htons __builtin_bswap16 #define ntohs __builtin_bswap16 ... in test_progs that causes this. Make use of asm/byteorder.h and use __constant_htons() where possible and only perform the bswap16 when on little endian in non-constant case. Fixes: 6882804c916b ("selftests/bpf: add a test for overlapping packet range checks") Fixes: 37821613626e ("selftests/bpf: add l4 load balancer test based on sched_cls") Reported-by: David S. Miller <davem@davemloft.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-28bpf: add various test cases to verifier selftestsDaniel Borkmann1-0/+137
Add several test cases around ldimm64, fp arithmetic and direct packet access. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-25bpf: map_get_next_key to return first key on NULLTeng Qin1-4/+25
When iterating through a map, we need to find a key that does not exist in the map so map_get_next_key will give us the first key of the map. This often requires a lot of guessing in production systems. This patch makes map_get_next_key return the first key when the key pointer in the parameter is NULL. Signed-off-by: Teng Qin <qinteng@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-25selftests/net: Fix broken test case in psock_fanoutMike Maloney1-1/+1
The error return falue form sock_fanout_open is -1, not zero. One test case was checking for 0 instead of -1. Tested: Built and tested in clean client. Signed-off-by: Mike Maloney <maloney@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-24selftests/net: add tests for PACKET_FANOUT_FLAG_UNIQUEIDMike Maloney1-11/+84
Create two groups with PACKET_FANOUT_FLAG_UNIQUEID, add a socket to one. Ensure that the groups can only be joined if all options are consistent with the original except for this flag. Signed-off-by: Mike Maloney <maloney@google.com> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-24selftests/net: cleanup unused parameter in psock_fanoutMike Maloney1-9/+9
sock_fanout_open no longer sets the size of packet_socket ring, so stop passing the parameter. Signed-off-by: Mike Maloney <maloney@google.com> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-24perf tools: Fix the code to strip command nameJiri Olsa1-1/+8
Recent commit broke command name strip in perf_event__get_comm_ids function. It replaced left to right search for '\n' with rtrim, which actually does right to left search. It occasionally caught earlier '\n' and kept trash in the command name. Keeping the ltrim, but moving back the left to right '\n' search instead of the rtrim. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Taeung Song <treeze.taeung@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Yao Jin <yao.jin@linux.intel.com> Fixes: bdd97ca63faa ("perf tools: Refactor the code to strip command name with {l,r}trim()") Link: http://lkml.kernel.org/r/20170420092430.29657-1-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-24tools arch x86: Sync cpufeatures.hArnaldo Carvalho de Melo1-0/+1
To catch changes made in: 90218ac77d05 ("x86/cpufeature: Detect CPUID faulting support") No changes needed in the tools using this file at this time. Cc: Kyle Huey <me@kylehuey.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-qiqsj5qg2ljbsbfre2zaf9v4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-24tools arch: Sync arch/x86/lib/memcpy_64.S with the kernelArnaldo Carvalho de Melo1-1/+1
Just a minor fix done in: Fixes: 26a37ab319a2 ("x86/mce: Fix copy/paste error in exception table entries") Cc: Tony Luck <tony.luck@intel.com> Link: http://lkml.kernel.org/n/tip-ni9jzdd5yxlail6pq8cuexw2@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-24tools: Update asm-generic/mman-common.h copy from the kernelArnaldo Carvalho de Melo1-2/+3
To get the changes in the commit Fixes: 3209f68b3ca4 ("statx: Include a mask for stx_attributes in struct statx") Silencing this perf build warning: Warning: tools/include/uapi/linux/stat.h differs from kernel No need to change the statx syscall beautifiers in 'perf trace' at this time. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: David Ahern <dsahern@gmail.com> Cc: David Howells <dhowells@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-y8bgiyzuvura62lffvh1zbg9@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-24perf tools: Use just forward declarations for struct thread where possibleArnaldo Carvalho de Melo15-5/+19
Removing various instances of unnecessary includes, reducing the maze of header dependencies. Link: http://lkml.kernel.org/n/tip-hwu6eyuok9pc57alookyzmsf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-24perf tools: Add the right header to obtain PERF_ALIGN()Arnaldo Carvalho de Melo1-1/+1
The util/event.h header needs PERF_ALIGN(), but wasn't including linux/kernel.h, where it is defined, instead it was getting it by luck by including map.h, which it doesn't need at all. Fix it by including the right header. Link: http://lkml.kernel.org/n/tip-nf3t9blzm5ncoxsczi8oy9mx@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-24perf tools: Remove poll.h and wait.h from util.hArnaldo Carvalho de Melo12-2/+12
Not needed in this header, added to the places that need poll(), wait() and a few other prototypes. Link: http://lkml.kernel.org/n/tip-i39c7b6xmo1vwd9wxp6fmkl0@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-24perf tools: Remove string.h, unistd.h and sys/stat.h from util.hArnaldo Carvalho de Melo25-4/+57
Not needed in this header, added to the places that need FILE, putchar(), access() and a few other prototypes. Link: http://lkml.kernel.org/n/tip-xxtdsl6nsna82j7puwbdjqhs@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-24perf tools: Remove stale prototypes from builtin.hArnaldo Carvalho de Melo2-5/+1
Some, like prune_packed_objects() are clearly git specific, others don't have implementations and some are used in just one place, make them static. Link: http://lkml.kernel.org/n/tip-faj3c5dnttf3hurv4pujut8n@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-24perf tools: Remove string.h from util.hArnaldo Carvalho de Melo4-1/+4
Not needed in this header, added to the places that need strdup, strcmp and a few other prototypes. Link: http://lkml.kernel.org/n/tip-t24yy85xnlv55kyosrum2ubs@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-24perf tools: Remove sys/ioctl.h from util.hArnaldo Carvalho de Melo5-2/+4
Not needed in this header, added to the places that need 'struct winsize' and the ioctl defines. Link: http://lkml.kernel.org/n/tip-2pznlli3146y4242otlcm70m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-24perf tools: Remove a few more needless includes from util.hArnaldo Carvalho de Melo1-4/+0
Link: http://lkml.kernel.org/n/tip-sb2zu21d6h42e5qnsrtl6wuu@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-24perf tools: Include sys/param.h where neededArnaldo Carvalho de Melo9-1/+8
As it is going away from util.h, where it is not needed. This is mostly for things like MAXPATHLEN, MAX() and MIN(), these later two probably should go away in favor of its kernel sources replacements. Link: http://lkml.kernel.org/n/tip-z1666f3fl3fqobxvjr5o2r39@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-24perf callchain: Move callchain specific routines from util.[ch]Arnaldo Carvalho de Melo4-108/+116
Where they belong, no point in leaving those in the generic "util" files. Link: http://lkml.kernel.org/n/tip-ljx3iiip1hlfa7a7apjem7ph@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-24perf tools: Add compress.h for the *_decompress_to_file() headersArnaldo Carvalho de Melo5-8/+15
Out of util.h, the implementations were already in separate files, that are built conditionally. Link: http://lkml.kernel.org/n/tip-0ur7szxsb59f8758kfe63prb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-24perf mem: Fix display of data source snoop indicationAndi Kleen1-1/+1
'perf mem report' doesn't display the data source snoop indication correctly. In the kernel API the definition is: #define PERF_MEM_SNOOP_NONE 0x02 /* no snoop */ #define PERF_MEM_SNOOP_HIT 0x04 /* snoop hit */ #define PERF_MEM_SNOOP_MISS 0x08 /* snoop miss */ but the table used by the perf tools exchanged "Hit" and "Miss": "None", "Miss", "Hit", Fix the table in perf. Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/20170419174940.13641-1-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-24perf debug: Move dump_stack() and sighandler_dump_stack() to debug.hArnaldo Carvalho de Melo4-35/+34
Two more out of util.h. Link: http://lkml.kernel.org/n/tip-polkuxm1cpr06lbgue5pyqum@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-24perf kvm: Make function only used by 'perf kvm' staticArnaldo Carvalho de Melo3-15/+14
No need to have this polluting util.h, it was polluted enough already. Link: http://lkml.kernel.org/n/tip-wfdidqlwbvi5y0s61kv6z2gn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-22bpf: Add sparc support to tools and samples.David S. Miller2-0/+5
Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Daniel Borkmann <daniel@iogearbox.net>
2017-04-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller3-14/+25
Both conflict were simple overlapping changes. In the kaweth case, Eric Dumazet's skb_cow() bug fix overlapped the conversion of the driver in net-next to use in-netdev stats. Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-21bpf: Fix values type used in test_mapsDavid Miller1-2/+2
Maps of per-cpu type have their value element size adjusted to 8 if it is specified smaller during various map operations. This makes test_maps as a 32-bit binary fail, in fact the kernel writes past the end of the value's array on the user's stack. To be quite honest, I think the kernel should reject creation of a per-cpu map that doesn't have a value size of at least 8 if that's what the kernel is going to silently adjust to later. If the user passed something smaller, it is a sizeof() calcualtion based upon the type they will actually use (just like in this testcase code) in later calls to the map operations. Fixes: df570f577231 ("samples/bpf: unit test for BPF_MAP_TYPE_PERCPU_ARRAY") Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org>
2017-04-21bpf: add napi_id read access to __sk_buffDaniel Borkmann2-0/+4
Add napi_id access to __sk_buff for socket filter program types, tc program types and other bpf_convert_ctx_access() users. Having access to skb->napi_id is useful for per RX queue listener siloing, f.e. in combination with SO_ATTACH_REUSEPORT_EBPF and when busy polling is used, meaning SO_REUSEPORT enabled listeners can then select the corresponding socket at SYN time already [1]. The skb is marked via skb_mark_napi_id() early in the receive path (e.g., napi_gro_receive()). Currently, sockets can only use SO_INCOMING_NAPI_ID from 6d4339028b35 ("net: Introduce SO_INCOMING_NAPI_ID") as a socket option to look up the NAPI ID associated with the queue for steering, which requires a prior sk_mark_napi_id() after the socket was looked up. Semantics for the __sk_buff napi_id access are similar, meaning if skb->napi_id is < MIN_NAPI_ID (e.g. outgoing packets using sender_cpu), then an invalid napi_id of 0 is returned to the program, otherwise a valid non-zero napi_id. [1] http://netdevconf.org/2.1/slides/apr6/dumazet-BUSY-POLLING-Netdev-2.1.pdf Suggested-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-20selftests/net: Fixes psock_fanout CBPF test caseMike Maloney2-12/+23
'psock_fanout' has been failing since commit 4d7b9dc1f36a9 ("tools: psock_lib: harden socket filter used by psock tests"). That commit changed the CBPF filter to examine the full ethernet frame, and was tested on 'psock_tpacket' which uses SOCK_RAW. But 'psock_fanout' was also using this same CBPF in two places, for filtering and fanout, on a SOCK_DGRAM socket. Change 'psock_fanout' to use SOCK_RAW so that the CBPF program used with SO_ATTACH_FILTER can examine the entire frame. Create a new CBPF program for use with PACKET_FANOUT_DATA which ignores the header, as it cannot see the ethernet header. Tested: Ran tools/testing/selftests/net/psock_{fanout,tpacket} 10 times, and they all passed. Fixes: 4d7b9dc1f36a9 ("tools: psock_lib: harden socket filter used by psock tests") Signed-off-by: 'Mike Maloney <maloneykernel@gmail.com>' Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-20perf tools: Move timestamp routines from util.h to time-utils.hArnaldo Carvalho de Melo7-31/+35
We already have a header for time utilities, so use it. Link: http://lkml.kernel.org/n/tip-sijzpbvutlg0c3oxn49hy9ca@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-20perf tools: Move units conversion/formatting routines to separate objectArnaldo Carvalho de Melo11-39/+56
Out of util.h, to disentangle it a bit more. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-vpksyj3w5fk9t8s6mxmkajyr@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-20perf tools: Add signal.h to places using its definitionsArnaldo Carvalho de Melo17-1/+16
And remove it from util.h, disentangling it a bit more. Link: http://lkml.kernel.org/n/tip-2zg9s5nx90yde64j3g4z2uhk@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-20perf unwind: Provide only forward declarations for pointer typesArnaldo Carvalho de Melo1-3/+6
No need to drag the headers, helps in untangling them and reducing build time. Link: http://lkml.kernel.org/n/tip-l8soqph92duyw5jdha0fij8b@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-0/+117
A function in kernel/bpf/syscall.c which got a bug fix in 'net' was moved to kernel/bpf/verifier.c in 'net-next'. Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-19tools: power: pm-graph: Package makefile and man pagesTodd E Brandt3-0/+403
BootGraph and SleepGraph man pages - includes full descriptions of tool arguments and commands - includes examples of common use cases Makefile - no build required, used only for install - installs man pages and tools as libraries with links - includes an uninstall Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-04-19tools: power: pm-graph: AnalyzeBoot v2.0Todd E Brandt1-0/+824
First release into the kernel tools source - pulls in analyze_suspend.py as as library, same html formatting - supplants scripts/bootgraph.pl, outputs HTML instead of SVG - enables automatic reboot and collection for easy timeline capture - enables ftrace callgraph collection from early boot Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-04-19tools: power: pm-graph: AnalyzeSuspend v4.6Todd E Brandt1-0/+5309
Moved from scripts into tools, and updated from 4.5 to 4.6 - Changed the tool title to SleepGraph - Reformatted the code so analyze_suspend can be used as a library - Reorganized all html/js/css handling code to be used by other tools - upgraded the -summary feature to work faster with better readability Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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