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2018-03-13selftest/powerpc: Add test for sigreturn in transactionLaurent Dufour
Ensure that kernel is throwing away the suspended transaction when sigreturn() is called otherwise it if fails to restore the signal frame's TM SPRS. Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com> Reviewed-by: Cyril Bur <cyrilbur@gmail.com> [mpe: Add have_htm() check, minor formatting, add SPDX tag] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-03-12tc-testing: updated gact tests with batch test casesRoman Mashak
Signed-off-by: Roman Mashak <mrv@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-12tc-testing: add TC vlan action testsRoman Mashak
Signed-off-by: Roman Mashak <mrv@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-11selftests: forwarding: Allow creation of interfaces without a config fileIdo Schimmel
Some users want to be able to run the tests without a configuration file which is useful when one needs to test both virtual and physical interfaces on the same machine. Move the defines that set the type of interface to create and whether to create it away from the optional configuration file to the library like the rest of the defines. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-11selftests: forwarding: Exit with error when missing interfacesIdo Schimmel
Returning 0 gives a false sense of success when the required modules did not even manage to be initialized and register the required net devices. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-11selftests: forwarding: Exit with error when missing dependenciesIdo Schimmel
We already return an error when some dependencies (e.g., 'jq') are missing so lets be consistent and do that for all. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-11selftests: forwarding: Add a test for VLAN-unaware bridgeIdo Schimmel
Similar to the VLAN-aware bridge test, test the VLAN-unaware bridge and make sure that ping, FDB learning and flooding work as expected. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-11Merge branch 'x86-pti-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86/pti updates from Thomas Gleixner: "Yet another pile of melted spectrum related updates: - Drop native vsyscall support finally as it causes more trouble than benefit. - Make microcode loading more robust. There were a few issues especially related to late loading which are now surfacing because late loading of the IB* microcodes addressing spectre issues has become more widely used. - Simplify and robustify the syscall handling in the entry code - Prevent kprobes on the entry trampoline code which lead to kernel crashes when the probe hits before CR3 is updated - Don't check microcode versions when running on hypervisors as they are considered as lying anyway. - Fix the 32bit objtool build and a coment typo" * 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/kprobes: Fix kernel crash when probing .entry_trampoline code x86/pti: Fix a comment typo x86/microcode: Synchronize late microcode loading x86/microcode: Request microcode on the BSP x86/microcode/intel: Look into the patch cache first x86/microcode: Do not upload microcode if CPUs are offline x86/microcode/intel: Writeback and invalidate caches before updating microcode x86/microcode/intel: Check microcode revision before updating sibling threads x86/microcode: Get rid of struct apply_microcode_ctx x86/spectre_v2: Don't check microcode versions when running under hypervisors x86/vsyscall/64: Drop "native" vsyscalls x86/entry/64/compat: Save one instruction in entry_INT80_compat() x86/entry: Do not special-case clone(2) in compat entry x86/syscalls: Use COMPAT_SYSCALL_DEFINEx() macros for x86-only compat syscalls x86/syscalls: Use proper syscall definition for sys_ioperm() x86/entry: Remove stale syscall prototype x86/syscalls/32: Simplify $entry == $compat entries objtool: Fix 32-bit build
2018-03-11Merge branch 'for-mingo' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu Pull RCU updates from Paul E. McKenney: - Miscellaneous fixes, perhaps most notably removing obsolete code whose only purpose in life was to gather information for the now-removed RCU debugfs facility. Other notable changes include removing NO_HZ_FULL_ALL in favor of the nohz_full kernel boot parameter, minor optimizations for expedited grace periods, some added tracing, creating an RCU-specific workqueue using Tejun's new WQ_MEM_RECLAIM flag, and several cleanups to code and comments. - SRCU cleanups and optimizations. - Torture-test updates, perhaps most notably the adding of ARMv8 support, but also including numerous cleanups and usability fixes. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-03-10selftests: ftrace: Add inter-event hist triggers testcasesRajvi Jingar
This adds inter-event hist triggers testcases which covers following: - create/remove synthetic event - disable histogram for synthetic event - extended error support - field variable support - histogram variables - histogram trigger onmatch action - histogram trigger onmax action - histogram trigger onmatch-onmax action - simple expression support - combined histogram Here is the test result. === Ftrace unit tests === [1] event trigger - test extended error support [PASS] [2] event trigger - test field variable support [PASS] [3] event trigger - test inter-event combined histogram trigger [PASS] [4] event trigger - test inter-event histogram trigger onmatch action [PASS] [5] event trigger - test inter-event histogram trigger onmatch-onmax action [PASS] [6] event trigger - test inter-event histogram trigger onmax action [PASS] [7] event trigger - test synthetic event create remove [PASS] Link: http://lkml.kernel.org/r/e07ef1e72f7bf0f84dc87c9b736d6dc91b4b0b49.1516069914.git.tom.zanussi@linux.intel.com Signed-off-by: Rajvi Jingar <rajvi.jingar@intel.com> Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2018-03-09selftests/vm/run_vmtests: adjust hugetlb size according to nr_cpusLi Zhijian
Fix userfaultfd_hugetlb on hosts which have more than 64 cpus. --------------------------- running userfaultfd_hugetlb --------------------------- invalid MiB Usage: <MiB> <bounces> [FAIL] Via userfaultfd.c we can know, hugetlb_size needs to meet hugetlb_size >= nr_cpus * hugepage_size. hugepage_size is often 2M, so when host cpus > 64, it requires more than 128M. [zhijianx.li@intel.com: update changelog/comments and variable name] Link: http://lkml.kernel.org/r/20180302024356.83359-1-zhijianx.li@intel.com Link: http://lkml.kernel.org/r/20180303125027.81638-1-zhijianx.li@intel.com Link: http://lkml.kernel.org/r/20180302024356.83359-1-zhijianx.li@intel.com Signed-off-by: Li Zhijian <zhijianx.li@intel.com> Cc: Shuah Khan <shuah@kernel.org> Cc: SeongJae Park <sj38.park@gmail.com> Cc: Philippe Ombredanne <pombredanne@nexb.com> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-03-09Merge tag 'powerpc-4.16-5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: "One notable fix to properly advertise our support for a new firmware feature, caused by two series conflicting semantically but not textually. There's a new ioctl for the new ocxl driver, which is not a fix, but needed to complete the userspace API and good to have before the driver is in a released kernel. Finally three minor selftest fixes, and a fix for intermittent build failures for some obscure platforms, caused by a missing make dependency. Thanks to: Alastair D'Silva, Bharata B Rao, Guenter Roeck" * tag 'powerpc-4.16-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/pseries: Fix vector5 in ibm architecture vector table ocxl: Document the OCXL_IOCTL_GET_METADATA IOCTL ocxl: Add get_metadata IOCTL to share OCXL information to userspace selftests/powerpc: Skip the subpage_prot tests if the syscall is unavailable selftests/powerpc: Fix missing clean of pmu/lib.o powerpc/boot: Fix random libfdt related build errors selftests/powerpc: Skip tm-trap if transactional memory is not enabled
2018-03-09tools: tc-testing: Can pause just before post-suiteBrenda J. Butler
With option -P, the test script will pause just before the post_suite functions are called. This allows the tester to inspect the system before it is torn down. Signed-off-by: Brenda J. Butler <bjb@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-09tools: tc-testing: Can refer to $TESTID in test specBrenda J. Butler
When processing the commands in the test cases, substitute the test id for $TESTID. This helps to make more flexible tests. For example, the testid can be given as a command line argument. As an example, if we wish to save the test output to a file named for the test case, we can write in the test case: "cmdUnderTest": "some test command | tee -a $TESTID.out" Signed-off-by: Brenda J. Butler <bjb@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-09tc-testing: add csum testsRoman Mashak
Signed-off-by: Roman Mashak <mrv@mojatatu.com> Tested-by: Davide Caratti <dcaratti@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08selftests/net: enable fragments for fib-onlink-testsAnders Roxell
We miss CONFIG_* fragments so test fib-onlink-tests.sh can do: ip li add lisa type vrf table 1101 ip li add veth1 type veth peer name veth2 And the follow message occurs if it isn't enabled: Configuring interfaces RTNETLINK answers: Operation not supported This enables for NET_NRF (and friends) and VETH so we can create a vrf table and veth. Fixes: 153e1b84f477 ("selftests: Add FIB onlink tests") Signed-off-by: Anders Roxell <anders.roxell@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08x86/vsyscall/64: Drop "native" vsyscallsAndy Lutomirski
Since Linux v3.2, vsyscalls have been deprecated and slow. From v3.2 on, Linux had three vsyscall modes: "native", "emulate", and "none". "emulate" is the default. All known user programs work correctly in emulate mode, but vsyscalls turn into page faults and are emulated. This is very slow. In "native" mode, the vsyscall page is easily usable as an exploit gadget, but vsyscalls are a bit faster -- they turn into normal syscalls. (This is in contrast to vDSO functions, which can be much faster than syscalls.) In "none" mode, there are no vsyscalls. For all practical purposes, "native" was really just a chicken bit in case something went wrong with the emulation. It's been over six years, and nothing has gone wrong. Delete it. Signed-off-by: Andy Lutomirski <luto@kernel.org> Acked-by: Kees Cook <keescook@chromium.org> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Kernel Hardening <kernel-hardening@lists.openwall.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/519fee5268faea09ae550776ce969fa6e88668b0.1520449896.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-03-07selftests: forwarding: fix flags passed to first drop rule in ↵Jiri Pirko
gact_drop_and_ok_test Fix copy&paste error and pass proper flags. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07selftests: forwarding: fix "ok" action testJiri Pirko
Fix the "ok" action test so it checks that packet that is okayed does not continue to be processed by other rules. Fix error message as well. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07selftests: net: Introduce first PMTU testStefano Brivio
One single test implemented so far: test_pmtu_vti6_exception checks that the PMTU of a route exception, caused by a tunnel exceeding the link layer MTU, is affected by administrative changes of the tunnel MTU. Creation of the route exception is checked too. Requested-by: David Ahern <dsahern@gmail.com> Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Acked-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07selftests/net: fix in_netns.sh scriptPrashant Bhole
execute the subprocess in netns using 'ip netns exec' Fixes: cc30c93fa020 ("selftests/net: ignore background traffic in psock_fanout") Signed-off-by: Prashant Bhole <bhole_prashant_q7@lab.ntt.co.jp> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-07selftests: futex Makefile add top level TAP header echo to RUN_TESTSShuah Khan
Add top level TAP header echo, testname and separator line to make the output consistent with the common run_tests target. This change prevents nested TAP13 headers output from individual tests. Nested TAP13 headers could cause problems for some parsers. Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> Reviewed-by: Darren Hart (VMware) <dvhart@infradead.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2018-03-06nfit_test: prevent parsing error of nfit_test.0Ross Zwisler
When you load nfit_test you currently see the following error in dmesg: nfit_test nfit_test.0: found a zero length table '0' parsing nfit This happens because when we parse the nfit_test.0 table via acpi_nfit_init(), we specify a size of nfit_test->nfit_size. For the first pass through nfit_test.0 where (t->setup_hotplug == 0) this is the size of the entire buffer we allocated, including space for the hot plug structures, not the size that we've actually filled in. Fix this by only trying to parse the size of the structures that we've filled in. Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2018-03-06nfit_test: fix buffer overrun, add sanity checkRoss Zwisler
It turns out that we were overrunning the 'nfit_buf' buffer in nfit_test0_setup() in the (t->setup_hotplug == 1) case because we failed to correctly account for all of the acpi_nfit_memory_map structures. Fix the structure count which will increase the allocation size of 'nfit_buf' in nfit_test0_alloc(). Also add some WARN_ON()s to nfit_test0_setup() and nfit_test1_setup() to catch future issues where the size of the buffer doesn't match the amount of data we're writing. Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2018-03-06nfit_test: improve structure offset handlingRoss Zwisler
In nfit_test0_setup() and nfit_test1_setup() we keep an 'offset' value which we use to calculate where in our 'nfit_buf' we will place our next structure. The handling of 'offset' and the calculation of the placement of the next structure is a bit inconsistent, though. We don't update 'offset' after we insert each structure, sometimes causing us to update it for multiple structures' sizes at once. When calculating the position of the next structure we aren't always able to just use 'offset', but sometimes have to add in other structure sizes as well. Fix this by updating 'offset' after each structure insertion in a consistent way, allowing us to always calculate the position of the next structure to be inserted by just using 'nfit_buf + offset'. Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2018-03-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
All of the conflicts were cases of overlapping changes. In net/core/devlink.c, we have to make care that the resouce size_params have become a struct member rather than a pointer to such an object. Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-05selftests: Makefile set KSFT_TAP_LEVEL to prevent nested TAP headersShuah Khan
Export KSFT_TAP_LEVEL and add TAP Header echo to the run_kselftest.sh script from emit_tests target handling. Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2018-03-05selftests: lib.mk set KSFT_TAP_LEVEL to prevent nested TAP headersShuah Khan
Set KSFT_TAP_LEVEL before running tests to prevent nested TAP header printing from tests. Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2018-03-05selftests: kselftest framework: add handling for TAP header levelShuah Khan
Introduce environment variable KSFT_TAP_LEVEL to avoid printing nested TAP headers for each test. lib.mk run_tests target prints TAP header before invoking the test program or test script. Tests need a way to suppress TAP headers if it is already printed out. This new environment variable adds a way for ksft_print_header() print TAP header only when KSFT_TAP_LEVEL isn't set. lib.mk run_tests and test program should print TAP header and set KSFT_TAP_LEVEL to avoid a second TAP header to be printed. selftests Makefile should export KSFT_TAP_LEVEL and add TAP Header echo to the run_kselftest.sh script from emit_tests target handling. Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2018-03-05selftests: ion: Add simple test with the vgem driverLaura Abbott
Ion is designed to be a framework used by other clients who perform operations on the buffer. Use the DRM vgem client as a simple consumer. In conjunction with the dma-buf sync ioctls, this tests the full attach/map path for the system heap. Signed-off-by: Laura Abbott <labbott@redhat.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2018-03-05selftests: ion: Remove some printsLaura Abbott
There's no need to print messages each time we alloc and free. Remove them. Signed-off-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2018-03-05Merge tag 'linux-kselftest-4.16-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest fixes from Shuah Khan: "A fix for regression in memory-hotplug install script that prevents the test from running on the target" * tag 'linux-kselftest-4.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests: memory-hotplug: fix emit_tests regression
2018-03-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Use an appropriate TSQ pacing shift in mac80211, from Toke Høiland-Jørgensen. 2) Just like ipv4's ip_route_me_harder(), we have to use skb_to_full_sk in ip6_route_me_harder, from Eric Dumazet. 3) Fix several shutdown races and similar other problems in l2tp, from James Chapman. 4) Handle missing XDP flush properly in tuntap, for real this time. From Jason Wang. 5) Out-of-bounds access in powerpc ebpf tailcalls, from Daniel Borkmann. 6) Fix phy_resume() locking, from Andrew Lunn. 7) IFLA_MTU values are ignored on newlink for some tunnel types, fix from Xin Long. 8) Revert F-RTO middle box workarounds, they only handle one dimension of the problem. From Yuchung Cheng. 9) Fix socket refcounting in RDS, from Ka-Cheong Poon. 10) Don't allow ppp unit registration to an unregistered channel, from Guillaume Nault. 11) Various hv_netvsc fixes from Stephen Hemminger. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (98 commits) hv_netvsc: propagate rx filters to VF hv_netvsc: filter multicast/broadcast hv_netvsc: defer queue selection to VF hv_netvsc: use napi_schedule_irqoff hv_netvsc: fix race in napi poll when rescheduling hv_netvsc: cancel subchannel setup before halting device hv_netvsc: fix error unwind handling if vmbus_open fails hv_netvsc: only wake transmit queue if link is up hv_netvsc: avoid retry on send during shutdown virtio-net: re enable XDP_REDIRECT for mergeable buffer ppp: prevent unregistered channels from connecting to PPP units tc-testing: skbmod: fix match value of ethertype mlxsw: spectrum_switchdev: Check success of FDB add operation net: make skb_gso_*_seglen functions private net: xfrm: use skb_gso_validate_network_len() to check gso sizes net: sched: tbf: handle GSO_BY_FRAGS case in enqueue net: rename skb_gso_validate_mtu -> skb_gso_validate_network_len rds: Incorrect reference counting in TCP socket creation net: ethtool: don't ignore return from driver get_fecparam method vrf: check forwarding on the original netdevice when generating ICMP dest unreachable ...
2018-03-05selftests: forwarding: Add suppport to create veth interfacesDavid Ahern
For tests using veth interfaces, the test infrastructure can create the netdevs if they do not exist. Arguably this is a preferred approach since the tests require p$N and p$(N+1) to be pairs. Signed-off-by: David Ahern <dsahern@gmail.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-05selftests: Extend the tc action test for action mirrorArkadi Sharshevsky
Currently the tc action test is used only to test mirred redirect action. This patch extends it for mirred mirror. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-04tc-testing: skbmod: fix match value of ethertypeDavide Caratti
iproute2 print_skbmod() prints the configured ethertype using format 0x%X: therefore, test 9aa8 systematically fails, because it configures action #4 using ethertype 0x0031, and expects 0x0031 when it reads it back. Changing the expected value to 0x31 lets the test result 'not ok' become 'ok'. tested with: # ./tdc.py -e 9aa8 Test 9aa8: Get a single skbmod action from a list All test results: 1..1 ok 1 9aa8 Get a single skbmod action from a list Fixes: cf797ac49b94 ("tc-testing: Add test cases for police and skbmod") Signed-off-by: Davide Caratti <dcaratti@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-04selftests: rtnetlink: remove testns on test failPrashant Bhole
This patch removes testns after test failure so that next test can continue with clean ns Signed-off-by: Prashant Bhole <bhole_prashant_q7@lab.ntt.co.jp> Acked-by: William Tu <u9012063@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-04tools: tc-testing: Add notap optionBrenda J. Butler
Add a command line arg to suppress tap output. Handy in case all the tap output is being supplied by the plugins. Signed-off-by: Brenda J. Butler <bjb@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-04selftests: forwarding: Add multipath test for L4 hashingDavid Ahern
Add IPv6 multipath test using L4 hashing. Created with inputs from Ido Schimmel. Signed-off-by: David Ahern <dsahern@gmail.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Tested-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller
Daniel Borkmann says: ==================== pull-request: bpf-next 2018-03-03 The following pull-request contains BPF updates for your *net-next* tree. The main changes are: 1) Extend bpftool to build up CFG information of eBPF programs and add an option to dump this in DOT format such that this can later be used with DOT graphic tools (xdot, graphviz, etc) to visualize it. Part of the analysis performed is sub-program detection and basic-block partitioning, from Jiong. 2) Multiple enhancements for bpftool's batch mode, more specifically the parser now understands comments (#), continuation lines (\), and arguments enclosed between quotes. Also, allow to read from stdin via '-' as input file, all from Quentin. 3) Improve BPF kselftests by i) unifying the rlimit handling into a helper that is then used by all tests, and ii) add support for testing tail calls to test_verifier plus add tests covering all corner cases. The latter is especially useful for testing JITs, from Daniel. 4) Remove x64 JIT's bpf_flush_icache() since flush_icache_range() is a noop on x64, from Daniel. 5) Fix one more occasion in BPF samples where we do not detach the BPF program from the cgroup after completion, from Prashant. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-02selftests: memory-hotplug: fix emit_tests regressionShuah Khan
Commit 16c513b13477 ("selftests: memory-hotplug: silence test command echo") introduced regression in emit_tests and results in the following failure when selftests are installed and run. Fix it. Running tests in memory-hotplug ======================================== ./run_kselftest.sh: line 121: @./mem-on-off-test.sh: No such file or directory selftests: memory-hotplug [FAIL] Fixes: 16c513b13477 (selftests: memory-hotplug: silence test command echo") Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org> Tested-by: Anders Roxell <anders.roxell@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2018-03-01Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfDavid S. Miller
Daniel Borkmann says: ==================== pull-request: bpf 2018-02-28 The following pull-request contains BPF updates for your *net* tree. The main changes are: 1) Add schedule points and reduce the number of loop iterations the test_bpf kernel module is performing in order to not hog the CPU for too long, from Eric. 2) Fix an out of bounds access in tail calls in the ppc64 BPF JIT compiler, from Daniel. 3) Fix a crash on arm64 on unaligned BPF xadd operations that could be triggered via interpreter and JIT, from Daniel. Please not that once you merge net into net-next at some point, there is a minor merge conflict in test_verifier.c since test cases had been added at the end in both trees. Resolution is trivial: keep all the test cases from both trees. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-01selftests: forwarding: Add description to the multipath testsDavid Ahern
Add a better description to the summary for multipath tests. e.g., INFO: Running IPv6 multipath tests TEST: ECMP [PASS] INFO: Expected ratio 1.00 Measured ratio 1.02 TEST: Weighted MP 2:1 [PASS] INFO: Expected ratio 2.00 Measured ratio 2.02 TEST: Weighted MP 11:45 [PASS] INFO: Expected ratio 4.09 Measured ratio 4.03 Signed-off-by: David Ahern <dsahern@gmail.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-01selftests: forwarding: Use PING6 instead of ping for ipv6 multipath testDavid Ahern
On Debian jessie ping can not handle IPv6 addresses so the command fails. Use PING6 which is set to ping6. Signed-off-by: David Ahern <dsahern@gmail.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-01selftests: forwarding: Handle 0 for packet difference in multipath testsDavid Ahern
If the packet stats have a difference of 0, the test output shows: INFO: Expected ratio 2.00 Measured ratio Runtime error (func=(main), adr=9): Divide by zero (standard_in) 2: syntax error (standard_in) 1: syntax error ./router_multipath.sh: line 187: test: : integer expression expected TEST: Multipath [FAIL] Too large discrepancy between expected and measured ratios Handle the 0 and display a cleaner message: INFO: Running IPv6 multipath tests TEST: Multipath [FAIL] Packet difference is 0 Signed-off-by: David Ahern <dsahern@gmail.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-01selftests: forwarding: Only check tc version for tc testsDavid Ahern
Capabilities of tc command are irrelevant for router tests: $ ./router.sh SKIP: iproute2 too old, missing shared block support Add a CHECK_TC flag and only check tc capabilities if set. Add flag to tc_common.sh and have it sourced before lib.sh Also, if the command lacks some feature the test should exit non-0. Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-02selftests/powerpc: Skip the subpage_prot tests if the syscall is unavailableMichael Ellerman
The subpage_prot syscall is only functional when the system is using the Hash MMU. Since commit 5b2b80714796 ("powerpc/mm: Invalidate subpage_prot() system call on radix platforms") it returns ENOENT when the Radix MMU is active. Currently this just makes the test fail. Additionally the syscall is not available if the kernel is built with 4K pages, or if CONFIG_PPC_SUBPAGE_PROT=n, in which case it returns ENOSYS because the syscall is missing entirely. So check explicitly for ENOENT and ENOSYS and skip if we see either of those. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-02-28Merge tag 'linux-kselftest-4.16-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest fixes from Shuah Khan: "Fixes for various problems in test output, compile errors, and missing configs" * tag 'linux-kselftest-4.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests: vm: update .gitignore with new test selftests: memory-hotplug: silence test command echo selftests/futex: Fix line continuation in Makefile selftests: memfd: add config fragment for fuse selftests: pstore: Adding config fragment CONFIG_PSTORE_RAM=m selftests/android: Fix line continuation in Makefile selftest/vDSO: fix O= selftests: sync: missing CFLAGS while compiling
2018-02-28selftests: forwarding: Introduce basic shared blocks testsJiri Pirko
Test shared block infrastructure. This is a basic test that shares TC block in between 2 clsact qdiscs. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-28selftests: forwarding: Introduce basic tc chains testsJiri Pirko
Tests chains matching and goto chain action. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>