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2021-01-12bpf: Update local storage test to check handling of null ptrsKP Singh
It was found in [1] that bpf_inode_storage_get helper did not check the nullness of the passed owner ptr which caused an oops when dereferenced. This change incorporates the example suggested in [1] into the local storage selftest. The test is updated to create a temporary directory instead of just using a tempfile. In order to replicate the issue this copied rm binary is renamed tiggering the inode_rename with a null pointer for the new_inode. The logic to verify the setting and deletion of the inode local storage of the old inode is also moved to this LSM hook. The change also removes the copy_rm function and simply shells out to copy files and recursively delete directories and consolidates the logic of setting the initial inode storage to the bprm_committed_creds hook and removes the file_open hook. [1]: https://lore.kernel.org/bpf/CANaYP3HWkH91SN=wTNO9FL_2ztHfqcXKX38SSE-JJ2voh+vssw@mail.gmail.com Suggested-by: Gilad Reti <gilad.reti@gmail.com> Signed-off-by: KP Singh <kpsingh@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20210112075525.256820-2-kpsingh@kernel.org
2021-01-12selftests/x86: Use __builtin_ia32_read/writeeflagsAndy Lutomirski
The asm to read and write EFLAGS from userspace is horrible. The compiler builtins are now available on all supported compilers, so use them instead. (The compiler builtins are also unnecessarily ugly, but that's a more manageable level of ugliness.) Signed-off-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/aee4b1cdfc56083eb779ce927b7d3459aad2af76.1604346818.git.luto@kernel.org
2021-01-10selftests: netfilter: Pass family parameter "-f" to conntrack toolChen Yi
Fix nft_conntrack_helper.sh false fail report: 1) Conntrack tool need "-f ipv6" parameter to show out ipv6 traffic items. 2) Sleep 1 second after background nc send packet, to make sure check is after this statement executed. False report: FAIL: ns1-lkjUemYw did not show attached helper ip set via ruleset PASS: ns1-lkjUemYw connection on port 2121 has ftp helper attached ... After fix: PASS: ns1-2hUniwU2 connection on port 2121 has ftp helper attached PASS: ns2-2hUniwU2 connection on port 2121 has ftp helper attached ... Fixes: 619ae8e0697a6 ("selftests: netfilter: add test case for conntrack helper assignment") Signed-off-by: Chen Yi <yiche@redhat.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-01-09selftests: mptcp: add the MP_PRIO testcasesGeliang Tang
This patch added the MP_PRIO testcases: Add a new argument bkup for run_tests and do_transfer, it can be set as "backup" or "nobackup", the default value is "". Add a new function chk_prio_nr to check the MP_PRIO related MIB counters. The output looks like this: 29 single subflow, backup syn[ ok ] - synack[ ok ] - ack[ ok ] ptx[ ok ] - prx [ ok ] 30 single address, backup syn[ ok ] - synack[ ok ] - ack[ ok ] add[ ok ] - echo [ ok ] ptx[ ok ] - prx [ ok ] Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-09selftests: mptcp: add set_flags command in pm_nl_ctlGeliang Tang
This patch added the set_flags command in pm_nl_ctl, currently we can only set two flags: backup and nobackup. The set_flags command can be used like this: # pm_nl_ctl set 10.0.0.1 flags backup # pm_nl_ctl set 10.0.0.1 flags nobackup Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-09selftests: mptcp: add testcases for setting the address IDGeliang Tang
Since the address ID can be set from user-space, some of the tests in pm_netlink.sh will fail. This patch fixed the failures, and add the testcases for setting the address ID. Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-09selftests/tls: fix selftests after adding ChaCha20-Poly1305Vadim Fedorenko
TLS selftests where broken because of wrong variable types used. Fix it by changing u16 -> uint16_t Fixes: 4f336e88a870 ("selftests/tls: add CHACHA20-POLY1305 to tls selftests") Reported-by: kernel test robot <oliver.sang@intel.com> Signed-off-by: Vadim Fedorenko <vfedorenko@novek.ru> Link: https://lore.kernel.org/r/1610141865-7142-1-git-send-email-vfedorenko@novek.ru Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-08Merge tag 'linux-kselftest-kunit-fixes-5.11-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kunit fixes from Shuah Khan: "One fix to force the use of the 'tty' console for UML. Given that kunit tool requires the console output, explicitly stating the dependency makes sense than relying on it being the default" * tag 'linux-kselftest-kunit-fixes-5.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: kunit: tool: Force the use of the 'tty' console for UML
2021-01-08Merge tag 'linux-kselftest-next-5.11-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest fixes from Shuah Khan: "Two minor fixes to vDSO test changes in this merge window" * tag 'linux-kselftest-next-5.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests/vDSO: fix -Wformat warning in vdso_test_correctness selftests/vDSO: add additional binaries to .gitignore
2021-01-08Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm fixes from Paolo Bonzini: "x86: - Fixes for the new scalable MMU - Fixes for migration of nested hypervisors on AMD - Fix for clang integrated assembler - Fix for left shift by 64 (UBSAN) - Small cleanups - Straggler SEV-ES patch ARM: - VM init cleanups - PSCI relay cleanups - Kill CONFIG_KVM_ARM_PMU - Fixup __init annotations - Fixup reg_to_encoding() - Fix spurious PMCR_EL0 access Misc: - selftests cleanups" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (38 commits) KVM: x86: __kvm_vcpu_halt can be static KVM: SVM: Add support for booting APs in an SEV-ES guest KVM: nSVM: cancel KVM_REQ_GET_NESTED_STATE_PAGES on nested vmexit KVM: nSVM: mark vmcb as dirty when forcingly leaving the guest mode KVM: nSVM: correctly restore nested_run_pending on migration KVM: x86/mmu: Clarify TDP MMU page list invariants KVM: x86/mmu: Ensure TDP MMU roots are freed after yield kvm: check tlbs_dirty directly KVM: x86: change in pv_eoi_get_pending() to make code more readable MAINTAINERS: Really update email address for Sean Christopherson KVM: x86: fix shift out of bounds reported by UBSAN KVM: selftests: Implement perf_test_util more conventionally KVM: selftests: Use vm_create_with_vcpus in create_vm KVM: selftests: Factor out guest mode code KVM/SVM: Remove leftover __svm_vcpu_run prototype from svm.c KVM: SVM: Add register operand to vmsave call in sev_es_vcpu_load KVM: x86/mmu: Optimize not-present/MMIO SPTE check in get_mmio_spte() KVM: x86/mmu: Use raw level to index into MMIO walks' sptes array KVM: x86/mmu: Get root level from walkers when retrieving MMIO SPTE KVM: x86/mmu: Use -1 to flag an undefined spte in get_mmio_spte() ...
2021-01-08libbpf: Clarify kernel type use with USER variants of CORE reading macrosAndrii Nakryiko
Add comments clarifying that USER variants of CO-RE reading macro are still only going to work with kernel types, defined in kernel or kernel module BTF. This should help preventing invalid use of those macro to read user-defined types (which doesn't work with CO-RE). Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20210108194408.3468860-1-andrii@kernel.org
2021-01-08selftests/bpf: Remove duplicate include in test_lsmMenglong Dong
'unistd.h' included in 'selftests/bpf/prog_tests/test_lsm.c' is duplicated. Signed-off-by: Menglong Dong <dong.menglong@zte.com.cn> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Martin KaFai Lau <kafai@fb.com> Link: https://lore.kernel.org/bpf/20210105152047.6070-1-dong.menglong@zte.com.cn Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2021-01-08selftests/bpf: Add tests for user- and non-CO-RE BPF_CORE_READ() variantsAndrii Nakryiko
Add selftests validating that newly added variations of BPF_CORE_READ(), for use with user-space addresses and for non-CO-RE reads, work as expected. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20201218235614.2284956-4-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2021-01-08libbpf: Add non-CO-RE variants of BPF_CORE_READ() macro familyAndrii Nakryiko
BPF_CORE_READ(), in addition to handling CO-RE relocations, also allows much nicer way to read data structures with nested pointers. Instead of writing a sequence of bpf_probe_read() calls to follow links, one can just write BPF_CORE_READ(a, b, c, d) to effectively do a->b->c->d read. This is a welcome ability when porting BCC code, which (in most cases) allows exactly the intuitive a->b->c->d variant. This patch adds non-CO-RE variants of BPF_CORE_READ() family of macros for cases where CO-RE is not supported (e.g., old kernels). In such cases, the property of shortening a sequence of bpf_probe_read()s to a simple BPF_PROBE_READ(a, b, c, d) invocation is still desirable, especially when porting BCC code to libbpf. Yet, no CO-RE relocation is going to be emitted. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20201218235614.2284956-3-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2021-01-08libbpf: Add user-space variants of BPF_CORE_READ() family of macrosAndrii Nakryiko
Add BPF_CORE_READ_USER(), BPF_CORE_READ_USER_STR() and their _INTO() variations to allow reading CO-RE-relocatable kernel data structures from the user-space. One of such cases is reading input arguments of syscalls, while reaping the benefits of CO-RE relocations w.r.t. handling 32/64 bit conversions and handling missing/new fields in UAPI data structs. Suggested-by: Gilad Reti <gilad.reti@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20201218235614.2284956-2-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2021-01-07selftests: fib_nexthops: Fix wrong mausezahn invocationIdo Schimmel
For IPv6 traffic, mausezahn needs to be invoked with '-6'. Otherwise an error is returned: # ip netns exec me mausezahn veth1 -B 2001:db8:101::2 -A 2001:db8:91::1 -c 0 -t tcp "dp=1-1023, flags=syn" Failed to set source IPv4 address. Please check if source is set to a valid IPv4 address. Invalid command line parameters! Fixes: 7c741868ceab ("selftests: Add torture tests to nexthop tests") Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-07Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfJakub Kicinski
Alexei Starovoitov says: ==================== pull-request: bpf 2021-01-07 We've added 4 non-merge commits during the last 10 day(s) which contain a total of 4 files changed, 14 insertions(+), 7 deletions(-). The main changes are: 1) Fix task_iter bug caused by the merge conflict resolution, from Yonghong. 2) Fix resolve_btfids for multiple type hierarchies, from Jiri. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: bpftool: Fix compilation failure for net.o with older glibc tools/resolve_btfids: Warn when having multiple IDs for single type bpf: Fix a task_iter bug caused by a merge conflict resolution selftests/bpf: Fix a compile error for BPF_F_BPRM_SECUREEXEC ==================== Link: https://lore.kernel.org/r/20210107221555.64959-1-alexei.starovoitov@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-07KVM: selftests: Implement perf_test_util more conventionallyAndrew Jones
It's not conventional C to put non-inline functions in header files. Create a source file for the functions instead. Also reduce the amount of globals and rename the functions to something less generic. Reviewed-by: Ben Gardon <bgardon@google.com> Reviewed-by: Peter Xu <peterx@redhat.com> Signed-off-by: Andrew Jones <drjones@redhat.com> Message-Id: <20201218141734.54359-4-drjones@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-01-07KVM: selftests: Use vm_create_with_vcpus in create_vmAndrew Jones
Reviewed-by: Ben Gardon <bgardon@google.com> Signed-off-by: Andrew Jones <drjones@redhat.com> Message-Id: <20201218141734.54359-3-drjones@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-01-07KVM: selftests: Factor out guest mode codeAndrew Jones
demand_paging_test, dirty_log_test, and dirty_log_perf_test have redundant guest mode code. Factor it out. Also, while adding a new include, remove the ones we don't need. Reviewed-by: Ben Gardon <bgardon@google.com> Reviewed-by: Peter Xu <peterx@redhat.com> Signed-off-by: Andrew Jones <drjones@redhat.com> Message-Id: <20201218141734.54359-2-drjones@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-01-07Merge branch 'kvm-master' into kvm-nextPaolo Bonzini
Fixes to get_mmio_spte, destined to 5.10 stable branch.
2021-01-07selftests: netfilter: add selftest for ipip pmtu discovery with enabled ↵Florian Westphal
connection tracking Convert Christians bug description into a reproducer. Cc: Shuah Khan <shuah@kernel.org> Reported-by: Christian Perle <christian.perle@secunet.com> Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-07tools: selftests: add test for changing routes with PTMU exceptionsSean Tranchetti
Adds new 2 new tests to the PTMU script: pmtu_ipv4/6_route_change. These tests explicitly test for a recently discovered problem in the IPv6 routing framework where PMTU exceptions were not properly released when replacing a route via "ip route change ...". After creating PMTU exceptions, the route from the device A to R1 will be replaced with a new route, then device A will be deleted. If the PMTU exceptions were properly cleaned up by the kernel, this device deletion will succeed. Otherwise, the unregistration of the device will stall, and messages such as the following will be logged in dmesg: unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 4 Signed-off-by: Sean Tranchetti <stranche@codeaurora.org> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/1609892546-11389-2-git-send-email-stranche@quicinc.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-06torture: Compress KASAN vmlinux filesPaul E. McKenney
The sizes of vmlinux files built with KASAN enabled can approach a full gigabyte, which can result in disk overflow sooner rather than later. Fortunately, the xz command compresses them by almost an order of magnitude. This commit therefore uses xz to compress vmlinux file built by torture.sh with KASAN enabled. However, xz is not the fastest thing in the world. In fact, it is way slower than rotating-rust mass storage. This commit therefore also adds a --compress-kasan-vmlinux argument to specify the degree of xz concurrency, which defaults to using all available CPUs if there are that many files in need of compression. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-06torture: Add --kcsan-kmake-arg to torture.sh for KCSANPaul E. McKenney
In 2020, running KCSAN often requires careful choice of compiler. This commit therefore adds a --kcsan-kmake-arg parameter to torture.sh to allow specifying (for example) "CC=clang" to the kernel build process to correctly build a KCSAN-enabled kernel. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-06torture: Add command and results directory to torture.sh logPaul E. McKenney
This commit adds the command and arguments to the torture.sh log file, and also outputs the results directory. This latter allows impatient users to quickly find the results that are being generated by the current run. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-06torture: Allow scenarios to be specified to torture.shPaul E. McKenney
This commit adds --configs-rcutorture, --configs-locktorture, and --configs-scftorture arguments to torture.sh, allowing the desired set of scenarios to be passed to each. The default for each has been changed from a large-system-appropriate set to just CFLIST for each. Users are encouraged to create scripts that provide appropriate settings for their specific systems. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-06torture: Drop log.long generation from torture.shPaul E. McKenney
Now that kvm.sh puts all the relevant details in the "log" file, there is no need for torture.sh to generate a separate "log.long" file. This commit therefore drops this from torture.sh. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-06torture: Make torture.sh refuse to do zero-length runsPaul E. McKenney
This commit causes torture.sh to check for zero-length runs and to take the cowardly option of refusing to run them, logging its cowardice for later inspection. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-06torture: Make torture.sh throttle VERBOSE_TOROUT_*() for refscalePaul E. McKenney
This commit causes torture.sh to use the torture.verbose_sleep_frequency kernel boot parameter to throttle verbose refscale output on large systems. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-06torture: Make torture.sh allmodconfig retain and label outputPaul E. McKenney
This commit places "---" markers in the torture.sh script's allmodconfig output, and uses "<<" to avoid overwriting earlier output from this build test. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-06torture: Create doyesno helper function for torture.shPaul E. McKenney
This commit saves a few lines of code by creating a doyesno helper bash function for argument parsing. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-06torture: Make torture.sh refscale runs use verbose_batched module parameterPaul E. McKenney
On large systems, the refscale printk() rate can overrun the file system's ability to accept console log messages. This commit therefore uses the new verbose_batched module parameter to rate-limit some of the higher-rate printk() calls. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-06torture: Make torture.sh rcuscale and refscale deal with allmodconfigPaul E. McKenney
The .mod.c files created by allmodconfig builds interfers with the approach torture.sh uses to enumerate types of rcuscale and refscale runs. This commit therefore tightens the pattern matching to avoid this interference. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-06torture: Enable torture.sh argument checkingPaul E. McKenney
This commit uncomments the argument checking for the --duration argument to torture.sh. While in the area, it also corrects the duration units from seconds to minutes. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-06torture: Auto-size SCF and scaling runs based on number of CPUsPaul E. McKenney
This commit improves torture.sh flexibility by autoscaling the number of CPUs to be used in variable-CPUs torture tests, including scftorture, refscale, rcuscale, and kvfree. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-06torture: Add "make allmodconfig" to torture.shPaul E. McKenney
This commit adds the ability to do "make allmodconfig" to torture.sh, given that normal rcutorture runs do not normally catch missing exports. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-06torture: Remove use of "eval" in torture.shPaul E. McKenney
The bash "eval" command enables Bobby Tables attacks, which might not be a concern in torture testing by themselves, but one could imagine these combined with a cut-and-paste attack. This commit therefore gets rid of them. This comes at a price in terms of bash quoting not working nicely, so the "--bootargs" argument lists are now passed to torture_one via a bash-variable side channel. This might be a bit ugly, but it will also allow torture.sh to grow its own --bootargs parameter. While in the area, add proper header comments for the bash functions. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-06torture: Make torture.sh use common time-duration bash functionsPaul E. McKenney
This commit makes torture.sh use the new bash functions get_starttime() and get_starttime_duration() created for kvm.sh. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-06torture: Add torture.sh torture-everything scriptPaul E. McKenney
Although tailoring a specific set of kvm.sh runs has served rcutorture testing well over many years, it requires a relatively distraction-free environment, which is not always available. This commit therefore adds a prototype torture.sh script that by default tortures pretty much everything the rcutorture scripting is designed to torture, and which can be given command-line arguments to take a more focused approach. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-06tools/rcutorture: Support nocb toggle in TREE01Frederic Weisbecker
This commit adds periodic toggling of 7 of 8 CPUs every second to TREE01 in order to test NOCB toggle code. Cc: Josh Triplett <josh@joshtriplett.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Lai Jiangshan <jiangshanlai@gmail.com> Cc: Joel Fernandes <joel@joelfernandes.org> Cc: Neeraj Upadhyay <neeraju@codeaurora.org> Cc: Thomas Gleixner <tglx@linutronix.de> Inspired-by: Paul E. McKenney <paulmck@kernel.org> Tested-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-06bpftool: Fix compilation failure for net.o with older glibcAlan Maguire
For older glibc ~2.17, #include'ing both linux/if.h and net/if.h fails due to complaints about redefinition of interface flags: CC net.o In file included from net.c:13:0: /usr/include/linux/if.h:71:2: error: redeclaration of enumerator ‘IFF_UP’ IFF_UP = 1<<0, /* sysfs */ ^ /usr/include/net/if.h:44:5: note: previous definition of ‘IFF_UP’ was here IFF_UP = 0x1, /* Interface is up. */ The issue was fixed in kernel headers in [1], but since compilation of net.c picks up system headers the problem can recur. Dropping #include <linux/if.h> resolves the issue and it is not needed for compilation anyhow. [1] https://lore.kernel.org/netdev/1461512707-23058-1-git-send-email-mikko.rapeli__34748.27880641$1462831734$gmane$org@iki.fi/ Fixes: f6f3bac08ff9 ("tools/bpf: bpftool: add net support") Signed-off-by: Alan Maguire <alan.maguire@oracle.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Martin KaFai Lau <kafai@fb.com> Link: https://lore.kernel.org/bpf/1609948746-15369-1-git-send-email-alan.maguire@oracle.com
2021-01-05tools/resolve_btfids: Warn when having multiple IDs for single typeJiri Olsa
The kernel image can contain multiple types (structs/unions) with the same name. This causes distinct type hierarchies in BTF data and makes resolve_btfids fail with error like: BTFIDS vmlinux FAILED unresolved symbol udp6_sock as reported by Qais Yousef [1]. This change adds warning when multiple types of the same name are detected: BTFIDS vmlinux WARN: multiple IDs found for 'file': 526, 113351 - using 526 WARN: multiple IDs found for 'sk_buff': 2744, 113958 - using 2744 We keep the lower ID for the given type instance and let the build continue. Also changing the 'nr' variable name to 'nr_types' to avoid confusion. [1] https://lore.kernel.org/lkml/20201229151352.6hzmjvu3qh6p2qgg@e107158-lin/ Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210105234219.970039-1-jolsa@kernel.org
2021-01-05selftests: fix the return value for UDP GRO testPo-Hsu Lin
The udpgro.sh will always return 0 (unless the bpf selftest was not build first) even if there are some failed sub test-cases. Therefore the kselftest framework will report this case is OK. Check and return the exit status of each test to make it easier to spot real failures. Signed-off-by: Po-Hsu Lin <po-hsu.lin@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-01-05Merge tag 'net-5.11-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Networking fixes, including fixes from netfilter, wireless and bpf trees. Current release - regressions: - mt76: fix NULL pointer dereference in mt76u_status_worker and mt76s_process_tx_queue - net: ipa: fix interconnect enable bug Current release - always broken: - netfilter: fixes possible oops in mtype_resize in ipset - ath11k: fix number of coding issues found by static analysis tools and spurious error messages Previous releases - regressions: - e1000e: re-enable s0ix power saving flows for systems with the Intel i219-LM Ethernet controllers to fix power use regression - virtio_net: fix recursive call to cpus_read_lock() to avoid a deadlock - ipv4: ignore ECN bits for fib lookups in fib_compute_spec_dst() - sysfs: take the rtnl lock around XPS configuration - xsk: fix memory leak for failed bind and rollback reservation at NETDEV_TX_BUSY - r8169: work around power-saving bug on some chip versions Previous releases - always broken: - dcb: validate netlink message in DCB handler - tun: fix return value when the number of iovs exceeds MAX_SKB_FRAGS to prevent unnecessary retries - vhost_net: fix ubuf refcount when sendmsg fails - bpf: save correct stopping point in file seq iteration - ncsi: use real net-device for response handler - neighbor: fix div by zero caused by a data race (TOCTOU) - bareudp: fix use of incorrect min_headroom size and a false positive lockdep splat from the TX lock - mvpp2: - clear force link UP during port init procedure in case bootloader had set it - add TCAM entry to drop flow control pause frames - fix PPPoE with ipv6 packet parsing - fix GoP Networking Complex Control config of port 3 - fix pkt coalescing IRQ-threshold configuration - xsk: fix race in SKB mode transmit with shared cq - ionic: account for vlan tag len in rx buffer len - stmmac: ignore the second clock input, current clock framework does not handle exclusive clock use well, other drivers may reconfigure the second clock Misc: - ppp: change PPPIOCUNBRIDGECHAN ioctl request number to follow existing scheme" * tag 'net-5.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (99 commits) net: dsa: lantiq_gswip: Fix GSWIP_MII_CFG(p) register access net: dsa: lantiq_gswip: Enable GSWIP_MII_CFG_EN also for internal PHYs net: lapb: Decrease the refcount of "struct lapb_cb" in lapb_device_event r8169: work around power-saving bug on some chip versions net: usb: qmi_wwan: add Quectel EM160R-GL selftests: mlxsw: Set headroom size of correct port net: macb: Correct usage of MACB_CAPS_CLK_HW_CHG flag ibmvnic: fix: NULL pointer dereference. docs: networking: packet_mmap: fix old config reference docs: networking: packet_mmap: fix formatting for C macros vhost_net: fix ubuf refcount incorrectly when sendmsg fails bareudp: Fix use of incorrect min_headroom size bareudp: set NETIF_F_LLTX flag net: hdlc_ppp: Fix issues when mod_timer is called while timer is running atlantic: remove architecture depends erspan: fix version 1 check in gre_parse_header() net: hns: fix return value check in __lb_other_process() net: sched: prevent invalid Scell_log shift count net: neighbor: fix a crash caused by mod zero ipv4: Ignore ECN bits for fib lookups in fib_compute_spec_dst() ...
2021-01-05torture: Do Kconfig analysis only once per scenarioPaul E. McKenney
Currently, if a scenario is repeated as in "--configs '4*TREE01'", the Kconfig analysis is performed for each occurrance (four times in this example) and each analysis places the exact same data into the exact same files. This is not really an issue in this repetition-four example, but it can needlessly consume tens of seconds of wallclock time for something like "--config '128*TINY01'". This commit therefore does Kconfig analysis only once per set of repeats of a given scenario, courtesy of the "sort -u" command and an automatically generated awk script. While in the area, this commit also wordsmiths a comment. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-05cpupower: add Makefile dependencies for install targetsIvan Babrou
This allows building cpupower in parallel rather than serially. Signed-off-by: Ivan Babrou <ivan@cloudflare.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2021-01-04tools/memory-model: Fix typo in klitmus7 compatibility tableAkira Yokosawa
klitmus7 of herdtools7 7.48 or earlier depends on ACCESS_ONCE(), which was removed in Linux v4.15. Fix the obvious typo in the table. Fixes: d075a78a5ab1 ("tools/memory-model/README: Expand dependency of klitmus7") Signed-off-by: Akira Yokosawa <akiyks@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-04tools/memory-model: Remove redundant initialization in litmus testsAkira Yokosawa
This is a revert of commit 1947bfcf81a9 ("tools/memory-model: Add types to litmus tests") with conflict resolutions. klitmus7 [1] is aware of default types of "int" and "int*". It accepts litmus tests for herd7 without extra type info unless non-"int" variables are referenced by an "exists", "locations", or "filter" directive. [1]: Tested with klitmus7 versions 7.49 or later. Suggested-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Akira Yokosawa <akiyks@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-01-04tools/memory-model: Tie acquire loads to reads-fromPaul E. McKenney
This commit explicitly makes the connection between acquire loads and the reads-from relation. It also adds an entry for happens-before, and refers to the corresponding section of explanation.txt. Reported-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
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