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2021-02-18Merge tag 'v5.11' into rdma.git for-nextJason Gunthorpe
Linux 5.11 Merged to resolve conflicts with RDMA rc commits - drivers/infiniband/sw/rxe/rxe_net.c The final logic is to call rxe_get_dev_from_net() again with the master netdev if the packet was rx'd on a vlan. To keep the elimination of the local variables requires a trivial edit to the code in -rc Link: https://lore.kernel.org/r/20210210131542.215ea67c@canb.auug.org.au Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-02-16net: re-solve some conflicts after net -> net-next mergeJakub Kicinski
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-02-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller
2021-02-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller
Daniel Borkmann says: ==================== pull-request: bpf-next 2021-02-16 The following pull-request contains BPF updates for your *net-next* tree. There's a small merge conflict between 7eeba1706eba ("tcp: Add receive timestamp support for receive zerocopy.") from net-next tree and 9cacf81f8161 ("bpf: Remove extra lock_sock for TCP_ZEROCOPY_RECEIVE") from bpf-next tree. Resolve as follows: [...] lock_sock(sk); err = tcp_zerocopy_receive(sk, &zc, &tss); err = BPF_CGROUP_RUN_PROG_GETSOCKOPT_KERN(sk, level, optname, &zc, &len, err); release_sock(sk); [...] We've added 116 non-merge commits during the last 27 day(s) which contain a total of 156 files changed, 5662 insertions(+), 1489 deletions(-). The main changes are: 1) Adds support of pointers to types with known size among global function args to overcome the limit on max # of allowed args, from Dmitrii Banshchikov. 2) Add bpf_iter for task_vma which can be used to generate information similar to /proc/pid/maps, from Song Liu. 3) Enable bpf_{g,s}etsockopt() from all sock_addr related program hooks. Allow rewriting bind user ports from BPF side below the ip_unprivileged_port_start range, both from Stanislav Fomichev. 4) Prevent recursion on fentry/fexit & sleepable programs and allow map-in-map as well as per-cpu maps for the latter, from Alexei Starovoitov. 5) Add selftest script to run BPF CI locally. Also enable BPF ringbuffer for sleepable programs, both from KP Singh. 6) Extend verifier to enable variable offset read/write access to the BPF program stack, from Andrei Matei. 7) Improve tc & XDP MTU handling and add a new bpf_check_mtu() helper to query device MTU from programs, from Jesper Dangaard Brouer. 8) Allow bpf_get_socket_cookie() helper also be called from [sleepable] BPF tracing programs, from Florent Revest. 9) Extend x86 JIT to pad JMPs with NOPs for helping image to converge when otherwise too many passes are required, from Gary Lin. 10) Verifier fixes on atomics with BPF_FETCH as well as function-by-function verification both related to zero-extension handling, from Ilya Leoshkevich. 11) Better kernel build integration of resolve_btfids tool, from Jiri Olsa. 12) Batch of AF_XDP selftest cleanups and small performance improvement for libbpf's xsk map redirect for newer kernels, from Björn Töpel. 13) Follow-up BPF doc and verifier improvements around atomics with BPF_FETCH, from Brendan Jackman. 14) Permit zero-sized data sections e.g. if ELF .rodata section contains read-only data from local variables, from Yonghong Song. 15) veth driver skb bulk-allocation for ndo_xdp_xmit, from Lorenzo Bianconi. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-16kcmp: Support selection of SYS_kcmp without CHECKPOINT_RESTOREChris Wilson
Userspace has discovered the functionality offered by SYS_kcmp and has started to depend upon it. In particular, Mesa uses SYS_kcmp for os_same_file_description() in order to identify when two fd (e.g. device or dmabuf) point to the same struct file. Since they depend on it for core functionality, lift SYS_kcmp out of the non-default CONFIG_CHECKPOINT_RESTORE into the selectable syscall category. Rasmus Villemoes also pointed out that systemd uses SYS_kcmp to deduplicate the per-service file descriptor store. Note that some distributions such as Ubuntu are already enabling CHECKPOINT_RESTORE in their configs and so, by extension, SYS_kcmp. References: https://gitlab.freedesktop.org/drm/intel/-/issues/3046 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Kees Cook <keescook@chromium.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Will Drewry <wad@chromium.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Dave Airlie <airlied@gmail.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Cyrill Gorcunov <gorcunov@gmail.com> Cc: stable@vger.kernel.org Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> # DRM depends on kcmp Acked-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> # systemd uses kcmp Reviewed-by: Cyrill Gorcunov <gorcunov@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210205220012.1983-1-chris@chris-wilson.co.uk
2021-02-15selftests: kvm: avoid uninitialized variable warningPaolo Bonzini
The variable in practice will never be uninitialized, because the loop will always go through at least one iteration. In case it would not, make vcpu_get_cpuid report an assertion failure. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-02-15selftests: kvm: add hardware_disable testIgnacio Alvarado
This test launches 512 VMs in serial and kills them after a random amount of time. The test was original written to exercise KVM user notifiers in the context of1650b4ebc99d: - KVM: Disable irq while unregistering user notifier - https://lore.kernel.org/kvm/CACXrx53vkO=HKfwWwk+fVpvxcNjPrYmtDZ10qWxFvVX_PTGp3g@mail.gmail.com/ Recently, this test piqued my interest because it proved useful to for AMD SNP in exercising the "in-use" pages, described in APM section 15.36.12, "Running SNP-Active Virtual Machines". Signed-off-by: Ignacio Alvarado <ikalvarado@google.com> Signed-off-by: Marc Orr <marcorr@google.com> Message-Id: <20210213001452.1719001-1-marcorr@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-02-15selftests: gpio: add CONFIG_GPIO_CDEV to configKent Gibson
GPIO CDEV is now optional and required for the selftests so add it to the config. Signed-off-by: Kent Gibson <warthog618@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-02-15selftests: gpio: port to GPIO uAPI v2Kent Gibson
Add a port to the GPIO uAPI v2 interface and make it the default. Signed-off-by: Kent Gibson <warthog618@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-02-15selftests: remove obsolete gpio references from kselftest_deps.shKent Gibson
GPIO Makefile has been greatly simplified so remove references to lines which no longer exist. Signed-off-by: Kent Gibson <warthog618@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-02-15selftests: remove obsolete build restriction for gpioKent Gibson
Build restrictions related to the gpio-mockup-chardev helper are no longer relevant so remove them. Signed-off-by: Kent Gibson <warthog618@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-02-15selftests: gpio: remove obsolete gpio-mockup-chardev.cKent Gibson
GPIO selftests have changed to new gpio-mockup-cdev helper, so remove old gpio-mockup-chardev helper. Signed-off-by: Kent Gibson <warthog618@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-02-15selftests: gpio: rework and simplify test implementationKent Gibson
The GPIO mockup selftests are overly complicated with separate implementations of the tests for sysfs and cdev uAPI, and with the cdev implementation being dependent on tools/gpio and libmount. Rework the test implementation to provide a common test suite with a simplified pluggable uAPI interface. The cdev implementation utilises the GPIO uAPI directly to remove the dependence on tools/gpio. The simplified uAPI interface removes the need for any file system mount checks in C, and so removes the dependence on libmount. The rework also fixes the sysfs test implementation which has been broken since the device created in the multiple gpiochip case was split into separate devices. Fixes: 8a39f597bcfd ("gpio: mockup: rework device probing") Signed-off-by: Kent Gibson <warthog618@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-02-15kselftest: add support for skipped testsTimur Tabi
Update the kselftest framework to allow client drivers to specify that some tests were skipped. Signed-off-by: Timur Tabi <timur@kernel.org> Reviewed-by: Petr Mladek <pmladek@suse.com> Tested-by: Petr Mladek <pmladek@suse.com> Acked-by: Marco Elver <elver@google.com> Signed-off-by: Petr Mladek <pmladek@suse.com> Link: https://lore.kernel.org/r/20210214161348.369023-3-timur@kernel.org
2021-02-12selftests/bpf: Add unit tests for pointers in global functionsDmitrii Banshchikov
test_global_func9 - check valid pointer's scenarios test_global_func10 - check that a smaller type cannot be passed as a larger one test_global_func11 - check that CTX pointer cannot be passed test_global_func12 - check access to a null pointer test_global_func13 - check access to an arbitrary pointer value test_global_func14 - check that an opaque pointer cannot be passed test_global_func15 - check that a variable has an unknown value after it was passed to a global function by pointer test_global_func16 - check access to uninitialized stack memory test_global_func_args - check read and write operations through a pointer Signed-off-by: Dmitrii Banshchikov <me@ubique.spb.ru> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210212205642.620788-5-me@ubique.spb.ru
2021-02-12selftests: tc: Add generic mpls matching support for tc-flowerGuillaume Nault
Add tests in tc_flower.sh for generic matching on MPLS Label Stack Entries. The label, tc, bos and ttl fields are tested for the first and second labels. For each field, the minimal and maximal values are tested (the former at depth 1 and the later at depth 2). There are also tests for matching the presence of a label stack entry at a given depth. In order to reduce the amount of code, all "lse" subcommands are tested in match_mpls_lse_test(). Action "continue" is used, so that test packets are evaluated by all filters. Then, we can verify if each filter matched the expected number of packets. Some versions of tc-flower produced invalid json output when dumping MPLS filters with depth > 1. Skip the test if tc isn't recent enough. Signed-off-by: Guillaume Nault <gnault@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-12selftests: tc: Add basic mpls_* matching support for tc-flowerGuillaume Nault
Add tests in tc_flower.sh for mpls_label, mpls_tc, mpls_bos and mpls_ttl. For each keyword, test the minimal and maximal values. Selectively skip these new mpls tests for tc versions that don't support them. Signed-off-by: Guillaume Nault <gnault@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-12flow_dissector: fix TTL and TOS dissection on IPv4 fragmentsDavide Caratti
the following command: # tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \ $tcflags dst_ip 192.0.2.2 ip_ttl 63 action drop doesn't drop all IPv4 packets that match the configured TTL / destination address. In particular, if "fragment offset" or "more fragments" have non zero value in the IPv4 header, setting of FLOW_DISSECTOR_KEY_IP is simply ignored. Fix this dissecting IPv4 TTL and TOS before fragment info; while at it, add a selftest for tc flower's match on 'ip_ttl' that verifies the correct behavior. Fixes: 518d8a2e9bad ("net/flow_dissector: add support for dissection of misc ip header fields") Reported-by: Shuang Li <shuali@redhat.com> Signed-off-by: Davide Caratti <dcaratti@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-12selftests: mptcp: fail if not enough SYN/3rd ACKMatthieu Baerts
If we receive less MPCapable SYN or 3rd ACK than expected, we now mark the test as failed. On the other hand, if we receive more, we keep the warning but we add a hint that it is probably due to retransmissions and that's why we don't mark the test as failed. Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/148 Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-12selftests: mptcp: display warnings on one lineMatthieu Baerts
Before we had this in case of SYN retransmissions: (...) # ns4 MPTCP -> ns2 (10.0.1.2:10034 ) MPTCP (duration 1201ms) [ OK ] # ns4 MPTCP -> ns2 (dead:beef:1::2:10035) MPTCP (duration 1242ms) [ OK ] # ns4 MPTCP -> ns2 (10.0.2.1:10036 ) MPTCP ns2-60143c00-cDZWo4 SYNRX: MPTCP -> MPTCP: expect 11, got # 13 # (duration 6221ms) [ OK ] # ns4 MPTCP -> ns2 (dead:beef:2::1:10037) MPTCP (duration 1427ms) [ OK ] # ns4 MPTCP -> ns3 (10.0.2.2:10038 ) MPTCP (duration 881ms) [ OK ] (...) Now we have: (...) # ns4 MPTCP -> ns2 (10.0.1.2:10034 ) MPTCP (duration 1201ms) [ OK ] # ns4 MPTCP -> ns2 (dead:beef:1::2:10035) MPTCP (duration 1242ms) [ OK ] # ns4 MPTCP -> ns2 (10.0.2.1:10036 ) MPTCP (duration 6221ms) [ OK ] WARN: SYNRX: expect 11, got 13 # ns4 MPTCP -> ns2 (dead:beef:2::1:10037) MPTCP (duration 1427ms) [ OK ] # ns4 MPTCP -> ns3 (10.0.2.2:10038 ) MPTCP (duration 881ms) [ OK ] (...) So we put everything on one line, keep the durations and "OK" aligned and removed duplicated info to short the warning. Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-12selftests: mptcp: fix ACKRX debug messageMatthieu Baerts
Info from received MPCapable SYN were printed instead of the ones from received MPCapable 3rd ACK. Fixes: fed61c4b584c ("selftests: mptcp: make 2nd net namespace use tcp syn cookies unconditionally") Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-12selftests: mptcp: dump more info on errorsPaolo Abeni
Even if that may sound completely unlikely, the mptcp implementation is not perfect, yet. When the self-tests report an error we usually need more information of what the scripts currently report. iproute allow provides some additional goodies since a few releases, let's dump them. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-13selftests/bpf: Tests using bpf_check_mtu BPF-helperJesper Dangaard Brouer
Adding selftest for BPF-helper bpf_check_mtu(). Making sure it can be used from both XDP and TC. V16: - Fix 'void' function definition V11: - Addresse nitpicks from Andrii Nakryiko V10: - Remove errno non-zero test in CHECK_ATTR() - Addresse comments from Andrii Nakryiko Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/161287791989.790810.13612620012522164562.stgit@firesoul
2021-02-13selftests/bpf: Use bpf_check_mtu in selftest test_cls_redirectJesper Dangaard Brouer
This demonstrate how bpf_check_mtu() helper can easily be used together with bpf_skb_adjust_room() helper, prior to doing size adjustment, as delta argument is already setup. Hint: This specific test can be selected like this: ./test_progs -t cls_redirect Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/161287791481.790810.4444271170546646080.stgit@firesoul
2021-02-12selftests/bpf: Add test for bpf_iter_task_vmaSong Liu
The test dumps information similar to /proc/pid/maps. The first line of the output is compared against the /proc file to make sure they match. Signed-off-by: Song Liu <songliubraving@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20210212183107.50963-4-songliubraving@fb.com
2021-02-12bpf: selftests: Add non function pointer test to struct_opsMartin KaFai Lau
This patch adds a "void *owner" member. The existing bpf_tcp_ca test will ensure the bpf_cubic.o and bpf_dctcp.o can be loaded. Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210212021037.267278-1-kafai@fb.com
2021-02-12Merge tag 'kvmarm-5.12' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 updates for Linux 5.12 - Make the nVHE EL2 object relocatable, resulting in much more maintainable code - Handle concurrent translation faults hitting the same page in a more elegant way - Support for the standard TRNG hypervisor call - A bunch of small PMU/Debug fixes - Allow the disabling of symbol export from assembly code - Simplification of the early init hypercall handling
2021-02-12Merge branch 'for-mingo-nolibc' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu Pull nolibc fixes from Paul E. McKenney. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2021-02-12Merge branch 'for-mingo-rcu' 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: - Documentation updates. - Miscellaneous fixes. - kfree_rcu() updates: Addition of mem_dump_obj() to provide allocator return addresses to more easily locate bugs. This has a couple of RCU-related commits, but is mostly MM. Was pulled in with akpm's agreement. - Per-callback-batch tracking of numbers of callbacks, which enables better debugging information and smarter reactions to large numbers of callbacks. - The first round of changes to allow CPUs to be runtime switched from and to callback-offloaded state. - CONFIG_PREEMPT_RT-related changes. - RCU CPU stall warning updates. - Addition of polling grace-period APIs for SRCU. - Torture-test and torture-test scripting updates, including a "torture everything" script that runs rcutorture, locktorture, scftorture, rcuscale, and refscale. Plus does an allmodconfig build. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2021-02-11selftests/bpf: Add a selftest for the tracing bpf_get_socket_cookieFlorent Revest
This builds up on the existing socket cookie test which checks whether the bpf_get_socket_cookie helpers provide the same value in cgroup/connect6 and sockops programs for a socket created by the userspace part of the test. Instead of having an update_cookie sockops program tag a socket local storage with 0xFF, this uses both an update_cookie_sockops program and an update_cookie_tracing program which succesively tag the socket with 0x0F and then 0xF0. Signed-off-by: Florent Revest <revest@chromium.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: KP Singh <kpsingh@kernel.org> Link: https://lore.kernel.org/bpf/20210210111406.785541-5-revest@chromium.org
2021-02-11selftests/bpf: Use vmlinux.h in socket_cookie_prog.cFlorent Revest
When migrating from the bpf.h's to the vmlinux.h's definition of struct bps_sock, an interesting LLVM behavior happened. LLVM started producing two fetches of ctx->sk in the sockops program this means that the verifier could not keep track of the NULL-check on ctx->sk. Therefore, we need to extract ctx->sk in a variable before checking and dereferencing it. Signed-off-by: Florent Revest <revest@chromium.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: KP Singh <kpsingh@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210210111406.785541-4-revest@chromium.org
2021-02-11selftests/bpf: Integrate the socket_cookie test to test_progsFlorent Revest
Currently, the selftest for the BPF socket_cookie helpers is built and run independently from test_progs. It's easy to forget and hard to maintain. This patch moves the socket cookies test into prog_tests/ and vastly simplifies its logic by: - rewriting the loading code with BPF skeletons - rewriting the server/client code with network helpers - rewriting the cgroup code with test__join_cgroup - rewriting the error handling code with CHECKs Signed-off-by: Florent Revest <revest@chromium.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: KP Singh <kpsingh@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210210111406.785541-3-revest@chromium.org
2021-02-11selftests/ftrace: Add '!event' synthetic event syntax checkTom Zanussi
Add a check confirming that '!event' alone will remove a synthetic event. Link: https://lkml.kernel.org/r/1dff3f03d18542cece08c10d6323d8a8dba11e42.1612208610.git.zanussi@kernel.org Signed-off-by: Tom Zanussi <zanussi@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2021-02-11selftests/ftrace: Update synthetic event syntax errorsTom Zanussi
Some of the synthetic event errors and positions have changed in the code - update those and add several more tests. Also add a runtime check to ensure that the kernel supports dynamic strings in synthetic events, which these tests require. Link: https://lkml.kernel.org/r/51402656433455baead34f068c6e9466b64df9c0.1612208610.git.zanussi@kernel.org Fixes: 81ff92a93d95 (selftests/ftrace: Add test case for synthetic event syntax errors) Reported-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Tom Zanussi <zanussi@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2021-02-11selftests/bpf: Convert test_xdp_redirect.sh to bashBjörn Töpel
The test_xdp_redirect.sh script uses a bash feature, '&>'. On systems, e.g. Debian, where '/bin/sh' is dash, this will not work as expected. Use bash in the shebang to get the expected behavior. Further, using 'set -e' means that the error of a command cannot be captured without the command being executed with '&&' or '||'. Let us restructure the ping-commands, and use them as an if-expression, so that we can capture the return value. v4: Added missing Fixes:, and removed local variables. (Andrii) v3: Reintroduced /bin/bash, and kept 'set -e'. (Andrii) v2: Kept /bin/sh and removed bashisms. (Randy) Fixes: 996139e801fd ("selftests: bpf: add a test for XDP redirect") Signed-off-by: Björn Töpel <bjorn.topel@intel.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210211082029.1687666-1-bjorn.topel@gmail.com
2021-02-11selftests/bpf: Add a test for map-in-map and per-cpu maps in sleepable progsAlexei Starovoitov
Add a basic test for map-in-map and per-cpu maps in sleepable programs. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: KP Singh <kpsingh@kernel.org> Link: https://lore.kernel.org/bpf/20210210033634.62081-10-alexei.starovoitov@gmail.com
2021-02-11selftests/bpf: Improve recursion selftestAlexei Starovoitov
Since recursion_misses counter is available in bpf_prog_info improve the selftest to make sure it's counting correctly. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20210210033634.62081-8-alexei.starovoitov@gmail.com
2021-02-11selftest/bpf: Add a recursion testAlexei Starovoitov
Add recursive non-sleepable fentry program as a test. All attach points where sleepable progs can execute are non recursive so far. The recursion protection mechanism for sleepable cannot be activated yet. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210210033634.62081-6-alexei.starovoitov@gmail.com
2021-02-11bpf: Add per-program recursion prevention mechanismAlexei Starovoitov
Since both sleepable and non-sleepable programs execute under migrate_disable add recursion prevention mechanism to both types of programs when they're executed via bpf trampoline. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210210033634.62081-5-alexei.starovoitov@gmail.com
2021-02-11KVM: selftests: Don't bother mapping GVA for Xen shinfo testSean Christopherson
Don't bother mapping the Xen shinfo pages into the guest, they don't need to be accessed using the GVAs and passing a define with "GPA" in the name to addr_gva2hpa() is confusing. Cc: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210210182609.435200-5-seanjc@google.com> Reviewed-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-02-11KVM: selftests: Fix hex vs. decimal snafu in Xen testSean Christopherson
The Xen shinfo selftest uses '40' when setting the GPA of the vCPU info struct, but checks for the result at '0x40'. Arbitrarily use the hex version to resolve the bug. Fixes: 8d4e7e80838f ("KVM: x86: declare Xen HVM shared info capability and add test case") Cc: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210210182609.435200-4-seanjc@google.com> Reviewed-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-02-11KVM: selftests: Fix size of memslots created by Xen testsSean Christopherson
For better or worse, the memslot APIs take the number of pages, not the size in bytes. The Xen tests need 2 pages, not 8192 pages. Fixes: 8d4e7e80838f ("KVM: x86: declare Xen HVM shared info capability and add test case") Cc: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210210182609.435200-3-seanjc@google.com> Reviewed-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-02-11KVM: selftests: Ignore recently added Xen tests' build outputSean Christopherson
Add the new Xen test binaries to KVM selftest's .gitnore. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210210182609.435200-2-seanjc@google.com> Reviewed-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-02-11KVM: selftests: Add missing header file needed by xAPIC IPI testsPeter Shier
Fixes: 678e90a349a4 ("KVM: selftests: Test IPI to halted vCPU in xAPIC while backing page moves") Cc: Andrew Jones <drjones@redhat.com> Cc: Jim Mattson <jmattson@google.com> Signed-off-by: Peter Shier <pshier@google.com> Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210210011747.240913-1-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-02-11KVM: selftests: Add operand to vmsave/vmload/vmrun in svm.cRicardo Koller
Building the KVM selftests with LLVM's integrated assembler fails with: $ CFLAGS=-fintegrated-as make -C tools/testing/selftests/kvm CC=clang lib/x86_64/svm.c:77:16: error: too few operands for instruction asm volatile ("vmsave\n\t" : : "a" (vmcb_gpa) : "memory"); ^ <inline asm>:1:2: note: instantiated into assembly here vmsave ^ lib/x86_64/svm.c:134:3: error: too few operands for instruction "vmload\n\t" ^ <inline asm>:1:2: note: instantiated into assembly here vmload ^ This is because LLVM IAS does not currently support calling vmsave, vmload, or vmload without an explicit %rax operand. Add an explicit operand to vmsave, vmload, and vmrum in svm.c. Fixing this was suggested by Sean Christopherson. Tested: building without this error in clang 11. The following patch (not queued yet) needs to be applied to solve the other remaining error: "selftests: kvm: remove reassignment of non-absolute variables". Suggested-by: Sean Christopherson <seanjc@google.com> Link: https://lore.kernel.org/kvm/X+Df2oQczVBmwEzi@google.com/ Reviewed-by: Jim Mattson <jmattson@google.com> Signed-off-by: Ricardo Koller <ricarkol@google.com> Message-Id: <20210210031719.769837-1-ricarkol@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-02-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller
2021-02-10selftests/bpf: Simplify the calculation of variablesJiapeng Chong
Fix the following coccicheck warnings: ./tools/testing/selftests/bpf/xdpxceiver.c:954:28-30: WARNING !A || A && B is equivalent to !A || B. ./tools/testing/selftests/bpf/xdpxceiver.c:932:28-30: WARNING !A || A && B is equivalent to !A || B. ./tools/testing/selftests/bpf/xdpxceiver.c:909:28-30: WARNING !A || A && B is equivalent to !A || B. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/1612860398-102839-1-git-send-email-jiapeng.chong@linux.alibaba.com
2021-02-10selftests/bpf: Fix endianness issues in atomic testsIlya Leoshkevich
Atomic tests store a DW, but then load it back as a W from the same address. This doesn't work on big-endian systems, and since the point of those tests is not testing narrow loads, fix simply by loading a DW. Fixes: 98d666d05a1d ("bpf: Add tests for new BPF atomic operations") Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210210020713.77911-1-iii@linux.ibm.com
2021-02-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds
Pull networking fixes from David Miller: "Another pile of networing fixes: 1) ath9k build error fix from Arnd Bergmann 2) dma memory leak fix in mediatec driver from Lorenzo Bianconi. 3) bpf int3 kprobe fix from Alexei Starovoitov. 4) bpf stackmap integer overflow fix from Bui Quang Minh. 5) Add usb device ids for Cinterion MV31 to qmi_qwwan driver, from Christoph Schemmel. 6) Don't update deleted entry in xt_recent netfilter module, from Jazsef Kadlecsik. 7) Use after free in nftables, fix from Pablo Neira Ayuso. 8) Header checksum fix in flowtable from Sven Auhagen. 9) Validate user controlled length in qrtr code, from Sabyrzhan Tasbolatov. 10) Fix race in xen/netback, from Juergen Gross, 11) New device ID in cxgb4, from Raju Rangoju. 12) Fix ring locking in rxrpc release call, from David Howells. 13) Don't return LAPB error codes from x25_open(), from Xie He. 14) Missing error returns in gsi_channel_setup() from Alex Elder. 15) Get skb_copy_and_csum_datagram working properly with odd segment sizes, from Willem de Bruijn. 16) Missing RFS/RSS table init in enetc driver, from Vladimir Oltean. 17) Do teardown on probe failure in DSA, from Vladimir Oltean. 18) Fix compilation failures of txtimestamp selftest, from Vadim Fedorenko. 19) Limit rx per-napi gro queue size to fix latency regression, from Eric Dumazet. 20) dpaa_eth xdp fixes from Camelia Groza. 21) Missing txq mode update when switching CBS off, in stmmac driver, from Mohammad Athari Bin Ismail. 22) Failover pending logic fix in ibmvnic driver, from Sukadev Bhattiprolu. 23) Null deref fix in vmw_vsock, from Norbert Slusarek. 24) Missing verdict update in xdp paths of ena driver, from Shay Agroskin. 25) seq_file iteration fix in sctp from Neil Brown. 26) bpf 32-bit src register truncation fix on div/mod, from Daniel Borkmann. 27) Fix jmp32 pruning in bpf verifier, from Daniel Borkmann. 28) Fix locking in vsock_shutdown(), from Stefano Garzarella. 29) Various missing index bound checks in hns3 driver, from Yufeng Mo. 30) Flush ports on .phylink_mac_link_down() in dsa felix driver, from Vladimir Oltean. 31) Don't mix up stp and mrp port states in bridge layer, from Horatiu Vultur. 32) Fix locking during netif_tx_disable(), from Edwin Peer" * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (45 commits) bpf: Fix 32 bit src register truncation on div/mod bpf: Fix verifier jmp32 pruning decision logic bpf: Fix verifier jsgt branch analysis on max bound vsock: fix locking in vsock_shutdown() net: hns3: add a check for index in hclge_get_rss_key() net: hns3: add a check for tqp_index in hclge_get_ring_chain_from_mbx() net: hns3: add a check for queue_id in hclge_reset_vf_queue() net: dsa: felix: implement port flushing on .phylink_mac_link_down switchdev: mrp: Remove SWITCHDEV_ATTR_ID_MRP_PORT_STAT bridge: mrp: Fix the usage of br_mrp_port_switchdev_set_state net: watchdog: hold device global xmit lock during tx disable netfilter: nftables: relax check for stateful expressions in set definition netfilter: conntrack: skip identical origin tuple in same zone only vsock/virtio: update credit only if socket is not closed net: fix iteration for sctp transport seq_files net: ena: Update XDP verdict upon failure net/vmw_vsock: improve locking in vsock_connect_timeout() net/vmw_vsock: fix NULL pointer dereference ibmvnic: Clear failover_pending if unable to schedule net: stmmac: set TxQ mode back to DCB after disabling CBS ...
2021-02-10selftest/bpf: Add test for var-offset stack accessAndrei Matei
Add a higher-level test (C BPF program) for the new functionality - variable access stack reads and writes. Signed-off-by: Andrei Matei <andreimatei1@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20210207011027.676572-5-andreimatei1@gmail.com
generated by cgit v1.3 (git 2.53.0) at 2026-11-11 23:14:45 +0000