linux/tools, branch v5.10

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2020-12-12T18:08:16Z

Pull kvm fixes from Paolo Bonzini: "Bugfixes for ARM, x86 and tools" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: tools/kvm_stat: Exempt time-based counters KVM: mmu: Fix SPTE encoding of MMIO generation upper half kvm: x86/mmu: Use cpuid to determine max gfn kvm: svm: de-allocate svm_cpu_data for all cpus in svm_cpu_uninit() selftests: kvm/set_memory_region_test: Fix race in move region test KVM: arm64: Add usage of stage 2 fault lookup level in user_mem_abort() KVM: arm64: Fix handling of merging tables into a block entry KVM: arm64: Fix memory leak on stage2 update of a valid PTE

tools/kvm_stat: Exempt time-based counters

2020-12-12T00:18:51Z

The new counters halt_poll_success_ns and halt_poll_fail_ns do not count events. Instead they provide a time, and mess up our statistics. Therefore, we should exclude them. Removal is currently implemented with an exempt list. If more counters like these appear, we can think about a more general rule like excluding all fields name "*_ns", in case that's a standing convention. Signed-off-by: Stefan Raspl Tested-and-reported-by: Christian Borntraeger Message-Id: <20201208210829.101324-1-raspl@linux.ibm.com> Signed-off-by: Paolo Bonzini

bpf: Fix enum names for bpf_this_cpu_ptr() and bpf_per_cpu_ptr() helpers

2020-12-11T22:19:07Z

Remove bpf_ prefix, which causes these helpers to be reported in verifier dump as bpf_bpf_this_cpu_ptr() and bpf_bpf_per_cpu_ptr(), respectively. Lets fix it as long as it is still possible before UAPI freezes on these helpers. Fixes: eaa6bcb71ef6 ("bpf: Introduce bpf_per_cpu_ptr()") Signed-off-by: Andrii Nakryiko Signed-off-by: Alexei Starovoitov Signed-off-by: Daniel Borkmann Signed-off-by: Linus Torvalds

Merge tag 'ktest-v5.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest

2020-12-11T00:51:27Z

Pull ktest fix from Steven Rostedt: "Fix issues with grub2bls in ktest.pl ktest.pl did not know about grub2bls that was introduced in Fedora 30, and now it does" * tag 'ktest-v5.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest: ktest.pl: Fix incorrect reboot for grub2bls

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2020-12-10T23:30:13Z

Pull networking fixes from David Miller: 1) IPsec compat fixes, from Dmitry Safonov. 2) Fix memory leak in xfrm_user_policy(). Fix from Yu Kuai. 3) Fix polling in xsk sockets by using sk_poll_wait() instead of datagram_poll() which keys off of sk_wmem_alloc and such which xsk sockets do not update. From Xuan Zhuo. 4) Missing init of rekey_data in cfgh80211, from Sara Sharon. 5) Fix destroy of timer before init, from Davide Caratti. 6) Missing CRYPTO_CRC32 selects in ethernet driver Kconfigs, from Arnd Bergmann. 7) Missing error return in rtm_to_fib_config() switch case, from Zhang Changzhong. 8) Fix some src/dest address handling in vrf and add a testcase. From Stephen Suryaputra. 9) Fix multicast handling in Seville switches driven by mscc-ocelot driver. From Vladimir Oltean. 10) Fix proto value passed to skb delivery demux in udp, from Xin Long. 11) HW pkt counters not reported correctly in enetc driver, from Claudiu Manoil. 12) Fix deadlock in bridge, from Joseph Huang. 13) Missing of_node_pur() in dpaa2 driver, fromn Christophe JAILLET. 14) Fix pid fetching in bpftool when there are a lot of results, from Andrii Nakryiko. 15) Fix long timeouts in nft_dynset, from Pablo Neira Ayuso. 16) Various stymmac fixes, from Fugang Duan. 17) Fix null deref in tipc, from Cengiz Can. 18) When mss is biog, coose more resonable rcvq_space in tcp, fromn Eric Dumazet. 19) Revert a geneve change that likely isnt necessary, from Jakub Kicinski. 20) Avoid premature rx buffer reuse in various Intel driversm from Björn Töpel. 21) retain EcT bits during TIS reflection in tcp, from Wei Wang. 22) Fix Tso deferral wrt. cwnd limiting in tcp, from Neal Cardwell. 23) MPLS_OPT_LSE_LABEL attribute is 342 ot 8 bits, from Guillaume Nault 24) Fix propagation of 32-bit signed bounds in bpf verifier and add test cases, from Alexei Starovoitov. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (81 commits) selftests: fix poll error in udpgro.sh selftests/bpf: Fix "dubious pointer arithmetic" test selftests/bpf: Fix array access with signed variable test selftests/bpf: Add test for signed 32-bit bound check bug bpf: Fix propagation of 32-bit signed bounds from 64-bit bounds. MAINTAINERS: Add entry for Marvell Prestera Ethernet Switch driver net: sched: Fix dump of MPLS_OPT_LSE_LABEL attribute in cls_flower net/mlx4_en: Handle TX error CQE net/mlx4_en: Avoid scheduling restart task if it is already running tcp: fix cwnd-limited bug for TSO deferral where we send nothing net: flow_offload: Fix memory leak for indirect flow block tcp: Retain ECT bits for tos reflection ethtool: fix stack overflow in ethnl_parse_bitset() e1000e: fix S0ix flow to allow S0i3.2 subset entry ice: avoid premature Rx buffer reuse ixgbe: avoid premature Rx buffer reuse i40e: avoid premature Rx buffer reuse igb: avoid transmit queue timeout in xdp path igb: use xdp_do_flush igb: skb add metasize for xdp ...

Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

2020-12-10T22:29:30Z

Alexei Starovoitov says: ==================== pull-request: bpf 2020-12-10 The following pull-request contains BPF updates for your *net* tree. We've added 21 non-merge commits during the last 12 day(s) which contain a total of 21 files changed, 163 insertions(+), 88 deletions(-). The main changes are: 1) Fix propagation of 32-bit signed bounds from 64-bit bounds, from Alexei. 2) Fix ring_buffer__poll() return value, from Andrii. 3) Fix race in lwt_bpf, from Cong. 4) Fix test_offload, from Toke. 5) Various xsk fixes. Please consider pulling these changes from: git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git Thanks a lot! Also thanks to reporters, reviewers and testers of commits in this pull-request: Cong Wang, Hulk Robot, Jakub Kicinski, Jean-Philippe Brucker, John Fastabend, Magnus Karlsson, Maxim Mikityanskiy, Yonghong Song ==================== Signed-off-by: David S. Miller

selftests: fix poll error in udpgro.sh

2020-12-10T21:22:19Z

The test program udpgso_bench_rx always invokes the poll() syscall with a timeout of 10ms. If a larger timeout is specified via the command line, udpgso_bench_rx is supposed to do multiple poll() calls till the timeout is expired or an event is received. Currently the poll() loop errors out after the first invocation with no events, and may causes self-tests failure alike: failed GRO with custom segment size ./udpgso_bench_rx: poll: 0x0 expected 0x1 This change addresses the issue allowing the poll() loop to consume all the configured timeout. Fixes: ada641ff6ed3 ("selftests: fixes for UDP GRO") Signed-off-by: Paolo Abeni Signed-off-by: David S. Miller

selftests/bpf: Fix "dubious pointer arithmetic" test

2020-12-10T21:11:30Z

The verifier trace changed following a bugfix. After checking the 64-bit sign, only the upper bit mask is known, not bit 31. Update the test accordingly. Signed-off-by: Jean-Philippe Brucker Acked-by: John Fastabend Signed-off-by: Alexei Starovoitov

selftests/bpf: Fix array access with signed variable test

2020-12-10T21:11:30Z

The test fails because of a recent fix to the verifier, even though this program is valid. In details what happens is: 7: (61) r1 = *(u32 *)(r0 +0) Load a 32-bit value, with signed bounds [S32_MIN, S32_MAX]. The bounds of the 64-bit value are [0, U32_MAX]... 8: (65) if r1 s> 0xffffffff goto pc+1 ... therefore this is always true (the operand is sign-extended). 10: (b4) w2 = 11 11: (6d) if r2 s> r1 goto pc+1 When true, the 64-bit bounds become [0, 10]. The 32-bit bounds are still [S32_MIN, 10]. 13: (64) w1 <<= 2 Because this is a 32-bit operation, the verifier propagates the new 32-bit bounds to the 64-bit ones, and the knowledge gained from insn 11 is lost. 14: (0f) r0 += r1 15: (7a) *(u64 *)(r0 +0) = 4 Then the verifier considers r0 unbounded here, rejecting the test. To make the test work, change insn 8 to check the sign of the 32-bit value. Signed-off-by: Jean-Philippe Brucker Acked-by: John Fastabend Signed-off-by: Alexei Starovoitov

selftests/bpf: Add test for signed 32-bit bound check bug

2020-12-10T21:11:30Z

After a 32-bit load followed by a branch, the verifier would reduce the maximum bound of the register to 0x7fffffff, allowing a user to bypass bound checks. Ensure such a program is rejected. In the second test, the 64-bit compare should not sufficient to determine whether the signed 32-bit lower bound is 0, so the verifier should reject the second branch. Signed-off-by: Jean-Philippe Brucker Acked-by: John Fastabend Signed-off-by: Alexei Starovoitov