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2021-05-23Merge tag 'powerpc-5.13-4' of ↵Linus Torvalds1-9/+18
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: - Fix breakage of strace (and other ptracers etc.) when using the new scv ABI (Power9 or later with glibc >= 2.33). - Fix early_ioremap() on 64-bit, which broke booting on some machines. Thanks to Dmitry V. Levin, Nicholas Piggin, Alexey Kardashevskiy, and Christophe Leroy. * tag 'powerpc-5.13-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/64s/syscall: Fix ptrace syscall info with scv syscalls powerpc/64s/syscall: Use pt_regs.trap to distinguish syscall ABI difference between sc and scv syscalls powerpc: Fix early setup to make early_ioremap() work
2021-05-23selftests/powerpc: Fix duplicate included pthread.hJiapeng Chong1-1/+0
Clean up the following includecheck warning: ./tools/testing/selftests/powerpc/tm/tm-vmx-unavail.c: pthread.h is included more than once. No functional change. Reported-by: Abaci Robot <[email protected]> Signed-off-by: Jiapeng Chong <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/1620903820-68213-1-git-send-email-jiapeng.chong@linux.alibaba.com
2021-05-22tools/testing/selftests/exec: fix link errorYang Yingliang1-3/+3
Fix the link error by adding '-static': gcc -Wall -Wl,-z,max-page-size=0x1000 -pie load_address.c -o /home/yang/linux/tools/testing/selftests/exec/load_address_4096 /usr/bin/ld: /tmp/ccopEGun.o: relocation R_AARCH64_ADR_PREL_PG_HI21 against symbol `stderr@@GLIBC_2.17' which may bind externally can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: /tmp/ccopEGun.o(.text+0x158): unresolvable R_AARCH64_ADR_PREL_PG_HI21 relocation against symbol `stderr@@GLIBC_2.17' /usr/bin/ld: final link failed: bad value collect2: error: ld returned 1 exit status make: *** [Makefile:25: tools/testing/selftests/exec/load_address_4096] Error 1 Link: https://lkml.kernel.org/r/[email protected] Fixes: 206e22f01941 ("tools/testing/selftests: add self-test for verifying load alignment") Signed-off-by: Yang Yingliang <[email protected]> Cc: Chris Kennelly <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-05-21Merge branch 'for-v5.13-rc3' of ↵Linus Torvalds1-7/+7
git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace Pull siginfo fix from Eric Biederman: "During the merge window an issue with si_perf and the siginfo ABI came up. The alpha and sparc siginfo structure layout had changed with the addition of SIGTRAP TRAP_PERF and the new field si_perf. The reason only alpha and sparc were affected is that they are the only architectures that use si_trapno. Looking deeper it was discovered that si_trapno is used for only a few select signals on alpha and sparc, and that none of the other _sigfault fields past si_addr are used at all. Which means technically no regression on alpha and sparc. While the alignment concerns might be dismissed the abuse of si_errno by SIGTRAP TRAP_PERF does have the potential to cause regressions in existing userspace. While we still have time before userspace starts using and depending on the new definition siginfo for SIGTRAP TRAP_PERF this set of changes cleans up siginfo_t. - The si_trapno field is demoted from magic alpha and sparc status and made an ordinary union member of the _sigfault member of siginfo_t. Without moving it of course. - si_perf is replaced with si_perf_data and si_perf_type ending the abuse of si_errno. - Unnecessary additions to signalfd_siginfo are removed" * 'for-v5.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: signalfd: Remove SIL_PERF_EVENT fields from signalfd_siginfo signal: Deliver all of the siginfo perf data in _perf signal: Factor force_sig_perf out of perf_sigtrap signal: Implement SIL_FAULT_TRAPNO siginfo: Move si_trapno inside the union inside _si_fault
2021-05-20selftests: net: devlink_port_split.py: skip the test if no devlink devicePo-Hsu Lin1-1/+7
When there is no devlink device, the following command will return: $ devlink -j dev show {dev:{}} This will cause IndexError when trying to access the first element in dev of this json dataset. Use the kselftest framework skip code to skip this test in this case. Example output with this change: # selftests: net: devlink_port_split.py # no devlink device was found, test skipped ok 7 selftests: net: devlink_port_split.py # SKIP Link: https://bugs.launchpad.net/bugs/1928889 Signed-off-by: Po-Hsu Lin <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-05-20selftests/bpf: Test ringbuf mmap read-only and read-write restrictionsAndrii Nakryiko1-1/+48
Extend ringbuf selftest to validate read/write and read-only restrictions on memory mapping consumer/producer/data pages. Ensure no "escalations" from PROT_READ to PROT_WRITE/PROT_EXEC is allowed. And test that mremap() fails to expand mmap()'ed area. Signed-off-by: Thadeu Lima de Souza Cascardo <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-05-20selftests/bpf: Convert static to global in tc_redirect progsStanislav Fomichev2-4/+4
Both IFINDEX_SRC and IFINDEX_DST are set from the userspace and it won't work once bpf merges with bpf-next. Fixes: 096eccdef0b3 ("selftests/bpf: Rewrite test_tc_redirect.sh as prog_tests/tc_redirect.c") Signed-off-by: Stanislav Fomichev <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-05-20selftests: Add .gitignore for nci test suiteDavid Matlack1-0/+1
Building the nci test suite produces a binary, nci_dev, that git then tries to track. Add a .gitignore file to tell git to ignore this binary. Signed-off-by: David Matlack <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-05-21powerpc/64s/syscall: Use pt_regs.trap to distinguish syscall ABI difference ↵Nicholas Piggin1-9/+18
between sc and scv syscalls The sc and scv 0 system calls have different ABI conventions, and ptracers need to know which system call type is being used if they want to look at the syscall registers. Document that pt_regs.trap can be used for this, and fix one in-tree user to work with scv 0 syscalls. Fixes: 7fa95f9adaee ("powerpc/64s: system call support for scv/rfscv instructions") Cc: [email protected] # v5.9+ Reported-by: "Dmitry V. Levin" <[email protected]> Suggested-by: "Dmitry V. Levin" <[email protected]> Signed-off-by: Nicholas Piggin <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-05-20selftests/x86/syscall: Add tests under ptrace to syscall_numbering_64H. Peter Anvin (Intel)1-25/+207
Add tests running under ptrace for syscall_numbering_64. ptrace stopping on syscall entry and possibly modifying the syscall number (regs.orig_rax) or the default return value (regs.rax) can have different results than the normal system call path. Signed-off-by: H. Peter Anvin (Intel) <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-05-20selftests/x86/syscall: Simplify message reporting in syscall_numberingH. Peter Anvin (Intel)1-31/+72
Reduce some boiler plate in printing and indenting messages. This makes it easier to produce clean status output. Signed-off-by: H. Peter Anvin (Intel) <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-05-20selftests/x86/syscall: Update and extend syscall_numbering_64H. Peter Anvin (Intel)1-52/+222
Update the syscall_numbering_64 selftest to reflect that a system call is to be extended from 32 bits. Add a mix of tests for valid and invalid system calls in 64-bit and x32 space. Use an explicit system call instruction, because the glibc syscall() wrapper might intercept instructions, extend the system call number independently, or anything similar. Use long long instead of long to make it possible to compile this test on x32 as well as 64 bits. Signed-off-by: H. Peter Anvin (Intel) <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-05-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller38-113/+718
Alexei Starovoitov says: ==================== pull-request: bpf-next 2021-05-19 The following pull-request contains BPF updates for your *net-next* tree. We've added 43 non-merge commits during the last 11 day(s) which contain a total of 74 files changed, 3717 insertions(+), 578 deletions(-). The main changes are: 1) syscall program type, fd array, and light skeleton, from Alexei. 2) Stop emitting static variables in skeleton, from Andrii. 3) Low level tc-bpf api, from Kumar. 4) Reduce verifier kmalloc/kfree churn, from Lorenz. ====================
2021-05-19selftests: lib: Add wrapper script for test_scanfRichard Fitzgerald3-1/+6
Adds a wrapper shell script for the test_scanf module. Signed-off-by: Richard Fitzgerald <[email protected]> Reviewed-by: Petr Mladek <[email protected]> Acked-by: Andy Shevchenko <[email protected]> Signed-off-by: Petr Mladek <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-05-19selftest/x86/signal: Include test cases for validating sigaltstackChang S. Bae2-1/+129
The test measures the kernel's signal delivery with different (enough vs. insufficient) stack sizes. Signed-off-by: Chang S. Bae <[email protected]> Signed-off-by: Borislav Petkov <[email protected]> Reviewed-by: Len Brown <[email protected]> Acked-by: Thomas Gleixner <[email protected]> Link: https://lkml.kernel.org/r/[email protected]
2021-05-19selftest/sigaltstack: Use the AT_MINSIGSTKSZ aux vector if availableChang S. Bae1-5/+15
The SIGSTKSZ constant may not represent enough stack size in some architectures as the hardware state size grows. Use getauxval(AT_MINSIGSTKSZ) to increase the stack size. Signed-off-by: Chang S. Bae <[email protected]> Signed-off-by: Borislav Petkov <[email protected]> Reviewed-by: Len Brown <[email protected]> Acked-by: Thomas Gleixner <[email protected]> Link: https://lkml.kernel.org/r/[email protected]
2021-05-19selftests/bpf: Convert test trace_printk to lskel.Alexei Starovoitov2-2/+2
Convert test trace_printk to light skeleton to check rodata support in lskel. Signed-off-by: Alexei Starovoitov <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-05-19selftests/bpf: Convert test printk to use rodata.Alexei Starovoitov2-3/+6
Convert test trace_printk to more aggressively validate and use rodata. Signed-off-by: Alexei Starovoitov <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-05-19selftests/bpf: Convert atomics test to light skeleton.Alexei Starovoitov2-37/+37
Convert prog_tests/atomics.c to lskel.h Signed-off-by: Alexei Starovoitov <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-05-19selftests/bpf: Convert few tests to light skeleton.Alexei Starovoitov10-28/+41
Convert few tests that don't use CO-RE to light skeleton. Signed-off-by: Alexei Starovoitov <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-05-19libbpf: Change the order of data and text relocations.Alexei Starovoitov1-0/+13
In order to be able to generate loader program in the later patches change the order of data and text relocations. Also improve the test to include data relos. If the kernel supports "FD array" the map_fd relocations can be processed before text relos since generated loader program won't need to manually patch ld_imm64 insns with map_fd. But ksym and kfunc relocations can only be processed after all calls are relocated, since loader program will consist of a sequence of calls to bpf_btf_find_by_name_kind() followed by patching of btf_id and btf_obj_fd into corresponding ld_imm64 insns. The locations of those ld_imm64 insns are specified in relocations. Hence process all data relocations (maps, ksym, kfunc) together after call relos. Signed-off-by: Alexei Starovoitov <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-05-19selftests/bpf: Test for btf_load command.Alexei Starovoitov2-0/+53
Improve selftest to check that btf_load is working from bpf program. Signed-off-by: Alexei Starovoitov <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-05-19selftests/bpf: Test for syscall program typeAlexei Starovoitov2-0/+123
bpf_prog_type_syscall is a program that creates a bpf map, updates it, and loads another bpf program using bpf_sys_bpf() helper. Signed-off-by: Alexei Starovoitov <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-05-18signal: Deliver all of the siginfo perf data in _perfEric W. Biederman1-7/+7
Don't abuse si_errno and deliver all of the perf data in _perf member of siginfo_t. Note: The data field in the perf data structures in a u64 to allow a pointer to be encoded without needed to implement a 32bit and 64bit version of the same structure. There already exists a 32bit and 64bit versions siginfo_t, and the 32bit version can not include a 64bit member as it only has 32bit alignment. So unsigned long is used in siginfo_t instead of a u64 as unsigned long can encode a pointer on all architectures linux supports. v1: https://lkml.kernel.org/r/[email protected] v2: https://lkml.kernel.org/r/[email protected] v3: https://lkml.kernel.org/r/[email protected] Link: https://lkml.kernel.org/r/[email protected] Reviewed-by: Marco Elver <[email protected]> Signed-off-by: "Eric W. Biederman" <[email protected]>
2021-05-18selftests: forwarding: Add test for custom multipath hash with IPv6 GREIdo Schimmel1-0/+458
Test that when the hash policy is set to custom, traffic is distributed only according to the inner fields set in the fib_multipath_hash_fields sysctl. Each time set a different field and make sure traffic is only distributed when the field is changed in the packet stream. The test only verifies the behavior of IPv4/IPv6 overlays on top of an IPv6 underlay network. The previous patch verified the same with an IPv4 underlay network. Example output: # ./ip6gre_custom_multipath_hash.sh TEST: ping [ OK ] TEST: ping6 [ OK ] INFO: Running IPv4 overlay custom multipath hash tests TEST: Multipath hash field: Inner source IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 6602 / 6002 TEST: Multipath hash field: Inner source IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 1 / 12601 TEST: Multipath hash field: Inner destination IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 6802 / 5801 TEST: Multipath hash field: Inner destination IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 12602 / 3 TEST: Multipath hash field: Inner source port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16431 / 16344 TEST: Multipath hash field: Inner source port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 0 / 32773 TEST: Multipath hash field: Inner destination port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16431 / 16344 TEST: Multipath hash field: Inner destination port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 2 / 32772 INFO: Running IPv6 overlay custom multipath hash tests TEST: Multipath hash field: Inner source IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 6704 / 5902 TEST: Multipath hash field: Inner source IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 1 / 12600 TEST: Multipath hash field: Inner destination IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 5751 / 6852 TEST: Multipath hash field: Inner destination IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 12602 / 0 TEST: Multipath hash field: Inner flowlabel (balanced) [ OK ] INFO: Packets sent on path1 / path2: 8272 / 8181 TEST: Multipath hash field: Inner flowlabel (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 3 / 12602 TEST: Multipath hash field: Inner source port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16424 / 16351 TEST: Multipath hash field: Inner source port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 3 / 32774 TEST: Multipath hash field: Inner destination port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16425 / 16350 TEST: Multipath hash field: Inner destination port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 2 / 32773 Signed-off-by: Ido Schimmel <[email protected]> Acked-by: David Ahern <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-05-18selftests: forwarding: Add test for custom multipath hash with IPv4 GREIdo Schimmel1-0/+456
Test that when the hash policy is set to custom, traffic is distributed only according to the inner fields set in the fib_multipath_hash_fields sysctl. Each time set a different field and make sure traffic is only distributed when the field is changed in the packet stream. The test only verifies the behavior of IPv4/IPv6 overlays on top of an IPv4 underlay network. A subsequent patch will do the same with an IPv6 underlay network. Example output: # ./gre_custom_multipath_hash.sh TEST: ping [ OK ] TEST: ping6 [ OK ] INFO: Running IPv4 overlay custom multipath hash tests TEST: Multipath hash field: Inner source IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 6601 / 6001 TEST: Multipath hash field: Inner source IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 0 / 12600 TEST: Multipath hash field: Inner destination IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 6802 / 5802 TEST: Multipath hash field: Inner destination IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 12601 / 1 TEST: Multipath hash field: Inner source port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16430 / 16344 TEST: Multipath hash field: Inner source port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 0 / 32772 TEST: Multipath hash field: Inner destination port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16430 / 16343 TEST: Multipath hash field: Inner destination port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 0 / 32772 INFO: Running IPv6 overlay custom multipath hash tests TEST: Multipath hash field: Inner source IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 6702 / 5900 TEST: Multipath hash field: Inner source IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 0 / 12601 TEST: Multipath hash field: Inner destination IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 5751 / 6851 TEST: Multipath hash field: Inner destination IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 12602 / 1 TEST: Multipath hash field: Inner flowlabel (balanced) [ OK ] INFO: Packets sent on path1 / path2: 8364 / 8065 TEST: Multipath hash field: Inner flowlabel (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 12601 / 0 TEST: Multipath hash field: Inner source port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16425 / 16349 TEST: Multipath hash field: Inner source port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 1 / 32770 TEST: Multipath hash field: Inner destination port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16425 / 16349 TEST: Multipath hash field: Inner destination port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 2 / 32770 Signed-off-by: Ido Schimmel <[email protected]> Acked-by: David Ahern <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-05-18selftests: forwarding: Add test for custom multipath hashIdo Schimmel1-0/+364
Test that when the hash policy is set to custom, traffic is distributed only according to the outer fields set in the fib_multipath_hash_fields sysctl. Each time set a different field and make sure traffic is only distributed when the field is changed in the packet stream. The test only verifies the behavior with non-encapsulated IPv4 and IPv6 packets. Subsequent patches will add tests for IPv4/IPv6 overlays on top of IPv4/IPv6 underlay networks. Example output: # ./custom_multipath_hash.sh TEST: ping [ OK ] TEST: ping6 [ OK ] INFO: Running IPv4 custom multipath hash tests TEST: Multipath hash field: Source IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 6353 / 6254 TEST: Multipath hash field: Source IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 0 / 12600 TEST: Multipath hash field: Destination IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 6102 / 6502 TEST: Multipath hash field: Destination IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 1 / 12601 TEST: Multipath hash field: Source port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16428 / 16345 TEST: Multipath hash field: Source port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 32770 / 2 TEST: Multipath hash field: Destination port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16428 / 16345 TEST: Multipath hash field: Destination port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 32770 / 2 INFO: Running IPv6 custom multipath hash tests TEST: Multipath hash field: Source IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 6704 / 5903 TEST: Multipath hash field: Source IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 12600 / 0 TEST: Multipath hash field: Destination IP (balanced) [ OK ] INFO: Packets sent on path1 / path2: 5551 / 7052 TEST: Multipath hash field: Destination IP (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 12603 / 0 TEST: Multipath hash field: Flowlabel (balanced) [ OK ] INFO: Packets sent on path1 / path2: 8378 / 8080 TEST: Multipath hash field: Flowlabel (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 2 / 12603 TEST: Multipath hash field: Source port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16385 / 16388 TEST: Multipath hash field: Source port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 0 / 32774 TEST: Multipath hash field: Destination port (balanced) [ OK ] INFO: Packets sent on path1 / path2: 16386 / 16390 TEST: Multipath hash field: Destination port (unbalanced) [ OK ] INFO: Packets sent on path1 / path2: 32771 / 2 Signed-off-by: Ido Schimmel <[email protected]> Reviewed-by: David Ahern <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-05-18Merge branches 'bitmaprange.2021.05.10c', 'doc.2021.05.10c', ↵Paul E. McKenney15-54/+376
'fixes.2021.05.13a', 'kvfree_rcu.2021.05.10c', 'mmdumpobj.2021.05.10c', 'nocb.2021.05.12a', 'srcu.2021.05.12a', 'tasks.2021.05.18a' and 'torture.2021.05.10c' into HEAD bitmaprange.2021.05.10c: Allow "all" for bitmap ranges. doc.2021.05.10c: Documentation updates. fixes.2021.05.13a: Miscellaneous fixes. kvfree_rcu.2021.05.10c: kvfree_rcu() updates. mmdumpobj.2021.05.10c: mem_dump_obj() updates. nocb.2021.05.12a: RCU NOCB CPU updates, including limited deoffloading. srcu.2021.05.12a: SRCU updates. tasks.2021.05.18a: Tasks-RCU updates. torture.2021.05.10c: Torture-test updates.
2021-05-17selftests: mlxsw: qos_lib: Drop __mlnx_qosPetr Machata1-14/+0
Now that the two users of this helper have been converted to iproute2 dcb, it is not necessary anymore. Drop it. Signed-off-by: Petr Machata <[email protected]> Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-05-17selftests: mlxsw: qos_pfc: Convert to iproute2 dcbPetr Machata1-12/+12
There is a dedicated tool for configuration of DCB in iproute2 now. Use it in the selftest instead of mlnx_qos. Signed-off-by: Petr Machata <[email protected]> Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-05-17selftests: mlxsw: qos_headroom: Convert to iproute2 dcbPetr Machata1-34/+35
There is a dedicated tool for configuration of DCB in iproute2 now. Use it in the selftest instead of mlnx_qos. Signed-off-by: Petr Machata <[email protected]> Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-05-17selftests: mlxsw: Make sampling test more robustIdo Schimmel1-6/+6
The test sometimes fails with an error message such as: TEST: tc sample (w/ flower) rate (egress) [FAIL] Expected 100 packets, got 70 packets, which is -30% off. Required accuracy is +-25% Make the test more robust by generating more packets, therefore increasing the number of expected samples. Decrease the transmission delay in order not to needlessly prolong the test. Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-05-17selftests: mlxsw: Make the unsplit array global in port_scale testDanielle Ratson1-1/+3
Currently, the array of the ports that were split in the port_scale test is local, so the port_cleanup() unsplits an empty array. Make the array global so the cleanup will be preformed properly. Suggested-by: Petr Machata <[email protected]> Signed-off-by: Danielle Ratson <[email protected]> Reviewed-by: Petr Machata <[email protected]> Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-05-17selftests: Lowest IPv4 address in a subnet is validSeth David Schoen1-8/+9
Expect the lowest IPv4 address in a subnet to be assignable and addressable as a unicast (non-broadcast) address on a local network segment. Signed-off-by: Seth David Schoen <[email protected]> Suggested-by: John Gilmore <[email protected]> Acked-by: Dave Taht <[email protected]> Reviewed-by: David Ahern <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-05-17libbpf: Add selftests for TC-BPF management APIKumar Kartikeya Dwivedi2-0/+407
This adds some basic tests for the low level bpf_tc_* API. Signed-off-by: Kumar Kartikeya Dwivedi <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Reviewed-by: Toke Høiland-Jørgensen <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-05-17Merge tag 'kvmarm-fixes-5.13-1' of ↵Paolo Bonzini16-23/+773
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 fixes for 5.13, take #1 - Fix regression with irqbypass not restarting the guest on failed connect - Fix regression with debug register decoding resulting in overlapping access - Commit exception state on exit to usrspace - Fix the MMU notifier return values - Add missing 'static' qualifiers in the new host stage-2 code
2021-05-17selftests/powerpc: Add test of mitigation patchingMichael Ellerman2-0/+77
We recently discovered some of our mitigation patching was not safe against other CPUs running concurrently. Add a test which enable/disables all mitigations in a tight loop while also running some stress load. On an unpatched system this almost always leads to an oops and panic/reboot, but we also check if the kernel becomes tainted in case we have a non-fatal oops. Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-05-14Merge tag 'arm64-fixes' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Catalin Marinas: "Fixes and cpucaps.h automatic generation: - Generate cpucaps.h at build time rather than carrying lots of #defines. Merged at -rc1 to avoid some conflicts during the merge window. - Initialise RGSR_EL1.SEED in __cpu_setup() as it may be left as 0 out of reset and the IRG instruction would not function as expected if only the architected pseudorandom number generator is implemented. - Fix potential race condition in __sync_icache_dcache() where the PG_dcache_clean page flag is set before the actual cache maintenance. - Fix header include in BTI kselftests" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: Fix race condition on PG_dcache_clean in __sync_icache_dcache() arm64: tools: Add __ASM_CPUCAPS_H to the endif in cpucaps.h arm64: mte: initialize RGSR_EL1.SEED in __cpu_setup kselftest/arm64: Add missing stddef.h include to BTI tests arm64: Generate cpucaps.h
2021-05-13selftests/bpf: Validate skeleton gen handles skipped fieldsAndrii Nakryiko4-5/+5
Adjust static_linked selftests to test a mix of global and static variables and their handling of bpftool's skeleton generation code. Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-05-12rcu: Fix various typos in commentsIngo Molnar1-1/+1
Fix ~12 single-word typos in RCU code comments. [ paulmck: Apply feedback from Randy Dunlap. ] Reviewed-by: Randy Dunlap <[email protected]> Signed-off-by: Ingo Molnar <[email protected]> Signed-off-by: Paul E. McKenney <[email protected]>
2021-05-12selftests: futex: Expand timeout testAndré Almeida1-16/+110
Improve futex timeout testing by checking all the operations that supports timeout and their available modes. Signed-off-by: André Almeida <[email protected]> Signed-off-by: Ingo Molnar <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-05-12selftests: futex: Correctly include headers dirsAndré Almeida1-1/+2
When building selftests, the build system will install uapi linux headers at usr/include in kernel source's root directory. When building with a different output folder, the headers will be installed at kselftests/usr/include. Add both paths so we can build the tests using up-to-date headers. Currently, this is uncommon to happen since it's rare to find a build system with an outdated futex header, but it happens when testing new futex operations. Signed-off-by: André Almeida <[email protected]> Signed-off-by: Ingo Molnar <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2021-05-12kselftest: Add test for core sched prctl interfaceChris Hyser4-0/+354
Provides a selftest and examples of using the interface. [peterz: updated to not use sched_debug] Signed-off-by: Chris Hyser <[email protected]> Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Tested-by: Don Hiatt <[email protected]> Tested-by: Hongyu Ning <[email protected]> Tested-by: Vincent Guittot <[email protected]> Link: https://lkml.kernel.org/r/[email protected]
2021-05-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfDavid S. Miller7-266/+617
Daniel Borkmann says: ==================== pull-request: bpf 2021-05-11 The following pull-request contains BPF updates for your *net* tree. We've added 13 non-merge commits during the last 8 day(s) which contain a total of 21 files changed, 817 insertions(+), 382 deletions(-). The main changes are: 1) Fix multiple ringbuf bugs in particular to prevent writable mmap of read-only pages, from Andrii Nakryiko & Thadeu Lima de Souza Cascardo. 2) Fix verifier alu32 known-const subregister bound tracking for bitwise operations and/or/xor, from Daniel Borkmann. 3) Reject trampoline attachment for functions with variable arguments, and also add a deny list of other forbidden functions, from Jiri Olsa. 4) Fix nested bpf_bprintf_prepare() calls used by various helpers by switching to per-CPU buffers, from Florent Revest. 5) Fix kernel compilation with BTF debug info on ppc64 due to pahole missing TCP-CC functions like cubictcp_init, from Martin KaFai Lau. 6) Add a kconfig entry to provide an option to disallow unprivileged BPF by default, from Daniel Borkmann. 7) Fix libbpf compilation for older libelf when GELF_ST_VISIBILITY() macro is not available, from Arnaldo Carvalho de Melo. 8) Migrate test_tc_redirect to test_progs framework as prep work for upcoming skb_change_head() fix & selftest, from Jussi Maki. 9) Fix a libbpf segfault in add_dummy_ksym_var() if BTF is not present, from Ian Rogers. 10) Fix tx_only micro-benchmark in xdpsock BPF sample with proper frame size, from Magnus Karlsson. ==================== Signed-off-by: David S. Miller <[email protected]>
2021-05-11selftests/bpf: Stop using static variables for passing data to/from user-spaceAndrii Nakryiko19-40/+33
In preparation of skipping emitting static variables in BPF skeletons, switch all current selftests uses of static variables to pass data between BPF and user-space to use global variables. All non-read-only `static volatile` variables become just plain global variables by dropping `static volatile` part. Read-only `static volatile const` variables, though, still require `volatile` modifier, otherwise compiler will ignore whatever values are set from user-space. Few static linker tests are using name-conflicting static variables to validate that static linker still properly handles static variables and doesn't trip up on name conflicts. Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-05-11selftests/bpf: Rewrite test_tc_redirect.sh as prog_tests/tc_redirect.cJussi Maki7-266/+617
As discussed in [0], this ports test_tc_redirect.sh to the test_progs framework and removes the old test. This makes it more in line with rest of the tests and makes it possible to run this test case with vmtest.sh and under the bpf CI. The upcoming skb_change_head() helper fix in [0] is depending on it and extending the test case to redirect a packet from L3 device to veth. [0] https://lore.kernel.org/bpf/[email protected] Signed-off-by: Jussi Maki <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-05-10torture: Don't cap remote runs by build-system number of CPUsPaul E. McKenney2-4/+12
Currently, if a torture scenario requires more CPUs than are present on the build system, kvm.sh and friends limit the CPUs available to that scenario. This makes total sense when the build system and the system running the scenarios are one and the same, but not so much when remote systems might well have more CPUs. This commit therefore introduces a --remote flag to kvm.sh that suppresses this CPU-limiting behavior, and causes kvm-remote.sh to use this flag. Signed-off-by: Paul E. McKenney <[email protected]>
2021-05-10torture: Make kvm-remote.sh account for network failure in pathname checksPaul E. McKenney1-2/+24
In a long-duration kvm-remote.sh run, almost all of the remote accesses will be simple file-existence checks. These are thus the most likely to be caught out by network failures, which do happen from time to time. This commit therefore takes a first step towards tolerating temporary network outages by making the file-existence checks repeat in the face of such an outage. They also print a message every minute during a outage, allowing the user to take appropriate action. Signed-off-by: Paul E. McKenney <[email protected]>
2021-05-10rcutorture: Add BUSTED-BOOST to test RCU priority boosting testsPaul E. McKenney2-0/+25
This commit adds the BUSTED-BOOST rcutorture scenario, which can be used to test rcutorture's ability to test RCU priority boosting. Signed-off-by: Paul E. McKenney <[email protected]>
2021-05-10torture: Set kvm.sh language to EnglishPaul E. McKenney1-0/+3
Some of the code invoked directly and indirectly from kvm.sh parses the output of commands. This parsing assumes English, which can cause failures if the user has set some other language. In a few cases, there are language-independent commands available, but this is not always the case. Therefore, as an alternative to polyglot parsing, this commit sets the LANG environment variable to en_US.UTF-8. Reported-by: Frederic Weisbecker <[email protected]> Signed-off-by: Paul E. McKenney <[email protected]>
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