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* bpf: Add config to allow loading modules with BTF mismatchesConnor O'Brien2022-02-282-1/+12
| | | | | | | | | | | | | | | | | | BTF mismatch can occur for a separately-built module even when the ABI is otherwise compatible and nothing else would prevent successfully loading. Add a new Kconfig to control how mismatches are handled. By default, preserve the current behavior of refusing to load the module. If MODULE_ALLOW_BTF_MISMATCH is enabled, load the module but ignore its BTF information. Suggested-by: Yonghong Song <yhs@fb.com> Suggested-by: Michal Suchánek <msuchanek@suse.de> Signed-off-by: Connor O'Brien <connoro@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Shung-Hsi Yu <shung-hsi.yu@suse.com> Acked-by: Song Liu <songliubraving@fb.com> Link: https://lore.kernel.org/bpf/CAADnVQJ+OVPnBz8z3vNu8gKXX42jCUqfuvhWAyCQDu8N_yqqwQ@mail.gmail.com Link: https://lore.kernel.org/bpf/20220223012814.1898677-1-connoro@google.com
* bpf, arm64: Feed byte-offset into bpf line infoHou Tao2022-02-281-0/+5
| | | | | | | | | | | | | | | | insn_to_jit_off passed to bpf_prog_fill_jited_linfo() is calculated in instruction granularity instead of bytes granularity, but BPF line info requires byte offset. bpf_prog_fill_jited_linfo() will be the last user of ctx.offset before it is freed, so convert the offset into byte-offset before calling into bpf_prog_fill_jited_linfo() in order to fix the line info dump on arm64. Fixes: 37ab566c178d ("bpf: arm64: Enable arm64 jit to provide bpf_line_info") Suggested-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Hou Tao <houtao1@huawei.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20220226121906.5709-3-houtao1@huawei.com
* bpf, arm64: Call build_prologue() first in first JIT passHou Tao2022-02-281-5/+8
| | | | | | | | | | | BPF line info needs ctx->offset to be the instruction offset in the whole JITed image instead of the body itself, so also call build_prologue() first in first JIT pass. Fixes: 37ab566c178d ("bpf: arm64: Enable arm64 jit to provide bpf_line_info") Signed-off-by: Hou Tao <houtao1@huawei.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20220226121906.5709-2-houtao1@huawei.com
* bpf: Fix issue with bpf preload module taking over stdout/stdin of kernel.Yucong Sun2022-02-251-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In cb80ddc67152 ("bpf: Convert bpf_preload.ko to use light skeleton.") BPF preload was switched from user mode process to use in-kernel light skeleton instead. However, in the kernel context, early in the boot sequence, the first available FD can start from 0, instead of normally 3 for user mode process. So FDs 0 and 1 are then used for loaded BPF programs and prevent init process from setting up stdin/stdout/stderr on FD 0, 1, and 2 as expected. Before the fix: ls -lah /proc/1/fd/* lrwx------1 root root 64 Feb 23 17:20 /proc/1/fd/0 -> /dev/null lrwx------ 1 root root 64 Feb 23 17:20 /proc/1/fd/1 -> /dev/null lrwx------ 1 root root 64 Feb 23 17:20 /proc/1/fd/2 -> /dev/console lrwx------ 1 root root 64 Feb 23 17:20 /proc/1/fd/6 -> /dev/console lrwx------ 1 root root 64 Feb 23 17:20 /proc/1/fd/7 -> /dev/console After the fix: ls -lah /proc/1/fd/* lrwx------ 1 root root 64 Feb 24 21:23 /proc/1/fd/0 -> /dev/console lrwx------ 1 root root 64 Feb 24 21:23 /proc/1/fd/1 -> /dev/console lrwx------ 1 root root 64 Feb 24 21:23 /proc/1/fd/2 -> /dev/console Fix by closing prog FDs after initialization. struct bpf_prog's themselves are kept alive through direct kernel references taken with bpf_link_get_from_fd(). Fixes: cb80ddc67152 ("bpf: Convert bpf_preload.ko to use light skeleton.") Signed-off-by: Yucong Sun <fallentree@fb.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220225185923.2535519-1-fallentree@fb.com
* bpftool: Bpf skeletons assert type sizesDelyan Kratunov2022-02-241-22/+105
| | | | | | | | | | | | | | | | | | | | When emitting type declarations in skeletons, bpftool will now also emit static assertions on the size of the data/bss/rodata/etc fields. This ensures that in situations where userspace and kernel types have the same name but differ in size we do not silently produce incorrect results but instead break the build. This was reported in [1] and as expected the repro in [2] fails to build on the new size assert after this change. [1]: Closes: https://github.com/libbpf/libbpf/issues/433 [2]: https://github.com/fuweid/iovisor-bcc-pr-3777 Signed-off-by: Delyan Kratunov <delyank@fb.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Tested-by: Hengqi Chen <hengqi.chen@gmail.com> Acked-by: Hengqi Chen <hengqi.chen@gmail.com> Link: https://lore.kernel.org/bpf/f562455d7b3cf338e59a7976f4690ec5a0057f7f.camel@fb.com
* bpf: Cleanup commentsTom Rix2022-02-249-14/+14
| | | | | | | | | | | | | | | | | | | | | Add leading space to spdx tag Use // for spdx c file comment Replacements resereved to reserved inbetween to in between everytime to every time intutivie to intuitive currenct to current encontered to encountered referenceing to referencing upto to up to exectuted to executed Signed-off-by: Tom Rix <trix@redhat.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Song Liu <songliubraving@fb.com> Link: https://lore.kernel.org/bpf/20220220184055.3608317-1-trix@redhat.com
* libbpf: Simplify the find_elf_sec_sz() functionYuntao Wang2022-02-231-4/+2
| | | | | | | | | | | | | | The check in the last return statement is unnecessary, we can just return the ret variable. But we can simplify the function further by returning 0 immediately if we find the section size and -ENOENT otherwise. Thus we can also remove the ret variable. Signed-off-by: Yuntao Wang <ytcoode@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220223085244.3058118-1-ytcoode@gmail.com
* bpftool: Remove usage of reallocarray()Mauricio Vásquez2022-02-234-11/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit fixes a compilation error on systems with glibc < 2.26 [0]: ``` In file included from main.h:14:0, from gen.c:24: linux/tools/include/tools/libc_compat.h:11:21: error: attempt to use poisoned "reallocarray" static inline void *reallocarray(void *ptr, size_t nmemb, size_t size) ``` This happens because gen.c pulls <bpf/libbpf_internal.h>, and then <tools/libc_compat.h> (through main.h). When COMPAT_NEED_REALLOCARRAY is set, libc_compat.h defines reallocarray() which libbpf_internal.h poisons with a GCC pragma. This commit reuses libbpf_reallocarray() implemented in commit 029258d7b228 ("libbpf: Remove any use of reallocarray() in libbpf"). v1 -> v2: - reuse libbpf_reallocarray() instead of reimplementing it Fixes: a9caaba399f9 ("bpftool: Implement "gen min_core_btf" logic") Reported-by: Quentin Monnet <quentin@isovalent.com> Signed-off-by: Mauricio Vásquez <mauricio@kinvolk.io> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Acked-by: Song Liu <songliubraving@fb.com> Link: https://lore.kernel.org/bpf/20220221125617.39610-1-mauricio@kinvolk.io [0]: https://lore.kernel.org/bpf/3bf2bd49-9f2d-a2df-5536-bc0dde70a83b@isovalent.com/
* scripts/pahole-flags.sh: Parse DWARF and generate BTF with multithreading.Kui-Feng Lee2022-02-221-0/+3
| | | | | | | | | | | | | | | | | | | | Pass a "-j" argument to pahole if possible to reduce the time of generating BTF info. Since v1.22, pahole can parse DWARF and generate BTF with multithreading to speed up the conversion. It will reduce the overall build time of the kernel for seconds. v3 fixes whitespaces and improves the commit description. v2 checks the version of pahole to enable multithreading only if possible. [v2] https://lore.kernel.org/bpf/20220216193431.2691015-1-kuifeng@fb.com/ [v1] https://lore.kernel.org/bpf/20220216004616.2079689-1-kuifeng@fb.com/ Signed-off-by: Kui-Feng Lee <kuifeng@fb.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20220217175427.649713-1-kuifeng@fb.com
* libbpf: Remove redundant check in btf_fixup_datasec()Yuntao Wang2022-02-221-1/+1
| | | | | | | | | The check 't->size && t->size != size' is redundant because if t->size compares unequal to 0, we will just skip straight to sorting variables. Signed-off-by: Yuntao Wang <ytcoode@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220220072750.209215-1-ytcoode@gmail.com
* selftests/bpf: Add test for reg2btf_ids out of bounds accessKumar Kartikeya Dwivedi2022-02-221-0/+19
| | | | | | | | | | | | | This test tries to pass a PTR_TO_BTF_ID_OR_NULL to the release function, which would trigger a out of bounds access without the fix in commit 45ce4b4f9009 ("bpf: Fix crash due to out of bounds access into reg2btf_ids.") but after the fix, it should only index using base_type(reg->type), which should be less than __BPF_REG_TYPE_MAX, and also not permit any type flags to be set for the reg->type. Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20220220023138.2224652-1-memxor@gmail.com
* selftests/bpf: Fix btfgen testsAndrii Nakryiko2022-02-203-7/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There turned out to be a few problems with btfgen selftests. First, core_btfgen tests are failing in BPF CI due to the use of full-featured bpftool, which has extra dependencies on libbfd, libcap, etc, which are present in BPF CI's build environment, but those shared libraries are missing in QEMU image in which test_progs is running. To fix this problem, use minimal bootstrap version of bpftool instead. It only depend on libelf and libz, same as libbpf, so doesn't add any new requirements (and bootstrap bpftool still implementes entire `bpftool gen` functionality, which is quite convenient). Second problem is even more interesting. Both core_btfgen and core_reloc reuse the same set of struct core_reloc_test_case array of test case definitions. That in itself is not a problem, but btfgen test replaces test_case->btf_src_file property with the path to temporary file into which minimized BTF is output by bpftool. This interferes with original core_reloc tests, depending on order of tests execution (core_btfgen is run first in sequential mode and skrews up subsequent core_reloc run by pointing to already deleted temporary file, instead of the original BTF files) and whether those two runs share the same process (in parallel mode the chances are high for them to run in two separate processes and so not interfere with each other). To prevent this interference, create and use local copy of a test definition. Mark original array as constant to catch accidental modifcations. Note that setup_type_id_case_success() and setup_type_id_case_success() still modify common test_case->output memory area, but it is ok as each setup function has to re-initialize it completely anyways. In sequential mode it leads to deterministic and correct initialization. In parallel mode they will either each have their own process, or if core_reloc and core_btfgen happen to be run by the same worker process, they will still do that sequentially within the worker process. If they are sharded across multiple processes, they don't really share anything anyways. Also, rename core_btfgen into core_reloc_btfgen, as it is indeed just a "flavor" of core_reloc test, not an independent set of tests. So make it more obvious. Last problem that needed solving was that location of bpftool differs between test_progs and test_progs' flavors (e.g., test_progs-no_alu32). To keep it simple, create a symlink to bpftool both inside selftests/bpf/ directory and selftests/bpf/<flavor> subdirectory. That way, from inside core_reloc test, location to bpftool is just "./bpftool". v2->v3: - fix bpftool location relative the test_progs-no_alu32; v1->v2: - fix corruption of core_reloc_test_case. Fixes: 704c91e59fe0 ("selftests/bpf: Test "bpftool gen min_core_btf") Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Yucong Sun <sunyucong@gmail.com> Link: https://lore.kernel.org/bpf/20220220042720.3336684-1-andrii@kernel.org
* bpf: Initialize ret to 0 inside btf_populate_kfunc_set()Souptick Joarder (HPE)2022-02-201-1/+1
| | | | | | | | | | | | | | | | Kernel test robot reported below error -> kernel/bpf/btf.c:6718 btf_populate_kfunc_set() error: uninitialized symbol 'ret'. Initialize ret to 0. Fixes: dee872e124e8 ("bpf: Populate kfunc BTF ID sets in struct btf") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Souptick Joarder (HPE) <jrdr.linux@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/bpf/20220219163915.125770-1-jrdr.linux@gmail.com
* selftests/bpf: Fix a clang deprecated-declarations compilation errorYonghong Song2022-02-201-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Build the kernel and selftest with clang compiler with LLVM=1, make -j LLVM=1 make -C tools/testing/selftests/bpf -j LLVM=1 I hit the following selftests/bpf compilation error: In file included from test_cpp.cpp:3: /.../tools/testing/selftests/bpf/tools/include/bpf/libbpf.h:73:8: error: 'relaxed_core_relocs' is deprecated: libbpf v0.6+: field has no effect [-Werror,-Wdeprecated-declarations] struct bpf_object_open_opts { ^ test_cpp.cpp:56:2: note: in implicit move constructor for 'bpf_object_open_opts' first required here LIBBPF_OPTS(bpf_object_open_opts, opts); ^ /.../tools/testing/selftests/bpf/tools/include/bpf/libbpf_common.h:77:3: note: expanded from macro 'LIBBPF_OPTS' (struct TYPE) { \ ^ /.../tools/testing/selftests/bpf/tools/include/bpf/libbpf.h:90:2: note: 'relaxed_core_relocs' has been explicitly marked deprecated here LIBBPF_DEPRECATED_SINCE(0, 6, "field has no effect") ^ /.../tools/testing/selftests/bpf/tools/include/bpf/libbpf_common.h:24:4: note: expanded from macro 'LIBBPF_DEPRECATED_SINCE' (LIBBPF_DEPRECATED("libbpf v" # major "." # minor "+: " msg)) ^ /.../tools/testing/selftests/bpf/tools/include/bpf/libbpf_common.h:19:47: note: expanded from macro 'LIBBPF_DEPRECATED' #define LIBBPF_DEPRECATED(msg) __attribute__((deprecated(msg))) There are two ways to fix the issue, one is to use GCC diagnostic ignore pragma, and the other is to open code bpf_object_open_opts instead of using LIBBPF_OPTS. Since in general LIBBPF_OPTS is preferred, the patch fixed the issue by adding proper GCC diagnostic ignore pragmas. Signed-off-by: Yonghong Song <yhs@fb.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220217194005.2765348-1-yhs@fb.com
* bpf: Call maybe_wait_bpf_programs() only once from generic_map_delete_batch()Eric Dumazet2022-02-181-1/+2
| | | | | | | | | | | As stated in the comment found in maybe_wait_bpf_programs(), the synchronize_rcu() barrier is only needed before returning to userspace, not after each deletion in the batch. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Stanislav Fomichev <sdf@google.com> Link: https://lore.kernel.org/bpf/20220218181801.2971275-1-eric.dumazet@gmail.com
* ipv6: annotate some data-races around sk->sk_protEric Dumazet2022-02-182-8/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | IPv6 has this hack changing sk->sk_prot when an IPv6 socket is 'converted' to an IPv4 one with IPV6_ADDRFORM option. This operation is only performed for TCP and UDP, knowing their 'struct proto' for the two network families are populated in the same way, and can not disappear while a reader might use and dereference sk->sk_prot. If we think about it all reads of sk->sk_prot while either socket lock or RTNL is not acquired should be using READ_ONCE(). Also note that other layers like MPTCP, XFRM, CHELSIO_TLS also write over sk->sk_prot. BUG: KCSAN: data-race in inet6_recvmsg / ipv6_setsockopt write to 0xffff8881386f7aa8 of 8 bytes by task 26932 on cpu 0: do_ipv6_setsockopt net/ipv6/ipv6_sockglue.c:492 [inline] ipv6_setsockopt+0x3758/0x3910 net/ipv6/ipv6_sockglue.c:1019 udpv6_setsockopt+0x85/0x90 net/ipv6/udp.c:1649 sock_common_setsockopt+0x5d/0x70 net/core/sock.c:3489 __sys_setsockopt+0x209/0x2a0 net/socket.c:2180 __do_sys_setsockopt net/socket.c:2191 [inline] __se_sys_setsockopt net/socket.c:2188 [inline] __x64_sys_setsockopt+0x62/0x70 net/socket.c:2188 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff8881386f7aa8 of 8 bytes by task 26911 on cpu 1: inet6_recvmsg+0x7a/0x210 net/ipv6/af_inet6.c:659 ____sys_recvmsg+0x16c/0x320 ___sys_recvmsg net/socket.c:2674 [inline] do_recvmmsg+0x3f5/0xae0 net/socket.c:2768 __sys_recvmmsg net/socket.c:2847 [inline] __do_sys_recvmmsg net/socket.c:2870 [inline] __se_sys_recvmmsg net/socket.c:2863 [inline] __x64_sys_recvmmsg+0xde/0x160 net/socket.c:2863 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0xffffffff85e0e980 -> 0xffffffff85e01580 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 26911 Comm: syz-executor.3 Not tainted 5.17.0-rc2-syzkaller-00316-g0457e5153e0e-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Reported-by: syzbot <syzkaller@googlegroups.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/ibmvnic: Cleanup workaround doing an EOI after partition migrationCédric Le Goater2022-02-181-9/+26
| | | | | | | | | | | | | | | | | | | There were a fair amount of changes to workaround a firmware bug leaving a pending interrupt after migration of the ibmvnic device : commit 2df5c60e198c ("net/ibmvnic: Ignore H_FUNCTION return from H_EOI to tolerate XIVE mode") commit 284f87d2f387 ("Revert "net/ibmvnic: Fix EOI when running in XIVE mode"") commit 11d49ce9f794 ("net/ibmvnic: Fix EOI when running in XIVE mode.") commit f23e0643cd0b ("ibmvnic: Clear pending interrupt after device reset") Here is the final one taking into account the XIVE interrupt mode. Cc: Sukadev Bhattiprolu <sukadev@linux.ibm.com> Cc: Dany Madden <drt@linux.ibm.com> Signed-off-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* teaming: deliver link-local packets with the link they arrive onjeffreyji2022-02-181-0/+5
| | | | | | | | | | | | | | | skb is ignored if team port is disabled. We want the skb to be delivered if it's an link layer packet. Issue is already fixed for bonding in commit b89f04c61efe ("bonding: deliver link-local packets with skb->dev set to link that packets arrived on") changelog: v2: change LLDP -> link layer in comments/commit descrip, comment format Signed-off-by: jeffreyji <jeffreyji@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'qca8k-phylink'David S. Miller2022-02-184-322/+429
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Russell King says: ==================== net: dsa: qca8k: convert to phylink_pcs and mark as non-legacy This series adds support into DSA for the mac_select_pcs method, and converts qca8k to make use of this, eventually marking qca8k as non- legacy. Patch 1 adds DSA support for mac_select_pcs. Patch 2 and patch 3 moves code around in qca8k to make patch 4 more readable. Patch 4 does a simple conversion to phylink_pcs. Patch 5 moves the serdes configuration to phylink_pcs. Patch 6 marks qca8k as non-legacy. v2: fix dsa_phylink_mac_select_pcs() formatting and double-blank line in patch 5 ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: dsa: qca8k: mark as non-legacyRussell King (Oracle)2022-02-181-0/+2
| | | | | | | | | | | | | | | | | | The qca8k driver does not make use of the speed, duplex, pause or advertisement in its phylink_mac_config() implementation, so it can be marked as a non-legacy driver. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: dsa: qca8k: move pcs configurationRussell King (Oracle)2022-02-181-66/+84
| | | | | | | | | | | | | | Move the PCS configuration to qca8k_pcs_config(). Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: dsa: qca8k: convert to use phylink_pcsRussell King (Oracle)2022-02-182-12/+81
| | | | | | | | | | | | | | | | Convert the qca8k driver to use the phylink_pcs support to talk to the SGMII PCS. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: dsa: qca8k: move qca8k_phylink_mac_link_state()Russell King (Oracle)2022-02-181-42/+42
| | | | | | | | | | | | | | | | Move qca8k_phylink_mac_link_state() to separate the code movement from code changes. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: dsa: qca8k: move qca8k_setup()Russell King (Oracle)2022-02-181-214/+214
| | | | | | | | | | | | | | | | Move qca8k_setup() to be later in the file to avoid needing prototypes for called functions. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: dsa: add support for phylink mac_select_pcs()Russell King (Oracle)2022-02-182-0/+18
|/ | | | | | | | | Add DSA support for the phylink mac_select_pcs() method so DSA drivers can return provide phylink with the appropriate PCS for the PHY interface mode. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: ethernet: xilinx: cleanup commentsTom Rix2022-02-185-6/+6
| | | | | | | | | | | | | | | | | | | Remove the second 'the'. Replacements: endiannes to endianness areconnected to are connected Mamagement to Management undoccumented to undocumented Xilink to Xilinx strucutre to structure Change kernel-doc comment style to c style for /* Management ... Signed-off-by: Tom Rix <trix@redhat.com> Reviewed-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: gro: Fix a 'directive in macro's argument list' sparse warningGal Pressman2022-02-181-2/+3
| | | | | | | | | | | | | | | Following the cited commit, sparse started complaining about: ../include/net/gro.h:58:1: warning: directive in macro's argument list ../include/net/gro.h:59:1: warning: directive in macro's argument list Fix that by moving the defines out of the struct_group() macro. Fixes: de5a1f3ce4c8 ("net: gro: minor optimization for dev_gro_receive()") Reviewed-by: Maxim Mikityanskiy <maximmi@nvidia.com> Signed-off-by: Gal Pressman <gal@nvidia.com> Acked-by: Alexander Lobakin <alexandr.lobakin@intel.com> Acked-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* s390/qeth: Remove redundant 'flush_workqueue()' callsXu Wang2022-02-181-1/+0
| | | | | | | | | | | | 'destroy_workqueue()' already drains the queue before destroying it, so there is no need to flush it explicitly. Remove the redundant 'flush_workqueue()' calls. Signed-off-by: Xu Wang <vulab@iscas.ac.cn> Acked-by: Alexandra Winter <wintera@linux.ibm.com> Link: https://lore.kernel.org/r/20220216075155.940-1-vulab@iscas.ac.cn Signed-off-by: Jakub Kicinski <kuba@kernel.org>
* net: dsa: delete unused exported symbols for ethtool PHY statsVladimir Oltean2022-02-182-60/+0
| | | | | | | | | | Introduced in commit cf963573039a ("net: dsa: Allow providing PHY statistics from CPU port"), it appears these were never used. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Link: https://lore.kernel.org/r/20220216193726.2926320-1-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
* net: add sanity check in proto_register()Eric Dumazet2022-02-181-0/+4
| | | | | | | | | | | | prot->memory_allocated should only be set if prot->sysctl_mem is also set. This is a followup of commit 25206111512d ("crypto: af_alg - get rid of alg_memory_allocated"). Signed-off-by: Eric Dumazet <edumazet@google.com> Link: https://lore.kernel.org/r/20220216171801.3604366-1-eric.dumazet@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
* net: ll_temac: Use GFP_KERNEL instead of GFP_ATOMIC when possibleChristophe JAILLET2022-02-181-2/+3
| | | | | | | | | | | | | | | | | XTE_MAX_JUMBO_FRAME_SIZE is over 9000 bytes and the default value for 'rx_bd_num' is RX_BD_NUM_DEFAULT (i.e. 1024) So this loop allocates more than 9 Mo of memory. Previous memory allocations in this function already use GFP_KERNEL, so use __netdev_alloc_skb_ip_align() and an explicit GFP_KERNEL instead of a implicit GFP_ATOMIC. This gives more opportunities of successful allocation. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/694abd65418b2b3974106a82d758e3474c65ae8f.1645042560.git.christophe.jaillet@wanadoo.fr Signed-off-by: Jakub Kicinski <kuba@kernel.org>
* net: nixge: Use GFP_KERNEL instead of GFP_ATOMIC when possibleChristophe JAILLET2022-02-181-2/+3
| | | | | | | | | | | | | | | | NIXGE_MAX_JUMBO_FRAME_SIZE is over 9000 bytes and RX_BD_NUM 128. So this loop allocates more than 1 Mo of memory. Previous memory allocations in this function already use GFP_KERNEL, so use __netdev_alloc_skb_ip_align() and an explicit GFP_KERNEL instead of a implicit GFP_ATOMIC. This gives more opportunities of successful allocation. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/28d2c8e05951ad02a57eb48333672947c8bb4f81.1645043881.git.christophe.jaillet@wanadoo.fr Signed-off-by: Jakub Kicinski <kuba@kernel.org>
* Merge branch 'mptcp-selftest-fine-tuning-and-cleanup'Jakub Kicinski2022-02-183-66/+85
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mat Martineau says: ==================== mptcp: Selftest fine-tuning and cleanup Patch 1 adjusts the mptcp selftest timeout to account for slow machines running debug builds. Patch 2 simplifies one test function. Patches 3-6 do some cleanup, like deleting unused variables and avoiding extra work when only printing usage information. Patch 7 improves the checksum tests by utilizing existing checksum MIBs. ==================== Link: https://lore.kernel.org/r/20220218030311.367536-1-mathew.j.martineau@linux.intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| * selftests: mptcp: add csum mib check for mptcp_connectGeliang Tang2022-02-181-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch added the data checksum error mib counters check for the script mptcp_connect.sh when the data checksum is enabled. In do_transfer(), got the mib counters twice, before and after running the mptcp_connect commands. The latter minus the former is the actual number of the data checksum mib counter. The output looks like this: ns1 MPTCP -> ns2 (dead:beef:1::2:10007) MPTCP (duration 86ms) [ OK ] ns1 MPTCP -> ns2 (10.0.2.1:10008 ) MPTCP (duration 66ms) [ FAIL ] server got 1 data checksum error[s] Fixes: 94d66ba1d8e48 ("selftests: mptcp: enable checksum in mptcp_connect.sh") Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/255 Signed-off-by: Geliang Tang <geliang.tang@suse.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| * selftests: mptcp: join: check for tools only if neededMatthieu Baerts2022-02-181-18/+20
| | | | | | | | | | | | | | | | | | | | | | To allow showing the 'help' menu even if these tools are not available. While at it, also avoid launching the command then checking $?. Instead, the check is directly done in the 'if'. Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| * selftests: mptcp: join: create tmp files only if neededMatthieu Baerts2022-02-181-13/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | These tmp files will only be created when a test will be launched. This avoid 'dd' output when '-h' is used for example. While at it, also avoid creating netns that will be removed when starting the first test. Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| * selftests: mptcp: join: remove unused varsMatthieu Baerts2022-02-181-4/+1
| | | | | | | | | | | | | | | | | | | | | | Shellcheck found that these variables were set but never used. Note that rndh is no longer prefixed with '0-' but it doesn't change anything. Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| * selftests: mptcp: join: exit after usage()Matthieu Baerts2022-02-181-1/+12
| | | | | | | | | | | | | | | | With an error if it is an unknown option. Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| * selftests: mptcp: simplify pm_nl_change_endpointGeliang Tang2022-02-181-29/+8
| | | | | | | | | | | | | | | | | | | | This patch simplified pm_nl_change_endpoint(), using id-based address lookups only. And dropped the fragile way of parsing 'addr' and 'id' from the output of pm_nl_show_endpoints(). Signed-off-by: Geliang Tang <geliang.tang@suse.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| * selftests: mptcp: increase timeout to 20 minutesMatthieu Baerts2022-02-181-1/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | With the increase number of tests, one CI instance, using a debug kernel config and not recent hardware, takes around 10 minutes to execute the slowest MPTCP test: mptcp_join.sh. Even if most CIs don't take that long to execute these tests -- typically max 10 minutes to run all selftests -- it will help some of them if the timeout is increased. The timeout could be disabled but it is always good to have an extra safeguard, just in case. Please note that on slow public CIs with kernel debug settings, it has been observed it can easily take up to 45 minutes to execute all tests in this very slow environment with other jobs running in parallel. The slowest test, mptcp_join.sh takes ~30 minutes in this case. In such environments, the selftests timeout set in the 'settings' file is disabled because this environment is known as being exceptionnally slow. It has been decided not to take such exceptional environments into account and set the timeout to 20min. Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
* Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextJakub Kicinski2022-02-1834-524/+1502
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Daniel Borkmann says: ==================== bpf-next 2022-02-17 We've added 29 non-merge commits during the last 8 day(s) which contain a total of 34 files changed, 1502 insertions(+), 524 deletions(-). The main changes are: 1) Add BTFGen support to bpftool which allows to use CO-RE in kernels without BTF info, from Mauricio Vásquez, Rafael David Tinoco, Lorenzo Fontana and Leonardo Di Donato. (Details: https://lpc.events/event/11/contributions/948/) 2) Prepare light skeleton to be used in both kernel module and user space and convert bpf_preload.ko to use light skeleton, from Alexei Starovoitov. 3) Rework bpftool's versioning scheme and align with libbpf's version number; also add linked libbpf version info to "bpftool version", from Quentin Monnet. 4) Add minimal C++ specific additions to bpftool's skeleton codegen to facilitate use of C skeletons in C++ applications, from Andrii Nakryiko. 5) Add BPF verifier sanity check whether relative offset on kfunc calls overflows desc->imm and reject the BPF program if the case, from Hou Tao. 6) Fix libbpf to use a dynamically allocated buffer for netlink messages to avoid receiving truncated messages on some archs, from Toke Høiland-Jørgensen. 7) Various follow-up fixes to the JIT bpf_prog_pack allocator, from Song Liu. 8) Various BPF selftest and vmtest.sh fixes, from Yucong Sun. 9) Fix bpftool pretty print handling on dumping map keys/values when no BTF is available, from Jiri Olsa and Yinjun Zhang. 10) Extend XDP frags selftest to check for invalid length, from Lorenzo Bianconi. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (29 commits) bpf: bpf_prog_pack: Set proper size before freeing ro_header selftests/bpf: Fix crash in core_reloc when bpftool btfgen fails selftests/bpf: Fix vmtest.sh to launch smp vm. libbpf: Fix memleak in libbpf_netlink_recv() bpftool: Fix C++ additions to skeleton bpftool: Fix pretty print dump for maps without BTF loaded selftests/bpf: Test "bpftool gen min_core_btf" bpftool: Gen min_core_btf explanation and examples bpftool: Implement btfgen_get_btf() bpftool: Implement "gen min_core_btf" logic bpftool: Add gen min_core_btf command libbpf: Expose bpf_core_{add,free}_cands() to bpftool libbpf: Split bpf_core_apply_relo() bpf: Reject kfunc calls that overflow insn->imm selftests/bpf: Add Skeleton templated wrapper as an example bpftool: Add C++-specific open/load/etc skeleton wrappers selftests/bpf: Fix GCC11 compiler warnings in -O2 mode bpftool: Fix the error when lookup in no-btf maps libbpf: Use dynamically allocated buffer when receiving netlink messages libbpf: Fix libbpf.map inheritance chain for LIBBPF_0.7.0 ... ==================== Link: https://lore.kernel.org/r/20220217232027.29831-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| * bpf: bpf_prog_pack: Set proper size before freeing ro_headerSong Liu2022-02-171-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | bpf_prog_pack_free() uses header->size to decide whether the header should be freed with module_memfree() or the bpf_prog_pack logic. However, in kvmalloc() failure path of bpf_jit_binary_pack_alloc(), header->size is not set yet. As a result, bpf_prog_pack_free() may treat a slice of a pack as a standalone kvmalloc'd header and call module_memfree() on the whole pack. This in turn causes use-after-free by other users of the pack. Fix this by setting ro_header->size before freeing ro_header. Fixes: 33c9805860e5 ("bpf: Introduce bpf_jit_binary_pack_[alloc|finalize|free]") Reported-by: syzbot+2f649ec6d2eea1495a8f@syzkaller.appspotmail.com Reported-by: syzbot+ecb1e7e51c52f68f7481@syzkaller.appspotmail.com Reported-by: syzbot+87f65c75f4a72db05445@syzkaller.appspotmail.com Signed-off-by: Song Liu <song@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20220217183001.1876034-1-song@kernel.org
| * selftests/bpf: Fix crash in core_reloc when bpftool btfgen failsYucong Sun2022-02-171-2/+2
| | | | | | | | | | | | | | | | Avoid unnecessary goto cleanup, as there is nothing to clean up. Signed-off-by: Yucong Sun <fallentree@fb.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220217180210.2981502-1-fallentree@fb.com
| * selftests/bpf: Fix vmtest.sh to launch smp vm.Yucong Sun2022-02-171-1/+1
| | | | | | | | | | | | | | | | Fix typo in vmtest.sh to make sure it launch proper vm with 8 cpus. Signed-off-by: Yucong Sun <fallentree@fb.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220217155212.2309672-1-fallentree@fb.com
| * libbpf: Fix memleak in libbpf_netlink_recv()Andrii Nakryiko2022-02-171-3/+5
| | | | | | | | | | | | | | | | | | | | | | Ensure that libbpf_netlink_recv() frees dynamically allocated buffer in all code paths. Fixes: 9c3de619e13e ("libbpf: Use dynamically allocated buffer when receiving netlink messages") Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/bpf/20220217073958.276959-1-andrii@kernel.org
| * bpftool: Fix C++ additions to skeletonAndrii Nakryiko2022-02-171-7/+7
| | | | | | | | | | | | | | | | | | | | | | Mark C++-specific T::open() and other methods as static inline to avoid symbol redefinition when multiple files use the same skeleton header in an application. Fixes: bb8ffe61ea45 ("bpftool: Add C++-specific open/load/etc skeleton wrappers") Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20220216233540.216642-1-andrii@kernel.org
| * bpftool: Fix pretty print dump for maps without BTF loadedJiri Olsa2022-02-171-16/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The commit e5043894b21f ("bpftool: Use libbpf_get_error() to check error") fails to dump map without BTF loaded in pretty mode (-p option). Fixing this by making sure get_map_kv_btf won't fail in case there's no BTF available for the map. Fixes: e5043894b21f ("bpftool: Use libbpf_get_error() to check error") Suggested-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220216092102.125448-1-jolsa@kernel.org
| * Merge branch 'libbpf: Implement BTFGen'Andrii Nakryiko2022-02-1610-113/+863
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mauricio Vásquez <mauricio@kinvolk.io> says: ==================== CO-RE requires to have BTF information describing the kernel types in order to perform the relocations. This is usually provided by the kernel itself when it's configured with CONFIG_DEBUG_INFO_BTF. However, this configuration is not enabled in all the distributions and it's not available on kernels before 5.12. It's possible to use CO-RE in kernels without CONFIG_DEBUG_INFO_BTF support by providing the BTF information from an external source. BTFHub[0] contains BTF files to each released kernel not supporting BTF, for the most popular distributions. Providing this BTF file for a given kernel has some challenges: 1. Each BTF file is a few MBs big, then it's not possible to ship the eBPF program with all the BTF files needed to run in different kernels. (The BTF files will be in the order of GBs if you want to support a high number of kernels) 2. Downloading the BTF file for the current kernel at runtime delays the start of the program and it's not always possible to reach an external host to download such a file. Providing the BTF file with the information about all the data types of the kernel for running an eBPF program is an overkill in many of the cases. Usually the eBPF programs access only some kernel fields. This series implements BTFGen support in bpftool. This idea was discussed during the "Towards truly portable eBPF"[1] presentation at Linux Plumbers 2021. There is a good example[2] on how to use BTFGen and BTFHub together to generate multiple BTF files, to each existing/supported kernel, tailored to one application. For example: a complex bpf object might support nearly 400 kernels by having BTF files summing only 1.5 MB. [0]: https://github.com/aquasecurity/btfhub/ [1]: https://www.youtube.com/watch?v=igJLKyP1lFk&t=2418s [2]: https://github.com/aquasecurity/btfhub/tree/main/tools Changelog: v6 > v7: - use array instead of hashmap to store ids - use btf__add_{struct,union}() instead of memcpy() - don't use fixed path for testing BTF file - update example to use DECLARE_LIBBPF_OPTS() v5 > v6: - use BTF structure to store used member/types instead of hashmaps - remove support for input/output folders - remove bpf_core_{created,free}_cand_cache() - reorganize commits to avoid having unused static functions - remove usage of libbpf_get_error() - fix some errno propagation issues - do not record full types for type-based relocations - add support for BTF_KIND_FUNC_PROTO - implement tests based on core_reloc ones v4 > v5: - move some checks before invoking prog->obj->gen_loader - use p_info() instead of printf() - improve command output - fix issue with record_relo_core() - implement bash completion - write man page - implement some tests v3 > v4: - parse BTF and BTF.ext sections in bpftool and use bpf_core_calc_relo_insn() directly - expose less internal details from libbpf to bpftool - implement support for enum-based relocations - split commits in a more granular way v2 > v3: - expose internal libbpf APIs to bpftool instead - implement btfgen in bpftool - drop btf__raw_data() from libbpf v1 > v2: - introduce bpf_object__prepare() and ‘record_core_relos’ to expose CO-RE relocations instead of bpf_object__reloc_info_gen() - rename btf__save_to_file() to btf__raw_data() v1: https://lore.kernel.org/bpf/20211027203727.208847-1-mauricio@kinvolk.io/ v2: https://lore.kernel.org/bpf/20211116164208.164245-1-mauricio@kinvolk.io/ v3: https://lore.kernel.org/bpf/20211217185654.311609-1-mauricio@kinvolk.io/ v4: https://lore.kernel.org/bpf/20220112142709.102423-1-mauricio@kinvolk.io/ v5: https://lore.kernel.org/bpf/20220128223312.1253169-1-mauricio@kinvolk.io/ v6: https://lore.kernel.org/bpf/20220209222646.348365-1-mauricio@kinvolk.io/ Mauricio Vásquez (6): libbpf: split bpf_core_apply_relo() libbpf: Expose bpf_core_{add,free}_cands() to bpftool bpftool: Add gen min_core_btf command bpftool: Implement "gen min_core_btf" logic bpftool: Implement btfgen_get_btf() selftests/bpf: Test "bpftool gen min_core_btf" ==================== Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
| | * selftests/bpf: Test "bpftool gen min_core_btf"Mauricio Vásquez2022-02-161-2/+48
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit reuses the core_reloc test to check if the BTF files generated with "bpftool gen min_core_btf" are correct. This introduces test_core_btfgen() that runs all the core_reloc tests, but this time the source BTF files are generated by using "bpftool gen min_core_btf". The goal of this test is to check that the generated files are usable, and not to check if the algorithm is creating an optimized BTF file. Signed-off-by: Mauricio Vásquez <mauricio@kinvolk.io> Signed-off-by: Rafael David Tinoco <rafael.tinoco@aquasec.com> Signed-off-by: Lorenzo Fontana <lorenzo.fontana@elastic.co> Signed-off-by: Leonardo Di Donato <leonardo.didonato@elastic.co> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220215225856.671072-8-mauricio@kinvolk.io
| | * bpftool: Gen min_core_btf explanation and examplesRafael David Tinoco2022-02-161-0/+90
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add "min_core_btf" feature explanation and one example of how to use it to bpftool-gen man page. Signed-off-by: Mauricio Vásquez <mauricio@kinvolk.io> Signed-off-by: Rafael David Tinoco <rafael.tinoco@aquasec.com> Signed-off-by: Lorenzo Fontana <lorenzo.fontana@elastic.co> Signed-off-by: Leonardo Di Donato <leonardo.didonato@elastic.co> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220215225856.671072-7-mauricio@kinvolk.io
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-27 05:49:38 +0100