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2025-05-05selftests: drv: net: avoid skipping testsMohsin Bashir
On a system with either of the ipv4 or ipv6 information missing, tests are currently skipped. Ideally, the test should run as long as at least one address family is present. This patch make test run whenever possible. Before: ./drivers/net/ping.py TAP version 13 1..6 ok 1 ping.test_default # SKIP Test requires IPv4 connectivity ok 2 ping.test_xdp_generic_sb # SKIP Test requires IPv4 connectivity ok 3 ping.test_xdp_generic_mb # SKIP Test requires IPv4 connectivity ok 4 ping.test_xdp_native_sb # SKIP Test requires IPv4 connectivity ok 5 ping.test_xdp_native_mb # SKIP Test requires IPv4 connectivity ok 6 ping.test_xdp_offload # SKIP device does not support offloaded XDP Totals: pass:0 fail:0 xfail:0 xpass:0 skip:6 error:0 After: ./drivers/net/ping.py TAP version 13 1..6 ok 1 ping.test_default ok 2 ping.test_xdp_generic_sb ok 3 ping.test_xdp_generic_mb ok 4 ping.test_xdp_native_sb ok 5 ping.test_xdp_native_mb ok 6 ping.test_xdp_offload # SKIP device does not support offloaded XDP Totals: pass:5 fail:0 xfail:0 xpass:0 skip:1 error:0 Fixes: 75cc19c8ff89 ("selftests: drv-net: add xdp cases for ping.py") Signed-off-by: Mohsin Bashir <mohsin.bashr@gmail.com> Link: https://patch.msgid.link/20250503013518.1722913-3-mohsin.bashr@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05selftests: drv: net: fix test failure on ipv6 sysMohsin Bashir
The `get_interface_info` call has ip version hard-coded which leads to failures on an IPV6 system. The NetDrvEnv class already gathers information about remote interface, so instead of fixing the local implementation switch to using cfg.remote_ifname. Before: ./drivers/net/ping.py Traceback (most recent call last): File "/new_tests/./drivers/net/ping.py", line 217, in <module> main() File "/new_tests/./drivers/net/ping.py", line 204, in main get_interface_info(cfg) File "/new_tests/./drivers/net/ping.py", line 128, in get_interface_info raise KsftFailEx('Can not get remote interface') net.lib.py.ksft.KsftFailEx: Can not get remote interface After: ./drivers/net/ping.py TAP version 13 1..6 ok 1 ping.test_default # SKIP Test requires IPv4 connectivity ok 2 ping.test_xdp_generic_sb # SKIP Test requires IPv4 connectivity ok 3 ping.test_xdp_generic_mb # SKIP Test requires IPv4 connectivity ok 4 ping.test_xdp_native_sb # SKIP Test requires IPv4 connectivity ok 5 ping.test_xdp_native_mb # SKIP Test requires IPv4 connectivity ok 6 ping.test_xdp_offload # SKIP device does not support offloaded XDP Totals: pass:0 fail:0 xfail:0 xpass:0 skip:6 error:0 Fixes: 75cc19c8ff89 ("selftests: drv-net: add xdp cases for ping.py") Signed-off-by: Mohsin Bashir <mohsin.bashr@gmail.com> Reviewed-by: David Wei <dw@davidwei.uk> Link: https://patch.msgid.link/20250503013518.1722913-2-mohsin.bashr@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05selftests: Add IPv6 link-local address generation tests for GRE devices.Guillaume Nault
GRE devices have their special code for IPv6 link-local address generation that has been the source of several regressions in the past. Add selftest to check that all gre, ip6gre, gretap and ip6gretap get an IPv6 link-link local address in accordance with the net.ipv6.conf.<dev>.addr_gen_mode sysctl. Note: This patch was originally applied as commit 6f50175ccad4 ("selftests: Add IPv6 link-local address generation tests for GRE devices."). However, it was then reverted by commit 355d940f4d5a ("Revert "selftests: Add IPv6 link-local address generation tests for GRE devices."") because the commit it depended on was going to be reverted. Now that the situation is resolved, we can add this selftest again (no changes since original patch, appart from context update in tools/testing/selftests/net/Makefile). Signed-off-by: Guillaume Nault <gnault@redhat.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Tested-by: Ido Schimmel <idosch@nvidia.com> Link: https://patch.msgid.link/2c3a5733cb3a6e3119504361a9b9f89fda570a2d.1746225214.git.gnault@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05selftests: iou-zcrx: Clean up build warnings for error formatHaiyue Wang
Clean up two build warnings: [1] iou-zcrx.c: In function ‘process_recvzc’: iou-zcrx.c:263:37: warning: too many arguments for format [-Wformat-extra-args] 263 | error(1, 0, "payload mismatch at ", i); | ^~~~~~~~~~~~~~~~~~~~~~ [2] Use "%zd" for ssize_t type as better iou-zcrx.c: In function ‘run_client’: iou-zcrx.c:357:47: warning: format ‘%d’ expects argument of type ‘int’, but argument 4 has type ‘ssize_t’ {aka ‘long int’} [-Wformat=] 357 | error(1, 0, "send(): %d", sent); | ~^ ~~~~ | | | | int ssize_t {aka long int} | %ld Signed-off-by: Haiyue Wang <haiyuewa@163.com> Reviewed-by: David Wei <dw@davidwei.uk> Link: https://patch.msgid.link/20250502175136.1122-1-haiyuewa@163.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05selftests: mptcp: add chk_sublfow in diag.shGang Yan
This patch aims to add chk_dump_subflow in diag.sh. The subflow's info can be obtained through "ss -tin", then use the 'mptcp_diag' to verify the token in subflow_info. Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/524 Co-developed-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Gang Yan <yangang@kylinos.cn> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250502-net-next-mptcp-sft-inc-cover-v1-7-68eec95898fb@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05selftests: mptcp: add helpers to get subflow_infoGang Yan
This patch adds 'get_subflow_info' in 'mptcp_diag', which can check whether a TCP connection is an MPTCP subflow based on the "INET_ULP_INFO_MPTCP" with tcp_diag method. The helper 'print_subflow_info' in 'mptcp_diag' can print the subflow_filed of an MPTCP subflow for further checking the 'subflow_info' through inet_diag method. The example of the whole output should be: $ ./mptcp_diag -s "127.0.0.1:10000 127.0.0.1:38984" 127.0.0.1:10000 -> 127.0.0.1:38984 It's a mptcp subflow, the subflow info: flags:Mec token:0000(id:0)/4278e77e(id:0) seq:9288466187236176036 \ sfseq:1 ssnoff:2317083055 maplen:215 Co-developed-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Gang Yan <yangang@kylinos.cn> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250502-net-next-mptcp-sft-inc-cover-v1-6-68eec95898fb@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05selftests: mptcp: refactor NLMSG handling with 'proto'Gang Yan
This patch introduces the '__u32 proto' variable to the 'send_query' and 'recv_nlmsg' functions for further extending function. In the 'send_query' function, the inclusion of this variable makes the structure clearer and more readable. In the 'recv_nlmsg' function, the '__u32 proto' variable ensures that the 'diag_info' field remains unmodified when processing IPPROTO_TCP data, thereby preventing unintended transformation into 'mptcp_info' format. While at it, increment iovlen directly when an item is added to simplify this portion of the code and improve its readaility. Co-developed-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Gang Yan <yangang@kylinos.cn> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250502-net-next-mptcp-sft-inc-cover-v1-5-68eec95898fb@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05selftests: mptcp: refactor send_query parameters for code clarityGang Yan
This patch use 'inet_diag_req_v2' instead of 'token' as parameters of send_query, and construct the req in 'get_mptcpinfo'. This modification enhances the clarity of the code, and prepare for the dump_subflow_info. Co-developed-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Gang Yan <yangang@kylinos.cn> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250502-net-next-mptcp-sft-inc-cover-v1-4-68eec95898fb@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05selftests: mptcp: add struct params in mptcp_diagGang Yan
This patch adds a struct named 'params' to save 'target_token' and other future parameters. This structure facilitates future function expansions. Co-developed-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Geliang Tang <geliang@kernel.org> Signed-off-by: Gang Yan <yangang@kylinos.cn> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250502-net-next-mptcp-sft-inc-cover-v1-3-68eec95898fb@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05selftests: mptcp: sockopt: use IPPROTO_MPTCP for getaddrinfoGeliang Tang
getaddrinfo MPTCP is recently supported in glibc and IPPROTO_MPTCP for getaddrinfo is used in mptcp_connect.c. But in mptcp_sockopt.c and mptcp_inq.c, IPPROTO_TCP are still used for getaddrinfo, So this patch updates them. Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250502-net-next-mptcp-sft-inc-cover-v1-2-68eec95898fb@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05selftests: mptcp: info: hide 'grep: write error' warningsMatthieu Baerts (NGI0)
mptcp_lib_get_info_value() will only print the first entry that match the filter because of the ';q' at the end. As a consequence, the 'sed' command could finish before the previous 'grep' one and print a 'write error' warning because it is trying to write data to the closed pipe. Such warnings are not interesting, they can be hidden by muting stderr here for grep. While at it, clearly indicate that mptcp_lib_get_info_value() will only print the first matched entry to avoid confusions later on. Reviewed-by: Mat Martineau <martineau@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250502-net-next-mptcp-sft-inc-cover-v1-1-68eec95898fb@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05selftests: ublk: kublk: fix include pathUday Shankar
Building kublk currently fails (with a "could not find linux/ublk_cmd.h" error message) if kernel headers are not installed in a system-global location (i.e. somewhere in the compiler's default include search path). This failure is unnecessary, as make kselftest installs kernel headers in the build tree - kublk's build just isn't looking for them properly. There is an include path in kublk's CFLAGS which is probably intended to find the kernel headers installed in the build tree; fix it so that it can actually find them. This introduces some macro redefinition issues between glibc-provided headers and kernel headers; fix those by eliminating one include in kublk. Signed-off-by: Uday Shankar <ushankar@purestorage.com> Reviewed-by: Caleb Sander Mateos <csander@purestorage.com> Reviewed-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20250429-ublk_selftests-v2-3-e970b6d9e4f4@purestorage.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-05selftests: ublk: make test_generic_06 silent on successUday Shankar
Convention dictates that tests should not log anything on success. Make test_generic_06 follow this convention. Signed-off-by: Uday Shankar <ushankar@purestorage.com> Reviewed-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20250429-ublk_selftests-v2-2-e970b6d9e4f4@purestorage.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-05selftests: ublk: kublk: build with -Werror iff WERROR!=0Uday Shankar
Compiler warnings can catch bugs at compile time; thus, heeding them is usually a good idea. Turn warnings into errors by default for the kublk build so that anyone making changes is forced to heed them. Compiler warnings can also sometimes produce annoying false positives, so provide a flag WERROR that the developer can use as follows to have the build and selftests run go through even if there are warnings: make WERROR=0 TARGETS=ublk kselftest Signed-off-by: Uday Shankar <ushankar@purestorage.com> Reviewed-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20250429-ublk_selftests-v2-1-e970b6d9e4f4@purestorage.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-05selftests/bpf: Remove sockmap_ktls disconnect_after_delete testIhor Solodrai
"sockmap_ktls disconnect_after_delete" is effectively moot after disconnect has been disabled for TLS [1][2]. Remove the test completely. [1] https://lore.kernel.org/bpf/20250416170246.2438524-1-ihor.solodrai@linux.dev/ [2] https://lore.kernel.org/netdev/20250404180334.3224206-1-kuba@kernel.org/ Signed-off-by: Ihor Solodrai <isolodrai@meta.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20250502185221.1556192-1-isolodrai@meta.com
2025-05-05selftests/tc-testing: Add a test case to cover basic HTB+FQ_CODEL caseCong Wang
Integrate the reproducer from Alan into TC selftests and use scapy to generate TCP traffic instead of relying on ping command. Cc: Alan J. Wylie <alan@wylie.me.uk> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Link: https://patch.msgid.link/20250428232955.1740419-3-xiyou.wangcong@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05Merge tag 'for-netdev' of ↵Jakub Kicinski
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next Martin KaFai Lau says: ==================== pull-request: bpf-next 2025-05-02 We've added 14 non-merge commits during the last 10 day(s) which contain a total of 13 files changed, 740 insertions(+), 121 deletions(-). The main changes are: 1) Avoid skipping or repeating a sk when using a UDP bpf_iter, from Jordan Rife. 2) Fixed a crash when a bpf qdisc is set in the net.core.default_qdisc, from Amery Hung. 3) A few other fixes in the bpf qdisc, from Amery Hung. - Always call qdisc_watchdog_init() in the .init prologue such that the .reset/.destroy epilogue can always call qdisc_watchdog_cancel() without issue. - bpf_qdisc_init_prologue() was incorrectly returning an error when the bpf qdisc is set as the default_qdisc and the mq is creating the default_qdisc. It is now fixed. * tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: selftests/bpf: Cleanup bpf qdisc selftests selftests/bpf: Test attaching a bpf qdisc with incomplete operators bpf: net_sched: Make some Qdisc_ops ops mandatory selftests/bpf: Test setting and creating bpf qdisc as default qdisc bpf: net_sched: Fix bpf qdisc init prologue when set as default qdisc selftests/bpf: Add tests for bucket resume logic in UDP socket iterators selftests/bpf: Return socket cookies from sock_iter_batch progs bpf: udp: Avoid socket skips and repeats during iteration bpf: udp: Use bpf_udp_iter_batch_item for bpf_udp_iter_state batch items bpf: udp: Get rid of st_bucket_done bpf: udp: Make sure iter->batch always contains a full bucket snapshot bpf: udp: Make mem flags configurable through bpf_iter_udp_realloc_batch bpf: net_sched: Fix using bpf qdisc as default qdisc selftests/bpf: Fix compilation errors ==================== Link: https://patch.msgid.link/20250503010755.4030524-1-martin.lau@linux.dev Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-05KVM: arm64: selftest: Don't try to disable AArch64 supportMarc Zyngier
Trying to cut the branch you are sat on is pretty dumb. And so is trying to disable the instruction set you are executing on. Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com> Link: https://lore.kernel.org/r/20250429114117.3618800-3-maz@kernel.org Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2025-05-05Merge branch 'block-6.15' into for-6.16/blockJens Axboe
Merge 6.15 block fixes in, once again, to resolve conflicts with the fixes for ublk that went into mainline and the 6.16 ublk updates. * block-6.15: nvmet-auth: always free derived key data nvmet-tcp: don't restore null sk_state_change nvmet-tcp: select CONFIG_TLS from CONFIG_NVME_TARGET_TCP_TLS nvme-tcp: select CONFIG_TLS from CONFIG_NVME_TCP_TLS nvme-tcp: fix premature queue removal and I/O failover nvme-pci: add quirks for WDC Blue SN550 15b7:5009 nvme-pci: add quirks for device 126f:1001 nvme-pci: fix queue unquiesce check on slot_reset ublk: remove the check of ublk_need_req_ref() from __ublk_check_and_get_req ublk: enhance check for register/unregister io buffer command ublk: decouple zero copy from user copy selftests: ublk: fix UBLK_F_NEED_GET_DATA Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-05selftests: netfilter: nft_fib.sh: check lo packets bypass fib lookupFlorian Westphal
With reverted fix: PASS: fib expression did not cause unwanted packet drops [ 37.285169] ns1-KK76Kt nft_rpfilter: IN=lo OUT= MAC=00:00:00:00:00:00:00:00:00:00:00:00:08:00 SRC=127.0.0.1 DST=127.0.0.1 LEN=84 TOS=0x00 PREC=0x00 TTL=64 ID=32287 DF PROTO=ICMP TYPE=8 CODE=0 ID=1818 SEQ=1 FAIL: rpfilter did drop packets FAIL: ns1-KK76Kt cannot reach 127.0.0.1, ret 0 Check for this. Link: https://lore.kernel.org/netfilter/20250422114352.GA2092@breakpoint.cc/ Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-05-05selftests: netfilter: add conntrack stress testFlorian Westphal
Add a new test case to check: - conntrack_max limit is effective - conntrack_max limit cannot be exceeded from within a netns - resizing the hash table while packets are inflight works - removal of all conntrack rules disables conntrack in netns - conntrack tool dump (conntrack -L) returns expected number of (unique) entries - procfs interface - if available - has same number of entries as conntrack -L dump Expected output with selftest framework: selftests: net/netfilter: conntrack_resize.sh PASS: got 1 connections: netns conntrack_max is pernet bound PASS: got 100 connections: netns conntrack_max is init_net bound PASS: dump in netns had same entry count (-C 1778, -L 1778, -p 1778, /proc 0) PASS: dump in netns had same entry count (-C 2000, -L 2000, -p 2000, /proc 0) PASS: test parallel conntrack dumps PASS: resize+flood PASS: got 0 connections: conntrack disabled PASS: got 1 connections: conntrack enabled ok 1 selftests: net/netfilter: conntrack_resize.sh Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-05-04Merge tag 'v6.15-rc4' into x86/fpu, to pick up fixesIngo Molnar
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2025-05-03futex,selftests: Add another FUTEX2_NUMA selftestPeter Zijlstra
Implement a simple NUMA aware spinlock for testing and howto purposes. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
2025-05-03selftests/futex: Add futex_numa_mpolSebastian Andrzej Siewior
Test the basic functionality for the NUMA and MPOL flags: - FUTEX2_NUMA should take the NUMA node which is after the uaddr and use it. - Only update the node if FUTEX_NO_NODE was set by the user - FUTEX2_MPOL should use the memory based on the policy. I attempted to set the node with mbind() and then use this with MPOL but this fails and futex falls back to the default node for the current CPU. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20250416162921.513656-22-bigeasy@linutronix.de
2025-05-03selftests/futex: Add futex_priv_hashSebastian Andrzej Siewior
Test the basic functionality of the private hash: - Upon start, with no threads there is no private hash. - The first thread initializes the private hash. - More than four threads will increase the size of the private hash if the system has more than 16 CPUs online. - Once the user sets the size of private hash, auto scaling is disabled. - The user is only allowed to use numbers to the power of two. - The user may request the global or make the hash immutable. - Once the global hash has been set or the hash has been made immutable, further changes are not allowed. - Futex operations should work the whole time. It must be possible to hold a lock, such a PI initialised mutex, during the resize operation. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20250416162921.513656-21-bigeasy@linutronix.de
2025-05-03selftests/futex: Build without headers nonsensePeter Zijlstra
Make it build without relying on recent headers. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
2025-05-02selftests/bpf: Cleanup bpf qdisc selftestsAmery Hung
Some cleanups: - Remove unnecessary kfuncs declaration - Use _ns in the test name to run tests in a separate net namespace - Call skeleton __attach() instead of bpf_map__attach_struct_ops() to simplify tests. Signed-off-by: Amery Hung <ameryhung@gmail.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2025-05-02selftests/bpf: Test attaching a bpf qdisc with incomplete operatorsAmery Hung
Implement .destroy in bpf_fq and bpf_fifo as it is now mandatory. Test attaching a bpf qdisc with a missing operator .init. This is not allowed as bpf qdisc qdisc_watchdog_cancel() could have been called with an uninitialized timer. Signed-off-by: Amery Hung <ameryhung@gmail.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2025-05-02selftests/bpf: Test setting and creating bpf qdisc as default qdiscAmery Hung
First, test that bpf qdisc can be set as default qdisc. Then, attach an mq qdisc to see if bpf qdisc can be successfully created and grafted. The test is a sequential test as net.core.default_qdisc is global. Signed-off-by: Amery Hung <ameryhung@gmail.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2025-05-02KVM: selftests: Add a basic SEV-SNP smoke testPratik R. Sampat
Extend sev_smoke_test to also run a minimal SEV-SNP smoke test that initializes and sets up private memory regions required to run a simple SEV-SNP guest. Similar to its SEV-ES smoke test counterpart, this also does not support GHCB and ucall yet and uses the GHCB MSR protocol to trigger an exit of the type KVM_EXIT_SYSTEM_EVENT. Signed-off-by: Pratik R. Sampat <prsampat@amd.com> Link: https://lore.kernel.org/r/20250305230000.231025-11-prsampat@amd.com Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-05-02KVM: selftests: Decouple SEV policy from VM typePratik R. Sampat
In preparation for SNP, cleanup the smoke test to decouple deriving type from policy. This will allow reusing the existing interfaces for SNP. No functional change intended. Signed-off-by: Pratik R. Sampat <prsampat@amd.com> Link: https://lore.kernel.org/r/20250305230000.231025-10-prsampat@amd.com [sean: massage shortlog+changelog] Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-05-02KVM: selftests: Force GUEST_MEMFD flag for SNP VM typePratik R. Sampat
Force the SEV-SNP VM type to set the KVM_MEM_GUEST_MEMFD flag for the creation of private memslots. Signed-off-by: Pratik R. Sampat <prsampat@amd.com> Link: https://lore.kernel.org/r/20250305230000.231025-9-prsampat@amd.com [sean: add a comment, don't break non-x86] Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-05-02KVM: selftests: Add library support for interacting with SNPPratik R. Sampat
Extend the SEV library to include support for SNP ioctl() wrappers, which aid in launching and interacting with a SEV-SNP guest. Signed-off-by: Pratik R. Sampat <prsampat@amd.com> Link: https://lore.kernel.org/r/20250305230000.231025-8-prsampat@amd.com [sean: use BIT()] Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-05-02KVM: selftests: Introduce SEV VM type checkPratik R. Sampat
In preparation for SNP, declutter the vm type check by introducing a SEV-SNP VM type check as well as a transitive set of helper functions. The SNP VM type is the subset of SEV-ES. Similarly, the SEV-ES and SNP types are subset of the SEV VM type check. Signed-off-by: Pratik R. Sampat <prsampat@amd.com> Link: https://lore.kernel.org/r/20250305230000.231025-7-prsampat@amd.com [sean: make the helpers static inlines] Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-05-02KVM: selftests: Replace assert() with TEST_ASSERT_EQ()Pratik R. Sampat
For SEV tests, assert() failures on VM type or fd do not provide sufficient error reporting. Replace assert() with TEST_ASSERT_EQ() to obtain more detailed information on the assertion condition failure, including the call stack. Signed-off-by: Pratik R. Sampat <prsampat@amd.com> Link: https://lore.kernel.org/r/20250305230000.231025-6-prsampat@amd.com Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-05-02KVM: selftests: Add SMT control state helperPratik R. Sampat
Move the SMT control check out of the hyperv_cpuid selftest so that it is generally accessible all KVM selftests. Split the functionality into a helper that populates a buffer with SMT control value which other helpers can use to ascertain if SMT state is available and active. Signed-off-by: Pratik R. Sampat <prsampat@amd.com> Link: https://lore.kernel.org/r/20250305230000.231025-5-prsampat@amd.com [sean: prepend is_ to the helpers] Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-05-02KVM: selftests: Add vmgexit helperPratik R. Sampat
Abstract rep vmmcall coded into the vmgexit helper for the sev library. No functional change intended. Signed-off-by: Pratik R. Sampat <prsampat@amd.com> Reviewed-by: Pankaj Gupta <pankaj.gupta@amd.com> Link: https://lore.kernel.org/r/20250305230000.231025-4-prsampat@amd.com Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-05-02KVM: selftests: SEV-SNP test for KVM_SEV_INIT2Pratik R. Sampat
Add the X86_FEATURE_SEV_SNP CPU feature to the architectural definition for the SEV-SNP VM type to exercise the KVM_SEV_INIT2 call. Ensure that the SNP test is skipped in scenarios where CPUID supports it but KVM does not, preventing reporting of failure in such cases. Reviewed-by: Nikunj A Dadhania <nikunj@amd.com> Signed-off-by: Pratik R. Sampat <prsampat@amd.com> Link: https://lore.kernel.org/r/20250305230000.231025-3-prsampat@amd.com [sean: use the same pattern as SEV and SEV-ES] Signed-off-by: Sean Christopherson <seanjc@google.com>
2025-05-02selftests/bpf: Add tests for bucket resume logic in UDP socket iteratorsJordan Rife
Introduce a set of tests that exercise various bucket resume scenarios: * remove_seen resumes iteration after removing a socket from the bucket that we've already processed. Before, with the offset-based approach, this test would have skipped an unseen socket after resuming iteration. With the cookie-based approach, we now see all sockets exactly once. * remove_unseen exercises the condition where the next socket that we would have seen is removed from the bucket before we resume iteration. This tests the scenario where we need to scan past the first cookie in our remembered cookies list to find the socket from which to resume iteration. * remove_all exercises the condition where all sockets we remembered were removed from the bucket to make sure iteration terminates and returns no more results. * add_some exercises the condition where a few, but not enough to trigger a realloc, sockets are added to the head of the current bucket between reads. Before, with the offset-based approach, this test would have repeated sockets we've already seen. With the cookie-based approach, we now see all sockets exactly once. * force_realloc exercises the condition that we need to realloc the batch on a subsequent read, since more sockets than can be held in the current batch array were added to the current bucket. This exercies the logic inside bpf_iter_udp_realloc_batch that copies cookies into the new batch to make sure nothing is skipped or repeated. Signed-off-by: Jordan Rife <jordan@jrife.io> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2025-05-02selftests/bpf: Return socket cookies from sock_iter_batch progsJordan Rife
Extend the iter_udp_soreuse and iter_tcp_soreuse programs to write the cookie of the current socket, so that we can track the identity of the sockets that the iterator has seen so far. Update the existing do_test function to account for this change to the iterator program output. At the same time, teach both programs to work with AF_INET as well. Signed-off-by: Jordan Rife <jordan@jrife.io> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2025-05-02Merge tag 'block-6.15-20250502' of git://git.kernel.dk/linuxLinus Torvalds
Pull block fixes from Jens Axboe: - NVMe pull request via Christoph: - fix queue unquiesce check on PCI slot_reset (Keith Busch) - fix premature queue removal and I/O failover in nvme-tcp (Michael Liang) - don't restore null sk_state_change (Alistair Francis) - select CONFIG_TLS where needed (Alistair Francis) - always free derived key data (Hannes Reinecke) - more quirks (Wentao Guan) - ublk zero copy fix - ublk selftest fix for UBLK_F_NEED_GET_DATA * tag 'block-6.15-20250502' of git://git.kernel.dk/linux: nvmet-auth: always free derived key data nvmet-tcp: don't restore null sk_state_change nvmet-tcp: select CONFIG_TLS from CONFIG_NVME_TARGET_TCP_TLS nvme-tcp: select CONFIG_TLS from CONFIG_NVME_TCP_TLS nvme-tcp: fix premature queue removal and I/O failover nvme-pci: add quirks for WDC Blue SN550 15b7:5009 nvme-pci: add quirks for device 126f:1001 nvme-pci: fix queue unquiesce check on slot_reset ublk: remove the check of ublk_need_req_ref() from __ublk_check_and_get_req ublk: enhance check for register/unregister io buffer command ublk: decouple zero copy from user copy selftests: ublk: fix UBLK_F_NEED_GET_DATA
2025-05-02selftests: coredump: Raise timeout to 2 minutesNam Cao
The test's runtime (nearly 20s) is dangerously close to the limit (30s) on qemu-system-riscv64: $ time ./stackdump_test > /dev/null real 0m19.210s user 0m0.077s sys 0m0.359s There could be machines slower than qemu-system-riscv64. Therefore raise the test timeout to 2 minutes to be safe. Fixes: 15858da53542 ("selftests: coredump: Add stackdump test") Signed-off-by: Nam Cao <namcao@linutronix.de> Link: https://lore.kernel.org/dd636084d55e7828782728d087fa2298dcab1c8b.1744383419.git.namcao@linutronix.de Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-05-02selftests: coredump: Fix test failure for slow machinesNam Cao
The test waits for coredump to finish by busy-waiting for the stack_values file to be created. The maximum wait time is 10 seconds. This doesn't work for slow machine (qemu-system-riscv64), because coredump takes longer. Fix it by waiting for the crashing child process to finish first. Fixes: 15858da53542 ("selftests: coredump: Add stackdump test") Signed-off-by: Nam Cao <namcao@linutronix.de> Link: https://lore.kernel.org/ee657f3fc8e19657cf7aaa366552d6347728f371.1744383419.git.namcao@linutronix.de Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-05-02selftests: coredump: Properly initialize pointerNam Cao
The buffer pointer "line" is not initialized. This pointer is passed to getline(). It can still work if the stack is zero-initialized, because getline() can work with a NULL pointer as buffer. But this is obviously broken. This bug shows up while running the test on a riscv64 machine. Fix it by properly initializing the pointer. Fixes: 15858da53542 ("selftests: coredump: Add stackdump test") Signed-off-by: Nam Cao <namcao@linutronix.de> Link: https://lore.kernel.org/4fb9b6fb3e0040481bacc258c44b4aab5c4df35d.1744383419.git.namcao@linutronix.de Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-05-01selftests: drv-net: rss_input_xfrm: Check test prerequisites before runningGal Pressman
Ensure the following prerequisites before executing the test: 1. 'socat' is installed on the remote host. 2. Python version supports socket.SO_INCOMING_CPU (available since v3.11). Skip the test if either prerequisite is not met. Reviewed-by: Nimrod Oren <noren@nvidia.com> Signed-off-by: Gal Pressman <gal@nvidia.com> Link: https://patch.msgid.link/20250430054801.750646-1-gal@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-01Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-6.15-rc5). No conflicts or adjacent changes. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-01selftests/bpf: Add btf dedup test covering module BTF dedupAlan Maguire
Recently issues were observed with module BTF deduplication failures [1]. Add a dedup selftest that ensures that core kernel types are referenced from split BTF as base BTF types. To do this use bpf_testmod functions which utilize core kernel types, specifically ssize_t bpf_testmod_test_write(struct file *file, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t len); __bpf_kfunc struct sock *bpf_kfunc_call_test3(struct sock *sk); __bpf_kfunc void bpf_kfunc_call_test_pass_ctx(struct __sk_buff *skb); For each of these ensure that the types they reference - struct file, struct kobject, struct bin_attr etc - are in base BTF. Note that because bpf_testmod.ko is built with distilled base BTF the associated reference types - i.e. the PTR that points at a "struct file" - will be in split BTF. As a result the test resolves typedef and pointer references and verifies the pointed-at or typedef'ed type is in base BTF. Because we use BTF from /sys/kernel/btf/bpf_testmod relocation has occurred for the referenced types and they will be base - not distilled base - types. For large-scale dedup issues, we see such types appear in split BTF and as a result this test fails. Hence it is proposed as a test which will fail when large-scale dedup issues have occurred. [1] https://lore.kernel.org/dwarves/CAADnVQL+-LiJGXwxD3jEUrOonO-fX0SZC8496dVzUXvfkB7gYQ@mail.gmail.com/ Signed-off-by: Alan Maguire <alan.maguire@oracle.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/bpf/20250430134249.2451066-1-alan.maguire@oracle.com
2025-05-01selftests/bpf: xdp_metadata: Check XDP_REDIRCT support for dev-bound progsLorenzo Bianconi
Improve xdp_metadata bpf selftest in order to check it is possible for a XDP dev-bound program to perform XDP_REDIRECT into a DEVMAP but it is still not allowed to attach a XDP dev-bound program to a DEVMAP entry. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Acked-by: Stanislav Fomichev <sdf@fomichev.me>
2025-05-01Merge tag 'net-6.15-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Happy May Day. Things have calmed down on our end (knock on wood), no outstanding investigations. Including fixes from Bluetooth and WiFi. Current release - fix to a fix: - igc: fix lock order in igc_ptp_reset Current release - new code bugs: - Revert "wifi: iwlwifi: make no_160 more generic", fixes regression to Killer line of devices reported by a number of people - Revert "wifi: iwlwifi: add support for BE213", initial FW is too buggy - number of fixes for mld, the new Intel WiFi subdriver Previous releases - regressions: - wifi: mac80211: restore monitor for outgoing frames - drv: vmxnet3: fix malformed packet sizing in vmxnet3_process_xdp - eth: bnxt_en: fix timestamping FIFO getting out of sync on reset, delivering stale timestamps - use sock_gen_put() in the TCP fraglist GRO heuristic, don't assume every socket is a full socket Previous releases - always broken: - sched: adapt qdiscs for reentrant enqueue cases, fix list corruptions - xsk: fix race condition in AF_XDP generic RX path, shared UMEM can't be protected by a per-socket lock - eth: mtk-star-emac: fix spinlock recursion issues on rx/tx poll - btusb: avoid NULL pointer dereference in skb_dequeue() - dsa: felix: fix broken taprio gate states after clock jump" * tag 'net-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (83 commits) net: vertexcom: mse102x: Fix RX error handling net: vertexcom: mse102x: Add range check for CMD_RTS net: vertexcom: mse102x: Fix LEN_MASK net: vertexcom: mse102x: Fix possible stuck of SPI interrupt net: hns3: defer calling ptp_clock_register() net: hns3: fixed debugfs tm_qset size net: hns3: fix an interrupt residual problem net: hns3: store rx VLAN tag offload state for VF octeon_ep: Fix host hang issue during device reboot net: fec: ERR007885 Workaround for conventional TX net: lan743x: Fix memleak issue when GSO enabled ptp: ocp: Fix NULL dereference in Adva board SMA sysfs operations net: use sock_gen_put() when sk_state is TCP_TIME_WAIT bnxt_en: fix module unload sequence bnxt_en: Fix ethtool -d byte order for 32-bit values bnxt_en: Fix out-of-bound memcpy() during ethtool -w bnxt_en: Fix coredump logic to free allocated buffer bnxt_en: delay pci_alloc_irq_vectors() in the AER path bnxt_en: call pci_alloc_irq_vectors() after bnxt_reserve_rings() bnxt_en: Add missing skb_mark_for_recycle() in bnxt_rx_vlan() ...
2025-04-30selftests/seccomp: fix syscall_restart test for arm compatNeill Kapron
The inconsistencies in the systcall ABI between arm and arm-compat can can cause a failure in the syscall_restart test due to the logic attempting to work around the differences. The 'machine' field for an ARM64 device running in compat mode can report 'armv8l' or 'armv8b' which matches with the string 'arm' when only examining the first three characters of the string. This change adds additional validation to the workaround logic to make sure we only take the arm path when running natively, not in arm-compat. Fixes: 256d0afb11d6 ("selftests/seccomp: build and pass on arm64") Signed-off-by: Neill Kapron <nkapron@google.com> Link: https://lore.kernel.org/r/20250427094103.3488304-2-nkapron@google.com Signed-off-by: Kees Cook <kees@kernel.org>
generated by cgit (git 2.34.1) at 2025-09-23 17:31:33 +0000