user/sven/linux.git/include/uapi, branch v5.16.5

tty: Partially revert the removal of the Cyclades public API

2022-02-01T16:29:06Z

commit f23653fe64479d96910bfda2b700b1af17c991ac upstream. Fix a user API regression introduced with commit f76edd8f7ce0 ("tty: cyclades, remove this orphan"), which removed a part of the API and caused compilation errors for user programs using said part, such as GCC 9 in its libsanitizer component[1]: .../libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc:160:10: fatal error: linux/cyclades.h: No such file or directory 160 | #include | ^~~~~~~~~~~~~~~~~~ compilation terminated. make[4]: *** [Makefile:664: sanitizer_platform_limits_posix.lo] Error 1 As the absolute minimum required bring `struct cyclades_monitor' and ioctl numbers back then so as to make the library build again. Add a preprocessor warning as to the obsolescence of the features provided. References: [1] GCC PR sanitizer/100379, "cyclades.h is removed from linux kernel header files", Fixes: f76edd8f7ce0 ("tty: cyclades, remove this orphan") Cc: stable@vger.kernel.org # v5.13+ Reviewed-by: Christoph Hellwig Signed-off-by: Maciej W. Rozycki Link: https://lore.kernel.org/r/alpine.DEB.2.20.2201260733430.11348@tpp.orcam.me.uk Signed-off-by: Greg Kroah-Hartman

habanalabs: change wait for interrupt timeout to 64 bit

2022-01-27T11:02:36Z

[ Upstream commit 48f31169830f589e4c7ac475ccc7414951ded3f0 ] In order to increase maximum wait-for-interrupt timeout, change it to 64 bit variable. This wait is used only by newer ASICs, so no problem in changing this interface at this time. Signed-off-by: Dani Liberman Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay Signed-off-by: Sasha Levin

xfrm: rate limit SA mapping change message to user space

2022-01-27T11:02:28Z

[ Upstream commit 4e484b3e969b52effd95c17f7a86f39208b2ccf4 ] Kernel generates mapping change message, XFRM_MSG_MAPPING, when a source port chage is detected on a input state with UDP encapsulation set. Kernel generates a message for each IPsec packet with new source port. For a high speed flow per packet mapping change message can be excessive, and can overload the user space listener. Introduce rate limiting for XFRM_MSG_MAPPING message to the user space. The rate limiting is configurable via netlink, when adding a new SA or updating it. Use the new attribute XFRMA_MTIMER_THRESH in seconds. v1->v2 change: update xfrm_sa_len() v2->v3 changes: use u32 insted unsigned long to reduce size of struct xfrm_state fix xfrm_ompat size Reported-by: kernel test robot accept XFRM_MSG_MAPPING only when XFRMA_ENCAP is present Co-developed-by: Thomas Egerer Signed-off-by: Thomas Egerer Signed-off-by: Antony Antony Signed-off-by: Steffen Klassert Signed-off-by: Sasha Levin

bpf: Change value of MAX_TAIL_CALL_CNT from 32 to 33

2022-01-27T11:02:14Z

[ Upstream commit ebf7f6f0a6cdcc17a3da52b81e4b3a98c4005028 ] In the current code, the actual max tail call count is 33 which is greater than MAX_TAIL_CALL_CNT (defined as 32). The actual limit is not consistent with the meaning of MAX_TAIL_CALL_CNT and thus confusing at first glance. We can see the historical evolution from commit 04fd61ab36ec ("bpf: allow bpf programs to tail-call other bpf programs") and commit f9dabe016b63 ("bpf: Undo off-by-one in interpreter tail call count limit"). In order to avoid changing existing behavior, the actual limit is 33 now, this is reasonable. After commit 874be05f525e ("bpf, tests: Add tail call test suite"), we can see there exists failed testcase. On all archs when CONFIG_BPF_JIT_ALWAYS_ON is not set: # echo 0 > /proc/sys/net/core/bpf_jit_enable # modprobe test_bpf # dmesg | grep -w FAIL Tail call error path, max count reached jited:0 ret 34 != 33 FAIL On some archs: # echo 1 > /proc/sys/net/core/bpf_jit_enable # modprobe test_bpf # dmesg | grep -w FAIL Tail call error path, max count reached jited:1 ret 34 != 33 FAIL Although the above failed testcase has been fixed in commit 18935a72eb25 ("bpf/tests: Fix error in tail call limit tests"), it would still be good to change the value of MAX_TAIL_CALL_CNT from 32 to 33 to make the code more readable. The 32-bit x86 JIT was using a limit of 32, just fix the wrong comments and limit to 33 tail calls as the constant MAX_TAIL_CALL_CNT updated. For the mips64 JIT, use "ori" instead of "addiu" as suggested by Johan Almbladh. For the riscv JIT, use RV_REG_TCC directly to save one register move as suggested by Björn Töpel. For the other implementations, no function changes, it does not change the current limit 33, the new value of MAX_TAIL_CALL_CNT can reflect the actual max tail call count, the related tail call testcases in test_bpf module and selftests can work well for the interpreter and the JIT. Here are the test results on x86_64: # uname -m x86_64 # echo 0 > /proc/sys/net/core/bpf_jit_enable # modprobe test_bpf test_suite=test_tail_calls # dmesg | tail -1 test_bpf: test_tail_calls: Summary: 8 PASSED, 0 FAILED, [0/8 JIT'ed] # rmmod test_bpf # echo 1 > /proc/sys/net/core/bpf_jit_enable # modprobe test_bpf test_suite=test_tail_calls # dmesg | tail -1 test_bpf: test_tail_calls: Summary: 8 PASSED, 0 FAILED, [8/8 JIT'ed] # rmmod test_bpf # ./test_progs -t tailcalls #142 tailcalls:OK Summary: 1/11 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: Tiezhu Yang Signed-off-by: Daniel Borkmann Tested-by: Johan Almbladh Tested-by: Ilya Leoshkevich Acked-by: Björn Töpel Acked-by: Johan Almbladh Acked-by: Ilya Leoshkevich Link: https://lore.kernel.org/bpf/1636075800-3264-1-git-send-email-yangtiezhu@loongson.cn Signed-off-by: Sasha Levin

Merge tag 'net-5.16-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2021-12-30T19:12:12Z

Pull networking fixes from Jakub Kicinski: "Including fixes from.. Santa? No regressions on our radar at this point. The igc problem fixed here was the last one I was tracking but it was broken in previous releases, anyway. Mostly driver fixes and a couple of largish SMC fixes. Current release - regressions: - xsk: initialise xskb free_list_node, fixup for a -rc7 fix Current release - new code bugs: - mlx5: handful of minor fixes: - use first online CPU instead of hard coded CPU - fix some error handling paths in 'mlx5e_tc_add_fdb_flow()' - fix skb memory leak when TC classifier action offloads are disabled - fix memory leak with rules with internal OvS port Previous releases - regressions: - igc: do not enable crosstimestamping for i225-V models Previous releases - always broken: - udp: use datalen to cap ipv6 udp max gso segments - fix use-after-free in tw_timer_handler due to early free of stats - smc: fix kernel panic caused by race of smc_sock - smc: don't send CDC/LLC message if link not ready, avoid timeouts - sctp: use call_rcu to free endpoint, avoid UAF in sock diag - bridge: mcast: add and enforce query interval minimum - usb: pegasus: do not drop long Ethernet frames - mlx5e: fix ICOSQ recovery flow for XSK - nfc: uapi: use kernel size_t to fix user-space builds" * tag 'net-5.16-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (47 commits) fsl/fman: Fix missing put_device() call in fman_port_probe selftests: net: using ping6 for IPv6 in udpgro_fwd.sh Documentation: fix outdated interpretation of ip_no_pmtu_disc net/ncsi: check for error return from call to nla_put_u32 net: bridge: mcast: fix br_multicast_ctx_vlan_global_disabled helper net: fix use-after-free in tw_timer_handler selftests: net: Fix a typo in udpgro_fwd.sh selftests/net: udpgso_bench_tx: fix dst ip argument net: bridge: mcast: add and enforce startup query interval minimum net: bridge: mcast: add and enforce query interval minimum ipv6: raw: check passed optlen before reading xsk: Initialise xskb free_list_node net/mlx5e: Fix wrong features assignment in case of error net/mlx5e: TC, Fix memory leak with rules with internal port ionic: Initialize the 'lif->dbid_inuse' bitmap igc: Fix TX timestamp support for non-MSI-X platforms igc: Do not enable crosstimestamping for i225-V models net/smc: fix kernel panic caused by race of smc_sock net/smc: don't send CDC/LLC message if link not ready NFC: st21nfca: Fix memory leak in device probe and remove ...

nfc: uapi: use kernel size_t to fix user-space builds

2021-12-27T14:58:37Z

Fix user-space builds if it includes /usr/include/linux/nfc.h before some of other headers: /usr/include/linux/nfc.h:281:9: error: unknown type name ‘size_t’ 281 | size_t service_name_len; | ^~~~~~ Fixes: d646960f7986 ("NFC: Initial LLCP support") Cc: Signed-off-by: Krzysztof Kozlowski Signed-off-by: David S. Miller

uapi: fix linux/nfc.h userspace compilation errors

2021-12-27T14:58:03Z

Replace sa_family_t with __kernel_sa_family_t to fix the following linux/nfc.h userspace compilation errors: /usr/include/linux/nfc.h:266:2: error: unknown type name 'sa_family_t' sa_family_t sa_family; /usr/include/linux/nfc.h:274:2: error: unknown type name 'sa_family_t' sa_family_t sa_family; Fixes: 23b7869c0fd0 ("NFC: add the NFC socket raw protocol") Fixes: d646960f7986 ("NFC: Initial LLCP support") Cc: Signed-off-by: Dmitry V. Levin Reviewed-by: Krzysztof Kozlowski Signed-off-by: David S. Miller

uapi: Fix undefined __always_inline on non-glibc systems

2021-12-21T23:09:46Z

This macro is defined by glibc itself, which makes the issue go unnoticed on those systems. On non-glibc systems it causes build failures on several utilities and libraries, like bpftool and objtool. Fixes: 1d509f2a6ebc ("x86/insn: Support big endian cross-compiles") Fixes: 2d7ce0e8a704 ("tools/virtio: more stubs") Fixes: 3fb321fde22d ("selftests/net: ipv6 flowlabel") Fixes: 50b3ed57dee9 ("selftests/bpf: test bpf flow dissection") Fixes: 9cacf81f8161 ("bpf: Remove extra lock_sock for TCP_ZEROCOPY_RECEIVE") Fixes: a4b2061242ec ("tools include uapi: Grab a copy of linux/in.h") Fixes: b12d6ec09730 ("bpf: btf: add btf print functionality") Fixes: c0dd967818a2 ("tools, include: Grab a copy of linux/erspan.h") Fixes: c4b6014e8bb0 ("tools: Add copy of perf_event.h to tools/include/linux/") Signed-off-by: Ismael Luceno Acked-by: Masami Hiramatsu Signed-off-by: Josh Poimboeuf Link: https://lore.kernel.org/r/20211115134647.1921-1-ismael@iodev.co.uk Cc: Martin Schwidefsky Cc: Vasily Gorbik

Merge tag 'net-5.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2021-12-16T23:02:14Z

Pull networking fixes from Jakub Kicinski: "Networking fixes, including fixes from mac80211, wifi, bpf. Relatively large batches of fixes from BPF and the WiFi stack, calm in general networking. Current release - regressions: - dpaa2-eth: fix buffer overrun when reporting ethtool statistics Current release - new code bugs: - bpf: fix incorrect state pruning for <8B spill/fill - iavf: - add missing unlocks in iavf_watchdog_task() - do not override the adapter state in the watchdog task (again) - mlxsw: spectrum_router: consolidate MAC profiles when possible Previous releases - regressions: - mac80211 fixes: - rate control, avoid driver crash for retransmitted frames - regression in SSN handling of addba tx - a memory leak where sta_info is not freed - marking TX-during-stop for TX in in_reconfig, prevent stall - cfg80211: acquire wiphy mutex on regulatory work - wifi drivers: fix build regressions and LED config dependency - virtio_net: fix rx_drops stat for small pkts - dsa: mv88e6xxx: unforce speed & duplex in mac_link_down() Previous releases - always broken: - bpf fixes: - kernel address leakage in atomic fetch - kernel address leakage in atomic cmpxchg's r0 aux reg - signed bounds propagation after mov32 - extable fixup offset - extable address check - mac80211: - fix the size used for building probe request - send ADDBA requests using the tid/queue of the aggregation session - agg-tx: don't schedule_and_wake_txq() under sta->lock, avoid deadlocks - validate extended element ID is present - mptcp: - never allow the PM to close a listener subflow (null-defer) - clear 'kern' flag from fallback sockets, prevent crash - fix deadlock in __mptcp_push_pending() - inet_diag: fix kernel-infoleak for UDP sockets - xsk: do not sleep in poll() when need_wakeup set - smc: avoid very long waits in smc_release() - sch_ets: don't remove idle classes from the round-robin list - netdevsim: - zero-initialize memory for bpf map's value, prevent info leak - don't let user space overwrite read only (max) ethtool parms - ixgbe: set X550 MDIO speed before talking to PHY - stmmac: - fix null-deref in flower deletion w/ VLAN prio Rx steering - dwmac-rk: fix oob read in rk_gmac_setup - ice: time stamping fixes - systemport: add global locking for descriptor life cycle" * tag 'net-5.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (89 commits) bpf, selftests: Fix racing issue in btf_skc_cls_ingress test selftest/bpf: Add a test that reads various addresses. bpf: Fix extable address check. bpf: Fix extable fixup offset. bpf, selftests: Add test case trying to taint map value pointer bpf: Make 32->64 bounds propagation slightly more robust bpf: Fix signed bounds propagation after mov32 sit: do not call ipip6_dev_free() from sit_init_net() net: systemport: Add global locking for descriptor lifecycle net/smc: Prevent smc_release() from long blocking net: Fix double 0x prefix print in SKB dump virtio_net: fix rx_drops stat for small pkts dsa: mv88e6xxx: fix debug print for SPEED_UNFORCED sfc_ef100: potential dereference of null pointer net: stmmac: dwmac-rk: fix oob read in rk_gmac_setup net: usb: lan78xx: add Allied Telesis AT29M2-AF net/packet: rx_owner_map depends on pg_vec netdevsim: Zero-initialize memory for new map's value in function nsim_bpf_map_alloc dpaa2-eth: fix ethtool statistics ixgbe: set X550 MDIO speed before talking to PHY ...

mptcp: add missing documented NL params

2021-12-15T02:49:40Z

'loc_id' and 'rem_id' are set in all events linked to subflows but those were missing in the events description in the comments. Fixes: b911c97c7dc7 ("mptcp: add netlink event support") Signed-off-by: Matthieu Baerts Signed-off-by: Mat Martineau Signed-off-by: Jakub Kicinski