From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- scripts/coccicheck | 281 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 281 insertions(+) create mode 100755 scripts/coccicheck (limited to 'scripts/coccicheck') diff --git a/scripts/coccicheck b/scripts/coccicheck new file mode 100755 index 000000000..2956fce8f --- /dev/null +++ b/scripts/coccicheck @@ -0,0 +1,281 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Linux kernel coccicheck +# +# Read Documentation/dev-tools/coccinelle.rst +# +# This script requires at least spatch +# version 1.0.0-rc11. + +DIR="$(dirname $(readlink -f $0))/.." +SPATCH="`which ${SPATCH:=spatch}`" + +if [ ! -x "$SPATCH" ]; then + echo 'spatch is part of the Coccinelle project and is available at http://coccinelle.lip6.fr/' + exit 1 +fi + +SPATCH_VERSION=$($SPATCH --version | head -1 | awk '{print $3}') + +USE_JOBS="no" +$SPATCH --help | grep "\-\-jobs" > /dev/null && USE_JOBS="yes" + +# The verbosity may be set by the environmental parameter V= +# as for example with 'make V=1 coccicheck' + +if [ -n "$V" -a "$V" != "0" ]; then + VERBOSE="$V" +else + VERBOSE=0 +fi + +FLAGS="--very-quiet" + +# You can use SPFLAGS to append extra arguments to coccicheck or override any +# heuristics done in this file as Coccinelle accepts the last options when +# options conflict. +# +# A good example for use of SPFLAGS is if you want to debug your cocci script, +# you can for instance use the following: +# +# $ export COCCI=scripts/coccinelle/misc/irqf_oneshot.cocci +# $ make coccicheck MODE=report DEBUG_FILE="all.err" SPFLAGS="--profile --show-trying" M=./drivers/mfd/arizona-irq.c +# +# "--show-trying" should show you what rule is being processed as it goes to +# stdout, you do not need a debug file for that. The profile output will be +# be sent to stdout, if you provide a DEBUG_FILE the profiling data can be +# inspected there. +# +# --profile will not output if --very-quiet is used, so avoid it. +echo $SPFLAGS | grep -E -e "--profile|--show-trying" 2>&1 > /dev/null +if [ $? -eq 0 ]; then + FLAGS="--quiet" +fi + +# spatch only allows include directories with the syntax "-I include" +# while gcc also allows "-Iinclude" and "-include include" +COCCIINCLUDE=${LINUXINCLUDE//-I/-I } +COCCIINCLUDE=${COCCIINCLUDE// -include/ --include} + +if [ "$C" = "1" -o "$C" = "2" ]; then + ONLINE=1 + + if [[ $# -le 0 ]]; then + echo '' + echo 'Specifying both the variable "C" and rule "coccicheck" in the make +command results in a shift count error.' + echo '' + echo 'Try specifying "scripts/coccicheck" as a value for the CHECK variable instead.' + echo '' + echo 'Example: make C=2 CHECK=scripts/coccicheck drivers/net/ethernet/ethoc.o' + echo '' + exit 1 + fi + + # Take only the last argument, which is the C file to test + shift $(( $# - 1 )) + OPTIONS="$COCCIINCLUDE $1" + + # No need to parallelize Coccinelle since this mode takes one input file. + NPROC=1 +else + ONLINE=0 + if [ "$KBUILD_EXTMOD" = "" ] ; then + OPTIONS="--dir $srctree $COCCIINCLUDE" + else + OPTIONS="--dir $KBUILD_EXTMOD $COCCIINCLUDE" + fi + + # Use only one thread per core by default if hyperthreading is enabled + THREADS_PER_CORE=$(LANG=C lscpu | grep "Thread(s) per core: " | tr -cd "[:digit:]") + if [ -z "$J" ]; then + NPROC=$(getconf _NPROCESSORS_ONLN) + if [ $THREADS_PER_CORE -gt 1 -a $NPROC -gt 4 ] ; then + NPROC=$((NPROC/2)) + fi + else + NPROC="$J" + fi +fi + +if [ "$KBUILD_EXTMOD" != "" ] ; then + OPTIONS="--patch $srctree $OPTIONS" +fi + +# You can override by using SPFLAGS +if [ "$USE_JOBS" = "no" ]; then + trap kill_running SIGTERM SIGINT + declare -a SPATCH_PID +elif [ "$NPROC" != "1" ]; then + # Using 0 should work as well, refer to _SC_NPROCESSORS_ONLN use on + # https://github.com/rdicosmo/parmap/blob/master/setcore_stubs.c + OPTIONS="$OPTIONS --jobs $NPROC --chunksize 1" +fi + +if [ "$MODE" = "" ] ; then + if [ "$ONLINE" = "0" ] ; then + echo 'You have not explicitly specified the mode to use. Using default "report" mode.' + echo 'Available modes are the following: patch, report, context, org, chain' + echo 'You can specify the mode with "make coccicheck MODE="' + echo 'Note however that some modes are not implemented by some semantic patches.' + fi + MODE="report" +fi + +if [ "$MODE" = "chain" ] ; then + if [ "$ONLINE" = "0" ] ; then + echo 'You have selected the "chain" mode.' + echo 'All available modes will be tried (in that order): patch, report, context, org' + fi +elif [ "$MODE" = "report" -o "$MODE" = "org" ] ; then + FLAGS="--no-show-diff $FLAGS" +fi + +if [ "$ONLINE" = "0" ] ; then + echo '' + echo 'Please check for false positives in the output before submitting a patch.' + echo 'When using "patch" mode, carefully review the patch before submitting it.' + echo '' +fi + +run_cmd_parmap() { + if [ $VERBOSE -ne 0 ] ; then + echo "Running ($NPROC in parallel): $@" + fi + if [ "$DEBUG_FILE" != "/dev/null" -a "$DEBUG_FILE" != "" ]; then + echo $@>>$DEBUG_FILE + $@ 2>>$DEBUG_FILE + else + echo $@ + $@ 2>&1 + fi + + err=$? + if [[ $err -ne 0 ]]; then + echo "coccicheck failed" + exit $err + fi +} + +run_cmd_old() { + local i + if [ $VERBOSE -ne 0 ] ; then + echo "Running ($NPROC in parallel): $@" + fi + for i in $(seq 0 $(( NPROC - 1)) ); do + eval "$@ --max $NPROC --index $i &" + SPATCH_PID[$i]=$! + if [ $VERBOSE -eq 2 ] ; then + echo "${SPATCH_PID[$i]} running" + fi + done + wait +} + +run_cmd() { + if [ "$USE_JOBS" = "yes" ]; then + run_cmd_parmap $@ + else + run_cmd_old $@ + fi +} + +kill_running() { + for i in $(seq 0 $(( NPROC - 1 )) ); do + if [ $VERBOSE -eq 2 ] ; then + echo "Killing ${SPATCH_PID[$i]}" + fi + kill ${SPATCH_PID[$i]} 2>/dev/null + done +} + +# You can override heuristics with SPFLAGS, these must always go last +OPTIONS="$OPTIONS $SPFLAGS" + +coccinelle () { + COCCI="$1" + + OPT=`grep "Options:" $COCCI | cut -d':' -f2` + REQ=`grep "Requires:" $COCCI | cut -d':' -f2 | sed "s| ||"` + if [ -n "$REQ" ] && ! { echo "$REQ"; echo "$SPATCH_VERSION"; } | sort -CV ; then + echo "Skipping coccinelle SmPL patch: $COCCI" + echo "You have coccinelle: $SPATCH_VERSION" + echo "This SmPL patch requires: $REQ" + return + fi + +# The option '--parse-cocci' can be used to syntactically check the SmPL files. +# +# $SPATCH -D $MODE $FLAGS -parse_cocci $COCCI $OPT > /dev/null + + if [ $VERBOSE -ne 0 -a $ONLINE -eq 0 ] ; then + + FILE=${COCCI#$srctree/} + + echo "Processing `basename $COCCI`" + echo "with option(s) \"$OPT\"" + echo '' + echo 'Message example to submit a patch:' + + sed -ne 's|^///||p' $COCCI + + if [ "$MODE" = "patch" ] ; then + echo ' The semantic patch that makes this change is available' + elif [ "$MODE" = "report" ] ; then + echo ' The semantic patch that makes this report is available' + elif [ "$MODE" = "context" ] ; then + echo ' The semantic patch that spots this code is available' + elif [ "$MODE" = "org" ] ; then + echo ' The semantic patch that makes this Org report is available' + else + echo ' The semantic patch that makes this output is available' + fi + echo " in $FILE." + echo '' + echo ' More information about semantic patching is available at' + echo ' http://coccinelle.lip6.fr/' + echo '' + + if [ "`sed -ne 's|^//#||p' $COCCI`" ] ; then + echo 'Semantic patch information:' + sed -ne 's|^//#||p' $COCCI + echo '' + fi + fi + + if [ "$MODE" = "chain" ] ; then + run_cmd $SPATCH -D patch \ + $FLAGS --cocci-file $COCCI $OPT $OPTIONS || \ + run_cmd $SPATCH -D report \ + $FLAGS --cocci-file $COCCI $OPT $OPTIONS --no-show-diff || \ + run_cmd $SPATCH -D context \ + $FLAGS --cocci-file $COCCI $OPT $OPTIONS || \ + run_cmd $SPATCH -D org \ + $FLAGS --cocci-file $COCCI $OPT $OPTIONS --no-show-diff || exit 1 + elif [ "$MODE" = "rep+ctxt" ] ; then + run_cmd $SPATCH -D report \ + $FLAGS --cocci-file $COCCI $OPT $OPTIONS --no-show-diff && \ + run_cmd $SPATCH -D context \ + $FLAGS --cocci-file $COCCI $OPT $OPTIONS || exit 1 + else + run_cmd $SPATCH -D $MODE $FLAGS --cocci-file $COCCI $OPT $OPTIONS || exit 1 + fi + +} + +if [ "$DEBUG_FILE" != "/dev/null" -a "$DEBUG_FILE" != "" ]; then + if [ -f $DEBUG_FILE ]; then + echo "Debug file $DEBUG_FILE exists, bailing" + exit + fi +else + DEBUG_FILE="/dev/null" +fi + +if [ "$COCCI" = "" ] ; then + for f in `find $srctree/scripts/coccinelle/ -name '*.cocci' -type f | sort`; do + coccinelle $f + done +else + coccinelle $COCCI +fi -- cgit v1.2.3