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2023-12-15selftests/net: fix grep checking for fib_nexthop_multiprefixHangbin Liu1-2/+2
When running fib_nexthop_multiprefix test I saw all IPv6 test failed. e.g. ]# ./fib_nexthop_multiprefix.sh TEST: IPv4: host 0 to host 1, mtu 1300 [ OK ] TEST: IPv6: host 0 to host 1, mtu 1300 [FAIL] With -v it shows COMMAND: ip netns exec h0 /usr/sbin/ping6 -s 1350 -c5 -w5 2001:db8:101::1 PING 2001:db8:101::1(2001:db8:101::1) 1350 data bytes From 2001:db8:100::64 icmp_seq=1 Packet too big: mtu=1300 --- 2001:db8:101::1 ping statistics --- 1 packets transmitted, 0 received, +1 errors, 100% packet loss, time 0ms Route get 2001:db8:101::1 via 2001:db8:100::64 dev eth0 src 2001:db8:100::1 metric 1024 expires 599sec mtu 1300 pref medium Searching for: 2001:db8:101::1 from :: via 2001:db8:100::64 dev eth0 src 2001:db8:100::1 .* mtu 1300 The reason is when CONFIG_IPV6_SUBTREES is not enabled, rt6_fill_node() will not put RTA_SRC info. After fix: ]# ./fib_nexthop_multiprefix.sh TEST: IPv4: host 0 to host 1, mtu 1300 [ OK ] TEST: IPv6: host 0 to host 1, mtu 1300 [ OK ] Fixes: 735ab2f65dce ("selftests: Add test with multiple prefixes using single nexthop") Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Link: https://lore.kernel.org/r/20231213060856.4030084-7-liuhangbin@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-15selftests/net: convert fcnal-test.sh to run it in unique namespaceHangbin Liu2-18/+14
Here is the test result after conversion. There are some failures, but it also exists on my system without this patch. So it's not affectec by this patch and I will check the reason later. ]# time ./fcnal-test.sh /usr/bin/which: no nettest in (/root/.local/bin:/root/bin:/usr/share/Modules/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin) ########################################################################### IPv4 ping ########################################################################### ################################################################# No VRF SYSCTL: net.ipv4.raw_l3mdev_accept=0 TEST: ping out - ns-B IP [ OK ] TEST: ping out, device bind - ns-B IP [ OK ] TEST: ping out, address bind - ns-B IP [ OK ] ... ################################################################# SNAT on VRF TEST: IPv4 TCP connection over VRF with SNAT [ OK ] TEST: IPv6 TCP connection over VRF with SNAT [ OK ] Tests passed: 893 Tests failed: 21 real 52m48.178s user 0m34.158s sys 1m42.976s BTW, this test needs a really long time. So expand the timeout to 1h. Acked-by: David Ahern <dsahern@kernel.org> Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Link: https://lore.kernel.org/r/20231213060856.4030084-6-liuhangbin@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-15selftests/net: convert srv6_end_dt6_l3vpn_test.sh to run it in unique namespaceHangbin Liu1-25/+21
As the name \${rt-${rt}} may make reader confuse, convert the variable hs/rt in setup_rt/hs to hid, rid. Here is the test result after conversion. ]# ./srv6_end_dt6_l3vpn_test.sh ################################################################################ TEST SECTION: IPv6 routers connectivity test ################################################################################ TEST: Routers connectivity: rt-1 -> rt-2 [ OK ] TEST: Routers connectivity: rt-2 -> rt-1 [ OK ] ... TEST: Hosts isolation: hs-t200-4 -X-> hs-t100-2 [ OK ] Tests passed: 18 Tests failed: 0 Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Link: https://lore.kernel.org/r/20231213060856.4030084-5-liuhangbin@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-15selftests/net: convert srv6_end_dt4_l3vpn_test.sh to run it in unique namespaceHangbin Liu1-27/+21
As the name \${rt-${rt}} may make reader confuse, convert the variable hs/rt in setup_rt/hs to hid, rid. Here is the test result after conversion. ]# ./srv6_end_dt4_l3vpn_test.sh ################################################################################ TEST SECTION: IPv6 routers connectivity test ################################################################################ TEST: Routers connectivity: rt-1 -> rt-2 [ OK ] TEST: Routers connectivity: rt-2 -> rt-1 [ OK ] ... TEST: Hosts isolation: hs-t200-4 -X-> hs-t100-2 [ OK ] Tests passed: 18 Tests failed: 0 Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Link: https://lore.kernel.org/r/20231213060856.4030084-4-liuhangbin@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-15selftests/net: convert srv6_end_dt46_l3vpn_test.sh to run it in unique namespaceHangbin Liu1-27/+24
As the name \${rt-${rt}} may make reader confuse, convert the variable hs/rt in setup_rt/hs to hid, rid. Here is the test result after conversion. ]# ./srv6_end_dt46_l3vpn_test.sh ################################################################################ TEST SECTION: IPv6 routers connectivity test ################################################################################ TEST: Routers connectivity: rt-1 -> rt-2 [ OK ] TEST: Routers connectivity: rt-2 -> rt-1 [ OK ] ... TEST: IPv4 Hosts isolation: hs-t200-4 -X-> hs-t100-2 [ OK ] Tests passed: 34 Tests failed: 0 Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Link: https://lore.kernel.org/r/20231213060856.4030084-3-liuhangbin@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-15selftests/net: add variable NS_LIST for lib.shHangbin Liu1-0/+8
Add a global variable NS_LIST to store all the namespaces that setup_ns created, so the caller could call cleanup_all_ns() instead of remember all the netns names when using cleanup_ns(). Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Link: https://lore.kernel.org/r/20231213060856.4030084-2-liuhangbin@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-15page_pool: fix typos and punctuationRandy Dunlap1-6/+6
Correct spelling (s/and/any) and a run-on sentence. Spell out "multi". Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Jesper Dangaard Brouer <hawk@kernel.org> Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Link: https://lore.kernel.org/r/20231213043650.12672-1-rdunlap@infradead.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-15net: skbuff: fix spelling errorsRandy Dunlap1-3/+3
Correct spelling as reported by codespell. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://lore.kernel.org/r/20231213043511.10357-1-rdunlap@infradead.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-15Merge branch 'net-mdio-mdio-bcm-unimac-optimizations-and-clean-up'Jakub Kicinski1-13/+8
Justin Chen says: ==================== net: mdio: mdio-bcm-unimac: optimizations and clean up Clean up mdio poll to use read_poll_timeout() and reduce the potential poll time. ==================== Link: https://lore.kernel.org/r/20231213222744.2891184-1-justin.chen@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-15net: mdio: mdio-bcm-unimac: Use read_poll_timeoutJustin Chen1-14/+3
Simplify the code by using read_poll_timeout(). Signed-off-by: Justin Chen <justin.chen@broadcom.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/20231213222744.2891184-3-justin.chen@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-15net: mdio: mdio-bcm-unimac: Delay before first pollJustin Chen1-1/+7
With a clock interval of 400 nsec and a 64 bit transactions (32 bit preamble & 16 bit control & 16 bit data), it is reasonable to assume the mdio transaction will take 25.6 usec. Add a 30 usec delay before the first poll to reduce the chance of a 1000-2000 usec sleep. Reduce the timeout from 1000ms to 100ms as it is unlikely for the bus to take this long. Signed-off-by: Justin Chen <justin.chen@broadcom.com> Acked-by: Florian Fainelli <florian.fainelli@broadcom.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/20231213222744.2891184-2-justin.chen@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-15Merge branch 'tools-ynl-gen-fill-in-the-gaps-in-support-of-legacy-families'Jakub Kicinski3-41/+158
Jakub Kicinski says: ==================== tools: ynl-gen: fill in the gaps in support of legacy families Fill in the gaps in YNL C code gen so that we can generate user space code for all genetlink families for which we have specs. The two major changes we need are support for fixed headers and support for recursive nests. For fixed header support - place the struct for the fixed header directly in the request struct (and don't bother generating access helpers). The member of a fixed header can't be too complex, and also are by definition not optional so the user has to fill them in. The YNL core needs a bit of a tweak to understand that the attrs may now start at a fixed offset, which is not necessarily equal to sizeof(struct genlmsghdr). Dealing with nested sets is much harder. Previously we'd gen the nested structs as: struct outer { struct inner inner; }; If structs are recursive (e.g. inner contains outer again) we must break this chain and allocate one of the structs dynamically (store a pointer rather than full struct). ==================== Link: https://lore.kernel.org/r/20231213231432.2944749-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-15tools: ynl-gen: print prototypes for recursive stuffJakub Kicinski1-5/+39
We avoid printing forward declarations and prototypes for most types by sorting things topologically. But if structs nest we do need the forward declarations, there's no other way. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://lore.kernel.org/r/20231213231432.2944749-9-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-15tools: ynl-gen: store recursive nests by a pointerJakub Kicinski1-2/+14
To avoid infinite nesting store recursive structs by pointer. If recursive struct is placed in the op directly - the first instance can be stored by value. That makes the code much less of a pain for majority of practical uses. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://lore.kernel.org/r/20231213231432.2944749-8-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-15tools: ynl-gen: re-sort ignoring recursive nestsJakub Kicinski1-21/+31
We try to keep the structures and helpers "topologically sorted", to avoid forward declarations. When recursive nests are at play we need to sort twice, because structs which end up being marked as recursive will get a full set of forward declarations, so we should ignore them for the purpose of sorting. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://lore.kernel.org/r/20231213231432.2944749-7-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-15tools: ynl-gen: record information about recursive nestsJakub Kicinski1-2/+17
Track which nests are recursive. Non-recursive nesting gets rendered in C as directly nested structs. For recursive ones we need to put a pointer in, rather than full struct. Track this information, no change to generated code, yet. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://lore.kernel.org/r/20231213231432.2944749-6-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-15tools: ynl-gen: fill in implementations for TypeUnusedJakub Kicinski1-0/+9
Fill in more empty handlers for TypeUnused. When 'unused' attr gets specified in a nested set we have to cleanly skip it during code generation. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://lore.kernel.org/r/20231213231432.2944749-5-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-15tools: ynl-gen: support fixed headers in genetlinkJakub Kicinski3-8/+45
Support genetlink families using simple fixed headers. Assume fixed header is identical for all ops of the family for now. Fixed headers are added to the request and reply structs as a _hdr member, and copied to/from netlink messages appropriately. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://lore.kernel.org/r/20231213231432.2944749-4-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-15tools: ynl-gen: use enum user type for members and argsJakub Kicinski1-3/+2
Commit 30c902001534 ("tools: ynl-gen: use enum name from the spec") added pre-cooked user type for enums. Use it to fix ignoring enum-name provided in the spec. This changes a type in struct ethtool_tunnel_udp_entry but is generally inconsequential for current families. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://lore.kernel.org/r/20231213231432.2944749-3-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-15tools: ynl-gen: add missing request free helpers for dumpsJakub Kicinski1-0/+1
The code gen generates a prototype for dump request free in the header, but no implementation in the source. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://lore.kernel.org/r/20231213231432.2944749-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski388-2237/+4277
Cross-merge networking fixes after downstream PR. Conflicts: drivers/net/ethernet/intel/iavf/iavf_ethtool.c 3a0b5a2929fd ("iavf: Introduce new state machines for flow director") 95260816b489 ("iavf: use iavf_schedule_aq_request() helper") https://lore.kernel.org/all/84e12519-04dc-bd80-bc34-8cf50d7898ce@intel.com/ drivers/net/ethernet/broadcom/bnxt/bnxt.c c13e268c0768 ("bnxt_en: Fix HWTSTAMP_FILTER_ALL packet timestamp logic") c2f8063309da ("bnxt_en: Refactor RX VLAN acceleration logic.") a7445d69809f ("bnxt_en: Add support for new RX and TPA_START completion types for P7") 1c7fd6ee2fe4 ("bnxt_en: Rename some macros for the P5 chips") https://lore.kernel.org/all/20231211110022.27926ad9@canb.auug.org.au/ drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c bd6781c18cb5 ("bnxt_en: Fix wrong return value check in bnxt_close_nic()") 84793a499578 ("bnxt_en: Skip nic close/open when configuring tstamp filters") https://lore.kernel.org/all/20231214113041.3a0c003c@canb.auug.org.au/ drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c 3d7a3f2612d7 ("net/mlx5: Nack sync reset request when HotPlug is enabled") cecf44ea1a1f ("net/mlx5: Allow sync reset flow when BF MGT interface device is present") https://lore.kernel.org/all/20231211110328.76c925af@canb.auug.org.au/ No adjacent changes. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-15Merge tag 'net-6.7-rc6' of ↵Linus Torvalds62-582/+1150
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Current release - regressions: - tcp: fix tcp_disordered_ack() vs usec TS resolution Current release - new code bugs: - dpll: sanitize possible null pointer dereference in dpll_pin_parent_pin_set() - eth: octeon_ep: initialise control mbox tasks before using APIs Previous releases - regressions: - io_uring/af_unix: disable sending io_uring over sockets - eth: mlx5e: - TC, don't offload post action rule if not supported - fix possible deadlock on mlx5e_tx_timeout_work - eth: iavf: fix iavf_shutdown to call iavf_remove instead iavf_close - eth: bnxt_en: fix skb recycling logic in bnxt_deliver_skb() - eth: ena: fix DMA syncing in XDP path when SWIOTLB is on - eth: team: fix use-after-free when an option instance allocation fails Previous releases - always broken: - neighbour: don't let neigh_forced_gc() disable preemption for long - net: prevent mss overflow in skb_segment() - ipv6: support reporting otherwise unknown prefix flags in RTM_NEWPREFIX - tcp: remove acked SYN flag from packet in the transmit queue correctly - eth: octeontx2-af: - fix a use-after-free in rvu_nix_register_reporters - fix promisc mcam entry action - eth: dwmac-loongson: make sure MDIO is initialized before use - eth: atlantic: fix double free in ring reinit logic" * tag 'net-6.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (62 commits) net: atlantic: fix double free in ring reinit logic appletalk: Fix Use-After-Free in atalk_ioctl net: stmmac: Handle disabled MDIO busses from devicetree net: stmmac: dwmac-qcom-ethqos: Fix drops in 10M SGMII RX dpaa2-switch: do not ask for MDB, VLAN and FDB replay dpaa2-switch: fix size of the dma_unmap net: prevent mss overflow in skb_segment() vsock/virtio: Fix unsigned integer wrap around in virtio_transport_has_space() Revert "tcp: disable tcp_autocorking for socket when TCP_NODELAY flag is set" MIPS: dts: loongson: drop incorrect dwmac fallback compatible stmmac: dwmac-loongson: drop useless check for compatible fallback stmmac: dwmac-loongson: Make sure MDIO is initialized before use tcp: disable tcp_autocorking for socket when TCP_NODELAY flag is set dpll: sanitize possible null pointer dereference in dpll_pin_parent_pin_set() net: ena: Fix XDP redirection error net: ena: Fix DMA syncing in XDP path when SWIOTLB is on net: ena: Fix xdp drops handling due to multibuf packets net: ena: Destroy correct number of xdp queues upon failure net: Remove acked SYN flag from packet in the transmit queue correctly qed: Fix a potential use-after-free in qed_cxt_tables_alloc ...
2023-12-14Merge tag 'for-6.7-rc5-tag' of ↵Linus Torvalds11-50/+116
git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux Pull btrfs fixes from David Sterba: "Some fixes to quota accounting code, mostly around error handling and correctness: - free reserves on various error paths, after IO errors or transaction abort - don't clear reserved range at the folio release time, it'll be properly cleared after final write - fix integer overflow due to int used when passing around size of freed reservations - fix a regression in squota accounting that missed some cases with delayed refs" * tag 'for-6.7-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: btrfs: ensure releasing squota reserve on head refs btrfs: don't clear qgroup reserved bit in release_folio btrfs: free qgroup pertrans reserve on transaction abort btrfs: fix qgroup_free_reserved_data int overflow btrfs: free qgroup reserve when ORDERED_IOERR is set
2023-12-14ice: add documentation for FW loggingPaul M Stillwell Jr1-0/+141
Add documentation for FW logging in Documentation/networking/device_drivers/ethernet/intel/ice.rst Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2023-12-14ice: add ability to read and configure FW log dataPaul M Stillwell Jr6-0/+405
Once logging is enabled the user should read the data from the 'data' file. The data is in the form of a binary blob that can be sent to Intel for decoding. To read the data use a command like: # cat /sys/kernel/debug/ice/0000\:18\:00.0/fwlog/data > log_data.bin If the user wants to clear the FW log data that has been stored in the driver then they can write any value to the 'data' file and that will clear the data. An example is: # echo 34 > /sys/kernel/debug/ice/0000\:18\:00.0/fwlog/data In addition to being able to read the data the user can configure how much memory is used to store FW log data. This allows the user to increase/decrease the amount of memory based on the users situation. The data is stored such that if the memory fills up then the oldest data will get overwritten in a circular manner. To change the amount of memory the user can write to the 'log_size' file like this: # echo <value> > /sys/kernel/debug/ice/0000\:18\:00.0/fwlog/log_size Where <value> is one of 128K, 256K, 512K, 1M, and 2M. The default value is 1M. The user can see the current value of 'log_size' by reading the file: # cat /sys/kernel/debug/ice/0000\:18\:00.0/fwlog/log_size Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2023-12-14ice: enable FW loggingPaul M Stillwell Jr4-0/+170
Once users have configured the FW logging then allow them to enable it by writing to the 'fwlog/enable' file. The file accepts a boolean value (0 or 1) where 1 means enable FW logging and 0 means disable FW logging. # echo <value> > /sys/kernel/debug/ice/0000\:18\:00.0/fwlog/enable Where <value> is 0 or 1. The user can read the 'fwlog/enable' file to see whether logging is enabled or not. Reading the actual data is a separate patch. To see the current value then: # cat /sys/kernel/debug/ice/0000\:18\:00.0/fwlog/enable Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2023-12-14ice: configure FW loggingPaul M Stillwell Jr9-1/+796
Users want the ability to debug FW issues by retrieving the FW logs from the E8xx devices. Use debugfs to allow the user to configure the log level and number of messages for FW logging. If FW logging is supported on the E8xx then the file 'fwlog' will be created under the PCI device ID for the ice driver. If the file does not exist then either the E8xx doesn't support FW logging or debugfs is not enabled on the system. One thing users want to do is control which events are reported. The user can read and write the 'fwlog/modules/<module name>' to get/set the log levels. Each module in the FW that supports logging ht as a file under 'fwlog/modules' that supports reading (to see what the current log level is) and writing (to change the log level). The format to set the log levels for a module are: # echo <log level> > /sys/kernel/debug/ice/0000\:18\:00.0/fwlog/modules/<module> The supported log levels are: * none * error * warning * normal * verbose Each level includes the messages from the previous/lower level The modules that are supported are: * general * ctrl * link * link_topo * dnl * i2c * sdp * mdio * adminq * hdma * lldp * dcbx * dcb * xlr * nvm * auth * vpd * iosf * parser * sw * scheduler * txq * rsvd * post * watchdog * task_dispatch * mng * synce * health * tsdrv * pfreg * mdlver * all The module 'all' is a special module which allows the user to read or write to all of the modules. The following example command would set the DCB module to the 'normal' log level: # echo normal > /sys/kernel/debug/ice/0000\:18\:00.0/fwlog/modules/dcb If the user wants to set the DCB, Link, and the AdminQ modules to 'verbose' then the commands are: # echo verbose > /sys/kernel/debug/ice/0000\:18\:00.0/fwlog/modules/dcb # echo verbose > /sys/kernel/debug/ice/0000\:18\:00.0/fwlog/modules/link # echo verbose > /sys/kernel/debug/ice/0000\:18\:00.0/fwlog/modules/adminq If the user wants to set all modules to the 'warning' level then the command is: # echo warning > /sys/kernel/debug/ice/0000\:18\:00.0/fwlog/modules/all If the user wants to disable logging for a module then they can set the level to 'none'. An example setting the 'watchdog' module is: # echo none > /sys/kernel/debug/ice/0000\:18\:00.0/fwlog/modules/watchdog If the user wants to see what the log level is for a specific module then the command is: # cat /sys/kernel/debug/ice/0000\:18\:00.0/fwlog/modules/dcb This will return the log level for the DCB module. If the user wants to see the log level for all the modules then the command is: # cat /sys/kernel/debug/ice/0000\:18\:00.0/fwlog/modules/all Writing to the module file will update the configuration, but NOT enable the configuration (that is a separate command). In addition to configuring the modules, the user can also configure the number of log messages (nr_messages) to include in a single Admin Receive Queue (ARQ) event.The range is 1-128 (1 means push every log message, 128 means push only when the max AQ command buffer is full). The suggested value is 10. To see/change the resolution the user can read/write the 'fwlog/nr_messages' file. An example changing the value to 50 is # echo 50 > /sys/kernel/debug/ice/0000\:18\:00.0/fwlog/nr_messages To see the current value of 'nr_messages' then the command is: # cat /sys/kernel/debug/ice/0000\:18\:00.0/fwlog/nr_messages Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2023-12-14ice: remove FW logging codePaul M Stillwell Jr5-319/+0
The FW logging code doesn't work because there is no way to set cq_ena or uart_ena so remove the code. This code is the original (v1) way of FW logging so it should be replaced with the v2 way. Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2023-12-14net: mvpp2: add support for miiStefan Eichenberger1-3/+18
Currently, mvpp2 only supports RGMII. This commit adds support for MII. The description in Marvell's functional specification seems to be wrong. To enable MII, we need to set GENCONF_CTRL0_PORT3_RGMII, while for RGMII we need to clear it. This is also how U-Boot handles it. Signed-off-by: Stefan Eichenberger <eichest@gmail.com> Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Reviewed-by: Marcin Wojtas <mw@semihalf.com> Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Link: https://lore.kernel.org/r/20231212141200.62579-1-eichest@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-12-14net: atlantic: fix double free in ring reinit logicIgor Russkikh1-1/+4
Driver has a logic leak in ring data allocation/free, where double free may happen in aq_ring_free if system is under stress and driver init/deinit is happening. The probability is higher to get this during suspend/resume cycle. Verification was done simulating same conditions with stress -m 2000 --vm-bytes 20M --vm-hang 10 --backoff 1000 while true; do sudo ifconfig enp1s0 down; sudo ifconfig enp1s0 up; done Fixed by explicitly clearing pointers to NULL on deallocation Fixes: 018423e90bee ("net: ethernet: aquantia: Add ring support code") Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Closes: https://lore.kernel.org/netdev/CAHk-=wiZZi7FcvqVSUirHBjx0bBUZ4dFrMDVLc3+3HCrtq0rBA@mail.gmail.com/ Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Link: https://lore.kernel.org/r/20231213094044.22988-1-irusskikh@marvell.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-12-14appletalk: Fix Use-After-Free in atalk_ioctlHyunwoo Kim1-5/+4
Because atalk_ioctl() accesses sk->sk_receive_queue without holding a sk->sk_receive_queue.lock, it can cause a race with atalk_recvmsg(). A use-after-free for skb occurs with the following flow. ``` atalk_ioctl() -> skb_peek() atalk_recvmsg() -> skb_recv_datagram() -> skb_free_datagram() ``` Add sk->sk_receive_queue.lock to atalk_ioctl() to fix this issue. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Hyunwoo Kim <v4bel@theori.io> Link: https://lore.kernel.org/r/20231213041056.GA519680@v4bel-B760M-AORUS-ELITE-AX Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-12-14net: stmmac: Handle disabled MDIO busses from devicetreeAndrew Halaney1-1/+5
Many hardware configurations have the MDIO bus disabled, and are instead using some other MDIO bus to talk to the MAC's phy. of_mdiobus_register() returns -ENODEV in this case. Let's handle it gracefully instead of failing to probe the MAC. Fixes: 47dd7a540b8a ("net: add support for STMicroelectronics Ethernet controllers.") Signed-off-by: Andrew Halaney <ahalaney@redhat.com> Reviewed-by: Serge Semin <fancer.lancer@gmail.com> Link: https://lore.kernel.org/r/20231212-b4-stmmac-handle-mdio-enodev-v2-1-600171acf79f@redhat.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-12-14net: stmmac: dwmac-qcom-ethqos: Fix drops in 10M SGMII RXSneh Shah1-0/+10
In 10M SGMII mode all the packets are being dropped due to wrong Rx clock. SGMII 10MBPS mode needs RX clock divider programmed to avoid drops in Rx. Update configure SGMII function with Rx clk divider programming. Fixes: 463120c31c58 ("net: stmmac: dwmac-qcom-ethqos: add support for SGMII") Tested-by: Andrew Halaney <ahalaney@redhat.com> Signed-off-by: Sneh Shah <quic_snehshah@quicinc.com> Reviewed-by: Bjorn Andersson <quic_bjorande@quicinc.com> Link: https://lore.kernel.org/r/20231212092208.22393-1-quic_snehshah@quicinc.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-12-14Merge branch '1GbE' of ↵Jakub Kicinski3-16/+11
git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue Tony Nguyen says: ==================== Intel Wired LAN Driver Updates 2023-12-12 (igb, e1000e) This series contains updates to igb and e1000e drivers. Ilpo Järvinen does some cleanups to both drivers: utilizing FIELD_GET() helpers and using standard kernel defines over driver created ones. * '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue: e1000e: Use pcie_capability_read_word() for reading LNKSTA e1000e: Use PCI_EXP_LNKSTA_NLW & FIELD_GET() instead of custom defines/code igb: Use FIELD_GET() to extract Link Width ==================== Link: https://lore.kernel.org/r/20231212204947.513563-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-14Merge branch 'support-symmetric-xor-rss-hash'Jakub Kicinski79-1238/+1817
Ahmed Zaki says: ==================== Support symmetric-xor RSS hash Patches 1 and 2 modify the get/set_rxh ethtool API to take a pointer to struct of parameters instead of individual params. This will allow future changes to the uAPI-shared struct ethtool_rxfh without changing the drivers' API. Patch 3 adds the support at the Kernel level, allowing the user to set a symmetric-xor RSS hash for a netdevice via: # ethtool -X eth0 hfunc toeplitz symmetric-xor and clears the flag via: # ethtool -X eth0 hfunc toeplitz The "symmetric-xor" is set in a new "input_xfrm" field in struct ethtool_rxfh. Support for the new "symmetric-xor" flag will be later sent to the "ethtool" user-space tool. Patch 4 fixes a long standing bug with the ice hash function register values. The bug has been benign for now since only (asymmetric) Toeplitz hash (Zero) has been used. Patches 5 and 6 lay some groundwork refactoring. While the first is mainly cosmetic, the second is needed since there is no more room in the previous 64-bit RSS profile ID for the symmetric attribute introduced in the next patch. Finally, patches 7 and 8 add the symmetric-xor support for the ice (E800 PFs) and the iAVF drivers. ==================== Link: https://lore.kernel.org/r/20231213003321.605376-1-ahmed.zaki@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-14iavf: enable symmetric-xor RSS for Toeplitz hash functionAhmed Zaki10-8/+156
Allow the user to set the symmetric Toeplitz hash function via: # ethtool -X eth0 hfunc toeplitz symmetric-xor The driver will reject any new RSS configuration if a field other than (IP src/dst and L4 src/dst ports) is requested for hashing. The symmetric RSS will not be supported on PFs not advertising the ADV RSS Offload flag (ADV_RSS_SUPPORT()), for example the E700 series (i40e). Reviewed-by: Madhu Chittim <madhu.chittim@intel.com> Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com> Link: https://lore.kernel.org/r/20231213003321.605376-9-ahmed.zaki@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-14ice: enable symmetric-xor RSS for Toeplitz hash functionJeff Guo14-82/+402
Allow the user to set the symmetric Toeplitz hash function via: # ethtool -X eth0 hfunc toeplitz symmetric-xor All existing RSS configurations will be converted to symmetric unless they have a non-symmetric field (other than IP src/dst and L4 src/dst ports) used for hashing. The driver will reject a new RSS configuration if such a field is requested. The hash function in the E800 NICs is set per-VSI and a specific AQ command is needed to modify the hash function. Use the AQ command to enable setting the symmetric Toeplitz RSS hash function for any VSI in the new ice_set_rss_hfunc(). When the Symmetric Toeplitz hash function is used, the hardware sets the input set of the RSS (Toeplitz) algorithm to be the XOR of the fields index by HSYMM and the fields index by the INSET registers. We use this to create a symmetric hash by setting the HSYMM registers to point to their counterparts in the INSET registers: HSYMM [src_fv] = dst_fv; HSYMM [dst_fv] = src_fv; where src_fv and dst_fv are the indexes of the protocol's src and dst fields. Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com> Signed-off-by: Jeff Guo <jia.guo@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Co-developed-by: Ahmed Zaki <ahmed.zaki@intel.com> Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com> Link: https://lore.kernel.org/r/20231213003321.605376-8-ahmed.zaki@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-14ice: refactor the FD and RSS flow ID generationAhmed Zaki8-81/+55
The flow director and RSS blocks use separate methods to generate a unique 64 bit ID for the flow. This is not extendable, especially for the RSS that already uses all 64 bit space. Refactor the flow generation API so that the ID is generated within ice_flow_add_prof(). The FD and RSS blocks caches the generated ID for later use. Suggested-by: Dan Nowlin <dan.nowlin@intel.com> Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com> Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com> Link: https://lore.kernel.org/r/20231213003321.605376-7-ahmed.zaki@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-14ice: refactor RSS configurationQi Zhang6-177/+246
Refactor the driver to use a communication data structure for RSS config. To do so we introduce the new ice_rss_hash_cfg struct, and then pass it as an argument to several functions. Also introduce enum ice_rss_cfg_hdr_type to specify a more granular and flexible RSS configuration: ICE_RSS_OUTER_HEADERS - take outer layer as RSS input set ICE_RSS_INNER_HEADERS - take inner layer as RSS input set ICE_RSS_INNER_HEADERS_W_OUTER_IPV4 - take inner layer as RSS input set for packet with outer IPV4 ICE_RSS_INNER_HEADERS_W_OUTER_IPV6 - take inner layer as RSS input set for packet with outer IPV6 ICE_RSS_ANY_HEADERS - try with outer first then inner (same as the behaviour without this change) Finally, move the virtchnl_rss_algorithm enum to be with the other RSS related structures in the virtchnl.h file. There should be no functional change due to this patch. Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com> Signed-off-by: Qi Zhang <qi.z.zhang@intel.com> Co-developed-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Co-developed-by: Ahmed Zaki <ahmed.zaki@intel.com> Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com> Link: https://lore.kernel.org/r/20231213003321.605376-6-ahmed.zaki@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-14ice: fix ICE_AQ_VSI_Q_OPT_RSS_* register valuesAhmed Zaki3-13/+11
Fix the values of the ICE_AQ_VSI_Q_OPT_RSS_* registers. Shifting is already done when the values are used, no need to double shift. Bug was not discovered earlier since only ICE_AQ_VSI_Q_OPT_RSS_TPLZ (Zero) is currently used. Also, rename ICE_AQ_VSI_Q_OPT_RSS_XXX to ICE_AQ_VSI_Q_OPT_RSS_HASH_XXX for consistency. Co-developed-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com> Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com> Link: https://lore.kernel.org/r/20231213003321.605376-5-ahmed.zaki@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-14net: ethtool: add support for symmetric-xor RSS hashAhmed Zaki8-6/+74
Symmetric RSS hash functions are beneficial in applications that monitor both Tx and Rx packets of the same flow (IDS, software firewalls, ..etc). Getting all traffic of the same flow on the same RX queue results in higher CPU cache efficiency. A NIC that supports "symmetric-xor" can achieve this RSS hash symmetry by XORing the source and destination fields and pass the values to the RSS hash algorithm. The user may request RSS hash symmetry for a specific algorithm, via: # ethtool -X eth0 hfunc <hash_alg> symmetric-xor or turn symmetry off (asymmetric) by: # ethtool -X eth0 hfunc <hash_alg> The specific fields for each flow type should then be specified as usual via: # ethtool -N|-U eth0 rx-flow-hash <flow_type> s|d|f|n Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com> Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com> Link: https://lore.kernel.org/r/20231213003321.605376-4-ahmed.zaki@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-14net: ethtool: get rid of get/set_rxfh_context functionsAhmed Zaki14-300/+205
Add the RSS context parameters to struct ethtool_rxfh_param and use the get/set_rxfh to handle the RSS contexts as well. This is part 2/2 of the fix suggested in [1]: - Add a rss_context member to the argument struct and a capability like cap_link_lanes_supported to indicate whether driver supports rss contexts, then you can remove *et_rxfh_context functions, and instead call *et_rxfh() with a non-zero rss_context. Link: https://lore.kernel.org/netdev/20231121152906.2dd5f487@kernel.org/ [1] CC: Jesse Brandeburg <jesse.brandeburg@intel.com> CC: Tony Nguyen <anthony.l.nguyen@intel.com> CC: Marcin Wojtas <mw@semihalf.com> CC: Russell King <linux@armlinux.org.uk> CC: Sunil Goutham <sgoutham@marvell.com> CC: Geetha sowjanya <gakula@marvell.com> CC: Subbaraya Sundeep <sbhatta@marvell.com> CC: hariprasad <hkelam@marvell.com> CC: Saeed Mahameed <saeedm@nvidia.com> CC: Leon Romanovsky <leon@kernel.org> CC: Edward Cree <ecree.xilinx@gmail.com> CC: Martin Habets <habetsm.xilinx@gmail.com> Suggested-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com> Link: https://lore.kernel.org/r/20231213003321.605376-3-ahmed.zaki@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-14net: ethtool: pass a pointer to parameters to get/set_rxfh ethtool opsAhmed Zaki48-730/+827
The get/set_rxfh ethtool ops currently takes the rxfh (RSS) parameters as direct function arguments. This will force us to change the API (and all drivers' functions) every time some new parameters are added. This is part 1/2 of the fix, as suggested in [1]: - First simplify the code by always providing a pointer to all params (indir, key and func); the fact that some of them may be NULL seems like a weird historic thing or a premature optimization. It will simplify the drivers if all pointers are always present. - Then make the functions take a dev pointer, and a pointer to a single struct wrapping all arguments. The set_* should also take an extack. Link: https://lore.kernel.org/netdev/20231121152906.2dd5f487@kernel.org/ [1] Suggested-by: Jakub Kicinski <kuba@kernel.org> Suggested-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com> Link: https://lore.kernel.org/r/20231213003321.605376-2-ahmed.zaki@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-14Merge branch '40GbE' of ↵Jakub Kicinski5-74/+219
git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue Tony Nguyen says: ==================== Intel Wired LAN Driver Updates 2023-12-12 (iavf) This series contains updates to iavf driver only. Piotr reworks Flow Director states to deal with issues in restoring filters. Slawomir fixes shutdown processing as it was missing needed calls. * '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue: iavf: Fix iavf_shutdown to call iavf_remove instead iavf_close iavf: Handle ntuple on/off based on new state machines for flow director iavf: Introduce new state machines for flow director ==================== Link: https://lore.kernel.org/r/20231212203613.513423-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-14net: page_pool: factor out releasing DMA from releasing the pageJakub Kicinski1-9/+16
Releasing the DMA mapping will be useful for other types of pages, so factor it out. Make sure compiler inlines it, to avoid any regressions. Signed-off-by: Mina Almasry <almasrymina@google.com> Reviewed-by: Shakeel Butt <shakeelb@google.com> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-14Merge branch 'dpaa2-switch-various-fixes'Jakub Kicinski2-12/+6
Ioana Ciornei says: ==================== dpaa2-switch: various fixes The first patch fixes the size passed to two dma_unmap_single() calls which was wrongly put as the size of the pointer. The second patch is new to this series and reverts the behavior of the dpaa2-switch driver to not ask for object replay upon offloading so that we avoid the errors encountered when a VLAN is installed multiple times on the same port. ==================== Link: https://lore.kernel.org/r/20231212164326.2753457-1-ioana.ciornei@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-14dpaa2-switch: do not ask for MDB, VLAN and FDB replayIoana Ciornei1-9/+2
Starting with commit 4e51bf44a03a ("net: bridge: move the switchdev object replay helpers to "push" mode") the switchdev_bridge_port_offload() helper was extended with the intention to provide switchdev drivers easy access to object addition and deletion replays. This works by calling the replay helpers with non-NULL notifier blocks. In the same commit, the dpaa2-switch driver was updated so that it passes valid notifier blocks to the helper. At that moment, no regression was identified through testing. In the meantime, the blamed commit changed the behavior in terms of which ports get hit by the replay. Before this commit, only the initial port which identified itself as offloaded through switchdev_bridge_port_offload() got a replay of all port objects and FDBs. After this, the newly joining port will trigger a replay of objects on all bridge ports and on the bridge itself. This behavior leads to errors in dpaa2_switch_port_vlans_add() when a VLAN gets installed on the same interface multiple times. The intended mechanism to address this is to pass a non-NULL ctx to the switchdev_bridge_port_offload() helper and then check it against the port's private structure. But since the driver does not have any use for the replayed port objects and FDBs until it gains support for LAG offload, it's better to fix the issue by reverting the dpaa2-switch driver to not ask for replay. The pointers will be added back when we are prepared to ignore replays on unrelated ports. Fixes: b28d580e2939 ("net: bridge: switchdev: replay all VLAN groups") Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Link: https://lore.kernel.org/r/20231212164326.2753457-3-ioana.ciornei@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-14dpaa2-switch: fix size of the dma_unmapIoana Ciornei1-3/+4
The size of the DMA unmap was wrongly put as a sizeof of a pointer. Change the value of the DMA unmap to be the actual macro used for the allocation and the DMA map. Fixes: 1110318d83e8 ("dpaa2-switch: add tc flower hardware offload on ingress traffic") Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Link: https://lore.kernel.org/r/20231212164326.2753457-2-ioana.ciornei@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-14page_pool: transition to reference count management after page drainingLiang Chen5-38/+46
To support multiple users referencing the same fragment, 'pp_frag_count' is renamed to 'pp_ref_count', transitioning pp pages from fragment management to reference count management after draining based on the suggestion from [1]. The idea is that the concept of fragmenting exists before the page is drained, and all related functions retain their current names. However, once the page is drained, its management shifts to being governed by 'pp_ref_count'. Therefore, all functions associated with that lifecycle stage of a pp page are renamed. [1] http://lore.kernel.org/netdev/f71d9448-70c8-8793-dc9a-0eb48a570300@huawei.com Signed-off-by: Liang Chen <liangchen.linux@gmail.com> Reviewed-by: Yunsheng Lin <linyunsheng@huawei.com> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Reviewed-by: Mina Almasry <almasrymina@google.com> Link: https://lore.kernel.org/r/20231212044614.42733-2-liangchen.linux@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-12-14cxgb3: Avoid potential string truncation in descKees Cook2-6/+5
Builds with W=1 were warning about potential string truncations: drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c: In function 'cxgb_up': drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c:394:38: warning: '%d' directive output may be truncated writing between 1 and 11 bytes into a region of size between 5 and 20 [-Wformat-truncation=] 394 | "%s-%d", d->name, pi->first_qset + i); | ^~ In function 'name_msix_vecs', inlined from 'cxgb_up' at drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c:1264:3: drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c:394:34: note: directive argument in the range [-2147483641, 509] 394 | "%s-%d", d->name, pi->first_qset + i); | ^~~~~~~ drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c:393:25: note: 'snprintf' output between 3 and 28 bytes into a destination of size 21 393 | snprintf(adap->msix_info[msi_idx].desc, n, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 394 | "%s-%d", d->name, pi->first_qset + i); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Avoid open-coded %NUL-termination (this code was assuming snprintf wasn't %NUL terminating when it does -- likely thinking of strncpy), and grow the size of the string to handle a maximal value. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202312100937.ZPZCARhB-lkp@intel.com/ Cc: Raju Rangoju <rajur@chelsio.com> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20231212220954.work.219-kees@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>