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2024-01-26net: dsa: mt7530: select MEDIATEK_GE_PHY for NET_DSA_MT7530_MDIOArınç ÜNAL
Quoting from commit 4223f8651287 ("net: dsa: mt7530: make NET_DSA_MT7530 select MEDIATEK_GE_PHY"): Make MediaTek MT753x DSA driver enable MediaTek Gigabit PHYs driver to properly control MT7530 and MT7531 switch PHYs. A noticeable change is that the behaviour of switchport interfaces going up-down-up-down is no longer there. Now, the switch can be used without the PHYs but, at the moment, every hardware design out there that I have seen uses them. For that, it would make the most sense to force the selection of MEDIATEK_GE_PHY for the MDIO interface which currently controls the MT7530 and MT7531 switches. Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Link: https://lore.kernel.org/r/20240122053451.8004-1-arinc.unal@arinc9.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-26selftests/bpf: Add missing line break in test_verifierTiezhu Yang
There are no break lines in the test log for test_verifier #106 ~ #111 if jit is disabled, add the missing line break at the end of printf() to fix it. Without this patch: [root@linux bpf]# echo 0 > /proc/sys/net/core/bpf_jit_enable [root@linux bpf]# ./test_verifier 106 #106/p inline simple bpf_loop call SKIP (requires BPF JIT)Summary: 0 PASSED, 1 SKIPPED, 0 FAILED With this patch: [root@linux bpf]# echo 0 > /proc/sys/net/core/bpf_jit_enable [root@linux bpf]# ./test_verifier 106 #106/p inline simple bpf_loop call SKIP (requires BPF JIT) Summary: 0 PASSED, 1 SKIPPED, 0 FAILED Fixes: 0b50478fd877 ("selftests/bpf: Skip callback tests if jit is disabled in test_verifier") Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20240126015736.655-1-yangtiezhu@loongson.cn
2024-01-26bpf, docs: Clarify definitions of various instructionsDave Thaler
Clarify definitions of several instructions: * BPF_NEG does not support BPF_X * BPF_CALL does not support BPF_JMP32 or BPF_X * BPF_EXIT does not support BPF_X * BPF_JA does not support BPF_X (was implied but not explicitly stated) Also fix a typo in the wide instruction figure where the field is actually named "opcode" not "code". Signed-off-by: Dave Thaler <dthaler1968@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/bpf/20240126040050.8464-1-dthaler1968@gmail.com
2024-01-25bpf: Fix error checks against bpf_get_btf_vmlinux().Kui-Feng Lee
In bpf_struct_ops_map_alloc, it needs to check for NULL in the returned pointer of bpf_get_btf_vmlinux() when CONFIG_DEBUG_INFO_BTF is not set. ENOTSUPP is used to preserve the same behavior before the struct_ops kmod support. In the function check_struct_ops_btf_id(), instead of redoing the bpf_get_btf_vmlinux() that has already been done in syscall.c, the fix here is to check for prog->aux->attach_btf_id. BPF_PROG_TYPE_STRUCT_OPS must require attach_btf_id and syscall.c guarantees a valid attach_btf as long as attach_btf_id is set. When attach_btf_id is not set, this patch returns -ENOTSUPP because it is what the selftest in test_libbpf_probe_prog_types() and libbpf_probes.c are expecting for feature probing purpose. Changes from v1: - Remove an unnecessary NULL check in check_struct_ops_btf_id() Reported-by: syzbot+88f0aafe5f950d7489d7@syzkaller.appspotmail.com Closes: https://lore.kernel.org/bpf/00000000000040d68a060fc8db8c@google.com/ Reported-by: syzbot+1336f3d4b10bcda75b89@syzkaller.appspotmail.com Closes: https://lore.kernel.org/bpf/00000000000026353b060fc21c07@google.com/ Fixes: fcc2c1fb0651 ("bpf: pass attached BTF to the bpf_struct_ops subsystem") Signed-off-by: Kui-Feng Lee <thinker.li@gmail.com> Link: https://lore.kernel.org/r/20240126023113.1379504-1-thinker.li@gmail.com Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2024-01-25bpf: One more maintainer for libbpf and BPF selftestsEduard Zingerman
I've been working on BPF verifier, BPF selftests and, to some extent, libbpf, for some time. As suggested by Andrii and Alexei, I humbly ask to add me to maintainers list: - As reviewer for BPF [GENERAL] - As maintainer for BPF [LIBRARY] - As maintainer for BPF [SELFTESTS] This patch adds dedicated entries to MAINTAINERS. Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20240126032554.9697-1-eddyz87@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-01-25tsnep: Add link down PHY loopback supportGerhard Engleder
PHY loopback turns off link state change signalling. Therefore, the loopback only works if the link is already up before the PHY loopback is activated. Ensure that PHY loopback works even if the link is not already up during activation by calling netif_carrier_on() explicitly. Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com> Link: https://lore.kernel.org/r/20240123200151.60848-1-gerhard@engleder-embedded.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-25gve: Modify rx_buf_alloc_fail counter centrally and closer to failureAnkit Garg
Previously, each caller of gve_rx_alloc_buffer had to increase counter and as a result one caller was not tracking those failure. Increasing counters at a common location now so callers don't have to duplicate code or miss counter management. Signed-off-by: Ankit Garg <nktgrg@google.com> Link: https://lore.kernel.org/r/20240124205435.1021490-1-nktgrg@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-25Merge branch 'selftests-updates-to-fcnal-test-for-autoamted-environment'Jakub Kicinski
David Ahern says: ==================== selftests: Updates to fcnal-test for autoamted environment The first patch updates the PATH for fcnal-test.sh to find the nettest binary when invoked at the top-level directory via make -C tools/testing/selftests TARGETS=net run_tests Second patch fixes a bug setting the ping_group; it has a compound value and that value is not traversing the various helper functions in tact. Fix by creating a helper specific to setting it. Third patch adds more output when a test fails - e.g., to catch a change in the return code of some test. With these 3 patches, the entire suite completes successfully when run on Ubuntu 23.10 with 6.5 kernel - 914 tests pass, 0 fail. ==================== Link: https://lore.kernel.org/r/20240124214117.24687-1-dsahern@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-25selftest: Show expected and actual return codes for test failures in fcnal-testDavid Ahern
Capture expected and actual return codes for a test that fails in the fcnal-test suite. Signed-off-by: David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/20240124214117.24687-4-dsahern@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-25selftest: Fix set of ping_group_range in fcnal-testDavid Ahern
ping_group_range sysctl has a compound value which does not go through the various function layers in tact. Create a helper function to bypass the layers and correctly set the value. Signed-off-by: David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/20240124214117.24687-3-dsahern@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-25selftest: Update PATH for nettest in fcnal-testDavid Ahern
Allow fcnal-test.sh to be run from top level directory in the kernel repo as well as from tools/testing/selftests/net by setting the PATH to find the in-tree nettest. Signed-off-by: David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/20240124214117.24687-2-dsahern@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-25Merge tag 'wireless-next-2024-01-25' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Kalle Valo says: ==================== wireless-next patches for v6.9 The first "new features" pull request for v6.9. We have only driver changes this time and most of them are for Realtek drivers. Really nice to see activity in Broadcom drivers again. Major changes: rtwl8xxxu * RTL8188F: concurrent interface support * Channel Switch Announcement (CSA) support in AP mode brcmfmac * per-vendor feature support * per-vendor SAE password setup rtlwifi * speed up USB firmware initialisation * tag 'wireless-next-2024-01-25' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (105 commits) wifi: iwlegacy: Use kcalloc() instead of kzalloc() wifi: rtw89: fix disabling concurrent mode TX hang issue wifi: rtw89: fix HW scan timeout due to TSF sync issue wifi: rtw89: add wait/completion for abort scan wifi: rtw89: fix null pointer access when abort scan wifi: rtw89: disable RTS when broadcast/multicast wifi: rtw89: Set default CQM config if not present wifi: rtw89: refine hardware scan C2H events wifi: rtw89: refine add_chan H2C command to encode_bits wifi: rtw89: 8922a: add BTG functions to assist BT coexistence to control TX/RX wifi: rtw89: 8922a: add TX power related ops wifi: rtw89: 8922a: add register definitions of H2C, C2H, page, RRSR and EDCCA wifi: rtw89: 8922a: add chip_ops related to BB init wifi: rtw89: 8922a: add chip_ops::{enable,disable}_bb_rf wifi: rtw89: add mlo_dbcc_mode for WiFi 7 chips wifi: rtlwifi: Speed up firmware loading for USB wifi: rtl8xxxu: add missing number of sec cam entries for all variants wifi: brcmfmac: allow per-vendor event handling wifi: brcmfmac: avoid invalid list operation when vendor attach fails wifi: brcmfmac: Demote vendor-specific attach/detach messages to info ... ==================== Link: https://lore.kernel.org/r/20240125104030.B6CA6C433C7@smtp.kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-25vsock/test: print type for SOCK_SEQPACKETArseniy Krasnov
SOCK_SEQPACKET is supported for virtio transport, so do not interpret such type of socket as unknown. Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Link: https://lore.kernel.org/r/20240124193255.3417803-1-avkrasnov@salutedevices.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-25Merge branch 'selftests-tc-testing-misc-changes-for-tdc'Jakub Kicinski
Pedro Tammela says: ==================== selftests: tc-testing: misc changes for tdc Patches 1 and 3 are fixes for tdc that were discovered when running it using defconfig + tc-testing config and against the latest iproute2. Patch 2 improves the taprio tests. Patch 4 enables all tdc tests. Patch 5 fixes the return code of tdc for when a test fails setup/teardown. ==================== Link: https://lore.kernel.org/r/20240124181933.75724-1-pctammela@mojatatu.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-25selftests: tc-testing: return fail if a test fails in setup/teardownPedro Tammela
As of today tests throwing exceptions in setup/teardown phase are treated as skipped but they should really be failures. Signed-off-by: Pedro Tammela <pctammela@mojatatu.com> Reviewed-by: Davide Caratti <dcaratti@redhat.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Reviewed-by: Davide Caratti <dcaratti@redhat.com> Link: https://lore.kernel.org/r/20240124181933.75724-6-pctammela@mojatatu.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-25selftests: tc-testing: enable all tdc testsPedro Tammela
For the longest time tdc ran only actions and qdiscs tests. It's time to enable all the remaining tests so every user visible piece of TC is tested by the downstream CIs. Signed-off-by: Pedro Tammela <pctammela@mojatatu.com> Reviewed-by: Davide Caratti <dcaratti@redhat.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Reviewed-by: Davide Caratti <dcaratti@redhat.com> Link: https://lore.kernel.org/r/20240124181933.75724-5-pctammela@mojatatu.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-25selftests: tc-testing: adjust fq test to latest iproute2Pedro Tammela
Adjust the fq verify regex to the latest iproute2 Signed-off-by: Pedro Tammela <pctammela@mojatatu.com> Reviewed-by: Davide Caratti <dcaratti@redhat.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Reviewed-by: Davide Caratti <dcaratti@redhat.com> Link: https://lore.kernel.org/r/20240124181933.75724-4-pctammela@mojatatu.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-25selftests: tc-testing: check if 'jq' is available in taprio testsPedro Tammela
If 'jq' is not available the taprio tests might enter an infinite loop, use the "dependsOn" feature from tdc to check if jq is present. If it's not the test is skipped. Suggested-by: Davide Caratti <dcaratti@redhat.com> Signed-off-by: Pedro Tammela <pctammela@mojatatu.com> Reviewed-by: Davide Caratti <dcaratti@redhat.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Reviewed-by: Davide Caratti <dcaratti@redhat.com> Link: https://lore.kernel.org/r/20240124181933.75724-3-pctammela@mojatatu.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-25selftests: tc-testing: add missing netfilter configPedro Tammela
On a default config + tc-testing config build, tdc will miss all the netfilter related tests because it's missing: CONFIG_NETFILTER=y Signed-off-by: Pedro Tammela <pctammela@mojatatu.com> Reviewed-by: Davide Caratti <dcaratti@redhat.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Reviewed-by: Davide Caratti <dcaratti@redhat.com> Link: https://lore.kernel.org/r/20240124181933.75724-2-pctammela@mojatatu.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR. No conflicts or adjacent changes. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-25Merge tag 'net-6.8-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Including fixes from bpf, netfilter and WiFi. Jakub is doing a lot of work to include the self-tests in our CI, as a result a significant amount of self-tests related fixes is flowing in (and will likely continue in the next few weeks). Current release - regressions: - bpf: fix a kernel crash for the riscv 64 JIT - bnxt_en: fix memory leak in bnxt_hwrm_get_rings() - revert "net: macsec: use skb_ensure_writable_head_tail to expand the skb" Previous releases - regressions: - core: fix removing a namespace with conflicting altnames - tc/flower: fix chain template offload memory leak - tcp: - make sure init the accept_queue's spinlocks once - fix autocork on CPUs with weak memory model - udp: fix busy polling - mlx5e: - fix out-of-bound read in port timestamping - fix peer flow lists corruption - iwlwifi: fix a memory corruption Previous releases - always broken: - netfilter: - nft_chain_filter: handle NETDEV_UNREGISTER for inet/ingress basechain - nft_limit: reject configurations that cause integer overflow - bpf: fix bpf_xdp_adjust_tail() with XSK zero-copy mbuf, avoiding a NULL pointer dereference upon shrinking - llc: make llc_ui_sendmsg() more robust against bonding changes - smc: fix illegal rmb_desc access in SMC-D connection dump - dpll: fix pin dump crash for rebound module - bnxt_en: fix possible crash after creating sw mqprio TCs - hv_netvsc: calculate correct ring size when PAGE_SIZE is not 4kB Misc: - several self-tests fixes for better integration with the netdev CI - added several missing modules descriptions" * tag 'net-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (88 commits) tsnep: Fix XDP_RING_NEED_WAKEUP for empty fill ring tsnep: Remove FCS for XDP data path net: fec: fix the unhandled context fault from smmu selftests: bonding: do not test arp/ns target with mode balance-alb/tlb fjes: fix memleaks in fjes_hw_setup i40e: update xdp_rxq_info::frag_size for ZC enabled Rx queue i40e: set xdp_rxq_info::frag_size xdp: reflect tail increase for MEM_TYPE_XSK_BUFF_POOL ice: update xdp_rxq_info::frag_size for ZC enabled Rx queue intel: xsk: initialize skb_frag_t::bv_offset in ZC drivers ice: remove redundant xdp_rxq_info registration i40e: handle multi-buffer packets that are shrunk by xdp prog ice: work on pre-XDP prog frag count xsk: fix usage of multi-buffer BPF helpers for ZC XDP xsk: make xsk_buff_pool responsible for clearing xdp_buff::flags xsk: recycle buffer in case Rx queue was full net: fill in MODULE_DESCRIPTION()s for rvu_mbox net: fill in MODULE_DESCRIPTION()s for litex net: fill in MODULE_DESCRIPTION()s for fsl_pq_mdio net: fill in MODULE_DESCRIPTION()s for fec ...
2024-01-25Merge tag 'ovl-fixes-6.8-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/overlayfs/vfs Pull overlayfs fix from Amir Goldstein: "Change the on-disk format for the new "xwhiteouts" feature introduced in v6.7 The change reduces unneeded overhead of an extra getxattr per readdir. The only user of the "xwhiteout" feature is the external composefs tool, which has been updated to support the new on-disk format. This change is also designated for 6.7.y" * tag 'ovl-fixes-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/overlayfs/vfs: ovl: mark xwhiteouts directory with overlay.opaque='x'
2024-01-25Merge tag 'vfs-6.8-rc2.netfs' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull netfs fixes from Christian Brauner: "This contains various fixes for the netfs work merged earlier this cycle: afs: - Fix locking imbalance in afs_proc_addr_prefs_show() - Remove afs_dynroot_d_revalidate() which is redundant - Fix error handling during lookup - Hide sillyrenames from userspace. This fixes a race between silly-rename files being created/removed and userspace iterating over directory entries - Don't use unnecessary folio_*() functions cifs: - Don't use unnecessary folio_*() functions cachefiles: - erofs: Fix Null dereference when cachefiles are not doing ondemand-mode - Update mailing list netfs library: - Add Jeff Layton as reviewer - Update mailing list - Fix a error checking in netfs_perform_write() - fscache: Check error before dereferencing - Don't use unnecessary folio_*() functions" * tag 'vfs-6.8-rc2.netfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: afs: Fix missing/incorrect unlocking of RCU read lock afs: Remove afs_dynroot_d_revalidate() as it is redundant afs: Fix error handling with lookup via FS.InlineBulkStatus afs: Hide silly-rename files from userspace cachefiles, erofs: Fix NULL deref in when cachefiles is not doing ondemand-mode netfs: Fix a NULL vs IS_ERR() check in netfs_perform_write() netfs, fscache: Prevent Oops in fscache_put_cache() cifs: Don't use certain unnecessary folio_*() functions afs: Don't use certain unnecessary folio_*() functions netfs: Don't use certain unnecessary folio_*() functions netfs: Add Jeff Layton as reviewer netfs, cachefiles: Change mailing list
2024-01-25Merge tag 'nfsd-6.8-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux Pull nfsd fixes from Chuck Lever: - Fix in-kernel RPC UDP transport - Fix NFSv4.0 RELEASE_LOCKOWNER * tag 'nfsd-6.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: nfsd: fix RELEASE_LOCKOWNER SUNRPC: use request size to initialize bio_vec in svc_udp_sendto()
2024-01-25Merge tag 'urgent-rcu.2024.01.24a' of https://github.com/neeraju/linuxLinus Torvalds
Pull RCU fix from Neeraj Upadhyay: "This fixes RCU grace period stalls, which are observed when an outgoing CPU's quiescent state reporting results in wakeup of one of the grace period kthreads, to complete the grace period. If those kthreads have SCHED_FIFO policy, the wake up can indirectly arm the RT bandwith timer to the local offline CPU. Earlier migration of the hrtimers from the CPU introduced in commit 5c0930ccaad5 ("hrtimers: Push pending hrtimers away from outgoing CPU earlier") results in this timer getting ignored. If the RCU grace period kthreads are waiting for RT bandwidth to be available, they may never be actually scheduled, resulting in RCU stall warnings" * tag 'urgent-rcu.2024.01.24a' of https://github.com/neeraju/linux: rcu: Defer RCU kthreads wakeup when CPU is dying
2024-01-25net: dsa: mt7530: support OF-based registration of switch MDIO busArınç ÜNAL
Currently the MDIO bus of the switches the MT7530 DSA subdriver controls can only be registered as non-OF-based. Bring support for registering the bus OF-based. The subdrivers that control switches [with MDIO bus] probed on OF must follow this logic to support all cases properly: No switch MDIO bus defined: Populate ds->user_mii_bus, register the MDIO bus, set the interrupts for PHYs if "interrupt-controller" is defined at the switch node. This case should only be covered for the switches which their dt-bindings documentation didn't document the MDIO bus from the start. This is to keep supporting the device trees that do not describe the MDIO bus on the device tree but the MDIO bus is being used nonetheless. Switch MDIO bus defined: Don't populate ds->user_mii_bus, register the MDIO bus, set the interrupts for PHYs if ["interrupt-controller" is defined at the switch node and "interrupts" is defined at the PHY nodes under the switch MDIO bus node]. Switch MDIO bus defined but explicitly disabled: If the device tree says status = "disabled" for the MDIO bus, we shouldn't need an MDIO bus at all. Instead, just exit as early as possible and do not call any MDIO API. The use of ds->user_mii_bus is inappropriate when the MDIO bus of the switch is described on the device tree [1], which is why we don't populate ds->user_mii_bus in that case. Link: https://lore.kernel.org/netdev/20231213120656.x46fyad6ls7sqyzv@skbuf/ [1] Suggested-by: David Bauer <mail@david-bauer.net> Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Link: https://lore.kernel.org/r/20240122053431.7751-1-arinc.unal@arinc9.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-01-25Merge branch 'tsnep-xdp-fixes'Paolo Abeni
Gerhard Engleder says: ==================== tsnep: XDP fixes Found two driver specific problems during XDP and XSK testing. ==================== Link: https://lore.kernel.org/r/20240123200918.61219-1-gerhard@engleder-embedded.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-01-25tsnep: Fix XDP_RING_NEED_WAKEUP for empty fill ringGerhard Engleder
The fill ring of the XDP socket may contain not enough buffers to completey fill the RX queue during socket creation. In this case the flag XDP_RING_NEED_WAKEUP is not set as this flag is only set if the RX queue is not completely filled during polling. Set XDP_RING_NEED_WAKEUP flag also if RX queue is not completely filled during XDP socket creation. Fixes: 3fc2333933fd ("tsnep: Add XDP socket zero-copy RX support") Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-01-25tsnep: Remove FCS for XDP data pathGerhard Engleder
The RX data buffer includes the FCS. The FCS is already stripped for the normal data path. But for the XDP data path the FCS is included and acts like additional/useless data. Remove the FCS from the RX data buffer also for XDP. Fixes: 65b28c810035 ("tsnep: Add XDP RX support") Fixes: 3fc2333933fd ("tsnep: Add XDP socket zero-copy RX support") Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-01-25Merge tag 'mlx5-fixes-2024-01-24' of ↵Paolo Abeni
git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux Saeed Mahameed says: ==================== mlx5 fixes 2024-01-24 This series provides bug fixes to mlx5 driver. Please pull and let me know if there is any problem. * tag 'mlx5-fixes-2024-01-24' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux: net/mlx5e: fix a potential double-free in fs_any_create_groups net/mlx5e: fix a double-free in arfs_create_groups net/mlx5e: Ignore IPsec replay window values on sender side net/mlx5e: Allow software parsing when IPsec crypto is enabled net/mlx5: Use mlx5 device constant for selecting CQ period mode for ASO net/mlx5: DR, Can't go to uplink vport on RX rule net/mlx5: DR, Use the right GVMI number for drop action net/mlx5: Bridge, fix multicast packets sent to uplink net/mlx5: Fix a WARN upon a callback command failure net/mlx5e: Fix peer flow lists handling net/mlx5e: Fix inconsistent hairpin RQT sizes net/mlx5e: Fix operation precedence bug in port timestamping napi_poll context net/mlx5: Fix query of sd_group field net/mlx5e: Use the correct lag ports number when creating TISes ==================== Link: https://lore.kernel.org/r/20240124081855.115410-1-saeed@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-01-25Merge tag 'for-netdev' of ↵Paolo Abeni
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf Daniel Borkmann says: ==================== pull-request: bpf 2024-01-25 The following pull-request contains BPF updates for your *net* tree. We've added 12 non-merge commits during the last 2 day(s) which contain a total of 13 files changed, 190 insertions(+), 91 deletions(-). The main changes are: 1) Fix bpf_xdp_adjust_tail() in context of XSK zero-copy drivers which support XDP multi-buffer. The former triggered a NULL pointer dereference upon shrinking, from Maciej Fijalkowski & Tirthendu Sarkar. 2) Fix a bug in riscv64 BPF JIT which emitted a wrong prologue and epilogue for struct_ops programs, from Pu Lehui. * tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: i40e: update xdp_rxq_info::frag_size for ZC enabled Rx queue i40e: set xdp_rxq_info::frag_size xdp: reflect tail increase for MEM_TYPE_XSK_BUFF_POOL ice: update xdp_rxq_info::frag_size for ZC enabled Rx queue intel: xsk: initialize skb_frag_t::bv_offset in ZC drivers ice: remove redundant xdp_rxq_info registration i40e: handle multi-buffer packets that are shrunk by xdp prog ice: work on pre-XDP prog frag count xsk: fix usage of multi-buffer BPF helpers for ZC XDP xsk: make xsk_buff_pool responsible for clearing xdp_buff::flags xsk: recycle buffer in case Rx queue was full riscv, bpf: Fix unpredictable kernel crash about RV64 struct_ops ==================== Link: https://lore.kernel.org/r/20240125084416.10876-1-daniel@iogearbox.net Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-01-25net: fec: fix the unhandled context fault from smmuShenwei Wang
When repeatedly changing the interface link speed using the command below: ethtool -s eth0 speed 100 duplex full ethtool -s eth0 speed 1000 duplex full The following errors may sometimes be reported by the ARM SMMU driver: [ 5395.035364] fec 5b040000.ethernet eth0: Link is Down [ 5395.039255] arm-smmu 51400000.iommu: Unhandled context fault: fsr=0x402, iova=0x00000000, fsynr=0x100001, cbfrsynra=0x852, cb=2 [ 5398.108460] fec 5b040000.ethernet eth0: Link is Up - 100Mbps/Full - flow control off It is identified that the FEC driver does not properly stop the TX queue during the link speed transitions, and this results in the invalid virtual I/O address translations from the SMMU and causes the context faults. Fixes: dbc64a8ea231 ("net: fec: move calls to quiesce/resume packet processing out of fec_restart()") Signed-off-by: Shenwei Wang <shenwei.wang@nxp.com> Link: https://lore.kernel.org/r/20240123165141.2008104-1-shenwei.wang@nxp.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-01-25selftests: bonding: do not test arp/ns target with mode balance-alb/tlbHangbin Liu
The prio_arp/ns tests hard code the mode to active-backup. At the same time, The balance-alb/tlb modes do not support arp/ns target. So remove the prio_arp/ns tests from the loop and only test active-backup mode. Fixes: 481b56e0391e ("selftests: bonding: re-format bond option tests") Reported-by: Jay Vosburgh <jay.vosburgh@canonical.com> Closes: https://lore.kernel.org/netdev/17415.1705965957@famine/ Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com> Link: https://lore.kernel.org/r/20240123075917.1576360-1-liuhangbin@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-01-24Merge tag 'nf-24-01-24' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following patchset contains Netfilter fixes for net: 1) Update nf_tables kdoc to keep it in sync with the code, from George Guo. 2) Handle NETDEV_UNREGISTER event for inet/ingress basechain. 3) Reject configuration that cause nft_limit to overflow, from Florian Westphal. 4) Restrict anonymous set/map names to 16 bytes, from Florian Westphal. 5) Disallow to encode queue number and error in verdicts. This reverts a patch which seems to have introduced an early attempt to support for nfqueue maps, which is these days supported via nft_queue expression. 6) Sanitize family via .validate for expressions that explicitly refer to NF_INET_* hooks. * tag 'nf-24-01-24' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf: netfilter: nf_tables: validate NFPROTO_* family netfilter: nf_tables: reject QUEUE/DROP verdict parameters netfilter: nf_tables: restrict anonymous set and map names to 16 bytes netfilter: nft_limit: reject configurations that cause integer overflow netfilter: nft_chain_filter: handle NETDEV_UNREGISTER for inet/ingress basechain netfilter: nf_tables: cleanup documentation ==================== Link: https://lore.kernel.org/r/20240124191248.75463-1-pablo@netfilter.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-24fjes: fix memleaks in fjes_hw_setupZhipeng Lu
In fjes_hw_setup, it allocates several memory and delay the deallocation to the fjes_hw_exit in fjes_probe through the following call chain: fjes_probe |-> fjes_hw_init |-> fjes_hw_setup |-> fjes_hw_exit However, when fjes_hw_setup fails, fjes_hw_exit won't be called and thus all the resources allocated in fjes_hw_setup will be leaked. In this patch, we free those resources in fjes_hw_setup and prevents such leaks. Fixes: 2fcbca687702 ("fjes: platform_driver's .probe and .remove routine") Signed-off-by: Zhipeng Lu <alexious@zju.edu.cn> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://lore.kernel.org/r/20240122172445.3841883-1-alexious@zju.edu.cn Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-24tipc: node: remove Excess struct member kernel-doc warningsRandy Dunlap
Remove 2 kernel-doc descriptions to squelch warnings: node.c:150: warning: Excess struct member 'inputq' description in 'tipc_node' node.c:150: warning: Excess struct member 'namedq' description in 'tipc_node' Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Jon Maloy <jmaloy@redhat.com> Cc: Ying Xue <ying.xue@windriver.com> Cc: Jonathan Corbet <corbet@lwn.net> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://lore.kernel.org/r/20240123051152.23684-1-rdunlap@infradead.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-24tipc: socket: remove Excess struct member kernel-doc warningRandy Dunlap
Remove a kernel-doc description to squelch a warning: socket.c:143: warning: Excess struct member 'blocking_link' description in 'tipc_sock' Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Jon Maloy <jmaloy@redhat.com> Cc: Ying Xue <ying.xue@windriver.com> Cc: Jonathan Corbet <corbet@lwn.net> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://lore.kernel.org/r/20240123051201.24701-1-rdunlap@infradead.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-24vsock/test: add '--peer-port' input argumentArseniy Krasnov
Implement port for given CID as input argument instead of using hardcoded value '1234'. This allows to run different test instances on a single CID. Port argument is not required parameter and if it is not set, then default value will be '1234' - thus we preserve previous behaviour. Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Link: https://lore.kernel.org/r/20240123072750.4084181-1-avkrasnov@salutedevices.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-24Merge tag 'ceph-for-6.8-rc2' of https://github.com/ceph/ceph-clientLinus Torvalds
Pull ceph fixes from Ilya Dryomov: "A fix to avoid triggering an assert in some cases where RBD exclusive mappings are involved and a deprecated API cleanup" * tag 'ceph-for-6.8-rc2' of https://github.com/ceph/ceph-client: rbd: don't move requests to the running list on errors rbd: remove usage of the deprecated ida_simple_*() API
2024-01-24Merge tag 'integrity-v6.8-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity Pull integrity fix from Mimi Zohar: "Revert patch that required user-provided key data, since keys can be created from kernel-generated random numbers" * tag 'integrity-v6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity: Revert "KEYS: encrypted: Add check for strsep"
2024-01-24Merge branch 'net-bpf_xdp_adjust_tail-and-intel-mbuf-fixes'Alexei Starovoitov
Maciej Fijalkowski says: ==================== net: bpf_xdp_adjust_tail() and Intel mbuf fixes Hey, after a break followed by dealing with sickness, here is a v6 that makes bpf_xdp_adjust_tail() actually usable for ZC drivers that support XDP multi-buffer. Since v4 I tried also using bpf_xdp_adjust_tail() with positive offset which exposed yet another issues, which can be observed by increased commit count when compared to v3. John, in the end I think we should remove handling MEM_TYPE_XSK_BUFF_POOL from __xdp_return(), but it is out of the scope for fixes set, IMHO. Thanks, Maciej v6: - add acks [Magnus] - fix spelling mistakes [Magnus] - avoid touching xdp_buff in xp_alloc_{reused,new_from_fq}() [Magnus] - s/shrink_data/bpf_xdp_shrink_data [Jakub] - remove __shrink_data() [Jakub] - check retvals from __xdp_rxq_info_reg() [Magnus] v5: - pick correct version of patch 5 [Simon] - elaborate a bit more on what patch 2 fixes v4: - do not clear frags flag when deleting tail; xsk_buff_pool now does that - skip some NULL tests for xsk_buff_get_tail [Martin, John] - address problems around registering xdp_rxq_info - fix bpf_xdp_frags_increase_tail() for ZC mbuf v3: - add acks - s/xsk_buff_tail_del/xsk_buff_del_tail - address i40e as well (thanks Tirthendu) v2: - fix !CONFIG_XDP_SOCKETS builds - add reviewed-by tag to patch 3 ==================== Link: https://lore.kernel.org/r/20240124191602.566724-1-maciej.fijalkowski@intel.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-01-24i40e: update xdp_rxq_info::frag_size for ZC enabled Rx queueMaciej Fijalkowski
Now that i40e driver correctly sets up frag_size in xdp_rxq_info, let us make it work for ZC multi-buffer as well. i40e_ring::rx_buf_len for ZC is being set via xsk_pool_get_rx_frame_size() and this needs to be propagated up to xdp_rxq_info. Fixes: 1c9ba9c14658 ("i40e: xsk: add RX multi-buffer support") Acked-by: Magnus Karlsson <magnus.karlsson@intel.com> Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Link: https://lore.kernel.org/r/20240124191602.566724-12-maciej.fijalkowski@intel.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-01-24i40e: set xdp_rxq_info::frag_sizeMaciej Fijalkowski
i40e support XDP multi-buffer so it is supposed to use __xdp_rxq_info_reg() instead of xdp_rxq_info_reg() and set the frag_size. It can not be simply converted at existing callsite because rx_buf_len could be un-initialized, so let us register xdp_rxq_info within i40e_configure_rx_ring(), which happen to be called with already initialized rx_buf_len value. Commit 5180ff1364bc ("i40e: use int for i40e_status") converted 'err' to int, so two variables to deal with return codes are not needed within i40e_configure_rx_ring(). Remove 'ret' and use 'err' to handle status from xdp_rxq_info registration. Fixes: e213ced19bef ("i40e: add support for XDP multi-buffer Rx") Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Link: https://lore.kernel.org/r/20240124191602.566724-11-maciej.fijalkowski@intel.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-01-24xdp: reflect tail increase for MEM_TYPE_XSK_BUFF_POOLMaciej Fijalkowski
XSK ZC Rx path calculates the size of data that will be posted to XSK Rx queue via subtracting xdp_buff::data_end from xdp_buff::data. In bpf_xdp_frags_increase_tail(), when underlying memory type of xdp_rxq_info is MEM_TYPE_XSK_BUFF_POOL, add offset to data_end in tail fragment, so that later on user space will be able to take into account the amount of bytes added by XDP program. Fixes: 24ea50127ecf ("xsk: support mbuf on ZC RX") Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Link: https://lore.kernel.org/r/20240124191602.566724-10-maciej.fijalkowski@intel.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-01-24ice: update xdp_rxq_info::frag_size for ZC enabled Rx queueMaciej Fijalkowski
Now that ice driver correctly sets up frag_size in xdp_rxq_info, let us make it work for ZC multi-buffer as well. ice_rx_ring::rx_buf_len for ZC is being set via xsk_pool_get_rx_frame_size() and this needs to be propagated up to xdp_rxq_info. Use a bigger hammer and instead of unregistering only xdp_rxq_info's memory model, unregister it altogether and register it again and have xdp_rxq_info with correct frag_size value. Fixes: 1bbc04de607b ("ice: xsk: add RX multi-buffer support") Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Link: https://lore.kernel.org/r/20240124191602.566724-9-maciej.fijalkowski@intel.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-01-24intel: xsk: initialize skb_frag_t::bv_offset in ZC driversMaciej Fijalkowski
Ice and i40e ZC drivers currently set offset of a frag within skb_shared_info to 0, which is incorrect. xdp_buffs that come from xsk_buff_pool always have 256 bytes of a headroom, so they need to be taken into account to retrieve xdp_buff::data via skb_frag_address(). Otherwise, bpf_xdp_frags_increase_tail() would be starting its job from xdp_buff::data_hard_start which would result in overwriting existing payload. Fixes: 1c9ba9c14658 ("i40e: xsk: add RX multi-buffer support") Fixes: 1bbc04de607b ("ice: xsk: add RX multi-buffer support") Acked-by: Magnus Karlsson <magnus.karlsson@intel.com> Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Link: https://lore.kernel.org/r/20240124191602.566724-8-maciej.fijalkowski@intel.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-01-24ice: remove redundant xdp_rxq_info registrationMaciej Fijalkowski
xdp_rxq_info struct can be registered by drivers via two functions - xdp_rxq_info_reg() and __xdp_rxq_info_reg(). The latter one allows drivers that support XDP multi-buffer to set up xdp_rxq_info::frag_size which in turn will make it possible to grow the packet via bpf_xdp_adjust_tail() BPF helper. Currently, ice registers xdp_rxq_info in two spots: 1) ice_setup_rx_ring() // via xdp_rxq_info_reg(), BUG 2) ice_vsi_cfg_rxq() // via __xdp_rxq_info_reg(), OK Cited commit under fixes tag took care of setting up frag_size and updated registration scheme in 2) but it did not help as 1) is called before 2) and as shown above it uses old registration function. This means that 2) sees that xdp_rxq_info is already registered and never calls __xdp_rxq_info_reg() which leaves us with xdp_rxq_info::frag_size being set to 0. To fix this misbehavior, simply remove xdp_rxq_info_reg() call from ice_setup_rx_ring(). Fixes: 2fba7dc5157b ("ice: Add support for XDP multi-buffer on Rx side") Acked-by: Magnus Karlsson <magnus.karlsson@intel.com> Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Link: https://lore.kernel.org/r/20240124191602.566724-7-maciej.fijalkowski@intel.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-01-24i40e: handle multi-buffer packets that are shrunk by xdp progTirthendu Sarkar
XDP programs can shrink packets by calling the bpf_xdp_adjust_tail() helper function. For multi-buffer packets this may lead to reduction of frag count stored in skb_shared_info area of the xdp_buff struct. This results in issues with the current handling of XDP_PASS and XDP_DROP cases. For XDP_PASS, currently skb is being built using frag count of xdp_buffer before it was processed by XDP prog and thus will result in an inconsistent skb when frag count gets reduced by XDP prog. To fix this, get correct frag count while building the skb instead of using pre-obtained frag count. For XDP_DROP, current page recycling logic will not reuse the page but instead will adjust the pagecnt_bias so that the page can be freed. This again results in inconsistent behavior as the page refcnt has already been changed by the helper while freeing the frag(s) as part of shrinking the packet. To fix this, only adjust pagecnt_bias for buffers that are stillpart of the packet post-xdp prog run. Fixes: e213ced19bef ("i40e: add support for XDP multi-buffer Rx") Reported-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Signed-off-by: Tirthendu Sarkar <tirthendu.sarkar@intel.com> Link: https://lore.kernel.org/r/20240124191602.566724-6-maciej.fijalkowski@intel.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-01-24ice: work on pre-XDP prog frag countMaciej Fijalkowski
Fix an OOM panic in XDP_DRV mode when a XDP program shrinks a multi-buffer packet by 4k bytes and then redirects it to an AF_XDP socket. Since support for handling multi-buffer frames was added to XDP, usage of bpf_xdp_adjust_tail() helper within XDP program can free the page that given fragment occupies and in turn decrease the fragment count within skb_shared_info that is embedded in xdp_buff struct. In current ice driver codebase, it can become problematic when page recycling logic decides not to reuse the page. In such case, __page_frag_cache_drain() is used with ice_rx_buf::pagecnt_bias that was not adjusted after refcount of page was changed by XDP prog which in turn does not drain the refcount to 0 and page is never freed. To address this, let us store the count of frags before the XDP program was executed on Rx ring struct. This will be used to compare with current frag count from skb_shared_info embedded in xdp_buff. A smaller value in the latter indicates that XDP prog freed frag(s). Then, for given delta decrement pagecnt_bias for XDP_DROP verdict. While at it, let us also handle the EOP frag within ice_set_rx_bufs_act() to make our life easier, so all of the adjustments needed to be applied against freed frags are performed in the single place. Fixes: 2fba7dc5157b ("ice: Add support for XDP multi-buffer on Rx side") Acked-by: Magnus Karlsson <magnus.karlsson@intel.com> Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Link: https://lore.kernel.org/r/20240124191602.566724-5-maciej.fijalkowski@intel.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-01-24xsk: fix usage of multi-buffer BPF helpers for ZC XDPMaciej Fijalkowski
Currently when packet is shrunk via bpf_xdp_adjust_tail() and memory type is set to MEM_TYPE_XSK_BUFF_POOL, null ptr dereference happens: [1136314.192256] BUG: kernel NULL pointer dereference, address: 0000000000000034 [1136314.203943] #PF: supervisor read access in kernel mode [1136314.213768] #PF: error_code(0x0000) - not-present page [1136314.223550] PGD 0 P4D 0 [1136314.230684] Oops: 0000 [#1] PREEMPT SMP NOPTI [1136314.239621] CPU: 8 PID: 54203 Comm: xdpsock Not tainted 6.6.0+ #257 [1136314.250469] Hardware name: Intel Corporation S2600WFT/S2600WFT, BIOS SE5C620.86B.02.01.0008.031920191559 03/19/2019 [1136314.265615] RIP: 0010:__xdp_return+0x6c/0x210 [1136314.274653] Code: ad 00 48 8b 47 08 49 89 f8 a8 01 0f 85 9b 01 00 00 0f 1f 44 00 00 f0 41 ff 48 34 75 32 4c 89 c7 e9 79 cd 80 ff 83 fe 03 75 17 <f6> 41 34 01 0f 85 02 01 00 00 48 89 cf e9 22 cc 1e 00 e9 3d d2 86 [1136314.302907] RSP: 0018:ffffc900089f8db0 EFLAGS: 00010246 [1136314.312967] RAX: ffffc9003168aed0 RBX: ffff8881c3300000 RCX: 0000000000000000 [1136314.324953] RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffffc9003168c000 [1136314.336929] RBP: 0000000000000ae0 R08: 0000000000000002 R09: 0000000000010000 [1136314.348844] R10: ffffc9000e495000 R11: 0000000000000040 R12: 0000000000000001 [1136314.360706] R13: 0000000000000524 R14: ffffc9003168aec0 R15: 0000000000000001 [1136314.373298] FS: 00007f8df8bbcb80(0000) GS:ffff8897e0e00000(0000) knlGS:0000000000000000 [1136314.386105] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [1136314.396532] CR2: 0000000000000034 CR3: 00000001aa912002 CR4: 00000000007706f0 [1136314.408377] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [1136314.420173] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [1136314.431890] PKRU: 55555554 [1136314.439143] Call Trace: [1136314.446058] <IRQ> [1136314.452465] ? __die+0x20/0x70 [1136314.459881] ? page_fault_oops+0x15b/0x440 [1136314.468305] ? exc_page_fault+0x6a/0x150 [1136314.476491] ? asm_exc_page_fault+0x22/0x30 [1136314.484927] ? __xdp_return+0x6c/0x210 [1136314.492863] bpf_xdp_adjust_tail+0x155/0x1d0 [1136314.501269] bpf_prog_ccc47ae29d3b6570_xdp_sock_prog+0x15/0x60 [1136314.511263] ice_clean_rx_irq_zc+0x206/0xc60 [ice] [1136314.520222] ? ice_xmit_zc+0x6e/0x150 [ice] [1136314.528506] ice_napi_poll+0x467/0x670 [ice] [1136314.536858] ? ttwu_do_activate.constprop.0+0x8f/0x1a0 [1136314.546010] __napi_poll+0x29/0x1b0 [1136314.553462] net_rx_action+0x133/0x270 [1136314.561619] __do_softirq+0xbe/0x28e [1136314.569303] do_softirq+0x3f/0x60 This comes from __xdp_return() call with xdp_buff argument passed as NULL which is supposed to be consumed by xsk_buff_free() call. To address this properly, in ZC case, a node that represents the frag being removed has to be pulled out of xskb_list. Introduce appropriate xsk helpers to do such node operation and use them accordingly within bpf_xdp_adjust_tail(). Fixes: 24ea50127ecf ("xsk: support mbuf on ZC RX") Acked-by: Magnus Karlsson <magnus.karlsson@intel.com> # For the xsk header part Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Link: https://lore.kernel.org/r/20240124191602.566724-4-maciej.fijalkowski@intel.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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