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2025-07-09wifi: iwlwifi: bump minimum API version in BZMiri Korenblit
Stop supporting older FWs Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250709081300.71404c289481.Iea4f3d36e18029a817ec5d6641d08ac5ee025678@changeid
2025-07-09wifi: iwlwifi: mvm: remove unneeded argumentMiri Korenblit
iwl_mvm_set_key_rx_seq is called only once when the installed argument is false. Remove this argument. Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250709081300.2586112afd70.Iddf9a2b24546cb3a1506d68ca41ed215f88cff5c@changeid
2025-07-09wifi: iwlwifi: mvm: remove MLO GTK rekey codeMiri Korenblit
iwlmvm driver does not support MLO. Remove this code Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250709081300.4957e50dee91.I2a432256dbc3069e0300e1f833e10a93d203f538@changeid
2025-07-09wifi: iwlwifi: pcie: rename iwl_pci_gen1_2_probe() argumentJohannes Berg
Using 'trans' for the mac config is confusing, rename the argument to 'mac_cfg'. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250709081300.72d87406f8d7.I8b39f01e06ad7791efe718c267cbf367233920a3@changeid
2025-07-09wifi: iwlwifi: match discrete/integrated to fix some namesJohannes Berg
Some device names were wrong because our internal data suggested that discrete Ga devices have B-step RF, when they actually have C-step. However, matching the step for them is bad anyway. Change the code to be able to find the devinfo depending on the device being integrated or discrete. This is only for the names, since the RF config cannot be different for the same RF because it's discrete or integrated, so add a kunit test that ensures both (a) the RF config is the same and (b) the name is different (the latter really only because that's the whole point of having a match on the discrete/integrated bit.) Remove the RF step matching since it's no longer needed now. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250709081300.e048a94659f1.Ie5919c70e9d8e3a28152aaf3cdffd19ed3d4f5c7@changeid
2025-07-09wifi: iwlwifi: remove Intel driver load messageJohannes Berg
There's really not much value in printing something just because the driver loaded, remove that message. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250709081300.fe33c279a45d.I16a9cbcfce92a1d1b8b26a20ea9911e8a5a0b1cc@changeid
2025-07-09wifi: iwlwifi: mvm/mld: make PHC messages debug messagesJohannes Berg
These have no real value for normal users, print them as debug messages instead. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250709081300.bd2df0705d89.Ic6f042588ef17719653c077ff89a8b9149c22f92@changeid
2025-07-09wifi: iwlwifi: trans: remove iwl_trans_initMiri Korenblit
We needed it for setting up trans parameters that could change later in the probe flow. This is no longer true, now we know all the parameters before we allocate the trans, so we can just send the right parameters to iwl_trans_alloc and have all initializations done there. Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> .../net/wireless/intel/iwlwifi/iwl-trans.c | 25 ++-------- .../net/wireless/intel/iwlwifi/iwl-trans.h | 8 +-- .../intel/iwlwifi/pcie/gen1_2/trans.c | 50 ++++++++++++------- 3 files changed, 41 insertions(+), 42 deletions(-) Link: https://patch.msgid.link/20250709081300.9602fde079de.Iaede14c91095560852f9b441f1e16546b0a06bdd@changeid
2025-07-09wifi: iwlwifi: pcie move common probe logicMiri Korenblit
Move the parts of the probe that are not gen specific to the common probe function. Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250709081300.91aee0874e79.Ib762365933d4dd4fc0bf07833226cd7118dee0a1@changeid
2025-07-09wifi: iwlwifi: bump FW API to 102 for BZ/SC/DRMiri Korenblit
Start supporting FW API version 102 on those devices. Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250709081300.da98a7b6be42.I77150bbf55eb160dbe0ef75c3e28afc053f27ec3@changeid
2025-07-09wifi: iwlwifi: pcie: Move txcmd size/align calculation to callersYedidya Benshimol
Refactor iwl_trans_init to accept txcmd_size and txcmd_align as parameters instead of calculating them internally. Signed-off-by: Yedidya Benshimol <yedidya.ben.shimol@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250709081300.237285d81461.I3552860dd062a523606c8a5c85c9a6f0d4f04262@changeid
2025-07-09wifi: iwlwifi: pcie move gen1_2 probe to gen1_2/trans.cYedidya Benshimol
In the process of splitting the transport's different generations, move gen1_2's probe flow and relevant helper functions to the gen1_2 subfolder Signed-off-by: Yedidya Benshimol <yedidya.ben.shimol@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250709081300.29b909144e1a.Idaa77eddd6650cf6f113833d2fbc8d3ef08cfd8f@changeid
2025-07-09wifi: iwlwifi: use PNVM data embedded in .ucode filesJohannes Berg
Given compatibility issues with external PNVM data that doesn't match the firmware it was designed with/for, future firmware releases will include the PNVM data in the firmware files directly, avoiding those mismatch issues. Make the driver load and use that embedded PNVM data in preference of external files, falling back to the external file if it isn't present. Co-developed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250709081300.c843f77aa2d3.I7200f8dd40ef82aff1f5574fdd3966913cda592c@changeid
2025-07-09wifi: iwlwifi: Add an helper function for polling bitsRotem Kerem
Add iwl_poll_bits helper to simplify calls to iwl_poll_bit for the case when the bits and mask arguments are equal. Signed-off-by: Rotem Kerem <rotem.kerem@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250709081300.6bbc4bccc597.Ic7a10a7f8a9a32a9a9feecaf6e3a48fa37479f2d@changeid
2025-07-03wifi: iwlwifi: Fix error code in iwl_op_mode_dvm_start()Dan Carpenter
Preserve the error code if iwl_setup_deferred_work() fails. The current code returns ERR_PTR(0) (which is NULL) on this path. I believe the missing error code potentially leads to a use after free involving debugfs. Fixes: 90a0d9f33996 ("iwlwifi: Add missing check for alloc_ordered_workqueue") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://patch.msgid.link/a7a1cd2c-ce01-461a-9afd-dbe535f8df01@sabinyo.mountain Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
2025-06-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-6.16-rc4). Conflicts: Documentation/netlink/specs/mptcp_pm.yaml 9e6dd4c256d0 ("netlink: specs: mptcp: replace underscores with dashes in names") ec362192aa9e ("netlink: specs: fix up indentation errors") https://lore.kernel.org/20250626122205.389c2cd4@canb.auug.org.au Adjacent changes: Documentation/netlink/specs/fou.yaml 791a9ed0a40d ("netlink: specs: fou: replace underscores with dashes in names") 880d43ca9aa4 ("netlink: specs: clean up spaces in brackets") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-26Merge tag 'net-6.16-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Including fixes from bluetooth and wireless. Current release - regressions: - bridge: fix use-after-free during router port configuration Current release - new code bugs: - eth: wangxun: fix the creation of page_pool Previous releases - regressions: - netpoll: initialize UDP checksum field before checksumming - wifi: mac80211: finish link init before RCU publish - bluetooth: fix use-after-free in vhci_flush() - eth: - ionic: fix DMA mapping test - bnxt: properly flush XDP redirect lists Previous releases - always broken: - netlink: specs: enforce strict naming of properties - unix: don't leave consecutive consumed OOB skbs. - vsock: fix linux/vm_sockets.h userspace compilation errors - selftests: fix TCP packet checksum" * tag 'net-6.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (38 commits) net: libwx: fix the creation of page_pool net: selftests: fix TCP packet checksum atm: Release atm_dev_mutex after removing procfs in atm_dev_deregister(). netlink: specs: enforce strict naming of properties netlink: specs: tc: replace underscores with dashes in names netlink: specs: rt-link: replace underscores with dashes in names netlink: specs: mptcp: replace underscores with dashes in names netlink: specs: ovs_flow: replace underscores with dashes in names netlink: specs: devlink: replace underscores with dashes in names netlink: specs: dpll: replace underscores with dashes in names netlink: specs: ethtool: replace underscores with dashes in names netlink: specs: fou: replace underscores with dashes in names netlink: specs: nfsd: replace underscores with dashes in names net: enetc: Correct endianness handling in _enetc_rd_reg64 atm: idt77252: Add missing `dma_map_error()` bnxt: properly flush XDP redirect lists vsock/uapi: fix linux/vm_sockets.h userspace compilation errors wifi: mac80211: finish link init before RCU publish wifi: iwlwifi: mvm: assume '1' as the default mac_config_cmd version selftest: af_unix: Add tests for -ECONNRESET. ...
2025-06-26docs: net: sysctl documentation cleanupAbdelrahman Fekry
Add missing default values for networking sysctl parameters and standardize documentation: - Use "0 (disabled)" / "1 (enabled)" format consistently - Fix cipso_rbm_struct_valid -> cipso_rbm_strictvalid typo - Convert fwmark_reflect description to enabled/disabled terminology - Document possible values for tcp_autocorking Also addresses formatting inconsistencies in touched parameters. Signed-off-by: Abdelrahman Fekry <abdelrahmanfekry375@gmail.com> Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com> Link: https://patch.msgid.link/20250624150923.40590-1-abdelrahmanfekry375@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-26Merge branch 'eth-fbnic-trivial-code-tweaks'Paolo Abeni
Jakub Kicinski says: ==================== eth: fbnic: trivial code tweaks A handful of code cleanups. No functional changes. ==================== Link: https://patch.msgid.link/20250624142834.3275164-1-kuba@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-26eth: fbnic: rename fbnic_fw_clear_cmpl to fbnic_mbx_clear_cmplJakub Kicinski
fbnic_fw_clear_cmpl() does the inverse of fbnic_mbx_set_cmpl(). It removes the completion from the mailbox table. It also calls fbnic_mbx_set_cmpl_slot() internally. It should have fbnic_mbx prefix, not fbnic_fw. I'm not very clear on what the distinction is between the two prefixes but the matching "set" and "clear" functions should use the same prefix. While at it move the "clear" function closer to the "set". Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250624142834.3275164-6-kuba@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-26eth: fbnic: sort includesJakub Kicinski
Make sure includes are in alphabetical order. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250624142834.3275164-5-kuba@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-26eth: fbnic: realign whitespaceJakub Kicinski
Relign various whitespace things. Some of it is spaces which should be tabs and some is making sure the values are actually correctly aligned to "columns" with 8 space tabs. Whitespace changes only. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250624142834.3275164-4-kuba@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-26eth: fbnic: fix stampinn typo in a commentJakub Kicinski
Fix a typo: stampinn -> stamping Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev> Link: https://patch.msgid.link/20250624142834.3275164-3-kuba@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-26eth: fbnic: remove duplicate FBNIC_MAX_.XQS macrosJakub Kicinski
Somehow we ended up with two copies of FBNIC_MAX_[TR]XQS in fbnic_txrx.h. Remove the one mixed with the struct declarations. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250624142834.3275164-2-kuba@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-26Merge branch 'follow-up-to-rgmii-mode-clarification-am65-cpsw-fix-checkpatch'Paolo Abeni
Matthias Schiffer says: ==================== Follow-up to RGMII mode clarification: am65-cpsw fix + checkpatch Following previous discussion [1] and the documentation update by Andrew [2]: Fix up the mode to account for the fixed TX delay on the AM65 CPSW Ethernet controllers, similar to the way the icssg-prueth does it. For backwards compatibility, the "impossible" modes that claim to have a delay on the PCB are still accepted, but trigger a warning message. As Andrew suggested, I have also added a checkpatch check that requires a comment for any RGMII mode that is not "rgmii-id". No Device Trees are updated to avoid the warning for now, to give other projects syncing the Linux Device Trees some time to fix their drivers as well. I intend to submit an equivalent change for U-Boot's am65-cpsw-nuss driver as soon as the changes are accepted for Linux. [1] https://lore.kernel.org/lkml/d25b1447-c28b-4998-b238-92672434dc28@lunn.ch/ [2] https://lore.kernel.org/all/20250430-v6-15-rc3-net-rgmii-delays-v2-1-099ae651d5e5@lunn.ch/ commit c360eb0c3ccb ("dt-bindings: net: ethernet-controller: Add informative text about RGMII delays") v1: https://lore.kernel.org/all/cover.1744710099.git.matthias.schiffer@ew.tq-group.com/ ==================== Link: https://patch.msgid.link/cover.1750756583.git.matthias.schiffer@ew.tq-group.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-26checkpatch: check for comment explaining rgmii(|-rxid|-txid) PHY modesMatthias Schiffer
Historically, the RGMII PHY modes specified in Device Trees have been used inconsistently, often referring to the usage of delays on the PHY side rather than describing the board; many drivers still implement this incorrectly. Require a comment in Devices Trees using these modes (usually mentioning that the delay is realized on the PCB), so we can avoid adding more incorrect uses (or will at least notice which drivers still need to be fixed). Suggested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/bc112b8aa510cf9df9ab33178d122f234d0aebf7.1750756583.git.matthias.schiffer@ew.tq-group.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-26net: ethernet: ti: am65-cpsw: fixup PHY mode for fixed RGMII TX delayMatthias Schiffer
All am65-cpsw controllers have a fixed TX delay, so the PHY interface mode must be fixed up to account for this. Modes that claim to a delay on the PCB can't actually work. Warn people to update their Device Trees if one of the unsupported modes is specified. Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com> Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Siddharth Vadapalli <s-vadapalli@ti.com> Link: https://patch.msgid.link/9b3fb1fbf719bef30702192155c6413cd5de5dcf.1750756583.git.matthias.schiffer@ew.tq-group.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-26dt-bindings: net: ti: k3-am654-cpsw-nuss: update phy-mode in exampleMatthias Schiffer
k3-am65-cpsw-nuss controllers have a fixed internal TX delay, so RXID mode is not actually possible and will result in a warning from the driver going forward. Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com> Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Rob Herring (Arm) <robh@kernel.org> Reviewed-by: Siddharth Vadapalli <s-vadapalli@ti.com> Link: https://patch.msgid.link/f9b5e84fcaf565506ed86cf1838444c2bc47334f.1750756583.git.matthias.schiffer@ew.tq-group.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-26net: libwx: fix the creation of page_poolJiawen Wu
'rx_ring->size' means the count of ring descriptors multiplied by the size of one descriptor. When increasing the count of ring descriptors, it may exceed the limit of pool size. [ 864.209610] page_pool_create_percpu() gave up with errno -7 [ 864.209613] txgbe 0000:11:00.0: Page pool creation failed: -7 Fix to set the pool_size to the count of ring descriptors. Fixes: 850b971110b2 ("net: libwx: Allocate Rx and Tx resources") Cc: stable@vger.kernel.org Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Mina Almasry <almasrymina@google.com> Link: https://patch.msgid.link/434C72BFB40E350A+20250625023924.21821-1-jiawenwu@trustnetic.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-26net: selftests: fix TCP packet checksumJakub Kicinski
The length in the pseudo header should be the length of the L3 payload AKA the L4 header+payload. The selftest code builds the packet from the lower layers up, so all the headers are pushed already when it constructs L4. We need to subtract the lower layer headers from skb->len. Fixes: 3e1e58d64c3d ("net: add generic selftest support") Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Gerhard Engleder <gerhard@engleder-embedded.com> Reported-by: Oleksij Rempel <o.rempel@pengutronix.de> Tested-by: Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de> Link: https://patch.msgid.link/20250624183258.3377740-1-kuba@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-25Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfLinus Torvalds
Pull bpf fixes from Alexei Starovoitov: - Fix use-after-free in libbpf when map is resized (Adin Scannell) - Fix verifier assumptions about 2nd argument of bpf_sysctl_get_name (Jerome Marchand) - Fix verifier assumption of nullness of d_inode in dentry (Song Liu) - Fix global starvation of LRU map (Willem de Bruijn) - Fix potential NULL dereference in btf_dump__free (Yuan Chen) * tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: selftests/bpf: adapt one more case in test_lru_map to the new target_free libbpf: Fix possible use-after-free for externs selftests/bpf: Convert test_sysctl to prog_tests bpf: Specify access type of bpf_sysctl_get_name args libbpf: Fix null pointer dereference in btf_dump__free on allocation failure bpf: Adjust free target to avoid global starvation of LRU map bpf: Mark dentry->d_inode as trusted_or_null
2025-06-25Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds
Pull mount fixes from Al Viro: "Several mount-related fixes" * tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: userns and mnt_idmap leak in open_tree_attr(2) attach_recursive_mnt(): do not lock the covering tree when sliding something under it replace collect_mounts()/drop_collected_mounts() with a safer variant
2025-06-25net: phy: realtek: add error handling to rtl8211f_get_wolDaniel Braunwarth
We should check if the WOL settings was successfully read from the PHY. In case this fails we cannot just use the error code and proceed. Signed-off-by: Daniel Braunwarth <daniel.braunwarth@kuka.com> Reported-by: Jon Hunter <jonathanh@nvidia.com> Closes: https://lore.kernel.org/baaa083b-9a69-460f-ab35-2a7cb3246ffd@nvidia.com Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20250624-realtek_fixes-v1-1-02a0b7c369bc@kuka.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-25net: Reoder rxq_idx check in __net_mp_open_rxq()Yue Haibing
array_index_nospec() clamp the rxq_idx within the range of [0, dev->real_num_rx_queues), move the check before it. Signed-off-by: Yue Haibing <yuehaibing@huawei.com> Reviewed-by: Mina Almasry <almasrymina@google.com> Link: https://patch.msgid.link/20250624140159.3929503-1-yuehaibing@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-25net: Remove unnecessary NULL check for lwtunnel_fill_encap()Yue Haibing
lwtunnel_fill_encap() has NULL check and return 0, so no need to check before call it. Signed-off-by: Yue Haibing <yuehaibing@huawei.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20250624140015.3929241-1-yuehaibing@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-25atm: Release atm_dev_mutex after removing procfs in atm_dev_deregister().Kuniyuki Iwashima
syzbot reported a warning below during atm_dev_register(). [0] Before creating a new device and procfs/sysfs for it, atm_dev_register() looks up a duplicated device by __atm_dev_lookup(). These operations are done under atm_dev_mutex. However, when removing a device in atm_dev_deregister(), it releases the mutex just after removing the device from the list that __atm_dev_lookup() iterates over. So, there will be a small race window where the device does not exist on the device list but procfs/sysfs are still not removed, triggering the splat. Let's hold the mutex until procfs/sysfs are removed in atm_dev_deregister(). [0]: proc_dir_entry 'atm/atmtcp:0' already registered WARNING: CPU: 0 PID: 5919 at fs/proc/generic.c:377 proc_register+0x455/0x5f0 fs/proc/generic.c:377 Modules linked in: CPU: 0 UID: 0 PID: 5919 Comm: syz-executor284 Not tainted 6.16.0-rc2-syzkaller-00047-g52da431bf03b #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:proc_register+0x455/0x5f0 fs/proc/generic.c:377 Code: 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 a2 01 00 00 48 8b 44 24 10 48 c7 c7 20 c0 c2 8b 48 8b b0 d8 00 00 00 e8 0c 02 1c ff 90 <0f> 0b 90 90 48 c7 c7 80 f2 82 8e e8 0b de 23 09 48 8b 4c 24 28 48 RSP: 0018:ffffc9000466fa30 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817ae248 RDX: ffff888026280000 RSI: ffffffff817ae255 RDI: 0000000000000001 RBP: ffff8880232bed48 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888076ed2140 R13: dffffc0000000000 R14: ffff888078a61340 R15: ffffed100edda444 FS: 00007f38b3b0c6c0(0000) GS:ffff888124753000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f38b3bdf953 CR3: 0000000076d58000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> proc_create_data+0xbe/0x110 fs/proc/generic.c:585 atm_proc_dev_register+0x112/0x1e0 net/atm/proc.c:361 atm_dev_register+0x46d/0x890 net/atm/resources.c:113 atmtcp_create+0x77/0x210 drivers/atm/atmtcp.c:369 atmtcp_attach drivers/atm/atmtcp.c:403 [inline] atmtcp_ioctl+0x2f9/0xd60 drivers/atm/atmtcp.c:464 do_vcc_ioctl+0x12c/0x930 net/atm/ioctl.c:159 sock_do_ioctl+0x115/0x280 net/socket.c:1190 sock_ioctl+0x227/0x6b0 net/socket.c:1311 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __x64_sys_ioctl+0x18b/0x210 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f38b3b74459 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f38b3b0c198 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f38b3bfe318 RCX: 00007f38b3b74459 RDX: 0000000000000000 RSI: 0000000000006180 RDI: 0000000000000005 RBP: 00007f38b3bfe310 R08: 65732f636f72702f R09: 65732f636f72702f R10: 65732f636f72702f R11: 0000000000000246 R12: 00007f38b3bcb0ac R13: 00007f38b3b0c1a0 R14: 0000200000000200 R15: 00007f38b3bcb03b </TASK> Fixes: 64bf69ddff76 ("[ATM]: deregistration removes device from atm_devs list immediately") Reported-by: syzbot+8bd335d2ad3b93e80715@syzkaller.appspotmail.com Closes: https://lore.kernel.org/netdev/685316de.050a0220.216029.0087.GAE@google.com/ Tested-by: syzbot+8bd335d2ad3b93e80715@syzkaller.appspotmail.com Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20250624214505.570679-1-kuni1840@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-25Merge branch 'netlink-specs-enforce-strict-naming-of-properties'Jakub Kicinski
Jakub Kicinski says: ==================== netlink: specs: enforce strict naming of properties I got annoyed once again by the name properties in the ethtool spec which use underscore instead of dash. I previously assumed that there is a lot of such properties in the specs so fixing them now would be near impossible. On a closer look, however, I only found 22 (rough grep suggests we have ~4.8k names in the specs, so bad ones are just 0.46%). Add a regex to the JSON schema to enforce the naming, fix the few bad names. I was hoping we could start enforcing this from newer families, but there's no correlation between the protocol and the number of errors. If anything classic netlink has more recently added specs so it has fewer errors. The regex is just for name properties which will end up visible to the user (in Python or YNL CLI). I left the c-name properties alone, those don't matter as much. C codegen rewrites them, anyway. I'm not updating the spec for genetlink-c. Looks like it has no users, new families use genetlink, all old ones need genetlink-legacy. If these patches are merged I will remove genetlink-c completely in net-next. ==================== Link: https://patch.msgid.link/20250624211002.3475021-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-25netlink: specs: enforce strict naming of propertiesJakub Kicinski
Add a regexp to make sure all names which may end up being visible to the user consist of lower case characters, numbers and dashes. Underscores keep sneaking into the specs, which is not visible in the C code but makes the Python and alike inconsistent. Note that starting with a number is okay, as in C the full name will include the family name. For legacy families we can't enforce the naming in the family name or the multicast group names, as these are part of the binary uAPI of the kernel. For classic netlink we need to allow capital letters in names of struct members. TC has some structs with capitalized members. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250624211002.3475021-11-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-25netlink: specs: tc: replace underscores with dashes in namesJakub Kicinski
We're trying to add a strict regexp for the name format in the spec. Underscores will not be allowed, dashes should be used instead. This makes no difference to C (codegen, if used, replaces special chars in names) but it gives more uniform naming in Python. Fixes: a1bcfde83669 ("doc/netlink/specs: Add a spec for tc") Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250624211002.3475021-10-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-25netlink: specs: rt-link: replace underscores with dashes in namesJakub Kicinski
We're trying to add a strict regexp for the name format in the spec. Underscores will not be allowed, dashes should be used instead. This makes no difference to C (codegen, if used, replaces special chars in names) but it gives more uniform naming in Python. Fixes: b2f63d904e72 ("doc/netlink: Add spec for rt link messages") Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250624211002.3475021-9-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-25netlink: specs: mptcp: replace underscores with dashes in namesJakub Kicinski
We're trying to add a strict regexp for the name format in the spec. Underscores will not be allowed, dashes should be used instead. This makes no difference to C (codegen, if used, replaces special chars in names) but it gives more uniform naming in Python. Fixes: bc8aeb2045e2 ("Documentation: netlink: add a YAML spec for mptcp") Reviewed-by: Davide Caratti <dcaratti@redhat.com> Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250624211002.3475021-8-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-25netlink: specs: ovs_flow: replace underscores with dashes in namesJakub Kicinski
We're trying to add a strict regexp for the name format in the spec. Underscores will not be allowed, dashes should be used instead. This makes no difference to C (codegen, if used, replaces special chars in names) but it gives more uniform naming in Python. Fixes: 93b230b549bc ("netlink: specs: add ynl spec for ovs_flow") Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Reviewed-by: Ilya Maximets <i.maximets@ovn.org> Reviewed-by: Eelco Chaudron <echaudro@redhat.com> Link: https://patch.msgid.link/20250624211002.3475021-7-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-25netlink: specs: devlink: replace underscores with dashes in namesJakub Kicinski
We're trying to add a strict regexp for the name format in the spec. Underscores will not be allowed, dashes should be used instead. This makes no difference to C (codegen, if used, replaces special chars in names) but it gives more uniform naming in Python. Fixes: 429ac6211494 ("devlink: define enum for attr types of dynamic attributes") Fixes: f2f9dd164db0 ("netlink: specs: devlink: add the remaining command to generate complete split_ops") Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250624211002.3475021-6-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-25netlink: specs: dpll: replace underscores with dashes in namesJakub Kicinski
We're trying to add a strict regexp for the name format in the spec. Underscores will not be allowed, dashes should be used instead. This makes no difference to C (codegen, if used, replaces special chars in names) but it gives more uniform naming in Python. Fixes: 3badff3a25d8 ("dpll: spec: Add Netlink spec in YAML") Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev> Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250624211002.3475021-5-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-25netlink: specs: ethtool: replace underscores with dashes in namesJakub Kicinski
We're trying to add a strict regexp for the name format in the spec. Underscores will not be allowed, dashes should be used instead. This makes no difference to C (codegen replaces special chars in names) but gives more uniform naming in Python. Fixes: 13e59344fb9d ("net: ethtool: add support for symmetric-xor RSS hash") Fixes: 46fb3ba95b93 ("ethtool: Add an interface for flashing transceiver modules' firmware") Reviewed-by: Kory Maincent <kory.maincent@bootlin.com> Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250624211002.3475021-4-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-25netlink: specs: fou: replace underscores with dashes in namesJakub Kicinski
We're trying to add a strict regexp for the name format in the spec. Underscores will not be allowed, dashes should be used instead. This makes no difference to C (codegen, if used, replaces special chars in names) but it gives more uniform naming in Python. Fixes: 4eb77b4ecd3c ("netlink: add a proto specification for FOU") Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Link: https://patch.msgid.link/20250624211002.3475021-3-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-25netlink: specs: nfsd: replace underscores with dashes in namesJakub Kicinski
We're trying to add a strict regexp for the name format in the spec. Underscores will not be allowed, dashes should be used instead. This makes no difference to C (codegen, if used, replaces special chars in names) but it gives more uniform naming in Python. Fixes: 13727f85b49b ("NFSD: introduce netlink stubs") Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Link: https://patch.msgid.link/20250624211002.3475021-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-25uapi: net_dropmon: drop unused is_drop_point_hw macroRubenKelevra
Commit 4ea7e38696c7 ("dropmon: add ability to detect when hardware drops rx packets") introduced is_drop_point_hw, but the symbol was never referenced anywhere in the kernel tree and is currently not used by dropwatch. I could not find, to the best of my abilities, a current out-of-tree user of this macro. The definition also contains a syntax error in its for-loop, so any project that tried to compile against it would fail. Removing the macro therefore eliminates dead code without breaking existing users. Signed-off-by: RubenKelevra <rubenkelevra@gmail.com> Link: https://patch.msgid.link/20250624165711.1188691-1-rubenkelevra@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-25net: enetc: Correct endianness handling in _enetc_rd_reg64Simon Horman
enetc_hw.h provides two versions of _enetc_rd_reg64. One which simply calls ioread64() when available. And another that composes the 64-bit result from ioread32() calls. In the second case the code appears to assume that each ioread32() call returns a little-endian value. However both the shift and logical or used to compose the return value would not work correctly on big endian systems if this were the case. Moreover, this is inconsistent with the first case where the return value of ioread64() is assumed to be in host byte order. It appears that the correct approach is for both versions to treat the return value of ioread*() functions as being in host byte order. And this patch corrects the ioread32()-based version to do so. This is a bug but would only manifest on big endian systems that make use of the ioread32-based implementation of _enetc_rd_reg64. While all in-tree users of this driver are little endian and make use of the ioread64-based implementation of _enetc_rd_reg64. Thus, no in-tree user of this driver is affected by this bug. Flagged by Sparse. Compile tested only. Fixes: 16eb4c85c964 ("enetc: Add ethtool statistics") Closes: https://lore.kernel.org/all/AM9PR04MB850500D3FC24FE23DEFCEA158879A@AM9PR04MB8505.eurprd04.prod.outlook.com/ Signed-off-by: Simon Horman <horms@kernel.org> Reviewed-by: Wei Fang <wei.fang@nxp.com> Link: https://patch.msgid.link/20250624-etnetc-le-v1-1-a73a95d96e4e@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-25lib: packing: Include necessary headersNathan Lynch
packing.h uses ARRAY_SIZE(), BUILD_BUG_ON_MSG(), min(), max(), and sizeof_field() without including the headers where they are defined, potentially causing build failures. Fix this in packing.h and sort the result. Signed-off-by: Nathan Lynch <nathan.lynch@amd.com> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Link: https://patch.msgid.link/20250624-packing-includes-v1-1-c23c81fab508@amd.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>