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2025-07-25Merge branch 'net-add-sockaddr_inet-unified-address-structure'Jakub Kicinski
Kees Cook says: ==================== net: Add sockaddr_inet unified address structure Repeating patch 1, as it has the rationale: There are cases in networking (e.g. wireguard, sctp) where a union is used to provide coverage for either IPv4 or IPv6 network addresses, and they include an embedded "struct sockaddr" as well (for "sa_family" and raw "sa_data" access). The current struct sockaddr contains a flexible array, which means these unions should not be further embedded in other structs because they do not technically have a fixed size (and are generating warnings for the coming -Wflexible-array-not-at-end flag addition). But the future changes to make struct sockaddr a fixed size (i.e. with a 14 byte sa_data member) make the "sa_data" uses with an IPv6 address a potential place for the compiler to get upset about object size mismatches. Therefore, we need a sockaddr that cleanly provides both an sa_family member and an appropriately fixed-sized sa_data member that does not bloat member usage via the potential alternative of sockaddr_storage to cover both IPv4 and IPv6, to avoid unseemly churn in the affected code bases. Introduce sockaddr_inet as a unified structure for holding both IPv4 and IPv6 addresses (i.e. large enough to accommodate sockaddr_in6). The structure is defined in linux/in6.h since its max size is sized based on sockaddr_in6 and provides a more specific alternative to the generic sockaddr_storage for IPv4 with IPv6 address family handling. The "sa_family" member doesn't use the sa_family_t type to avoid needing layer violating header inclusions. Also includes the replacements for wireguard and sctp. ==================== Link: https://patch.msgid.link/20250722171528.work.209-kees@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25sctp: Replace sockaddr with sockaddr_inet in sctp_addr unionKees Cook
As part of the removal of the variably-sized sockaddr for kernel internals, replace struct sockaddr with sockaddr_inet in the sctp_addr union. No binary changes; the union size remains unchanged due to sockaddr_inet matching the size of sockaddr_in6. Signed-off-by: Kees Cook <kees@kernel.org> Link: https://patch.msgid.link/20250722171836.1078436-3-kees@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25wireguard: peer: Replace sockaddr with sockaddr_inetKees Cook
As part of the removal of the variably-sized sockaddr for kernel internals, replace struct sockaddr with sockaddr_inet in the endpoint union. No binary changes; the union size remains unchanged due to sockaddr_inet matching the size of sockaddr_in6. Signed-off-by: Kees Cook <kees@kernel.org> Link: https://patch.msgid.link/20250722171836.1078436-2-kees@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25ipv6: Add sockaddr_inet unified address structureKees Cook
There are cases in networking (e.g. wireguard, sctp) where a union is used to provide coverage for either IPv4 or IPv6 network addresses, and they include an embedded "struct sockaddr" as well (for "sa_family" and raw "sa_data" access). The current struct sockaddr contains a flexible array, which means these unions should not be further embedded in other structs because they do not technically have a fixed size (and are generating warnings for the coming -Wflexible-array-not-at-end flag addition). But the future changes to make struct sockaddr a fixed size (i.e. with a 14 byte sa_data member) make the "sa_data" uses with an IPv6 address a potential place for the compiler to get upset about object size mismatches. Therefore, we need a sockaddr that cleanly provides both an sa_family member and an appropriately fixed-sized sa_data member that does not bloat member usage via the potential alternative of sockaddr_storage to cover both IPv4 and IPv6, to avoid unseemly churn in the affected code bases. Introduce sockaddr_inet as a unified structure for holding both IPv4 and IPv6 addresses (i.e. large enough to accommodate sockaddr_in6). The structure is defined in linux/in6.h since its max size is sized based on sockaddr_in6 and provides a more specific alternative to the generic sockaddr_storage for IPv4 with IPv6 address family handling. The "sa_family" member doesn't use the sa_family_t type to avoid needing layer violating header inclusions. Signed-off-by: Kees Cook <kees@kernel.org> Link: https://patch.msgid.link/20250722171836.1078436-1-kees@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25Merge branch 'net-mlx5e-misc-changes-2025-07-22'Jakub Kicinski
Tariq Toukan says: ==================== net/mlx5e: misc changes 2025-07-22 This series contains misc enhancements to the mlx5e driver. ==================== Link: https://patch.msgid.link/1753194228-333722-1-git-send-email-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25net/mlx5e: Expose TIS via devlink tx reporter diagnoseFeng Liu
Underneath "TIS Config" tag expose TIS diagnostic information. Expose the tisn of each TC under each lag port. $ sudo devlink health diagnose auxiliary/mlx5_core.eth.2/131072 reporter tx ...... TIS Config: lag port: 0 tc: 0 tisn: 0 lag port: 1 tc: 0 tisn: 8 ...... Signed-off-by: Feng Liu <feliu@nvidia.com> Reviewed-by: Aya Levin <ayal@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Link: https://patch.msgid.link/1753194228-333722-3-git-send-email-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25net/mlx5e: Support routed networks during IPsec MACs initializationAlexandre Cassen
Remote IPsec tunnel endpoint may refer to a network segment that is not directly connected to the host. In such a case, IPsec tunnel endpoints are connected to a router and reachable via a routing path. In IPsec packet offload mode, HW is initialized with the MAC address of both IPsec tunnel endpoints. Extend the current IPsec init MACs procedure to resolve nexthop for routed networks. Direct neighbour lookup and probe is still used for directly connected networks and as a fallback mechanism if fib lookup fails. Signed-off-by: Alexandre Cassen <acassen@corp.free.fr> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Link: https://patch.msgid.link/1753194228-333722-2-git-send-email-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25Merge branch 'net-dsa-b53-mmap-add-bcm63xx-ephy-power-control'Jakub Kicinski
Kyle Hendry says: ==================== net: dsa: b53: mmap: Add bcm63xx EPHY power control The gpio controller on some bcm63xx SoCs has a register for controlling functionality of the internal fast ethernet phys. These patches allow the b53 driver to enable/disable phy power. The register also contains reset bits which will be set by a reset driver in another patch series: https://lore.kernel.org/all/20250715234605.36216-1-kylehendrydev@gmail.com/ v1: https://lore.kernel.org/20250716002922.230807-1-kylehendrydev@gmail.com ==================== Link: https://patch.msgid.link/20250724035300.20497-1-kylehendrydev@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25net: dsa: b53: mmap: Implement bcm63xx ephy power controlKyle Hendry
Implement the phy enable/disable calls for b53 mmap, and set the power down registers in the ephy control register appropriately. Signed-off-by: Kyle Hendry <kylehendrydev@gmail.com> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Link: https://patch.msgid.link/20250724035300.20497-8-kylehendrydev@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25net: dsa: b53: mmap: Add register layout for bcm6368Kyle Hendry
Add ephy register info for bcm6368. Signed-off-by: Kyle Hendry <kylehendrydev@gmail.com> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Link: https://patch.msgid.link/20250724035300.20497-7-kylehendrydev@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25net: dsa: b53: mmap: Add register layout for bcm6318Kyle Hendry
Add ephy register info for bcm6318, which also applies to bcm6328 and bcm6362. Signed-off-by: Kyle Hendry <kylehendrydev@gmail.com> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Link: https://patch.msgid.link/20250724035300.20497-6-kylehendrydev@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25net: dsa: b53: mmap: Add syscon reference and register layout for bcm63268Kyle Hendry
On bcm63xx SoCs there are registers that control the PHYs in the GPIO controller. Allow the b53 driver to access them by passing in the syscon through the device tree. Add a structure to describe the ephy control register and add register info for bcm63268. Signed-off-by: Kyle Hendry <kylehendrydev@gmail.com> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Link: https://patch.msgid.link/20250724035300.20497-5-kylehendrydev@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25net: dsa: b53: Define chip IDs for more bcm63xx SoCsKyle Hendry
Add defines for bcm6318, bcm6328, bcm6362, bcm6368 chip IDs, update tables and switch init. Signed-off-by: Kyle Hendry <kylehendrydev@gmail.com> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Link: https://patch.msgid.link/20250724035300.20497-4-kylehendrydev@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25dt-bindings: net: dsa: b53: Document brcm,gpio-ctrl propertyKyle Hendry
Add description for bcm63xx gpio-ctrl phandle which allows access to registers that control phy functionality. Signed-off-by: Kyle Hendry <kylehendrydev@gmail.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20250724035300.20497-3-kylehendrydev@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25net: dsa: b53: Add phy_enable(), phy_disable() methodsKyle Hendry
Add phy enable/disable to b53 ops to be called when enabling/disabling ports. Signed-off-by: Kyle Hendry <kylehendrydev@gmail.com> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Link: https://patch.msgid.link/20250724035300.20497-2-kylehendrydev@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25netpoll: Remove unused fields from inet_addr unionBreno Leitao
Clean up the inet_addr union by removing unused fields that are redundant with existing members: This simplifies the union structure while maintaining all necessary functionality for both IPv4 and IPv6 address handling. Signed-off-by: Breno Leitao <leitao@debian.org> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250723-netconsole_ref-v3-1-8be9b24e4a99@debian.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25ipv6: add `force_forwarding` sysctl to enable per-interface forwardingGabriel Goller
It is currently impossible to enable ipv6 forwarding on a per-interface basis like in ipv4. To enable forwarding on an ipv6 interface we need to enable it on all interfaces and disable it on the other interfaces using a netfilter rule. This is especially cumbersome if you have lots of interfaces and only want to enable forwarding on a few. According to the sysctl docs [0] the `net.ipv6.conf.all.forwarding` enables forwarding for all interfaces, while the interface-specific `net.ipv6.conf.<interface>.forwarding` configures the interface Host/Router configuration. Introduce a new sysctl flag `force_forwarding`, which can be set on every interface. The ip6_forwarding function will then check if the global forwarding flag OR the force_forwarding flag is active and forward the packet. To preserve backwards-compatibility reset the flag (on all interfaces) to 0 if the net.ipv6.conf.all.forwarding flag is set to 0. Add a short selftest that checks if a packet gets forwarded with and without `force_forwarding`. [0]: https://www.kernel.org/doc/Documentation/networking/ip-sysctl.txt Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: Gabriel Goller <g.goller@proxmox.com> Link: https://patch.msgid.link/20250722081847.132632-1-g.goller@proxmox.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25octeontx2-af: use unsigned int as iterator for unsigned valuesSimon Horman
The local variable i is used to iterate over unsigned values. The lower bound of the loop is set to 0. While the upper bound is cgx->lmac_count, where they lmac_count is an u8. So the theoretical upper bound is 255. As is, GCC can't see this range of values and warns that a formatted string, which includes the %d representation of i, may overflow the buffer provided. GCC 15.1.0 says: .../cgx.c: In function 'cgx_lmac_init': .../cgx.c:1737:49: warning: '%d' directive writing between 1 and 11 bytes into a region of size between 4 and 6 [-Wformat-overflow=] 1737 | sprintf(lmac->name, "cgx_fwi_%d_%d", cgx->cgx_id, i); | ^~ .../cgx.c:1737:37: note: directive argument in the range [-2147483641, 254] 1737 | sprintf(lmac->name, "cgx_fwi_%d_%d", cgx->cgx_id, i); | ^~~~~~~~~~~~~~~ .../cgx.c:1737:17: note: 'sprintf' output between 12 and 24 bytes into a destination of size 16 1737 | sprintf(lmac->name, "cgx_fwi_%d_%d", cgx->cgx_id, i); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Empirically, changing the type of i from (signed) int to unsigned int addresses this problem. I assume by allowing GCC to see the range of values described above. Also update the format specifiers for the integer values in the string in question from %d to %u. This seems appropriate as they are now both unsigned. No functional change intended. Compile tested only. Signed-off-by: Simon Horman <horms@kernel.org> Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev> Link: https://patch.msgid.link/20250724-octeontx2-af-unsigned-v1-1-c745c106e06f@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25Merge branch 'mptcp-track-more-fallback-cases'Jakub Kicinski
Matthieu Baerts says: ==================== mptcp: track more fallback cases This series has two patches linked to fallback to TCP: - Patch 1: additional MIB counters for remaining error code paths around fallback - Patch 2: remove dedicated pr_debug() linked to fallback now that everything should be covered by dedicated MIB counters. ==================== Link: https://patch.msgid.link/20250723-net-next-mptcp-track-fallbacks-v1-0-a83cce08f2d5@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25mptcp: remove pr_fallback()Paolo Abeni
We can now track fully the fallback status of a given connection via the relevant mibs, the mentioned helper is redundant. Remove it completely. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250723-net-next-mptcp-track-fallbacks-v1-2-a83cce08f2d5@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25mptcp: track fallbacks accurately via mibsPaolo Abeni
Add the mibs required to cover the few possible fallback causes still lacking suck info. Move the relevant mib increment into the fallback helper, so that no eventual future fallback operation will miss a paired mib increment. Additionally track failed fallback via its own mib, such mib is incremented only when a fallback mandated by the protocol fails - due to racing subflow creation. While at the above, rename an existing helper to reduce long lines problems all along. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250723-net-next-mptcp-track-fallbacks-v1-1-a83cce08f2d5@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25selftests: net: Skip test if IPv6 is not configuredBreno Leitao
Extend the `check_for_dependencies()` function in `lib_netcons.sh` to check whether IPv6 is enabled by verifying the existence of `/proc/net/if_inet6`. Having IPv6 is a now a dependency of netconsole tests. If the file does not exist, the script will skip the test with an appropriate message suggesting to verify if `CONFIG_IPV6` is enabled. This prevents the test to misbehave if IPv6 is not configured. Signed-off-by: Breno Leitao <leitao@debian.org> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250723-netcons_test_ipv6-v1-1-41c9092f93f9@debian.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25usbnet: Set duplex status to unknown in the absence of MIIYi Cong
Currently, USB CDC devices that do not use MDIO to get link status have their duplex mode set to half-duplex by default. However, since the CDC specification does not define a duplex status, this can be misleading. This patch changes the default to DUPLEX_UNKNOWN in the absence of MII, which more accurately reflects the state of the link and avoids implying an incorrect or error state. Link: https://lore.kernel.org/all/20250723152151.70a8034b@kernel.org/ Signed-off-by: Yi Cong <yicong@kylinos.cn> Acked-by: Oliver Neukum <oneukum@suse.com> Link: https://patch.msgid.link/20250724013133.1645142-1-yicongsrfy@163.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25selftests: rtnetlink: add macsec and vlan nesting testStanislav Fomichev
Add reproducer for [0] with a dummy device. 0: https://lore.kernel.org/netdev/2aff4342b0f5b1539c02ffd8df4c7e58dd9746e7.camel@nvidia.com/ Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Simon Horman <horms@kernel.org> Signed-off-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250723224715.1341121-2-sdf@fomichev.me Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25macsec: set IFF_UNICAST_FLT priv flagStanislav Fomichev
Cosmin reports the following locking issue: # BUG: sleeping function called from invalid context at kernel/locking/mutex.c:275 # dump_stack_lvl+0x4f/0x60 # __might_resched+0xeb/0x140 # mutex_lock+0x1a/0x40 # dev_set_promiscuity+0x26/0x90 # __dev_set_promiscuity+0x85/0x170 # __dev_set_rx_mode+0x69/0xa0 # dev_uc_add+0x6d/0x80 # vlan_dev_open+0x5f/0x120 [8021q] # __dev_open+0x10c/0x2a0 # __dev_change_flags+0x1a4/0x210 # netif_change_flags+0x22/0x60 # do_setlink.isra.0+0xdb0/0x10f0 # rtnl_newlink+0x797/0xb00 # rtnetlink_rcv_msg+0x1cb/0x3f0 # netlink_rcv_skb+0x53/0x100 # netlink_unicast+0x273/0x3b0 # netlink_sendmsg+0x1f2/0x430 Which is similar to recent syzkaller reports in [0] and [1] and triggers because macsec does not advertise IFF_UNICAST_FLT although it has proper ndo_set_rx_mode callback that takes care of pushing uc/mc addresses down to the real device. In general, dev_uc_add call path is problematic for stacking non-IFF_UNICAST_FLT because we might grab netdev instance lock under addr_list_lock spinlock, so this is not a systemic fix. 0: https://lore.kernel.org/netdev/686d55b4.050a0220.1ffab7.0014.GAE@google.com 1: https://lore.kernel.org/netdev/68712acf.a00a0220.26a83e.0051.GAE@google.com/ Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Simon Horman <horms@kernel.org> Link: https://lore.kernel.org/netdev/2aff4342b0f5b1539c02ffd8df4c7e58dd9746e7.camel@nvidia.com Fixes: 7e4d784f5810 ("net: hold netdev instance lock during rtnetlink operations") Reported-by: Cosmin Ratiu <cratiu@nvidia.com> Tested-by: Cosmin Ratiu <cratiu@nvidia.com> Signed-off-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250723224715.1341121-1-sdf@fomichev.me Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25net: hibmcge: support for statistics of reset failuresJijie Shao
Add a statistical item to count the number of reset failures. This statistical item can be queried using ethtool -S or reported through diagnose information. Signed-off-by: Jijie Shao <shaojijie@huawei.com> Link: https://patch.msgid.link/20250723074826.2756135-1-shaojijie@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-25net: Fix typosBjorn Helgaas
Fix typos in comments and error messages. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: David Arinzon <darinzon@amazon.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250723201528.2908218-1-helgaas@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-24Merge branch 'selftests-drv-net-fix-and-improve-command-requirement-checking'Jakub Kicinski
Gal Pressman says: ==================== selftests: drv-net: Fix and improve command requirement checking This series fixes remote command checking and cleans up command requirement calls across tests. The first patch fixes require_cmd() incorrectly checking commands locally even when remote=True was specified due to a missing host parameter. The second patch makes require_cmd() usage explicit about local/remote requirements, avoiding unnecessary test failures and consolidating duplicate calls. ==================== Link: https://patch.msgid.link/20250723135454.649342-1-gal@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-24selftests: drv-net: Make command requirements explicitGal Pressman
Make require_cmd() calls explicit about whether commands are needed locally, remotely, or both. Since require_cmd() defaults to local=True, tests should explicitly set local=False when commands are only needed remotely. - socat: Set local=False since it's only needed on remote hosts. - iperf3: Use single call with both local=True and remote=True since it's needed on both hosts. This avoids unnecessary test failures when commands are missing locally but available remotely where actually needed, and consolidates a duplicate require_cmd() call into single call that checks both hosts. Fixes: 0d0f4174f6c8 ("selftests: drv-net: add a simple TSO test") Fixes: f1e68a1a4a40 ("selftests: drv-net: add require_XYZ() helpers for validating env") Fixes: c76bab22e920 ("selftests: drv-net: rss_input_xfrm: Check test prerequisites before running") Reviewed-by: Nimrod Oren <noren@nvidia.com> Signed-off-by: Gal Pressman <gal@nvidia.com> Link: https://patch.msgid.link/20250723135454.649342-3-gal@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-24selftests: drv-net: Fix remote command checking in require_cmd()Gal Pressman
The require_cmd() method was checking for command availability locally even when remote=True was specified, due to a missing host parameter. Fix by passing host=self.remote when checking remote command availability, ensuring commands are verified on the correct host. Fixes: f1e68a1a4a40 ("selftests: drv-net: add require_XYZ() helpers for validating env") Reviewed-by: Nimrod Oren <noren@nvidia.com> Signed-off-by: Gal Pressman <gal@nvidia.com> Link: https://patch.msgid.link/20250723135454.649342-2-gal@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-24net/mlx5: Fix build -Wframe-larger-than warningsZhu Yanjun
When building, the following warnings will appear. " pci_irq.c: In function ‘mlx5_ctrl_irq_request’: pci_irq.c:494:1: warning: the frame size of 1040 bytes is larger than 1024 bytes [-Wframe-larger-than=] pci_irq.c: In function ‘mlx5_irq_request_vector’: pci_irq.c:561:1: warning: the frame size of 1040 bytes is larger than 1024 bytes [-Wframe-larger-than=] eq.c: In function ‘comp_irq_request_sf’: eq.c:897:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] irq_affinity.c: In function ‘irq_pool_request_irq’: irq_affinity.c:74:1: warning: the frame size of 1048 bytes is larger than 1024 bytes [-Wframe-larger-than=] " These warnings indicate that the stack frame size exceeds 1024 bytes in these functions. To resolve this, instead of allocating large memory buffers on the stack, it is better to use kvzalloc to allocate memory dynamically on the heap. This approach reduces stack usage and eliminates these frame size warnings. Acked-by: Junxian Huang <huangjunxian6@hisilicon.com> Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev> Reviewed-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/20250722212023.244296-1-yanjun.zhu@linux.dev Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-24Merge branch 'use-enum-to-represent-the-napi-threaded-state'Jakub Kicinski
Samiullah Khawaja says: ==================== Use enum to represent the NAPI threaded state Instead of using 0/1 to represent the NAPI threaded states use enum (disabled/enabled) to represent the NAPI threaded states. This patch series is a subset of patches from the following patch series: https://lore.kernel.org/20250718232052.1266188-1-skhawaja@google.com The first 3 patches are being sent separately as per the feedback to replace the usage of 0/1 as NAPI threaded states with enum. See: https://lore.kernel.org/20250721164856.1d2208e4@kernel.org ==================== Link: https://patch.msgid.link/20250723013031.2911384-1-skhawaja@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-24net: define an enum for the napi threaded stateSamiullah Khawaja
Instead of using '0' and '1' for napi threaded state use an enum with 'disabled' and 'enabled' states. Tested: ./tools/testing/selftests/net/nl_netdev.py TAP version 13 1..7 ok 1 nl_netdev.empty_check ok 2 nl_netdev.lo_check ok 3 nl_netdev.page_pool_check ok 4 nl_netdev.napi_list_check ok 5 nl_netdev.dev_set_threaded ok 6 nl_netdev.napi_set_threaded ok 7 nl_netdev.nsim_rxq_reset_down # Totals: pass:7 fail:0 xfail:0 xpass:0 skip:0 error:0 Signed-off-by: Samiullah Khawaja <skhawaja@google.com> Link: https://patch.msgid.link/20250723013031.2911384-4-skhawaja@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-24net: Use netif_threaded_enable instead of netif_set_threaded in driversSamiullah Khawaja
Prepare for adding an enum type for NAPI threaded states by adding netif_threaded_enable API. De-export the existing netif_set_threaded API and only use it internally. Update existing drivers to use netif_threaded_enable instead of the de-exported netif_set_threaded. Note that dev_set_threaded used by mt76 debugfs file is unchanged. Signed-off-by: Samiullah Khawaja <skhawaja@google.com> Link: https://patch.msgid.link/20250723013031.2911384-3-skhawaja@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-24net: Create separate gro_flush_normal functionSamiullah Khawaja
Move multiple copies of same code snippet doing `gro_flush` and `gro_normal_list` into separate helper function. Signed-off-by: Samiullah Khawaja <skhawaja@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250723013031.2911384-2-skhawaja@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-24Merge tag 'for-net-next-2025-07-23' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next Luiz Augusto von Dentz says: ==================== bluetooth-next pull request for net-next: core: - hci_sync: fix double free in 'hci_discovery_filter_clear()' - hci_event: Mask data status from LE ext adv reports - hci_devcd_dump: fix out-of-bounds via dev_coredumpv - ISO: add socket option to report packet seqnum via CMSG - hci_event: Add support for handling LE BIG Sync Lost event - ISO: Support SCM_TIMESTAMPING for ISO TS - hci_core: Add PA_LINK to distinguish BIG sync and PA sync connections - hci_sock: Reset cookie to zero in hci_sock_free_cookie() drivers: - btusb: Add new VID/PID 0489/e14e for MT7925 - btusb: Add a new VID/PID 2c7c/7009 for MT7925 - btusb: Add RTL8852BE device 0x13d3:0x3618 - btusb: Add support for variant of RTL8851BE (USB ID 13d3:3601) - btusb: Add USB ID 3625:010b for TP-LINK Archer TX10UB Nano - btusb: QCA: Support downloading custom-made firmwares - btusb: Add one more ID 0x28de:0x1401 for Qualcomm WCN6855 - nxp: add support for supply and reset - btnxpuart: Add support for 4M baudrate - btnxpuart: Correct the Independent Reset handling after FW dump - btnxpuart: Add uevents for FW dump and FW download complete - btintel: Define a macro for Intel Reset vendor command - btintel_pcie: Support Function level reset - btintel_pcie: Add support for device 0x4d76 - btintel_pcie: Make driver wait for alive interrupt - btintel_pcie: Fix Alive Context State Handling - hci_qca: Enable ISO data packet RX * tag 'for-net-next-2025-07-23' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next: (42 commits) Bluetooth: Add PA_LINK to distinguish BIG sync and PA sync connections Bluetooth: hci_event: Mask data status from LE ext adv reports Bluetooth: btintel_pcie: Fix Alive Context State Handling Bluetooth: btintel_pcie: Make driver wait for alive interrupt Bluetooth: hci_devcd_dump: fix out-of-bounds via dev_coredumpv Bluetooth: hci_sync: fix double free in 'hci_discovery_filter_clear()' Bluetooth: btusb: Add one more ID 0x28de:0x1401 for Qualcomm WCN6855 Bluetooth: btusb: Sort WCN6855 device IDs by VID and PID Bluetooth: btusb: QCA: Support downloading custom-made firmwares Bluetooth: btnxpuart: Add uevents for FW dump and FW download complete Bluetooth: btnxpuart: Correct the Independent Reset handling after FW dump Bluetooth: ISO: Support SCM_TIMESTAMPING for ISO TS Bluetooth: ISO: add socket option to report packet seqnum via CMSG Bluetooth: btintel: Define a macro for Intel Reset vendor command Bluetooth: Fix typos in comments Bluetooth: RFCOMM: Fix typos in comments Bluetooth: aosp: Fix typo in comment Bluetooth: hci_bcm4377: Fix typo in comment Bluetooth: btrtl: Fix typo in comment Bluetooth: btmtk: Fix typo in log string ... ==================== Link: https://patch.msgid.link/20250723190233.166823-1-luiz.dentz@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-24Merge tag 'for-netdev' of ↵Jakub Kicinski
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next Martin KaFai Lau says: ==================== pull-request: bpf-next 2025-07-24 We've added 3 non-merge commits during the last 3 day(s) which contain a total of 4 files changed, 40 insertions(+), 15 deletions(-). The main changes are: 1) Improved verifier error message for incorrect narrower load from pointer field in ctx, from Paul Chaignon. 2) Disabled migration in nf_hook_run_bpf to address a syzbot report, from Kuniyuki Iwashima. * tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: selftests/bpf: Test invalid narrower ctx load bpf: Reject narrower access to pointer ctx fields bpf: Disable migration in nf_hook_run_bpf(). ==================== Link: https://patch.msgid.link/20250724173306.3578483-1-martin.lau@linux.dev Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-24Merge branch 'tools-ynl-gen-print-setters-for-multi-val-attrs'Jakub Kicinski
Jakub Kicinski says: ==================== tools: ynl-gen: print setters for multi-val attrs ncdevmem seems to manually prepare the queue attributes. This is not ideal, YNL should be providing helpers for this. Make YNL output allocation and setter helpers for multi-val attrs. v1: https://lore.kernel.org/20250722161927.3489203-1-kuba@kernel.org ==================== Link: https://patch.msgid.link/20250723171046.4027470-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-24selftests: drv-net: devmem: use new mattr ynl helpersJakub Kicinski
Use the just-added YNL helpers instead of manually setting "_present" bits in the queue attrs. Compile tested only. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Acked-by: Mina Almasry <almasrymina@google.com> Link: https://patch.msgid.link/20250723171046.4027470-6-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-24tools: ynl-gen: print setters for multi-val attrsJakub Kicinski
For basic types we "flatten" setters. If a request "a" has a simple nest "b" with value "val" we print helpers like: req_set_a_b(struct a *req, int val) { req->_present.a = 1; req->b._present.val = 1; req->b.val = ... } This is not possible for multi-attr because they have to be allocated dynamically by the user. Print "object level" setters so that user preparing the object doesn't have to futz with the presence bits and other YNL internals. Add the ability to pass in the variable name to generated setters. Using "req" here doesn't feel right, while the attr is part of a request it's not the request itself, so it seems cleaner to call it "obj". Example: static inline void netdev_queue_id_set_id(struct netdev_queue_id *obj, __u32 id) { obj->_present.id = 1; obj->id = id; } Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250723171046.4027470-5-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-24tools: ynl-gen: print alloc helper for multi-val attrsJakub Kicinski
In general YNL provides allocation and free helpers for types. For pure nested structs which are used as multi-attr (and therefore have to be allocated dynamically) we already print a free helper as it's needed by free of the containing struct. Add printing of the alloc helper for consistency. The helper takes the number of entries to allocate as an argument, e.g.: static inline struct netdev_queue_id *netdev_queue_id_alloc(unsigned int n) { return calloc(n, sizeof(struct netdev_queue_id)); } Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250723171046.4027470-4-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-24tools: ynl-gen: move free printing to the print_type_full() helperJakub Kicinski
Just to avoid making the main function even more enormous, before adding more things to print move the free printing to a helper which already prints the type. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250723171046.4027470-3-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-24tools: ynl-gen: don't add suffix for pure typesJakub Kicinski
Don't add _req to helper names for pure types. We don't currently print those so it makes no difference to existing codegen. Reviewed-by: Donald Hunter <donald.hunter@gmail.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250723171046.4027470-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-24Merge tag 'wireless-next-2025-07-24' of ↵Jakub Kicinski
https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Johannes Berg says: ==================== Another wireless update: - rtw89: - STA+P2P concurrency - support for USB devices RTL8851BU/RTL8852BU - ath9k: OF support - ath12k: - more EHT/Wi-Fi 7 features - encapsulation/decapsulation offload - iwlwifi: some FIPS interoperability - brcm80211: support SDIO 43751 device - rt2x00: better DT/OF support - cfg80211/mac80211: - improved S1G support - beacon monitor for MLO * tag 'wireless-next-2025-07-24' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (199 commits) ssb: use new GPIO line value setter callbacks for the second GPIO chip wifi: Fix typos wifi: brcmsmac: Use str_true_false() helper wifi: brcmfmac: fix EXTSAE WPA3 connection failure due to AUTH TX failure wifi: brcm80211: Remove yet more unused functions wifi: brcm80211: Remove more unused functions wifi: brcm80211: Remove unused functions wifi: iwlwifi: Revert "wifi: iwlwifi: remove support of several iwl_ppag_table_cmd versions" wifi: iwlwifi: check validity of the FW API range wifi: iwlwifi: don't export symbols that we shouldn't wifi: iwlwifi: mld: use spec link id and not FW link id wifi: iwlwifi: mld: decode EOF bit for AMPDUs wifi: iwlwifi: Remove support for rx OMI bandwidth reduction wifi: iwlwifi: stop supporting iwl_omi_send_status_notif ver 1 wifi: iwlwifi: remove SC2F firmware support wifi: iwlwifi: mvm: Remove NAN support wifi: iwlwifi: mld: avoid outdated reorder buffer head_sn wifi: iwlwifi: mvm: avoid outdated reorder buffer head_sn wifi: iwlwifi: disable certain features for fips_enabled wifi: iwlwifi: mld: support channel survey collection for ACS scans ... ==================== Link: https://patch.msgid.link/20250724100349.21564-3-johannes@sipsolutions.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-6.16-rc8). Conflicts: drivers/net/ethernet/microsoft/mana/gdma_main.c 9669ddda18fb ("net: mana: Fix warnings for missing export.h header inclusion") 755391121038 ("net: mana: Allocate MSI-X vectors dynamically") https://lore.kernel.org/20250711130752.23023d98@canb.auug.org.au Adjacent changes: drivers/net/ethernet/ti/icssg/icssg_prueth.h 6e86fb73de0f ("net: ti: icssg-prueth: Fix buffer allocation for ICSSG") ffe8a4909176 ("net: ti: icssg-prueth: Read firmware-names from device tree") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-24Merge tag 'net-6.16-rc8' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Including fixes from can and xfrm. The TI regression notified last week is actually on our net-next tree, it does not affect 6.16. We are investigating a virtio regression which is quite hard to reproduce - currently only our CI sporadically hits it. Hopefully it should not be critical, and I'm not sure that an additional week would be enough to solve it. Current release - fix to a fix: - sched: sch_qfq: avoid sleeping in atomic context in qfq_delete_class Previous releases - regressions: - xfrm: - set transport header to fix UDP GRO handling - delete x->tunnel as we delete x - eth: - mlx5: fix memory leak in cmd_exec() - i40e: when removing VF MAC filters, avoid losing PF-set MAC - gve: fix stuck TX queue for DQ queue format Previous releases - always broken: - can: fix NULL pointer deref of struct can_priv::do_set_mode - eth: - ice: fix a null pointer dereference in ice_copy_and_init_pkg() - ism: fix concurrency management in ism_cmd() - dpaa2: fix device reference count leak in MAC endpoint handling - icssg-prueth: fix buffer allocation for ICSSG Misc: - selftests: mptcp: increase code coverage" * tag 'net-6.16-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (34 commits) net: hns3: default enable tx bounce buffer when smmu enabled net: hns3: fixed vf get max channels bug net: hns3: disable interrupt when ptp init failed net: hns3: fix concurrent setting vlan filter issue s390/ism: fix concurrency management in ism_cmd() selftests: drv-net: wait for iperf client to stop sending MAINTAINERS: Add in6.h to MAINTAINERS selftests: netfilter: tone-down conntrack clash test can: netlink: can_changelink(): fix NULL pointer deref of struct can_priv::do_set_mode net/sched: sch_qfq: Avoid triggering might_sleep in atomic context in qfq_delete_class gve: Fix stuck TX queue for DQ queue format net: appletalk: Fix use-after-free in AARP proxy probe net: bcmasp: Restore programming of TX map vector register selftests: mptcp: connect: also cover checksum selftests: mptcp: connect: also cover alt modes e1000e: ignore uninitialized checksum word on tgp e1000e: disregard NVM checksum on tgp when valid checksum bit is not set ice: Fix a null pointer dereference in ice_copy_and_init_pkg() i40e: When removing VF MAC filters, only check PF-set MAC i40e: report VF tx_dropped with tx_errors instead of tx_discards ...
2025-07-24Merge tag 'ipsec-next-2025-07-23' of ↵Paolo Abeni
git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next Steffen Klassert says: ==================== pull request (net-next): ipsec-next 2025-07-23 1) Optimize to hold device only for the asynchronous decryption, where it is really needed. From Jianbo Liu. 2) Align our inbund SA lookup to RFC 4301. Only SPI and protocol should be used for an inbound SA lookup. From Aakash Kumar S. 3) Skip redundant statistics update for xfrm crypto offload. From Jianbo Liu. Please pull or let me know if there are problems. * tag 'ipsec-next-2025-07-23' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next: xfrm: Skip redundant statistics update for crypto offload xfrm: Duplicate SPI Handling xfrm: hold device only for the asynchronous decryption ==================== Link: https://patch.msgid.link/20250723080402.3439619-1-steffen.klassert@secunet.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-07-24Merge tag 'ipsec-2025-07-23' of ↵Paolo Abeni
git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec Steffen Klassert says: ==================== pull request (net): ipsec 2025-07-23 1) Premption fixes for xfrm_state_find. From Sabrina Dubroca. 2) Initialize offload path also for SW IPsec GRO. This fixes a performance regression on SW IPsec offload. From Leon Romanovsky. 3) Fix IPsec UDP GRO for IKE packets. From Tobias Brunner, 4) Fix transport header setting for IPcomp after decompressing. From Fernando Fernandez Mancera. 5) Fix use-after-free when xfrmi_changelink tries to change collect_md for a xfrm interface. From Eyal Birger . 6) Delete the special IPcomp x->tunnel state along with the state x to avoid refcount problems. From Sabrina Dubroca. Please pull or let me know if there are problems. * tag 'ipsec-2025-07-23' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec: Revert "xfrm: destroy xfrm_state synchronously on net exit path" xfrm: delete x->tunnel as we delete x xfrm: interface: fix use-after-free after changing collect_md xfrm interface xfrm: ipcomp: adjust transport header after decompressing xfrm: Set transport header to fix UDP GRO handling xfrm: always initialize offload path xfrm: state: use a consistent pcpu_id in xfrm_state_find xfrm: state: initialize state_ptrs earlier in xfrm_state_find ==================== Link: https://patch.msgid.link/20250723075417.3432644-1-steffen.klassert@secunet.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-07-24Merge branch 'there-are-some-bugfix-for-the-hns3-ethernet-driver'Paolo Abeni
Jijie Shao says: ==================== There are some bugfix for the HNS3 ethernet driver v1: https://lore.kernel.org/all/20250702130901.2879031-1-shaojijie@huawei.com/ ==================== Link: https://patch.msgid.link/20250722125423.1270673-1-shaojijie@huawei.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-07-24net: hns3: default enable tx bounce buffer when smmu enabledJijie Shao
The SMMU engine on HIP09 chip has a hardware issue. SMMU pagetable prefetch features may prefetch and use a invalid PTE even the PTE is valid at that time. This will cause the device trigger fake pagefaults. The solution is to avoid prefetching by adding a SYNC command when smmu mapping a iova. But the performance of nic has a sharp drop. Then we do this workaround, always enable tx bounce buffer, avoid mapping/unmapping on TX path. This issue only affects HNS3, so we always enable tx bounce buffer when smmu enabled to improve performance. Fixes: 295ba232a8c3 ("net: hns3: add device version to replace pci revision") Signed-off-by: Jian Shen <shenjian15@huawei.com> Signed-off-by: Jijie Shao <shaojijie@huawei.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250722125423.1270673-5-shaojijie@huawei.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>