summaryrefslogtreecommitdiff
path: root/include/net
AgeCommit message (Collapse)Author
2025-03-25af_unix: Sort headers.Kuniyuki Iwashima
This is a prep patch to make the following changes cleaner. No functional change intended. Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Reviewed-by: Joe Damato <jdamato@fastly.com> Link: https://patch.msgid.link/20250318034934.86708-2-kuniyu@amazon.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25tcp: support TCP_RTO_MIN_US for set/getsockopt useJason Xing
Support adjusting/reading RTO MIN for socket level by using set/getsockopt(). This new option has the same effect as TCP_BPF_RTO_MIN, which means it doesn't affect RTAX_RTO_MIN usage (by using ip route...). Considering that bpf option was implemented before this patch, so we need to use a standalone new option for pure tcp set/getsockopt() use. When the socket is created, its icsk_rto_min is set to the default value that is controlled by sysctl_tcp_rto_min_us. Then if application calls setsockopt() with TCP_RTO_MIN_US flag to pass a valid value, then icsk_rto_min will be overridden in jiffies unit. This patch adds WRITE_ONCE/READ_ONCE to avoid data-race around icsk_rto_min. Signed-off-by: Jason Xing <kerneljasonxing@gmail.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://patch.msgid.link/20250317120314.41404-2-kerneljasonxing@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-24net: introduce per netns packet chainsPaolo Abeni
Currently network taps unbound to any interface are linked in the global ptype_all list, affecting the performance in all the network namespaces. Add per netns ptypes chains, so that in the mentioned case only the netns owning the packet socket(s) is affected. While at that drop the global ptype_all list: no in kernel user registers a tap on "any" type without specifying either the target device or the target namespace (and IMHO doing that would not make any sense). Note that this adds a conditional in the fast path (to check for per netns ptype_specific list) and increases the dataset size by a cacheline (owing the per netns lists). Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Eric Dumazet <edumaze@google.com> Link: https://patch.msgid.link/ae405f98875ee87f8150c460ad162de7e466f8a7.1742494826.git.pabeni@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-24Merge tag 'vfs-6.15-rc1.afs' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs afs updates from Christian Brauner: "This contains the work for afs for this cycle: - Fix an occasional hang that's only really encountered when rmmod'ing the kafs module - Remove the "-o autocell" mount option. This is obsolete with the dynamic root and removing it makes the next patch slightly easier - Change how the dynamic root mount is constructed. Currently, the root directory is (de)populated when it is (un)mounted if there are cells already configured and, further, pairs of automount points have to be created/removed each time a cell is added/deleted This is changed so that readdir on the root dir lists all the known cell automount pairs plus the @cell symlinks and the inodes and dentries are constructed by lookup on demand. This simplifies the cell management code - A few improvements to the afs_volume and afs_server tracepoints - Pass trace info into the afs_lookup_cell() function to allow the trace log to indicate the purpose of the lookup - Remove the 'net' parameter from afs_unuse_cell() as it's superfluous - In rxrpc, allow a kernel app (such as kafs) to store a word of information on rxrpc_peer records - Use the information stored on the rxrpc_peer record to point to the afs_server record. This allows the server address lookup to be done away with - Simplify the afs_server ref/activity accounting to make each one self-contained and not garbage collected from the cell management work item - Simplify the afs_cell ref/activity accounting to make each one of these also self-contained and not driven by a central management work item The current code was intended to make it such that a single timer for the namespace and one work item per cell could do all the work required to maintain these records. This, however, made for some sequencing problems when cleaning up these records. Further, the attempt to pass refs along with timers and work items made getting it right rather tricky when the timer or work item already had a ref attached and now a ref had to be got rid of" * tag 'vfs-6.15-rc1.afs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: afs: Simplify cell record handling afs: Fix afs_server ref accounting afs: Use the per-peer app data provided by rxrpc rxrpc: Allow the app to store private data on peer structs afs: Drop the net parameter from afs_unuse_cell() afs: Make afs_lookup_cell() take a trace note afs: Improve server refcount/active count tracing afs: Improve afs_volume tracing to display a debug ID afs: Change dynroot to create contents on demand afs: Remove the "autocell" mount option
2025-03-24tcp/dccp: Remove inet_connection_sock_af_ops.addr2sockaddr().Kuniyuki Iwashima
inet_connection_sock_af_ops.addr2sockaddr() hasn't been used at all in the git era. $ git grep addr2sockaddr $(git rev-list HEAD | tail -n 1) Let's remove it. Note that there was a 4 bytes hole after sockaddr_len and now it's 6 bytes, so the binary layout is not changed. Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://patch.msgid.link/20250318060112.3729-1-kuniyu@amazon.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-24tcp: move icsk_clean_acked to a better locationEric Dumazet
As a followup of my presentation in Zagreb for netdev 0x19: icsk_clean_acked is only used by TCP when/if CONFIG_TLS_DEVICE is enabled from tcp_ack(). Rename it to tcp_clean_acked, move it to tcp_sock structure in the tcp_sock_read_rx for better cache locality in TCP fast path. Define this field only when CONFIG_TLS_DEVICE is enabled saving 8 bytes on configs not using it. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Neal Cardwell <ncardwell@google.com> Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://patch.msgid.link/20250317085313.2023214-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-24ax25: Remove broken autobindMurad Masimov
Binding AX25 socket by using the autobind feature leads to memory leaks in ax25_connect() and also refcount leaks in ax25_release(). Memory leak was detected with kmemleak: ================================================================ unreferenced object 0xffff8880253cd680 (size 96): backtrace: __kmalloc_node_track_caller_noprof (./include/linux/kmemleak.h:43) kmemdup_noprof (mm/util.c:136) ax25_rt_autobind (net/ax25/ax25_route.c:428) ax25_connect (net/ax25/af_ax25.c:1282) __sys_connect_file (net/socket.c:2045) __sys_connect (net/socket.c:2064) __x64_sys_connect (net/socket.c:2067) do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) ================================================================ When socket is bound, refcounts must be incremented the way it is done in ax25_bind() and ax25_setsockopt() (SO_BINDTODEVICE). In case of autobind, the refcounts are not incremented. This bug leads to the following issue reported by Syzkaller: ================================================================ ax25_connect(): syz-executor318 uses autobind, please contact jreuter@yaina.de ------------[ cut here ]------------ refcount_t: decrement hit 0; leaking memory. WARNING: CPU: 0 PID: 5317 at lib/refcount.c:31 refcount_warn_saturate+0xfa/0x1d0 lib/refcount.c:31 Modules linked in: CPU: 0 UID: 0 PID: 5317 Comm: syz-executor318 Not tainted 6.14.0-rc4-syzkaller-00278-gece144f151ac #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:refcount_warn_saturate+0xfa/0x1d0 lib/refcount.c:31 ... Call Trace: <TASK> __refcount_dec include/linux/refcount.h:336 [inline] refcount_dec include/linux/refcount.h:351 [inline] ref_tracker_free+0x6af/0x7e0 lib/ref_tracker.c:236 netdev_tracker_free include/linux/netdevice.h:4302 [inline] netdev_put include/linux/netdevice.h:4319 [inline] ax25_release+0x368/0x960 net/ax25/af_ax25.c:1080 __sock_release net/socket.c:647 [inline] sock_close+0xbc/0x240 net/socket.c:1398 __fput+0x3e9/0x9f0 fs/file_table.c:464 __do_sys_close fs/open.c:1580 [inline] __se_sys_close fs/open.c:1565 [inline] __x64_sys_close+0x7f/0x110 fs/open.c:1565 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f ... </TASK> ================================================================ Considering the issues above and the comments left in the code that say: "check if we can remove this feature. It is broken."; "autobinding in this may or may not work"; - it is better to completely remove this feature than to fix it because it is broken and leads to various kinds of memory bugs. Now calling connect() without first binding socket will result in an error (-EINVAL). Userspace software that relies on the autobind feature might get broken. However, this feature does not seem widely used with this specific driver as it was not reliable at any point of time, and it is already broken anyway. E.g. ax25-tools and ax25-apps packages for popular distributions do not use the autobind feature for AF_AX25. Found by Linux Verification Center (linuxtesting.org) with Syzkaller. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reported-by: syzbot+33841dc6aa3e1d86b78a@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=33841dc6aa3e1d86b78a Signed-off-by: Murad Masimov <m.masimov@mt-integration.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-03-21net: mctp: Remove unnecessary cast in mctp_cbHerbert Xu
The void * cast in mctp_cb is unnecessary as it's already been done at the start of the function. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Jeremy Kerr <jk@codeconstruct.com.au> Link: https://patch.msgid.link/Z9PwOQeBSYlgZlHq@gondor.apana.org.au Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-03-21xfrm: ipcomp: Use crypto_acomp interfaceHerbert Xu
Replace the legacy comperssion interface with the new acomp interface. This is the first user to make full user of the asynchronous nature of acomp by plugging into the existing xfrm resume interface. As a result of SG support by acomp, the linear scratch buffer in ipcomp can be removed. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-03-21netfilter: fib: avoid lookup if socket is availableFlorian Westphal
In case the fib match is used from the input hook we can avoid the fib lookup if early demux assigned a socket for us: check that the input interface matches sk-cached one. Rework the existing 'lo bypass' logic to first check sk, then for loopback interface type to elide the fib lookup. This speeds up fib matching a little, before: 93.08 GBit/s (no rules at all) 75.1 GBit/s ("fib saddr . iif oif missing drop" in prerouting) 75.62 GBit/s ("fib saddr . iif oif missing drop" in input) After: 92.48 GBit/s (no rules at all) 75.62 GBit/s (fib rule in prerouting) 90.37 GBit/s (fib rule in input). Numbers for the 'no rules' and 'prerouting' are expected to closely match in-between runs, the 3rd/input test case exercises the the 'avoid lookup if cached ifindex in sk matches' case. Test used iperf3 via veth interface, lo can't be used due to existing loopback test. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-03-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netPaolo Abeni
Cross-merge networking fixes after downstream PR (net-6.14-rc8). Conflict: tools/testing/selftests/net/Makefile 03544faad761 ("selftest: net: add proc_net_pktgen") 3ed61b8938c6 ("selftests: net: test for lwtunnel dst ref loops") tools/testing/selftests/net/config: 85cb3711acb8 ("selftests: net: Add test cases for link and peer netns") 3ed61b8938c6 ("selftests: net: test for lwtunnel dst ref loops") Adjacent commits: tools/testing/selftests/net/Makefile c935af429ec2 ("selftests: net: add support for testing SO_RCVMARK and SO_RCVPRIORITY") 355d940f4d5a ("Revert "selftests: Add IPv6 link-local address generation tests for GRE devices."") Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-03-20mptcp: sysctl: add available_path_managersGeliang Tang
Similarly to net.mptcp.available_schedulers, this patch adds a new one net.mptcp.available_path_managers to list the available path managers. Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250313-net-next-mptcp-pm-ops-intro-v1-11-f4e4a88efc50@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-03-20mptcp: pm: define struct mptcp_pm_opsGeliang Tang
In order to allow users to develop their own BPF-based path manager, this patch defines a struct ops "mptcp_pm_ops" for an MPTCP path manager, which contains a set of interfaces. Currently only init() and release() interfaces are included, subsequent patches will add others step by step. Add a set of functions to register, unregister, find and validate a given path manager struct ops. "list" is used to add this path manager to mptcp_pm_list list when it is registered. "name" is used to identify this path manager. mptcp_pm_find() uses "name" to find a path manager on the list. mptcp_pm_unregister is not used in this set, but will be invoked in .unreg of struct bpf_struct_ops. mptcp_pm_validate() will be invoked in .validate of struct bpf_struct_ops. That's why they are exported. Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250313-net-next-mptcp-pm-ops-intro-v1-6-f4e4a88efc50@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-03-19Merge tag 'for-net-2025-03-14' of ↵Paolo Abeni
git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth Luiz Augusto von Dentz says: ==================== bluetooth pull request for net: - hci_event: Fix connection regression between LE and non-LE adapters - Fix error code in chan_alloc_skb_cb() * tag 'for-net-2025-03-14' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth: Bluetooth: hci_event: Fix connection regression between LE and non-LE adapters Bluetooth: Fix error code in chan_alloc_skb_cb() ==================== Link: https://patch.msgid.link/20250314163847.110069-1-luiz.dentz@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-03-18tcp: cache RTAX_QUICKACK metric in a hot cache lineEric Dumazet
tcp_in_quickack_mode() is called from input path for small packets. It calls __sk_dst_get() which reads sk->sk_dst_cache which has been put in sock_read_tx group (for good reasons). Then dst_metric(dst, RTAX_QUICKACK) also needs extra cache line misses. Cache RTAX_QUICKACK in icsk->icsk_ack.dst_quick_ack to no longer pull these cache lines for the cases a delayed ACK is scheduled. After this patch TCP receive path does not longer access sock_read_tx group. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Jason Xing <kerneljasonxing@gmail.com> Reviewed-by: Neal Cardwell <ncardwell@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://patch.msgid.link/20250312083907.1931644-1-edumazet@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-03-18inet: frags: change inet_frag_kill() to defer refcount updatesEric Dumazet
In the following patch, we no longer assume inet_frag_kill() callers own a reference. Consuming two refcounts from inet_frag_kill() would lead in UAF. Propagate the pointer to the refs that will be consumed later by the final inet_frag_putn() call. Signed-off-by: Eric Dumazet <edumazet@google.com> Link: https://patch.msgid.link/20250312082250.1803501-4-edumazet@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-03-18inet: frags: add inet_frag_putn() helperEric Dumazet
inet_frag_putn() can release multiple references in one step. Use it in inet_frags_free_cb(). Replace inet_frag_put(X) with inet_frag_putn(X, 1) Signed-off-by: Eric Dumazet <edumazet@google.com> Link: https://patch.msgid.link/20250312082250.1803501-2-edumazet@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-03-18udp_tunnel: use static call for GRO hooks when possiblePaolo Abeni
It's quite common to have a single UDP tunnel type active in the whole system. In such a case we can replace the indirect call for the UDP tunnel GRO callback with a static call. Add the related accounting in the control path and switch to static call when possible. To keep the code simple use a static array for the registered tunnel types, and size such array based on the kernel config. Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/6fd1f9c7651151493ecab174e7b8386a1534170d.1741718157.git.pabeni@redhat.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-03-18udp_tunnel: create a fastpath GRO lookup.Paolo Abeni
Most UDP tunnels bind a socket to a local port, with ANY address, no peer and no interface index specified. Additionally it's quite common to have a single tunnel device per namespace. Track in each namespace the UDP tunnel socket respecting the above. When only a single one is present, store a reference in the netns. When such reference is not NULL, UDP tunnel GRO lookup just need to match the incoming packet destination port vs the socket local port. The tunnel socket never sets the reuse[port] flag[s]. When bound to no address and interface, no other socket can exist in the same netns matching the specified local port. Matching packets with non-local destination addresses will be aggregated, and eventually segmented as needed - no behavior changes intended. Note that the UDP tunnel socket reference is stored into struct netns_ipv4 for both IPv4 and IPv6 tunnels. That is intentional to keep all the fastpath-related netns fields in the same struct and allow cacheline-based optimization. Currently both the IPv4 and IPv6 socket pointer share the same cacheline as the `udp_table` field. Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/4d5c319c4471161829f50cb8436841de81a5edae.1741718157.git.pabeni@redhat.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-03-18net: mana: Support holes in device list reply msgHaiyang Zhang
According to GDMA protocol, holes (zeros) are allowed at the beginning or middle of the gdma_list_devices_resp message. The existing code cannot properly handle this, and may miss some devices in the list. To fix, scan the entire list until the num_of_devs are found, or until the end of the list. Cc: stable@vger.kernel.org Fixes: ca9c54d2d6a5 ("net: mana: Add a driver for Microsoft Azure Network Adapter (MANA)") Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: Long Li <longli@microsoft.com> Reviewed-by: Shradha Gupta <shradhagupta@microsoft.com> Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Link: https://patch.msgid.link/1741723974-1534-1-git-send-email-haiyangz@microsoft.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-03-18Merge net-next/main to resolve conflictsJohannes Berg
There are a few conflicts between the work that went into wireless and that's here now, resolve them. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-03-17tcp: Pass flags to __tcp_send_ackIlpo Järvinen
Accurate ECN needs to send custom flags to handle IP-ECN field reflection during handshake. Signed-off-by: Ilpo Järvinen <ij@kernel.org> Signed-off-by: Chia-Yu Chang <chia-yu.chang@nokia-bell-labs.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-03-17tcp: add new TCP_TW_ACK_OOW state and allow ECN bits in TOSIlpo Järvinen
ECN bits in TOS are always cleared when sending in ACKs in TW. Clearing them is problematic for TCP flows that used Accurate ECN because ECN bits decide which service queue the packet is placed into (L4S vs Classic). Effectively, TW ACKs are always downgraded from L4S to Classic queue which might impact, e.g., delay the ACK will experience on the path compared with the other packets of the flow. Change the TW ACK sending code to differentiate: - In tcp_v4_send_reset(), commit ba9e04a7ddf4f ("ip: fix tos reflection in ack and reset packets") cleans ECN bits for TW reset and this is not affected. - In tcp_v4_timewait_ack(), ECN bits for all TW ACKs are cleaned. But now only ECN bits of ACKs for oow data or paws_reject are cleaned, and ECN bits of other ACKs will not be cleaned. - In tcp_v4_reqsk_send_ack(), commit 66b13d99d96a1 ("ipv4: tcp: fix TOS value in ACK messages sent from TIME_WAIT") did not clean ECN bits of ACKs for oow data or paws_reject. But now the ECN bits rae cleaned for these ACKs. Signed-off-by: Ilpo Järvinen <ij@kernel.org> Signed-off-by: Chia-Yu Chang <chia-yu.chang@nokia-bell-labs.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-03-17tcp: helpers for ECN mode handlingIlpo Järvinen
Create helpers for TCP ECN modes. No functional changes. Signed-off-by: Ilpo Järvinen <ij@kernel.org> Signed-off-by: Chia-Yu Chang <chia-yu.chang@nokia-bell-labs.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-03-17tcp: extend TCP flags to allow AE bit/ACE fieldIlpo Järvinen
With AccECN, there's one additional TCP flag to be used (AE) and ACE field that overloads the definition of AE, CWR, and ECE flags. As tcp_flags was previously only 1 byte, the byte-order stuff needs to be added to it's handling. Signed-off-by: Ilpo Järvinen <ij@kernel.org> Signed-off-by: Chia-Yu Chang <chia-yu.chang@nokia-bell-labs.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-03-17tcp: use BIT() macro in include/net/tcp.hChia-Yu Chang
Use BIT() macro for TCP flags field and TCP congestion control flags that will be used by the congestion control algorithm. No functional changes. Signed-off-by: Chia-Yu Chang <chia-yu.chang@nokia-bell-labs.com> Reviewed-by: Ilpo Järvinen <ij@kernel.org> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-03-16percpu: use TYPEOF_UNQUAL() in variable declarationsUros Bizjak
Use TYPEOF_UNQUAL() to declare variables as a corresponding type without named address space qualifier to avoid "`__seg_gs' specified for auto variable `var'" errors. Link: https://lkml.kernel.org/r/20250127160709.80604-4-ubizjak@gmail.com Signed-off-by: Uros Bizjak <ubizjak@gmail.com> Acked-by: Nadav Amit <nadav.amit@gmail.com> Acked-by: Christoph Lameter <cl@linux.com> Cc: Dennis Zhou <dennis@kernel.org> Cc: Tejun Heo <tj@kernel.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Kent Overstreet <kent.overstreet@linux.dev> Cc: Arnd Bergmann <arnd@arndb.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Will Deacon <will@kernel.org> Cc: Waiman Long <longman@redhat.com> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-03-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netPaolo Abeni
Cross-merge networking fixes after downstream PR (net-6.14-rc6). Conflicts: tools/testing/selftests/drivers/net/ping.py 75cc19c8ff89 ("selftests: drv-net: add xdp cases for ping.py") de94e8697405 ("selftests: drv-net: store addresses in dict indexed by ipver") https://lore.kernel.org/netdev/20250311115758.17a1d414@canb.auug.org.au/ net/core/devmem.c a70f891e0fa0 ("net: devmem: do not WARN conditionally after netdev_rx_queue_restart()") 1d22d3060b9b ("net: drop rtnl_lock for queue_mgmt operations") https://lore.kernel.org/netdev/20250313114929.43744df1@canb.auug.org.au/ Adjacent changes: tools/testing/selftests/net/Makefile 6f50175ccad4 ("selftests: Add IPv6 link-local address generation tests for GRE devices.") 2e5584e0f913 ("selftests/net: expand cmsg_ipv6.sh with ipv4") drivers/net/ethernet/broadcom/bnxt/bnxt.c 661958552eda ("eth: bnxt: do not use BNXT_VNIC_NTUPLE unconditionally in queue restart logic") fe96d717d38e ("bnxt_en: Extend queue stop/start for TX rings") Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-03-13Bluetooth: hci_event: Fix connection regression between LE and non-LE adaptersArkadiusz Bokowy
Due to a typo during defining HCI errors it is not possible to connect LE-capable device with BR/EDR only adapter. The connection is terminated by the LE adapter because the invalid LL params error code is treated as unsupported remote feature. Fixes: 79c0868ad65a ("Bluetooth: hci_event: Use HCI error defines instead of magic values") Signed-off-by: Arkadiusz Bokowy <arkadiusz.bokowy@gmail.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-03-13net: mana: Change the function signature of mana_get_primary_netdev_rcuLong Li
Change mana_get_primary_netdev_rcu() to mana_get_primary_netdev(), and return the ndev with refcount held. The caller is responsible for dropping the refcount. Also drop the check for IFF_SLAVE as it is not necessary if the upper device is present. Signed-off-by: Long Li <longli@microsoft.com> Link: https://patch.msgid.link/1741821332-9392-1-git-send-email-longli@linuxonhyperv.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
2025-03-12net: add granular lock for the netdev netlink socketStanislav Fomichev
As we move away from rtnl_lock for queue ops, introduce per-netdev_nl_sock lock. Signed-off-by: Stanislav Fomichev <sdf@fomichev.me> Reviewed-by: Mina Almasry <almasrymina@google.com> Link: https://patch.msgid.link/20250311144026.4154277-3-sdf@fomichev.me Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-12net: create netdev_nl_sock to wrap bindings listStanislav Fomichev
No functional changes. Next patches will add more granular locking to netdev_nl_sock. Signed-off-by: Stanislav Fomichev <sdf@fomichev.me> Reviewed-by: Mina Almasry <almasrymina@google.com> Link: https://patch.msgid.link/20250311144026.4154277-2-sdf@fomichev.me Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-12wifi: cfg80211: expose cfg80211_chandef_get_width()Johannes Berg
This can be just a trivial inline, to simplify some code. Expose it, and also use it in util.c where it wasn't previously available. Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250311122534.c5c3b4af9a74.Ib25cf60f634dc359961182113214e5cdc3504e9c@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-03-11wifi: cfg80211: Update the link address when a link is addedIlan Peer
When links are added, update the wireless device link addresses based on the information provided by the driver. Signed-off-by: Ilan Peer <ilan.peer@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250308225541.d694a9125aba.I79b010ea9aab47893e4f22c266362fde30b7f9ac@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-03-11wifi: cfg80211: improve supported_selector documentationJohannes Berg
Improve the documentation for supported BSS selectors to make it more precise. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Reviewed-by: Ilan Peer <ilan.peer@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250308225541.ba402ff47314.I502b56111b62ea0be174ae76bd03684ae1d4aefb@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-03-11wifi: cfg80211: allow IR in 20 MHz configurationsAnjaneyulu
Some regulatory bodies doesn't allow IR (initiate radioation) on a specific subband, but allows it for channels with a bandwidth of 20 MHz. Add a channel flag that indicates that, and consider it in cfg80211_reg_check_beaconing. While on it, fix the kernel doc of enum nl80211_reg_rule_flags and change it to use BIT(). Signed-off-by: Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com> Co-developed-by: Somashekhar Puttagangaiah <somashekhar.puttagangaiah@intel.com> Signed-off-by: Somashekhar Puttagangaiah <somashekhar.puttagangaiah@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250308225541.d3ab352a73ff.I8a8f79e1c9eb74936929463960ee2a324712fe51@changeid [fix typo] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-03-11wifi: cfg80211: allow setting extended MLD capa/opsJohannes Berg
Some extended MLD capabilities and operations bits (currently the "BTM MLD Recommendataion For Multiple APs Support" bit) may depend on userspace capabilities. Allow userspace to pass the values for this field that it supports to the association and link reconfiguration operations. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Reviewed-by: Ilan Peer <ilan.peer@intel.com> Link: https://patch.msgid.link/20250308225541.bd52078b5f65.I4dd8f53b0030db7ea87a2e0920989e7e2c7b5345@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-03-11wifi: cfg80211: move link reconfig parameters into a structJohannes Berg
Add a new struct cfg80211_ml_reconf_req to collect the link reconfiguration parameters. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250308225541.0cf299c1fdd0.Id1a3b1092dc52d0d3731a8798522fdf2e052bf0b@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-03-10rxrpc: Allow the app to store private data on peer structsDavid Howells
Provide a way for the application (e.g. the afs filesystem) to store private data on the rxrpc_peer structs for later retrieval via the call object. This will allow afs to store a pointer to the afs_server object on the rxrpc_peer struct, thereby obviating the need for afs to keep lookup tables by which it can associate an incoming call with server that transmitted it. Signed-off-by: David Howells <dhowells@redhat.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: Jakub Kicinski <kuba@kernel.org> cc: "David S. Miller" <davem@davemloft.net> cc: Eric Dumazet <edumazet@google.com> cc: Paolo Abeni <pabeni@redhat.com> cc: Simon Horman <horms@kernel.org> cc: linux-afs@lists.infradead.org cc: linux-fsdevel@vger.kernel.org cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20250224234154.2014840-13-dhowells@redhat.com/ # v1 Link: https://lore.kernel.org/r/20250310094206.801057-9-dhowells@redhat.com/ # v4
2025-03-08net: move misc netdev_lock flavors to a separate headerJakub Kicinski
Move the more esoteric helpers for netdev instance lock to a dedicated header. This avoids growing netdevice.h to infinity and makes rebuilding the kernel much faster (after touching the header with the helpers). The main netdev_lock() / netdev_unlock() functions are used in static inlines in netdevice.h and will probably be used most commonly, so keep them in netdevice.h. Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250307183006.2312761-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-07tcp: ulp: diag: more info without CAP_NET_ADMINMatthieu Baerts (NGI0)
When introduced in commit 61723b393292 ("tcp: ulp: add functions to dump ulp-specific information"), the whole ULP diag info has been exported only if the requester had CAP_NET_ADMIN. It looks like not everything is sensitive, and some info can be exported to all users in order to ease the debugging from the userspace side without requiring additional capabilities. Each layer should then decide what can be exposed to everybody. The 'net_admin' boolean is then passed to the different layers. On kTLS side, it looks like there is nothing sensitive there: version, cipher type, tx/rx user config type, plus some flags. So, only some metadata about the configuration, no cryptographic info like keys, etc. Then, everything can be exported to all users. On MPTCP side, that's different. The MPTCP-related sequence numbers per subflow should certainly not be exposed to everybody. For example, the DSS mapping and ssn_offset would give all users on the system access to narrow ranges of values for the subflow TCP sequence numbers and MPTCP-level DSNs, and then ease packet injection. The TCP diag interface doesn't expose the TCP sequence numbers for TCP sockets, so best to do the same here. The rest -- token, IDs, flags -- can be exported to everybody. Acked-by: Mat Martineau <martineau@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20250306-net-next-tcp-ulp-diag-net-admin-v1-2-06afdd860fc9@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-07Revert "Bluetooth: hci_core: Fix sleeping function called from invalid context"Luiz Augusto von Dentz
This reverts commit 4d94f05558271654670d18c26c912da0c1c15549 which has problems (see [1]) and is no longer needed since 581dd2dc168f ("Bluetooth: hci_event: Fix using rcu_read_(un)lock while iterating") has reworked the code where the original bug has been found. [1] Link: https://lore.kernel.org/linux-bluetooth/877c55ci1r.wl-tiwai@suse.de/T/#t Fixes: 4d94f0555827 ("Bluetooth: hci_core: Fix sleeping function called from invalid context") Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2025-03-06inet: call inet6_ehashfn() once from inet6_hash_connect()Eric Dumazet
inet6_ehashfn() being called from __inet6_check_established() has a big impact on performance, as shown in the Tested section. After prior patch, we can compute the hash for port 0 from inet6_hash_connect(), and derive each hash in __inet_hash_connect() from this initial hash: hash(saddr, lport, daddr, dport) == hash(saddr, 0, daddr, dport) + lport Apply the same principle for __inet_check_established(), although inet_ehashfn() has a smaller cost. Tested: Server: ulimit -n 40000; neper/tcp_crr -T 200 -F 30000 -6 --nolog Client: ulimit -n 40000; neper/tcp_crr -T 200 -F 30000 -6 --nolog -c -H server Before this patch: utime_start=0.286131 utime_end=4.378886 stime_start=11.952556 stime_end=1991.655533 num_transactions=1446830 latency_min=0.001061085 latency_max=12.075275028 latency_mean=0.376375302 latency_stddev=1.361969596 num_samples=306383 throughput=151866.56 perf top: 50.01% [kernel] [k] __inet6_check_established 20.65% [kernel] [k] __inet_hash_connect 15.81% [kernel] [k] inet6_ehashfn 2.92% [kernel] [k] rcu_all_qs 2.34% [kernel] [k] __cond_resched 0.50% [kernel] [k] _raw_spin_lock 0.34% [kernel] [k] sched_balance_trigger 0.24% [kernel] [k] queued_spin_lock_slowpath After this patch: utime_start=0.315047 utime_end=9.257617 stime_start=7.041489 stime_end=1923.688387 num_transactions=3057968 latency_min=0.003041375 latency_max=7.056589232 latency_mean=0.141075048 # Better latency metrics latency_stddev=0.526900516 num_samples=312996 throughput=320677.21 # 111 % increase, and 229 % for the series perf top: inet6_ehashfn is no longer seen. 39.67% [kernel] [k] __inet_hash_connect 37.06% [kernel] [k] __inet6_check_established 4.79% [kernel] [k] rcu_all_qs 3.82% [kernel] [k] __cond_resched 1.76% [kernel] [k] sched_balance_domains 0.82% [kernel] [k] _raw_spin_lock 0.81% [kernel] [k] sched_balance_rq 0.81% [kernel] [k] sched_balance_trigger 0.76% [kernel] [k] queued_spin_lock_slowpath Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Tested-by: Jason Xing <kerneljasonxing@gmail.com> Reviewed-by: Jason Xing <kerneljasonxing@gmail.com> Link: https://patch.msgid.link/20250305034550.879255-3-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-06netfilter: nf_tables: make destruction work queue pernetFlorian Westphal
The call to flush_work before tearing down a table from the netlink notifier was supposed to make sure that all earlier updates (e.g. rule add) that might reference that table have been processed. Unfortunately, flush_work() waits for the last queued instance. This could be an instance that is different from the one that we must wait for. This is because transactions are protected with a pernet mutex, but the work item is global, so holding the transaction mutex doesn't prevent another netns from queueing more work. Make the work item pernet so that flush_work() will wait for all transactions queued from this netns. A welcome side effect is that we no longer need to wait for transaction objects from foreign netns. The gc work queue is still global. This seems to be ok because nft_set structures are reference counted and each container structure owns a reference on the net namespace. The destroy_list is still protected by a global spinlock rather than pernet one but the hold time is very short anyway. v2: call cancel_work_sync before reaping the remaining tables (Pablo). Fixes: 9f6958ba2e90 ("netfilter: nf_tables: unconditionally flush pending work before notifier") Reported-by: syzbot+5d8c5789c8cb076b2c25@syzkaller.appspotmail.com Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-03-05inet: fix lwtunnel_valid_encap_type() lock imbalanceEric Dumazet
After blamed commit rtm_to_fib_config() now calls lwtunnel_valid_encap_type{_attr}() without RTNL held, triggering an unlock balance in __rtnl_unlock, as reported by syzbot [1] IPv6 and rtm_to_nh_config() are not yet converted. Add a temporary @rtnl_is_held parameter to lwtunnel_valid_encap_type() and lwtunnel_valid_encap_type_attr(). While we are at it replace the two rcu_dereference() in lwtunnel_valid_encap_type() with more appropriate rcu_access_pointer(). [1] syz-executor245/5836 is trying to release lock (rtnl_mutex) at: [<ffffffff89d0e38c>] __rtnl_unlock+0x6c/0xf0 net/core/rtnetlink.c:142 but there are no more locks to release! other info that might help us debug this: no locks held by syz-executor245/5836. stack backtrace: CPU: 0 UID: 0 PID: 5836 Comm: syz-executor245 Not tainted 6.14.0-rc4-syzkaller-00873-g3424291dd242 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_unlock_imbalance_bug+0x25b/0x2d0 kernel/locking/lockdep.c:5289 __lock_release kernel/locking/lockdep.c:5518 [inline] lock_release+0x47e/0xa30 kernel/locking/lockdep.c:5872 __mutex_unlock_slowpath+0xec/0x800 kernel/locking/mutex.c:891 __rtnl_unlock+0x6c/0xf0 net/core/rtnetlink.c:142 lwtunnel_valid_encap_type+0x38a/0x5f0 net/core/lwtunnel.c:169 lwtunnel_valid_encap_type_attr+0x113/0x270 net/core/lwtunnel.c:209 rtm_to_fib_config+0x949/0x14e0 net/ipv4/fib_frontend.c:808 inet_rtm_newroute+0xf6/0x2a0 net/ipv4/fib_frontend.c:917 rtnetlink_rcv_msg+0x791/0xcf0 net/core/rtnetlink.c:6919 netlink_rcv_skb+0x206/0x480 net/netlink/af_netlink.c:2534 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline] netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1339 netlink_sendmsg+0x8de/0xcb0 net/netlink/af_netlink.c:1883 sock_sendmsg_nosec net/socket.c:709 [inline] Fixes: 1dd2af7963e9 ("ipv4: fib: Convert RTM_NEWROUTE and RTM_DELROUTE to per-netns RTNL.") Reported-by: syzbot+3f18ef0f7df107a3f6a0@syzkaller.appspotmail.com Closes: https://lore.kernel.org/netdev/67c6f87a.050a0220.38b91b.0147.GAE@google.com/T/#u Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://patch.msgid.link/20250304125918.2763514-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-04tcp: use RCU lookup in __inet_hash_connect()Eric Dumazet
When __inet_hash_connect() has to try many 4-tuples before finding an available one, we see a high spinlock cost from the many spin_lock_bh(&head->lock) performed in its loop. This patch adds an RCU lookup to avoid the spinlock cost. check_established() gets a new @rcu_lookup argument. First reason is to not make any changes while head->lock is not held. Second reason is to not make this RCU lookup a second time after the spinlock has been acquired. Tested: Server: ulimit -n 40000; neper/tcp_crr -T 200 -F 30000 -6 --nolog Client: ulimit -n 40000; neper/tcp_crr -T 200 -F 30000 -6 --nolog -c -H server Before series: utime_start=0.288582 utime_end=1.548707 stime_start=20.637138 stime_end=2002.489845 num_transactions=484453 latency_min=0.156279245 latency_max=20.922042756 latency_mean=1.546521274 latency_stddev=3.936005194 num_samples=312537 throughput=47426.00 perf top on the client: 49.54% [kernel] [k] _raw_spin_lock 25.87% [kernel] [k] _raw_spin_lock_bh 5.97% [kernel] [k] queued_spin_lock_slowpath 5.67% [kernel] [k] __inet_hash_connect 3.53% [kernel] [k] __inet6_check_established 3.48% [kernel] [k] inet6_ehashfn 0.64% [kernel] [k] rcu_all_qs After this series: utime_start=0.271607 utime_end=3.847111 stime_start=18.407684 stime_end=1997.485557 num_transactions=1350742 latency_min=0.014131929 latency_max=17.895073144 latency_mean=0.505675853 # Nice reduction of latency metrics latency_stddev=2.125164772 num_samples=307884 throughput=139866.80 # 190 % increase perf top on client: 56.86% [kernel] [k] __inet6_check_established 17.96% [kernel] [k] __inet_hash_connect 13.88% [kernel] [k] inet6_ehashfn 2.52% [kernel] [k] rcu_all_qs 2.01% [kernel] [k] __cond_resched 0.41% [kernel] [k] _raw_spin_lock Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Jason Xing <kerneljasonxing@gmail.com> Tested-by: Jason Xing <kerneljasonxing@gmail.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://patch.msgid.link/20250302124237.3913746-5-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-04tcp: add RCU management to inet_bind_bucketEric Dumazet
Add RCU protection to inet_bind_bucket structure. - Add rcu_head field to the structure definition. - Use kfree_rcu() at destroy time, and remove inet_bind_bucket_destroy() first argument. - Use hlist_del_rcu() and hlist_add_head_rcu() methods. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Jason Xing <kerneljasonxing@gmail.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://patch.msgid.link/20250302124237.3913746-4-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-04Merge tag 'wireless-next-2025-03-04-v2' of ↵Jakub Kicinski
https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Johannes Berg says: ==================== First 6.15 material: * cfg80211/mac80211 - remove cooked monitor support - strict mode for better AP testing - basic EPCS support - OMI RX bandwidth reduction support * rtw88 - preparation for RTL8814AU support * rtw89 - use wiphy_lock/wiphy_work - preparations for MLO - BT-Coex improvements - regulatory support in firmware files * iwlwifi - preparations for the new iwlmld sub-driver * tag 'wireless-next-2025-03-04-v2' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (128 commits) wifi: iwlwifi: remove mld/roc.c wifi: mac80211: refactor populating mesh related fields in sinfo wifi: cfg80211: reorg sinfo structure elements for mesh wifi: iwlwifi: Fix spelling mistake "Increate" -> "Increase" wifi: iwlwifi: add Debug Host Command APIs wifi: iwlwifi: add IWL_MAX_NUM_IGTKS macro wifi: iwlwifi: add OMI bandwidth reduction APIs wifi: iwlwifi: remove mvm prefix from iwl_mvm_d3_end_notif wifi: iwlwifi: remember if the UATS table was read successfully wifi: iwlwifi: export iwl_get_lari_config_bitmap wifi: iwlwifi: add support for external 32 KHz clock wifi: iwlwifi: mld: add a debug level for EHT prints wifi: iwlwifi: mld: add a debug level for PTP prints wifi: iwlwifi: remove mvm prefix from iwl_mvm_esr_mode_notif wifi: iwlwifi: use 0xff instead of 0xffffffff for invalid wifi: iwlwifi: location api cleanup wifi: cfg80211: expose update timestamp to drivers wifi: mac80211: add ieee80211_iter_chan_contexts_mtx wifi: mac80211: fix integer overflow in hwmp_route_info_get() wifi: mac80211: Fix possible integer promotion issue ... ==================== Link: https://patch.msgid.link/20250304125605.127914-3-johannes@sipsolutions.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-03sock: add sock_kmemdup helperGeliang Tang
This patch adds the sock version of kmemdup() helper, named sock_kmemdup(), to duplicate the input "src" memory block using the socket's option memory buffer. Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Acked-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/f828077394c7d1f3560123497348b438c875b510.1740735165.git.tanggeliang@kylinos.cn Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-03tcp: convert to dev_net_rcu()Eric Dumazet
TCP uses of dev_net() are under RCU protection, change them to dev_net_rcu() to get LOCKDEP support. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://patch.msgid.link/20250301201424.2046477-4-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
generated by cgit (git 2.34.1) at 2025-07-23 10:37:13 +0000