pm24.git/net/atm, branch master

atm: clean up a put_user() calls

2024-06-15T02:08:50Z

Unlike copy_from_user(), put_user() and get_user() return -EFAULT on error. Use the error code directly instead of setting it. Signed-off-by: Dan Carpenter Link: https://lore.kernel.org/r/04a018e8-7433-4f67-8ddd-9357a0114f87@moroto.mountain Signed-off-by: Jakub Kicinski

net: change proto and proto_ops accept type

2024-05-14T00:19:09Z

Rather than pass in flags, error pointer, and whether this is a kernel invocation or not, add a struct proto_accept_arg struct as the argument. This then holds all of these arguments, and prepares accept for being able to pass back more information. No functional changes in this patch. Acked-by: Jakub Kicinski Signed-off-by: Jens Axboe

inet: introduce dst_rtable() helper

2024-05-01T01:32:38Z

I added dst_rt6_info() in commit e8dfd42c17fa ("ipv6: introduce dst_rt6_info() helper") This patch does a similar change for IPv4. Instead of (struct rtable *)dst casts, we can use : #define dst_rtable(_ptr) \ container_of_const(_ptr, struct rtable, dst) Patch is smaller than IPv6 one, because IPv4 has skb_rtable() helper. Signed-off-by: Eric Dumazet Reviewed-by: David Ahern Reviewed-by: Sabrina Dubroca Link: https://lore.kernel.org/r/20240429133009.1227754-1-edumazet@google.com Signed-off-by: Jakub Kicinski

ipv4: Set scope explicitly in ip_route_output().

2024-04-08T12:20:51Z

Add a "scope" parameter to ip_route_output() so that callers don't have to override the tos parameter with the RTO_ONLINK flag if they want a local scope. This will allow converting flowi4_tos to dscp_t in the future, thus allowing static analysers to flag invalid interactions between "tos" (the DSCP bits) and ECN. Only three users ask for local scope (bonding, arp and atm). The others continue to use RT_SCOPE_UNIVERSE. While there, add a comment to warn users about the limitations of ip_route_output(). Signed-off-by: Guillaume Nault Acked-by: Leon Romanovsky # infiniband Signed-off-by: David S. Miller

net: add sk_wake_async_rcu() helper

2024-03-29T22:03:11Z

While looking at UDP receive performance, I saw sk_wake_async() was no longer inlined. This matters at least on AMD Zen1-4 platforms (see SRSO) This might be because rcu_read_lock() and rcu_read_unlock() are no longer nops in recent kernels ? Add sk_wake_async_rcu() variant, which must be called from contexts already holding rcu lock. As SOCK_FASYNC is deprecated in modern days, use unlikely() to give a hint to the compiler. sk_wake_async_rcu() is properly inlined from __udp_enqueue_schedule_skb() and sock_def_readable(). Signed-off-by: Eric Dumazet Link: https://lore.kernel.org/r/20240328144032.1864988-5-edumazet@google.com Signed-off-by: Jakub Kicinski

net: fill in MODULE_DESCRIPTION()s for mpoa

2024-02-09T22:12:01Z

W=1 builds now warn if module is built without a MODULE_DESCRIPTION(). Add descriptions to the Multi-Protocol Over ATM (MPOA) driver. Signed-off-by: Breno Leitao Reviewed-by: Simon Horman Link: https://lore.kernel.org/r/20240208164244.3818498-3-leitao@debian.org Signed-off-by: Jakub Kicinski

net: fill in MODULE_DESCRIPTION()s for ATM

2024-01-05T16:04:23Z

W=1 builds now warn if module is built without a MODULE_DESCRIPTION(). Add descriptions to all the ATM modules and drivers. Link: https://lore.kernel.org/r/20240104143737.1317945-1-kuba@kernel.org Signed-off-by: Jakub Kicinski

atm: Fix Use-After-Free in do_vcc_ioctl

2023-12-12T12:14:08Z

Because do_vcc_ioctl() accesses sk->sk_receive_queue without holding a sk->sk_receive_queue.lock, it can cause a race with vcc_recvmsg(). A use-after-free for skb occurs with the following flow. ``` do_vcc_ioctl() -> skb_peek() vcc_recvmsg() -> skb_recv_datagram() -> skb_free_datagram() ``` Add sk->sk_receive_queue.lock to do_vcc_ioctl() to fix this issue. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Hyunwoo Kim Link: https://lore.kernel.org/r/20231209094210.GA403126@v4bel-B760M-AORUS-ELITE-AX Signed-off-by: Paolo Abeni

net: atm: Remove redundant check.

2023-10-23T07:45:25Z

Checking the 'adev' variable is unnecessary, because 'cdev' has already been checked earlier. Found by InfoTeCS on behalf of Linux Verification Center (linuxtesting.org) with SVACE. Fixes: 656d98b09d57 ("[ATM]: basic sysfs support for ATM devices") Signed-off-by: Gavrilov Ilia Signed-off-by: David S. Miller

sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES)

2023-06-24T22:50:13Z

Remove ->sendpage() and ->sendpage_locked(). sendmsg() with MSG_SPLICE_PAGES should be used instead. This allows multiple pages and multipage folios to be passed through. Signed-off-by: David Howells Acked-by: Marc Kleine-Budde # for net/can cc: Jens Axboe cc: Matthew Wilcox cc: linux-afs@lists.infradead.org cc: mptcp@lists.linux.dev cc: rds-devel@oss.oracle.com cc: tipc-discussion@lists.sourceforge.net cc: virtualization@lists.linux-foundation.org Link: https://lore.kernel.org/r/20230623225513.2732256-16-dhowells@redhat.com Signed-off-by: Jakub Kicinski