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Message-ID: <202508251226.ArERUcGn-lkp@intel.com>
Date: Mon, 25 Aug 2025 12:45:25 +0800
From: kernel test robot <lkp@...el.com>
To: Eric Dumazet <edumazet@...gle.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
Jakub Kicinski <kuba@...nel.org>,
Maciej Żenczykowski <maze@...gle.com>
Subject: include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 1b237f190eb3d36f52dffe07a40b5eb210280e00
commit: e84a4927a404f369c842c19de93b216627fcc690 net: annotate races around sk->sk_uid
date: 9 weeks ago
config: alpha-randconfig-r131-20250824 (https://download.01.org/0day-ci/archive/20250825/202508251226.ArERUcGn-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 9.5.0
reproduce: (https://download.01.org/0day-ci/archive/20250825/202508251226.ArERUcGn-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202508251226.ArERUcGn-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
net/core/lwt_bpf.c: note: in included file (through include/linux/tcp.h, include/linux/ipv6.h, include/net/ipv6.h, include/net/inetpeer.h, ...):
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
--
net/ipv4/route.c: note: in included file (through include/linux/mroute_base.h, include/linux/mroute.h):
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
net/ipv4/route.c: note: in included file (through include/linux/mroute_base.h, include/linux/mroute.h):
include/net/ip_fib.h:562:19: sparse: sparse: cast to non-scalar
include/net/ip_fib.h:562:19: sparse: sparse: cast from non-scalar
include/net/ip_fib.h:562:19: sparse: sparse: cast to non-scalar
include/net/ip_fib.h:562:19: sparse: sparse: cast from non-scalar
include/net/ip_fib.h:562:19: sparse: sparse: cast to non-scalar
include/net/ip_fib.h:562:19: sparse: sparse: cast from non-scalar
include/net/ip_fib.h:562:19: sparse: sparse: cast to non-scalar
include/net/ip_fib.h:562:19: sparse: sparse: cast from non-scalar
include/net/ip_fib.h:562:19: sparse: sparse: cast to non-scalar
include/net/ip_fib.h:562:19: sparse: sparse: cast from non-scalar
include/net/ip_fib.h:562:19: sparse: sparse: cast to non-scalar
include/net/ip_fib.h:562:19: sparse: sparse: cast from non-scalar
--
net/ipv4/ip_output.c: note: in included file (through include/net/inet_sock.h, include/net/ip.h):
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
--
net/ipv4/inet_connection_sock.c:328:36: sparse: sparse: context imbalance in 'inet_csk_find_open_port' - wrong count at exit
net/ipv4/inet_connection_sock.c:605:23: sparse: sparse: context imbalance in 'inet_csk_get_port' - unexpected unlock
net/ipv4/inet_connection_sock.c: note: in included file (through include/net/inet_sock.h, include/net/inet_connection_sock.h):
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
net/ipv4/inet_connection_sock.c:1467:9: sparse: sparse: context imbalance in 'inet_csk_complete_hashdance' - unexpected unlock
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
--
net/ipv4/tcp_ipv4.c:3415:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const *data @@ got struct tcp_congestion_ops const [noderef] __rcu *tcp_congestion_control @@
net/ipv4/tcp_ipv4.c:3415:41: sparse: expected void const *data
net/ipv4/tcp_ipv4.c:3415:41: sparse: got struct tcp_congestion_ops const [noderef] __rcu *tcp_congestion_control
net/ipv4/tcp_ipv4.c:3537:45: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const *data @@ got struct tcp_congestion_ops const [noderef] __rcu *extern [addressable] [toplevel] tcp_congestion_control @@
net/ipv4/tcp_ipv4.c:3537:45: sparse: expected void const *data
net/ipv4/tcp_ipv4.c:3537:45: sparse: got struct tcp_congestion_ops const [noderef] __rcu *extern [addressable] [toplevel] tcp_congestion_control
net/ipv4/tcp_ipv4.c:3541:50: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct tcp_congestion_ops const [noderef] __rcu *tcp_congestion_control @@ got struct tcp_congestion_ops * @@
net/ipv4/tcp_ipv4.c:3541:50: sparse: expected struct tcp_congestion_ops const [noderef] __rcu *tcp_congestion_control
net/ipv4/tcp_ipv4.c:3541:50: sparse: got struct tcp_congestion_ops *
net/ipv4/tcp_ipv4.c: note: in included file (through include/net/inet_sock.h, include/net/icmp.h):
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
net/ipv4/tcp_ipv4.c:1846:25: sparse: sparse: context imbalance in 'tcp_v4_syn_recv_sock' - unexpected unlock
net/ipv4/tcp_ipv4.c:2139:17: sparse: sparse: context imbalance in 'tcp_add_backlog' - unexpected unlock
net/ipv4/tcp_ipv4.c:2401:21: sparse: sparse: context imbalance in 'tcp_v4_rcv' - different lock contexts for basic block
net/ipv4/tcp_ipv4.c:2612:13: sparse: sparse: context imbalance in 'listening_get_first' - wrong count at exit
net/ipv4/tcp_ipv4.c:2660:29: sparse: sparse: context imbalance in 'listening_get_next' - unexpected unlock
net/ipv4/tcp_ipv4.c:2693:13: sparse: sparse: context imbalance in 'established_get_first' - wrong count at exit
net/ipv4/tcp_ipv4.c:2738:40: sparse: sparse: context imbalance in 'established_get_next' - unexpected unlock
net/ipv4/tcp_ipv4.c:2870:36: sparse: sparse: context imbalance in 'tcp_seq_stop' - unexpected unlock
net/ipv4/tcp_ipv4.c:3091:20: sparse: sparse: context imbalance in 'bpf_iter_tcp_listening_batch' - unexpected unlock
net/ipv4/tcp_ipv4.c:3119:40: sparse: sparse: context imbalance in 'bpf_iter_tcp_established_batch' - unexpected unlock
net/ipv4/tcp_ipv4.c:3416:41: sparse: sparse: dereference of noderef expression
net/ipv4/tcp_ipv4.c:3416:41: sparse: sparse: dereference of noderef expression
net/ipv4/tcp_ipv4.c:3538:45: sparse: sparse: dereference of noderef expression
net/ipv4/tcp_ipv4.c:3538:45: sparse: sparse: dereference of noderef expression
--
net/ipv4/datagram.c: note: in included file (through include/net/inet_sock.h, include/net/ip.h):
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
--
net/ipv4/raw.c: note: in included file (through include/linux/mroute_base.h, include/linux/mroute.h):
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
--
net/ipv4/udp.c: note: in included file (through include/linux/bpf-cgroup.h):
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
net/ipv4/udp.c:1668:28: sparse: sparse: context imbalance in 'udp_rmem_release' - unexpected unlock
net/ipv4/udp.c:1700:19: sparse: sparse: context imbalance in 'busylock_acquire' - wrong count at exit
net/ipv4/udp.c:1712:28: sparse: sparse: context imbalance in 'busylock_release' - unexpected unlock
net/ipv4/udp.c:3305:9: sparse: sparse: context imbalance in 'udp_get_first' - wrong count at exit
net/ipv4/udp.c:3322:39: sparse: sparse: context imbalance in 'udp_get_next' - unexpected unlock
net/ipv4/udp.c:3370:31: sparse: sparse: context imbalance in 'udp_seq_stop' - unexpected unlock
--
net/ipv4/af_inet.c: note: in included file (through include/net/inet_sock.h, include/net/ip.h):
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
--
net/ipv4/ping.c: note: in included file (through include/net/inet_sock.h, include/net/ip.h):
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
--
net/ipv6/af_inet6.c: note: in included file (through include/linux/tcp.h, include/linux/ipv6.h, include/linux/icmpv6.h):
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
--
net/ipv6/route.c:2382:39: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] flow_label @@ got restricted __be32 @@
net/ipv6/route.c:2382:39: sparse: expected unsigned int [usertype] flow_label
net/ipv6/route.c:2382:39: sparse: got restricted __be32
net/ipv6/route.c: note: in included file (through include/linux/mroute_base.h, include/linux/mroute6.h):
include/net/ip_fib.h:562:19: sparse: sparse: cast to non-scalar
include/net/ip_fib.h:562:19: sparse: sparse: cast from non-scalar
include/net/ip_fib.h:562:19: sparse: sparse: cast to non-scalar
include/net/ip_fib.h:562:19: sparse: sparse: cast from non-scalar
include/net/ip_fib.h:562:19: sparse: sparse: cast to non-scalar
include/net/ip_fib.h:562:19: sparse: sparse: cast from non-scalar
include/net/ip_fib.h:562:19: sparse: sparse: cast to non-scalar
include/net/ip_fib.h:562:19: sparse: sparse: cast from non-scalar
include/net/ip_fib.h:562:19: sparse: sparse: cast to non-scalar
include/net/ip_fib.h:562:19: sparse: sparse: cast from non-scalar
include/net/ip_fib.h:562:19: sparse: sparse: cast to non-scalar
include/net/ip_fib.h:562:19: sparse: sparse: cast from non-scalar
net/ipv6/route.c: note: in included file (through include/linux/mroute_base.h, include/linux/mroute6.h):
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
--
net/ipv6/udp.c: note: in included file (through include/linux/bpf-cgroup.h):
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
--
net/ipv6/raw.c: note: in included file (through include/linux/tcp.h, include/linux/ipv6.h, include/linux/icmpv6.h):
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
--
net/ipv6/ping.c: note: in included file (through include/linux/tcp.h, include/linux/ipv6.h, include/net/addrconf.h):
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
--
net/ipv6/datagram.c: note: in included file (through include/linux/tcp.h, include/linux/ipv6.h):
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
--
net/ipv6/tcp_ipv6.c: note: in included file (through include/linux/tcp.h, include/linux/ipv6.h):
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
net/ipv6/tcp_ipv6.c:1565:25: sparse: sparse: context imbalance in 'tcp_v6_syn_recv_sock' - unexpected unlock
net/ipv6/tcp_ipv6.c:1956:21: sparse: sparse: context imbalance in 'tcp_v6_rcv' - different lock contexts for basic block
--
net/ipv6/inet6_connection_sock.c: note: in included file (through include/linux/tcp.h, include/linux/ipv6.h):
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
--
net/ipv6/netfilter.c: note: in included file (through include/linux/tcp.h, include/linux/ipv6.h):
>> include/net/sock.h:2100:16: sparse: sparse: cast to non-scalar
>> include/net/sock.h:2100:16: sparse: sparse: cast from non-scalar
vim +2100 include/net/sock.h
2096
2097 static inline kuid_t sk_uid(const struct sock *sk)
2098 {
2099 /* Paired with WRITE_ONCE() in sockfs_setattr() */
> 2100 return READ_ONCE(sk->sk_uid);
2101 }
2102
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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