Hi Sowmini,
[auto build test results on v4.3-rc3 -- if it's inappropriate base, please
ignore]
reproduce:
# apt-get install sparse
make ARCH=x86_64 allmodconfig
make C=1 CF=-D__CHECK_ENDIAN__
sparse warnings: (new ones prefixed by >>)
>> net/rds/tcp_listen.c:118:35: sparse: restricted __be32 degrades to integer
net/rds/tcp_listen.c:118:56: sparse: restricted __be32 degrades to integer
net/rds/tcp_listen.c:187:29: sparse: incorrect type in assignment (different
base types)
net/rds/tcp_listen.c:187:29: expected restricted __be32 [assigned]
[usertype] s_addr
net/rds/tcp_listen.c:187:29: got unsigned int [unsigned] [usertype]
<noident>
net/rds/tcp_listen.c:188:22: sparse: incorrect type in assignment (different
base types)
net/rds/tcp_listen.c:188:22: expected restricted __be16 [assigned]
[usertype] sin_port
net/rds/tcp_listen.c:188:22: got unsigned short [unsigned] [usertype]
<noident>
vim +118 net/rds/tcp_listen.c
102 &inet->inet_saddr, ntohs(inet->inet_sport),
103 &inet->inet_daddr, ntohs(inet->inet_dport));
104
105 conn = rds_conn_create(sock_net(sock->sk),
106 inet->inet_saddr, inet->inet_daddr,
107 &rds_tcp_transport, GFP_KERNEL);
108 if (IS_ERR(conn)) {
109 ret = PTR_ERR(conn);
110 goto out;
111 }
112 /* An incoming SYN request came in, and TCP just accepted it.
113 *
114 * If the client reboots, this conn will need to be cleaned up.
115 * rds_tcp_state_change() will do that cleanup
116 */
117 rs_tcp = (struct rds_tcp_connection *)conn->c_transport_data;
> 118 if (rs_tcp->t_sock && inet->inet_saddr < inet->inet_daddr) {
119 struct sock *nsk = new_sock->sk;
120
121 nsk->sk_user_data = NULL;
122 nsk->sk_prot->disconnect(nsk, 0);
123 tcp_done(nsk);
124 new_sock = NULL;
125 ret = 0;
126 goto out;
---
0-DAY kernel test infrastructure Open Source Technology Center
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