Messages in this thread | | | Date | Thu, 9 Apr 2020 05:32:34 +0800 | From | kbuild test robot <> | Subject | net/sunrpc/svcsock.c:527:32: warning: Variable 'uninitialized_var' is assigned a value that is never used. [unreadVariable] |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: f5e94d10e4c468357019e5c28d48499f677b284f commit: da1661b93bf489cdbc8bcea919b165d31b4810bf SUNRPC: Teach server to use xprt_sock_sendmsg for socket sends date: 3 weeks ago
If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp@intel.com>
cppcheck warnings: (new ones prefixed by >>)
net/sunrpc/svcsock.c:405:9: warning: union member 'Anonymous0::all' is never used. [unusedStructMember] long all[SVC_PKTINFO_SPACE / sizeof(long)]; ^ net/sunrpc/svcsock.c:518:9: warning: union member 'Anonymous1::all' is never used. [unusedStructMember] long all[SVC_PKTINFO_SPACE / sizeof(long)]; ^ >> net/sunrpc/svcsock.c:527:32: warning: Variable 'uninitialized_var' is assigned a value that is never used. [unreadVariable] unsigned int uninitialized_var(sent); ^
vim +/uninitialized_var +527 net/sunrpc/svcsock.c
504 505 /** 506 * svc_udp_sendto - Send out a reply on a UDP socket 507 * @rqstp: completed svc_rqst 508 * 509 * Returns the number of bytes sent, or a negative errno. 510 */ 511 static int svc_udp_sendto(struct svc_rqst *rqstp) 512 { 513 struct svc_xprt *xprt = rqstp->rq_xprt; 514 struct svc_sock *svsk = container_of(xprt, struct svc_sock, sk_xprt); 515 struct xdr_buf *xdr = &rqstp->rq_res; 516 union { 517 struct cmsghdr hdr; 518 long all[SVC_PKTINFO_SPACE / sizeof(long)]; 519 } buffer; 520 struct cmsghdr *cmh = &buffer.hdr; 521 struct msghdr msg = { 522 .msg_name = &rqstp->rq_addr, 523 .msg_namelen = rqstp->rq_addrlen, 524 .msg_control = cmh, 525 .msg_controllen = sizeof(buffer), 526 }; > 527 unsigned int uninitialized_var(sent); 528 int err; 529 530 svc_set_cmsg_data(rqstp, cmh); 531 532 err = xprt_sock_sendmsg(svsk->sk_sock, &msg, xdr, 0, 0, &sent); 533 xdr_free_bvec(xdr); 534 if (err == -ECONNREFUSED) { 535 /* ICMP error on earlier request. */ 536 err = xprt_sock_sendmsg(svsk->sk_sock, &msg, xdr, 0, 0, &sent); 537 xdr_free_bvec(xdr); 538 } 539 if (err < 0) 540 return err; 541 return sent; 542 } 543
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