Re: [RFC PATCH v4 12/17] virtio/vsock: rest of SOCK_SEQPACKET support

From: kernel test robot <lkp@intel.com>
To: kbuild-all@lists.01.org
Subject: Re: [RFC PATCH v4 12/17] virtio/vsock: rest of SOCK_SEQPACKET support
Date: Tue, 09 Feb 2021 12:34:38 +0800	[thread overview]
Message-ID: <202102091228.imhertUv-lkp@intel.com> (raw)
In-Reply-To: <20210207151747.805754-1-arseny.krasnov@kaspersky.com>

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Hi Arseny,

[FYI, it's a private test report for your RFC patch.]
[auto build test WARNING on linus/master]
[cannot apply to vhost/linux-next v5.11-rc6 next-20210125]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Arseny-Krasnov/virtio-vsock-introduce-SOCK_SEQPACKET-support/20210207-232655
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 61556703b610a104de324e4f061dc6cf7b218b46
config: i386-randconfig-s001-20210209 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.3-215-g0fb77bb6-dirty
        # https://github.com/0day-ci/linux/commit/0bfa48046cf3aa71cde18727f1ac90448308bfdd
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Arseny-Krasnov/virtio-vsock-introduce-SOCK_SEQPACKET-support/20210207-232655
        git checkout 0bfa48046cf3aa71cde18727f1ac90448308bfdd
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

"sparse warnings: (new ones prefixed by >>)"
   net/vmw_vsock/virtio_transport_common.c:430:31: sparse: sparse: incorrect type in initializer (different base types) @@     expected restricted __le32 [usertype] msg_cnt @@     got unsigned int [usertype] next_tx_msg_cnt @@
   net/vmw_vsock/virtio_transport_common.c:430:31: sparse:     expected restricted __le32 [usertype] msg_cnt
   net/vmw_vsock/virtio_transport_common.c:430:31: sparse:     got unsigned int [usertype] next_tx_msg_cnt
>> net/vmw_vsock/virtio_transport_common.c:431:28: sparse: sparse: incorrect type in initializer (different base types) @@     expected restricted __le32 [usertype] msg_len @@     got unsigned int [usertype] len @@
   net/vmw_vsock/virtio_transport_common.c:431:28: sparse:     expected restricted __le32 [usertype] msg_len
   net/vmw_vsock/virtio_transport_common.c:431:28: sparse:     got unsigned int [usertype] len

vim +431 net/vmw_vsock/virtio_transport_common.c

   416	
   417	static int virtio_transport_seqpacket_send_ctrl(struct vsock_sock *vsk,
   418							int type,
   419							size_t len,
   420							int flags)
   421	{
   422		struct virtio_vsock_sock *vvs = vsk->trans;
   423		struct virtio_vsock_pkt_info info = {
   424			.op = type,
   425			.vsk = vsk,
   426			.pkt_len = sizeof(struct virtio_vsock_seq_hdr)
   427		};
   428	
   429		struct virtio_vsock_seq_hdr seq_hdr = {
   430			.msg_cnt = vvs->next_tx_msg_cnt,
 > 431			.msg_len = len
   432		};
   433	
   434		struct kvec seq_hdr_kiov = {
   435			.iov_base = (void *)&seq_hdr,
   436			.iov_len = sizeof(struct virtio_vsock_seq_hdr)
   437		};
   438	
   439		struct msghdr msg = {0};
   440	
   441		//XXX: do we need 'vsock_transport_send_notify_data' pointer?
   442		if (vsock_wait_space(sk_vsock(vsk),
   443				     sizeof(struct virtio_vsock_seq_hdr),
   444				     flags, NULL))
   445			return -1;
   446	
   447		iov_iter_kvec(&msg.msg_iter, WRITE, &seq_hdr_kiov, 1, sizeof(seq_hdr));
   448	
   449		info.msg = &msg;
   450		vvs->next_tx_msg_cnt++;
   451	
   452		return virtio_transport_send_pkt_info(vsk, &info);
   453	}
   454	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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