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Date: Thu, 30 Mar 2017 10:08:10 +0800
From: kbuild test robot <fengguang.wu@...el.com>
To: "Michael S. Tsirkin" <mst@...hat.com>
Cc: kbuild-all@...org, kvm@...r.kernel.org,
virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org
Subject: [vhost:linux-next 6/19]
drivers/remoteproc/remoteproc_virtio.c:106:33: sparse: not enough arguments
for function vring_new_virtqueue
tree: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
head: 8ab881d0e8136390da79aa0902fe03d2f6c65e32
commit: 281310d52c1d63630f54b1ac5cca6e9eb8715b3a [6/19] virtio: add context flag to find vqs
reproduce:
# apt-get install sparse
git checkout 281310d52c1d63630f54b1ac5cca6e9eb8715b3a
make ARCH=x86_64 allmodconfig
make C=1 CF=-D__CHECK_ENDIAN__
sparse warnings: (new ones prefixed by >>)
include/linux/compiler.h:264:8: sparse: attribute 'no_sanitize_address': unknown attribute
>> drivers/remoteproc/remoteproc_virtio.c:106:33: sparse: not enough arguments for function vring_new_virtqueue
drivers/remoteproc/remoteproc_virtio.c: In function 'rp_find_vq':
drivers/remoteproc/remoteproc_virtio.c:107:27: error: passing argument 8 of 'vring_new_virtqueue' from incompatible pointer type [-Werror=incompatible-pointer-types]
rproc_virtio_notify, callback, name);
^~~~~~~~
In file included from drivers/remoteproc/remoteproc_virtio.c:25:0:
include/linux/virtio_ring.h:93:19: note: expected 'bool (*)(struct virtqueue *) {aka _Bool (*)(struct virtqueue *)}' but argument is of type 'void (*)(struct virtqueue *)'
struct virtqueue *vring_new_virtqueue(unsigned int index,
^~~~~~~~~~~~~~~~~~~
drivers/remoteproc/remoteproc_virtio.c:107:37: error: passing argument 9 of 'vring_new_virtqueue' from incompatible pointer type [-Werror=incompatible-pointer-types]
rproc_virtio_notify, callback, name);
^~~~
In file included from drivers/remoteproc/remoteproc_virtio.c:25:0:
include/linux/virtio_ring.h:93:19: note: expected 'void (*)(struct virtqueue *)' but argument is of type 'const char *'
struct virtqueue *vring_new_virtqueue(unsigned int index,
^~~~~~~~~~~~~~~~~~~
drivers/remoteproc/remoteproc_virtio.c:106:7: error: too few arguments to function 'vring_new_virtqueue'
vq = vring_new_virtqueue(id, len, rvring->align, vdev, false, addr,
^~~~~~~~~~~~~~~~~~~
In file included from drivers/remoteproc/remoteproc_virtio.c:25:0:
include/linux/virtio_ring.h:93:19: note: declared here
struct virtqueue *vring_new_virtqueue(unsigned int index,
^~~~~~~~~~~~~~~~~~~
drivers/remoteproc/remoteproc_virtio.c: At top level:
drivers/remoteproc/remoteproc_virtio.c:264:14: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
.find_vqs = rproc_virtio_find_vqs,
^~~~~~~~~~~~~~~~~~~~~
drivers/remoteproc/remoteproc_virtio.c:264:14: note: (near initialization for 'rproc_virtio_config_ops.find_vqs')
cc1: some warnings being treated as errors
vim +106 drivers/remoteproc/remoteproc_virtio.c
6457f126c drivers/remoteproc/remoteproc_virtio.c Michael S. Tsirkin 2012-09-05 90
6db20ea8d drivers/remoteproc/remoteproc_virtio.c Ohad Ben-Cohen 2012-05-17 91 rvring = &rvdev->vring[id];
7a1869416 drivers/remoteproc/remoteproc_virtio.c Ohad Ben-Cohen 2012-02-13 92 addr = rvring->va;
7a1869416 drivers/remoteproc/remoteproc_virtio.c Ohad Ben-Cohen 2012-02-13 93 len = rvring->len;
ac8954a41 drivers/remoteproc/remoteproc_rpmsg.c Ohad Ben-Cohen 2011-10-20 94
7a1869416 drivers/remoteproc/remoteproc_virtio.c Ohad Ben-Cohen 2012-02-13 95 /* zero vring */
7a1869416 drivers/remoteproc/remoteproc_virtio.c Ohad Ben-Cohen 2012-02-13 96 size = vring_size(len, rvring->align);
7a1869416 drivers/remoteproc/remoteproc_virtio.c Ohad Ben-Cohen 2012-02-13 97 memset(addr, 0, size);
ac8954a41 drivers/remoteproc/remoteproc_rpmsg.c Ohad Ben-Cohen 2011-10-20 98
b5ab5e24e drivers/remoteproc/remoteproc_virtio.c Ohad Ben-Cohen 2012-05-30 99 dev_dbg(dev, "vring%d: va %p qsz %d notifyid %d\n",
7a1869416 drivers/remoteproc/remoteproc_virtio.c Ohad Ben-Cohen 2012-02-13 100 id, addr, len, rvring->notifyid);
ac8954a41 drivers/remoteproc/remoteproc_rpmsg.c Ohad Ben-Cohen 2011-10-20 101
dd6da1c5e drivers/remoteproc/remoteproc_rpmsg.c Ohad Ben-Cohen 2012-01-12 102 /*
dd6da1c5e drivers/remoteproc/remoteproc_rpmsg.c Ohad Ben-Cohen 2012-01-12 103 * Create the new vq, and tell virtio we're not interested in
dd6da1c5e drivers/remoteproc/remoteproc_rpmsg.c Ohad Ben-Cohen 2012-01-12 104 * the 'weak' smp barriers, since we're talking with a real device.
dd6da1c5e drivers/remoteproc/remoteproc_rpmsg.c Ohad Ben-Cohen 2012-01-12 105 */
17bb6d408 drivers/remoteproc/remoteproc_virtio.c Jason Wang 2012-08-28 @106 vq = vring_new_virtqueue(id, len, rvring->align, vdev, false, addr,
ac8954a41 drivers/remoteproc/remoteproc_rpmsg.c Ohad Ben-Cohen 2011-10-20 107 rproc_virtio_notify, callback, name);
ac8954a41 drivers/remoteproc/remoteproc_rpmsg.c Ohad Ben-Cohen 2011-10-20 108 if (!vq) {
b5ab5e24e drivers/remoteproc/remoteproc_virtio.c Ohad Ben-Cohen 2012-05-30 109 dev_err(dev, "vring_new_virtqueue %s failed\n", name);
6db20ea8d drivers/remoteproc/remoteproc_virtio.c Ohad Ben-Cohen 2012-05-17 110 rproc_free_vring(rvring);
7a1869416 drivers/remoteproc/remoteproc_virtio.c Ohad Ben-Cohen 2012-02-13 111 return ERR_PTR(-ENOMEM);
ac8954a41 drivers/remoteproc/remoteproc_rpmsg.c Ohad Ben-Cohen 2011-10-20 112 }
ac8954a41 drivers/remoteproc/remoteproc_rpmsg.c Ohad Ben-Cohen 2011-10-20 113
7a1869416 drivers/remoteproc/remoteproc_virtio.c Ohad Ben-Cohen 2012-02-13 114 rvring->vq = vq;
:::::: The code at line 106 was first introduced by commit
:::::: 17bb6d40880d4178f5f8a75900ed8c9ff47d3fb2 virtio-ring: move queue_index to vring_virtqueue
:::::: TO: Jason Wang <jasowang@...hat.com>
:::::: CC: Rusty Russell <rusty@...tcorp.com.au>
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