thr3ads.net - Linux Virtualization - [vhost:vhost 22/22] drivers/vdpa/vdpa_sim/vdpa_sim.c:94:8: error: implicit declaration of function 'vringh_init_iotlb'; did you mean 'vringh_init

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kbuild test robot
2020-Apr-02 13:50 UTC
[vhost:vhost 22/22] drivers/vdpa/vdpa_sim/vdpa_sim.c:94:8: error: implicit declaration of function 'vringh_init_iotlb'; did you mean 'vringh_init_kern'?

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost
head:   076cb4adba3e2d7d3c25b72a1390b24ebfc58161
commit: 076cb4adba3e2d7d3c25b72a1390b24ebfc58161 [22/22] virtio/test: fix up
after IOTLB changes
config: m68k-allmodconfig (attached as .config)
compiler: m68k-linux-gcc (GCC) 9.3.0
reproduce:
        wget
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 076cb4adba3e2d7d3c25b72a1390b24ebfc58161
        # save the attached .config to linux build tree
        GCC_VERSION=9.3.0 make.cross ARCH=m68k 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp at intel.com>

All errors (new ones prefixed by >>):

   drivers/vdpa/vdpa_sim/vdpa_sim.c: In function
'vdpasim_queue_ready':>> drivers/vdpa/vdpa_sim/vdpa_sim.c:94:8: error: implicit declaration of
function 'vringh_init_iotlb'; did you mean 'vringh_init_kern'?
[-Werror=implicit-function-declaration]      94 |  ret = vringh_init_iotlb(&vq->vring, vdpasim_features,
         |        ^~~~~~~~~~~~~~~~~
         |        vringh_init_kern
   drivers/vdpa/vdpa_sim/vdpa_sim.c: In function
'vdpasim_work':>> drivers/vdpa/vdpa_sim/vdpa_sim.c:149:9: error: implicit declaration of
function 'vringh_getdesc_iotlb'; did you mean
'vringh_getdesc_kern'? [-Werror=implicit-function-declaration]     149 |   err = vringh_getdesc_iotlb(&txq->vring, &txq->iov,
NULL,
         |         ^~~~~~~~~~~~~~~~~~~~
         |         vringh_getdesc_kern>> drivers/vdpa/vdpa_sim/vdpa_sim.c:157:4: error: implicit declaration of
function 'vringh_complete_iotlb'; did you mean
'vringh_complete_kern'? [-Werror=implicit-function-declaration]     157 |    vringh_complete_iotlb(&txq->vring, txq->head, 0);
         |    ^~~~~~~~~~~~~~~~~~~~~
         |    vringh_complete_kern>> drivers/vdpa/vdpa_sim/vdpa_sim.c:162:11: error: implicit declaration of
function 'vringh_iov_pull_iotlb'; did you mean
'vringh_iov_pull_kern'? [-Werror=implicit-function-declaration]     162 |    read = vringh_iov_pull_iotlb(&txq->vring, &txq->iov,
         |           ^~~~~~~~~~~~~~~~~~~~~
         |           vringh_iov_pull_kern>> drivers/vdpa/vdpa_sim/vdpa_sim.c:168:12: error: implicit declaration of
function 'vringh_iov_push_iotlb'; did you mean
'vringh_iov_push_kern'? [-Werror=implicit-function-declaration]     168 |    write = vringh_iov_push_iotlb(&rxq->vring,
&rxq->iov,
         |            ^~~~~~~~~~~~~~~~~~~~~
         |            vringh_iov_push_kern
   drivers/vdpa/vdpa_sim/vdpa_sim.c: In function
'vdpasim_create':>> drivers/vdpa/vdpa_sim/vdpa_sim.c:339:2: error: implicit declaration of
function 'vringh_set_iotlb' [-Werror=implicit-function-declaration]     339 |  vringh_set_iotlb(&vdpasim->vqs[0].vring, vdpasim->iommu);
         |  ^~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +94 drivers/vdpa/vdpa_sim/vdpa_sim.c

a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
88
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
89  static void vdpasim_queue_ready(struct vdpasim *vdpasim, unsigned int idx)
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
90  {
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
91  	struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
92  	int ret;
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
93
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
@94  	ret = vringh_init_iotlb(&vq->vring, vdpasim_features,
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
95  				VDPASIM_QUEUE_MAX, false,
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
96  				(struct vring_desc *)(uintptr_t)vq->desc_addr,
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
97  				(struct vring_avail *)
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
98  				(uintptr_t)vq->driver_addr,
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26  
99  				(struct vring_used *)
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
100  				(uintptr_t)vq->device_addr);
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
101  }
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
102
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
103  static void vdpasim_vq_reset(struct vdpasim_virtqueue *vq)
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
104  {
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
105  	vq->ready = 0;
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
106  	vq->desc_addr = 0;
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
107  	vq->driver_addr = 0;
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
108  	vq->device_addr = 0;
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
109  	vq->cb = NULL;
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
110  	vq->private = NULL;
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
111  	vringh_init_iotlb(&vq->vring, vdpasim_features, VDPASIM_QUEUE_MAX,
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
112  			  false, NULL, NULL, NULL);
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
113  }
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
114
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
115  static void vdpasim_reset(struct vdpasim *vdpasim)
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
116  {
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
117  	int i;
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
118
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
119  	for (i = 0; i < VDPASIM_VQ_NUM; i++)
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
120  		vdpasim_vq_reset(&vdpasim->vqs[i]);
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
121
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
122  	vhost_iotlb_reset(vdpasim->iommu);
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
123
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
124  	vdpasim->features = 0;
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
125  	vdpasim->status = 0;
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
126  	++vdpasim->generation;
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
127  }
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
128
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
129  static void vdpasim_work(struct work_struct *work)
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
130  {
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
131  	struct vdpasim *vdpasim = container_of(work, struct
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
132  						 vdpasim, work);
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
133  	struct vdpasim_virtqueue *txq = &vdpasim->vqs[1];
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
134  	struct vdpasim_virtqueue *rxq = &vdpasim->vqs[0];
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
135  	size_t read, write, total_write;
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
136  	int err;
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
137  	int pkts = 0;
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
138
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
139  	spin_lock(&vdpasim->lock);
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
140
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
141  	if (!(vdpasim->status & VIRTIO_CONFIG_S_DRIVER_OK))
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
142  		goto out;
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
143
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
144  	if (!txq->ready || !rxq->ready)
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
145  		goto out;
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
146
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
147  	while (true) {
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
148  		total_write = 0;
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26
@149  		err = vringh_getdesc_iotlb(&txq->vring, &txq->iov, NULL,
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
150  					   &txq->head, GFP_ATOMIC);
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
151  		if (err <= 0)
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
152  			break;
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
153
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
154  		err = vringh_getdesc_iotlb(&rxq->vring, NULL, &rxq->iov,
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
155  					   &rxq->head, GFP_ATOMIC);
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
156  		if (err <= 0) {
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26
@157  			vringh_complete_iotlb(&txq->vring, txq->head, 0);
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
158  			break;
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
159  		}
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
160
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
161  		while (true) {
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26
@162  			read = vringh_iov_pull_iotlb(&txq->vring, &txq->iov,
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
163  						     vdpasim->buffer,
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
164  						     PAGE_SIZE);
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
165  			if (read <= 0)
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
166  				break;
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
167
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26
@168  			write = vringh_iov_push_iotlb(&rxq->vring, &rxq->iov,
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
169  						      vdpasim->buffer, read);
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
170  			if (write <= 0)
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
171  				break;
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
172
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
173  			total_write += write;
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
174  		}
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
175
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
176  		/* Make sure data is wrote before advancing index */
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
177  		smp_wmb();
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
178
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
179  		vringh_complete_iotlb(&txq->vring, txq->head, 0);
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
180  		vringh_complete_iotlb(&rxq->vring, rxq->head, total_write);
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
181
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
182  		/* Make sure used is visible before rasing the interrupt. */
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
183  		smp_wmb();
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
184
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
185  		local_bh_disable();
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
186  		if (txq->cb)
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
187  			txq->cb(txq->private);
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
188  		if (rxq->cb)
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
189  			rxq->cb(rxq->private);
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
190  		local_bh_enable();
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
191
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
192  		if (++pkts > 4) {
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
193  			schedule_work(&vdpasim->work);
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
194  			goto out;
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
195  		}
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
196  	}
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
197
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
198  out:
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
199  	spin_unlock(&vdpasim->lock);
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
200  }
a35630af6f3198 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 
201

:::::: The code at line 94 was first introduced by commit
:::::: a35630af6f31989c517b45c19dc7f9c64bf59a8c vdpasim: vDPA device simulator

:::::: TO: Jason Wang <jasowang at redhat.com>
:::::: CC: Michael S. Tsirkin <mst at redhat.com>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all at lists.01.org
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Linux Virtualization - Apr 2020 - [vhost:vhost 22/22] drivers/vdpa/vdpa_sim/vdpa_sim.c:94:8: error: implicit declaration of function 'vringh_init_iotlb'; did you mean 'vringh_init_kern'?

[vhost:vhost 22/22] drivers/vdpa/vdpa_sim/vdpa_sim.c:94:8: error: implicit declaration of function 'vringh_init_iotlb'; did you mean 'vringh_init_kern'?

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