tree: git://linuxtv.org/media_tree.git master
head: 201b56737f4ea59ee840ebdb88a9970ea6d49cf1
commit: 57868acc369ab73ec8f6b43a0c6749077376b189 [3281/3294] media: videobuf2: Add new uAPI for DVB streaming I/O
config: i386-randconfig-s1-201752 (attached as .config)
compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026
reproduce:
git checkout 57868acc369ab73ec8f6b43a0c6749077376b189
# save the attached .config to linux build tree
make ARCH=i386
Note: the linuxtv-media/master HEAD 201b56737f4ea59ee840ebdb88a9970ea6d49cf1 builds fine.
It only hurts bisectibility.
All errors (new ones prefixed by >>):
drivers/media/dvb-core/dvb_vb2.o: In function `dvb_vb2_init':
drivers/media/dvb-core/dvb_vb2.c:170: undefined reference to `vb2_vmalloc_memops'
>> drivers/media/dvb-core/dvb_vb2.c:173: undefined reference to `vb2_core_queue_init'
drivers/media/dvb-core/dvb_vb2.o: In function `dvb_vb2_release':
>> drivers/media/dvb-core/dvb_vb2.c:198: undefined reference to `vb2_core_queue_release'
drivers/media/dvb-core/dvb_vb2.o: In function `dvb_vb2_stream_on':
>> drivers/media/dvb-core/dvb_vb2.c:211: undefined reference to `vb2_core_streamon'
drivers/media/dvb-core/dvb_vb2.o: In function `dvb_vb2_stream_off':
>> drivers/media/dvb-core/dvb_vb2.c:238: undefined reference to `vb2_buffer_done'
>> drivers/media/dvb-core/dvb_vb2.c:242: undefined reference to `vb2_core_streamoff'
drivers/media/dvb-core/dvb_vb2.o: In function `dvb_vb2_fill_buffer':
drivers/media/dvb-core/dvb_vb2.c:294: undefined reference to `vb2_buffer_done'
>> drivers/media/dvb-core/dvb_vb2.c:301: undefined reference to `vb2_plane_vaddr'
drivers/media/dvb-core/dvb_vb2.c:310: undefined reference to `vb2_buffer_done'
drivers/media/dvb-core/dvb_vb2.c:317: undefined reference to `vb2_buffer_done'
drivers/media/dvb-core/dvb_vb2.o: In function `dvb_vb2_reqbufs':
>> drivers/media/dvb-core/dvb_vb2.c:336: undefined reference to `vb2_core_reqbufs'
drivers/media/dvb-core/dvb_vb2.o: In function `dvb_vb2_querybuf':
>> drivers/media/dvb-core/dvb_vb2.c:352: undefined reference to `vb2_core_querybuf'
drivers/media/dvb-core/dvb_vb2.o: In function `dvb_vb2_expbuf':
>> drivers/media/dvb-core/dvb_vb2.c:362: undefined reference to `vb2_core_expbuf'
drivers/media/dvb-core/dvb_vb2.o: In function `dvb_vb2_qbuf':
>> drivers/media/dvb-core/dvb_vb2.c:378: undefined reference to `vb2_core_qbuf'
drivers/media/dvb-core/dvb_vb2.o: In function `dvb_vb2_dqbuf':
>> drivers/media/dvb-core/dvb_vb2.c:393: undefined reference to `vb2_core_dqbuf'
drivers/media/dvb-core/dvb_vb2.o: In function `dvb_vb2_mmap':
>> drivers/media/dvb-core/dvb_vb2.c:407: undefined reference to `vb2_mmap'
drivers/media/dvb-core/dvb_vb2.o: In function `dvb_vb2_poll':
>> drivers/media/dvb-core/dvb_vb2.c:421: undefined reference to `vb2_core_poll'
vim +173 drivers/media/dvb-core/dvb_vb2.c
151
152 /*
153 * Videobuf operations
154 */
155 int dvb_vb2_init(struct dvb_vb2_ctx *ctx, const char *name, int nonblocking)
156 {
157 struct vb2_queue *q = &ctx->vb_q;
158 int ret;
159
160 memset(ctx, 0, sizeof(struct dvb_vb2_ctx));
161 q->type = DVB_BUF_TYPE_CAPTURE;
162 /**capture type*/
163 q->is_output = 0;
164 /**only mmap is supported currently*/
165 q->io_modes = VB2_MMAP;
166 q->drv_priv = ctx;
167 q->buf_struct_size = sizeof(struct dvb_buffer);
168 q->min_buffers_needed = 1;
169 q->ops = &dvb_vb2_qops;
> 170 q->mem_ops = &vb2_vmalloc_memops;
171 q->buf_ops = &dvb_vb2_buf_ops;
172 q->num_buffers = 0;
> 173 ret = vb2_core_queue_init(q);
174 if (ret) {
175 ctx->state = DVB_VB2_STATE_NONE;
176 dprintk(1, "[%s] errno=%d\n", ctx->name, ret);
177 return ret;
178 }
179
180 mutex_init(&ctx->mutex);
181 spin_lock_init(&ctx->slock);
182 INIT_LIST_HEAD(&ctx->dvb_q);
183
184 strncpy(ctx->name, name, DVB_VB2_NAME_MAX);
185 ctx->nonblocking = nonblocking;
186 ctx->state = DVB_VB2_STATE_INIT;
187
188 dprintk(3, "[%s]\n", ctx->name);
189
190 return 0;
191 }
192
193 int dvb_vb2_release(struct dvb_vb2_ctx *ctx)
194 {
195 struct vb2_queue *q = (struct vb2_queue *)&ctx->vb_q;
196
197 if (ctx->state & DVB_VB2_STATE_INIT)
> 198 vb2_core_queue_release(q);
199
200 ctx->state = DVB_VB2_STATE_NONE;
201 dprintk(3, "[%s]\n", ctx->name);
202
203 return 0;
204 }
205
206 int dvb_vb2_stream_on(struct dvb_vb2_ctx *ctx)
207 {
208 struct vb2_queue *q = &ctx->vb_q;
209 int ret;
210
> 211 ret = vb2_core_streamon(q, q->type);
212 if (ret) {
213 ctx->state = DVB_VB2_STATE_NONE;
214 dprintk(1, "[%s] errno=%d\n", ctx->name, ret);
215 return ret;
216 }
217 ctx->state |= DVB_VB2_STATE_STREAMON;
218 dprintk(3, "[%s]\n", ctx->name);
219
220 return 0;
221 }
222
223 int dvb_vb2_stream_off(struct dvb_vb2_ctx *ctx)
224 {
225 struct vb2_queue *q = (struct vb2_queue *)&ctx->vb_q;
226 int ret;
227 unsigned long flags = 0;
228
229 ctx->state &= ~DVB_VB2_STATE_STREAMON;
230 spin_lock_irqsave(&ctx->slock, flags);
231 while (!list_empty(&ctx->dvb_q)) {
232 struct dvb_buffer *buf;
233
234 buf = list_entry(ctx->dvb_q.next,
235 struct dvb_buffer, list);
236 list_del(&buf->list);
237 spin_unlock_irqrestore(&ctx->slock, flags);
> 238 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
239 spin_lock_irqsave(&ctx->slock, flags);
240 }
241 spin_unlock_irqrestore(&ctx->slock, flags);
> 242 ret = vb2_core_streamoff(q, q->type);
243 if (ret) {
244 ctx->state = DVB_VB2_STATE_NONE;
245 dprintk(1, "[%s] errno=%d\n", ctx->name, ret);
246 return ret;
247 }
248 dprintk(3, "[%s]\n", ctx->name);
249
250 return 0;
251 }
252
253 int dvb_vb2_is_streaming(struct dvb_vb2_ctx *ctx)
254 {
255 return (ctx->state & DVB_VB2_STATE_STREAMON);
256 }
257
258 int dvb_vb2_fill_buffer(struct dvb_vb2_ctx *ctx,
259 const unsigned char *src, int len)
260 {
261 unsigned long flags = 0;
262 void *vbuf = NULL;
263 int todo = len;
264 unsigned char *psrc = (unsigned char *)src;
265 int ll = 0;
266
267 dprintk(3, "[%s] %d bytes are rcvd\n", ctx->name, len);
268 if (!src) {
269 dprintk(3, "[%s]:NULL pointer src\n", ctx->name);
270 /**normal case: This func is called twice from demux driver
271 * once with valid src pointer, second time with NULL pointer
272 */
273 return 0;
274 }
275 while (todo) {
276 if (!ctx->buf) {
277 spin_lock_irqsave(&ctx->slock, flags);
278 if (list_empty(&ctx->dvb_q)) {
279 spin_unlock_irqrestore(&ctx->slock, flags);
280 dprintk(3, "[%s] Buffer overflow!!!\n",
281 ctx->name);
282 break;
283 }
284
285 ctx->buf = list_entry(ctx->dvb_q.next,
286 struct dvb_buffer, list);
287 list_del(&ctx->buf->list);
288 spin_unlock_irqrestore(&ctx->slock, flags);
289 ctx->remain = vb2_plane_size(&ctx->buf->vb, 0);
290 ctx->offset = 0;
291 }
292
293 if (!dvb_vb2_is_streaming(ctx)) {
> 294 vb2_buffer_done(&ctx->buf->vb, VB2_BUF_STATE_ERROR);
295 ctx->buf = NULL;
296 break;
297 }
298
299 /* Fill buffer */
300 ll = min(todo, ctx->remain);
> 301 vbuf = vb2_plane_vaddr(&ctx->buf->vb, 0);
302 memcpy(vbuf + ctx->offset, psrc, ll);
303 todo -= ll;
304 psrc += ll;
305
306 ctx->remain -= ll;
307 ctx->offset += ll;
308
309 if (ctx->remain == 0) {
> 310 vb2_buffer_done(&ctx->buf->vb, VB2_BUF_STATE_DONE);
311 ctx->buf = NULL;
312 }
313 }
314
315 if (ctx->nonblocking && ctx->buf) {
316 vb2_set_plane_payload(&ctx->buf->vb, 0, ll);
317 vb2_buffer_done(&ctx->buf->vb, VB2_BUF_STATE_DONE);
318 ctx->buf = NULL;
319 }
320
321 if (todo)
322 dprintk(1, "[%s] %d bytes are dropped.\n", ctx->name, todo);
323 else
324 dprintk(3, "[%s]\n", ctx->name);
325
326 dprintk(3, "[%s] %d bytes are copied\n", ctx->name, len - todo);
327 return (len - todo);
328 }
329
330 int dvb_vb2_reqbufs(struct dvb_vb2_ctx *ctx, struct dmx_requestbuffers *req)
331 {
332 int ret;
333
334 ctx->buf_siz = req->size;
335 ctx->buf_cnt = req->count;
> 336 ret = vb2_core_reqbufs(&ctx->vb_q, VB2_MEMORY_MMAP, &req->count);
337 if (ret) {
338 ctx->state = DVB_VB2_STATE_NONE;
339 dprintk(1, "[%s] count=%d size=%d errno=%d\n", ctx->name,
340 ctx->buf_cnt, ctx->buf_siz, ret);
341 return ret;
342 }
343 ctx->state |= DVB_VB2_STATE_REQBUFS;
344 dprintk(3, "[%s] count=%d size=%d\n", ctx->name,
345 ctx->buf_cnt, ctx->buf_siz);
346
347 return 0;
348 }
349
350 int dvb_vb2_querybuf(struct dvb_vb2_ctx *ctx, struct dmx_buffer *b)
351 {
> 352 vb2_core_querybuf(&ctx->vb_q, b->index, b);
353 dprintk(3, "[%s] index=%d\n", ctx->name, b->index);
354 return 0;
355 }
356
357 int dvb_vb2_expbuf(struct dvb_vb2_ctx *ctx, struct dmx_exportbuffer *exp)
358 {
359 struct vb2_queue *q = &ctx->vb_q;
360 int ret;
361
> 362 ret = vb2_core_expbuf(&ctx->vb_q, &exp->fd, q->type, exp->index,
363 0, exp->flags);
364 if (ret) {
365 dprintk(1, "[%s] index=%d errno=%d\n", ctx->name,
366 exp->index, ret);
367 return ret;
368 }
369 dprintk(3, "[%s] index=%d fd=%d\n", ctx->name, exp->index, exp->fd);
370
371 return 0;
372 }
373
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
Attachment:
.config.gz
Description: application/gzip
