Hi Kuppuswamy, [auto build test ERROR on linus/master] [also build test ERROR on next-20170707] [cannot apply to v4.12] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/sathyanarayanan-kuppuswamy-linux-intel-com/mux-consumer-Add-dummy-functions-for-CONFIG_MULTIPLEXER-case/20170708-194501 config: i386-allmodconfig (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): >> drivers/mux/mux-core.c:290:14: error: redefinition of 'mux_control_states' unsigned int mux_control_states(struct mux_control *mux) ^~~~~~~~~~~~~~~~~~ In file included from drivers/mux/mux-core.c:21:0: include/linux/mux/consumer.h:34:14: note: previous definition of 'mux_control_states' was here unsigned int mux_control_states(struct mux_control *mux) ^~~~~~~~~~~~~~~~~~ >> drivers/mux/mux-core.c:337:5: error: redefinition of 'mux_control_select' int mux_control_select(struct mux_control *mux, unsigned int state) ^~~~~~~~~~~~~~~~~~ In file included from drivers/mux/mux-core.c:21:0: include/linux/mux/consumer.h:39:18: note: previous definition of 'mux_control_select' was here int __must_check mux_control_select(struct mux_control *mux, ^~~~~~~~~~~~~~~~~~ >> drivers/mux/mux-core.c:369:5: error: redefinition of 'mux_control_try_select' int mux_control_try_select(struct mux_control *mux, unsigned int state) ^~~~~~~~~~~~~~~~~~~~~~ In file included from drivers/mux/mux-core.c:21:0: include/linux/mux/consumer.h:45:18: note: previous definition of 'mux_control_try_select' was here int __must_check mux_control_try_select(struct mux_control *mux, ^~~~~~~~~~~~~~~~~~~~~~ >> drivers/mux/mux-core.c:397:5: error: redefinition of 'mux_control_deselect' int mux_control_deselect(struct mux_control *mux) ^~~~~~~~~~~~~~~~~~~~ In file included from drivers/mux/mux-core.c:21:0: include/linux/mux/consumer.h:51:5: note: previous definition of 'mux_control_deselect' was here int mux_control_deselect(struct mux_control *mux) ^~~~~~~~~~~~~~~~~~~~ >> drivers/mux/mux-core.c:432:21: error: redefinition of 'mux_control_get' struct mux_control *mux_control_get(struct device *dev, const char *mux_name) ^~~~~~~~~~~~~~~ In file included from drivers/mux/mux-core.c:21:0: include/linux/mux/consumer.h:56:21: note: previous definition of 'mux_control_get' was here struct mux_control *mux_control_get(struct device *dev, const char *mux_name) ^~~~~~~~~~~~~~~ >> drivers/mux/mux-core.c:493:6: error: redefinition of 'mux_control_put' void mux_control_put(struct mux_control *mux) ^~~~~~~~~~~~~~~ In file included from drivers/mux/mux-core.c:21:0: include/linux/mux/consumer.h:61:6: note: previous definition of 'mux_control_put' was here void mux_control_put(struct mux_control *mux) {} ^~~~~~~~~~~~~~~ >> drivers/mux/mux-core.c:514:21: error: redefinition of 'devm_mux_control_get' struct mux_control *devm_mux_control_get(struct device *dev, ^~~~~~~~~~~~~~~~~~~~ In file included from drivers/mux/mux-core.c:21:0: include/linux/mux/consumer.h:63:21: note: previous definition of 'devm_mux_control_get' was here struct mux_control *devm_mux_control_get(struct device *dev, ^~~~~~~~~~~~~~~~~~~~ vim +/mux_control_states +290 drivers/mux/mux-core.c a3b02a9c Peter Rosin 2017-05-14 284 /** a3b02a9c Peter Rosin 2017-05-14 285 * mux_control_states() - Query the number of multiplexer states. a3b02a9c Peter Rosin 2017-05-14 286 * @mux: The mux-control to query. a3b02a9c Peter Rosin 2017-05-14 287 * a3b02a9c Peter Rosin 2017-05-14 288 * Return: The number of multiplexer states. a3b02a9c Peter Rosin 2017-05-14 289 */ a3b02a9c Peter Rosin 2017-05-14 @290 unsigned int mux_control_states(struct mux_control *mux) a3b02a9c Peter Rosin 2017-05-14 291 { a3b02a9c Peter Rosin 2017-05-14 292 return mux->states; a3b02a9c Peter Rosin 2017-05-14 293 } a3b02a9c Peter Rosin 2017-05-14 294 EXPORT_SYMBOL_GPL(mux_control_states); a3b02a9c Peter Rosin 2017-05-14 295 a3b02a9c Peter Rosin 2017-05-14 296 /* a3b02a9c Peter Rosin 2017-05-14 297 * The mux->lock must be down when calling this function. a3b02a9c Peter Rosin 2017-05-14 298 */ a3b02a9c Peter Rosin 2017-05-14 299 static int __mux_control_select(struct mux_control *mux, int state) a3b02a9c Peter Rosin 2017-05-14 300 { a3b02a9c Peter Rosin 2017-05-14 301 int ret; a3b02a9c Peter Rosin 2017-05-14 302 a3b02a9c Peter Rosin 2017-05-14 303 if (WARN_ON(state < 0 || state >= mux->states)) a3b02a9c Peter Rosin 2017-05-14 304 return -EINVAL; a3b02a9c Peter Rosin 2017-05-14 305 a3b02a9c Peter Rosin 2017-05-14 306 if (mux->cached_state == state) a3b02a9c Peter Rosin 2017-05-14 307 return 0; a3b02a9c Peter Rosin 2017-05-14 308 a3b02a9c Peter Rosin 2017-05-14 309 ret = mux_control_set(mux, state); a3b02a9c Peter Rosin 2017-05-14 310 if (ret >= 0) a3b02a9c Peter Rosin 2017-05-14 311 return 0; a3b02a9c Peter Rosin 2017-05-14 312 a3b02a9c Peter Rosin 2017-05-14 313 /* The mux update failed, try to revert if appropriate... */ a3b02a9c Peter Rosin 2017-05-14 314 if (mux->idle_state != MUX_IDLE_AS_IS) a3b02a9c Peter Rosin 2017-05-14 315 mux_control_set(mux, mux->idle_state); a3b02a9c Peter Rosin 2017-05-14 316 a3b02a9c Peter Rosin 2017-05-14 317 return ret; a3b02a9c Peter Rosin 2017-05-14 318 } a3b02a9c Peter Rosin 2017-05-14 319 a3b02a9c Peter Rosin 2017-05-14 320 /** a3b02a9c Peter Rosin 2017-05-14 321 * mux_control_select() - Select the given multiplexer state. a3b02a9c Peter Rosin 2017-05-14 322 * @mux: The mux-control to request a change of state from. a3b02a9c Peter Rosin 2017-05-14 323 * @state: The new requested state. a3b02a9c Peter Rosin 2017-05-14 324 * a3b02a9c Peter Rosin 2017-05-14 325 * On successfully selecting the mux-control state, it will be locked until a3b02a9c Peter Rosin 2017-05-14 326 * there is a call to mux_control_deselect(). If the mux-control is already a3b02a9c Peter Rosin 2017-05-14 327 * selected when mux_control_select() is called, the caller will be blocked a3b02a9c Peter Rosin 2017-05-14 328 * until mux_control_deselect() is called (by someone else). a3b02a9c Peter Rosin 2017-05-14 329 * a3b02a9c Peter Rosin 2017-05-14 330 * Therefore, make sure to call mux_control_deselect() when the operation is a3b02a9c Peter Rosin 2017-05-14 331 * complete and the mux-control is free for others to use, but do not call a3b02a9c Peter Rosin 2017-05-14 332 * mux_control_deselect() if mux_control_select() fails. a3b02a9c Peter Rosin 2017-05-14 333 * a3b02a9c Peter Rosin 2017-05-14 334 * Return: 0 when the mux-control state has the requested state or a negative a3b02a9c Peter Rosin 2017-05-14 335 * errno on error. a3b02a9c Peter Rosin 2017-05-14 336 */ a3b02a9c Peter Rosin 2017-05-14 @337 int mux_control_select(struct mux_control *mux, unsigned int state) a3b02a9c Peter Rosin 2017-05-14 338 { a3b02a9c Peter Rosin 2017-05-14 339 int ret; a3b02a9c Peter Rosin 2017-05-14 340 a3b02a9c Peter Rosin 2017-05-14 341 ret = down_killable(&mux->lock); a3b02a9c Peter Rosin 2017-05-14 342 if (ret < 0) a3b02a9c Peter Rosin 2017-05-14 343 return ret; a3b02a9c Peter Rosin 2017-05-14 344 a3b02a9c Peter Rosin 2017-05-14 345 ret = __mux_control_select(mux, state); a3b02a9c Peter Rosin 2017-05-14 346 a3b02a9c Peter Rosin 2017-05-14 347 if (ret < 0) a3b02a9c Peter Rosin 2017-05-14 348 up(&mux->lock); a3b02a9c Peter Rosin 2017-05-14 349 a3b02a9c Peter Rosin 2017-05-14 350 return ret; a3b02a9c Peter Rosin 2017-05-14 351 } a3b02a9c Peter Rosin 2017-05-14 352 EXPORT_SYMBOL_GPL(mux_control_select); a3b02a9c Peter Rosin 2017-05-14 353 a3b02a9c Peter Rosin 2017-05-14 354 /** a3b02a9c Peter Rosin 2017-05-14 355 * mux_control_try_select() - Try to select the given multiplexer state. a3b02a9c Peter Rosin 2017-05-14 356 * @mux: The mux-control to request a change of state from. a3b02a9c Peter Rosin 2017-05-14 357 * @state: The new requested state. a3b02a9c Peter Rosin 2017-05-14 358 * a3b02a9c Peter Rosin 2017-05-14 359 * On successfully selecting the mux-control state, it will be locked until a3b02a9c Peter Rosin 2017-05-14 360 * mux_control_deselect() called. a3b02a9c Peter Rosin 2017-05-14 361 * a3b02a9c Peter Rosin 2017-05-14 362 * Therefore, make sure to call mux_control_deselect() when the operation is a3b02a9c Peter Rosin 2017-05-14 363 * complete and the mux-control is free for others to use, but do not call a3b02a9c Peter Rosin 2017-05-14 364 * mux_control_deselect() if mux_control_try_select() fails. a3b02a9c Peter Rosin 2017-05-14 365 * a3b02a9c Peter Rosin 2017-05-14 366 * Return: 0 when the mux-control state has the requested state or a negative a3b02a9c Peter Rosin 2017-05-14 367 * errno on error. Specifically -EBUSY if the mux-control is contended. a3b02a9c Peter Rosin 2017-05-14 368 */ a3b02a9c Peter Rosin 2017-05-14 @369 int mux_control_try_select(struct mux_control *mux, unsigned int state) a3b02a9c Peter Rosin 2017-05-14 370 { a3b02a9c Peter Rosin 2017-05-14 371 int ret; a3b02a9c Peter Rosin 2017-05-14 372 a3b02a9c Peter Rosin 2017-05-14 373 if (down_trylock(&mux->lock)) a3b02a9c Peter Rosin 2017-05-14 374 return -EBUSY; a3b02a9c Peter Rosin 2017-05-14 375 a3b02a9c Peter Rosin 2017-05-14 376 ret = __mux_control_select(mux, state); a3b02a9c Peter Rosin 2017-05-14 377 a3b02a9c Peter Rosin 2017-05-14 378 if (ret < 0) a3b02a9c Peter Rosin 2017-05-14 379 up(&mux->lock); a3b02a9c Peter Rosin 2017-05-14 380 a3b02a9c Peter Rosin 2017-05-14 381 return ret; a3b02a9c Peter Rosin 2017-05-14 382 } a3b02a9c Peter Rosin 2017-05-14 383 EXPORT_SYMBOL_GPL(mux_control_try_select); a3b02a9c Peter Rosin 2017-05-14 384 a3b02a9c Peter Rosin 2017-05-14 385 /** a3b02a9c Peter Rosin 2017-05-14 386 * mux_control_deselect() - Deselect the previously selected multiplexer state. a3b02a9c Peter Rosin 2017-05-14 387 * @mux: The mux-control to deselect. a3b02a9c Peter Rosin 2017-05-14 388 * a3b02a9c Peter Rosin 2017-05-14 389 * It is required that a single call is made to mux_control_deselect() for a3b02a9c Peter Rosin 2017-05-14 390 * each and every successful call made to either of mux_control_select() or a3b02a9c Peter Rosin 2017-05-14 391 * mux_control_try_select(). a3b02a9c Peter Rosin 2017-05-14 392 * a3b02a9c Peter Rosin 2017-05-14 393 * Return: 0 on success and a negative errno on error. An error can only a3b02a9c Peter Rosin 2017-05-14 394 * occur if the mux has an idle state. Note that even if an error occurs, the a3b02a9c Peter Rosin 2017-05-14 395 * mux-control is unlocked and is thus free for the next access. a3b02a9c Peter Rosin 2017-05-14 396 */ a3b02a9c Peter Rosin 2017-05-14 @397 int mux_control_deselect(struct mux_control *mux) a3b02a9c Peter Rosin 2017-05-14 398 { a3b02a9c Peter Rosin 2017-05-14 399 int ret = 0; a3b02a9c Peter Rosin 2017-05-14 400 a3b02a9c Peter Rosin 2017-05-14 401 if (mux->idle_state != MUX_IDLE_AS_IS && a3b02a9c Peter Rosin 2017-05-14 402 mux->idle_state != mux->cached_state) a3b02a9c Peter Rosin 2017-05-14 403 ret = mux_control_set(mux, mux->idle_state); a3b02a9c Peter Rosin 2017-05-14 404 a3b02a9c Peter Rosin 2017-05-14 405 up(&mux->lock); a3b02a9c Peter Rosin 2017-05-14 406 a3b02a9c Peter Rosin 2017-05-14 407 return ret; a3b02a9c Peter Rosin 2017-05-14 408 } a3b02a9c Peter Rosin 2017-05-14 409 EXPORT_SYMBOL_GPL(mux_control_deselect); a3b02a9c Peter Rosin 2017-05-14 410 a3b02a9c Peter Rosin 2017-05-14 411 static int of_dev_node_match(struct device *dev, const void *data) a3b02a9c Peter Rosin 2017-05-14 412 { a3b02a9c Peter Rosin 2017-05-14 413 return dev->of_node == data; a3b02a9c Peter Rosin 2017-05-14 414 } a3b02a9c Peter Rosin 2017-05-14 415 a3b02a9c Peter Rosin 2017-05-14 416 static struct mux_chip *of_find_mux_chip_by_node(struct device_node *np) a3b02a9c Peter Rosin 2017-05-14 417 { a3b02a9c Peter Rosin 2017-05-14 418 struct device *dev; a3b02a9c Peter Rosin 2017-05-14 419 a3b02a9c Peter Rosin 2017-05-14 420 dev = class_find_device(&mux_class, NULL, np, of_dev_node_match); a3b02a9c Peter Rosin 2017-05-14 421 a3b02a9c Peter Rosin 2017-05-14 422 return dev ? to_mux_chip(dev) : NULL; a3b02a9c Peter Rosin 2017-05-14 423 } a3b02a9c Peter Rosin 2017-05-14 424 a3b02a9c Peter Rosin 2017-05-14 425 /** a3b02a9c Peter Rosin 2017-05-14 426 * mux_control_get() - Get the mux-control for a device. a3b02a9c Peter Rosin 2017-05-14 427 * @dev: The device that needs a mux-control. a3b02a9c Peter Rosin 2017-05-14 428 * @mux_name: The name identifying the mux-control. a3b02a9c Peter Rosin 2017-05-14 429 * a3b02a9c Peter Rosin 2017-05-14 430 * Return: A pointer to the mux-control, or an ERR_PTR with a negative errno. a3b02a9c Peter Rosin 2017-05-14 431 */ a3b02a9c Peter Rosin 2017-05-14 @432 struct mux_control *mux_control_get(struct device *dev, const char *mux_name) a3b02a9c Peter Rosin 2017-05-14 433 { a3b02a9c Peter Rosin 2017-05-14 434 struct device_node *np = dev->of_node; a3b02a9c Peter Rosin 2017-05-14 435 struct of_phandle_args args; :::::: The code at line 290 was first introduced by commit :::::: a3b02a9c6591ce154cd44e2383406390a45b530c mux: minimal mux subsystem :::::: TO: Peter Rosin <[email protected]> :::::: CC: Greg Kroah-Hartman <[email protected]> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
.config.gz
Description: application/gzip
