Hi Takashi, I love your patch! Yet something to improve: [auto build test ERROR on sound/for-next] [also build test ERROR on next-20191115] [cannot apply to v5.4-rc7] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Takashi-Iwai/ALSA-pcm-API-cleanups-and-extensions/20191117-170136 base: https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git for-next config: i386-defconfig (attached as .config) compiler: gcc-7 (Debian 7.4.0-14) 7.4.0 reproduce: # save the attached .config to linux build tree make ARCH=i386 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): sound/core/pcm_memory.c: In function 'snd_pcm_lib_malloc_pages': >> sound/core/pcm_memory.c:351:6: error: implicit declaration of function 'PCM_RUNTIME_CHECK'; did you mean 'APM_FUNC_INST_CHECK'? [-Werror=implicit-function-declaration] if (PCM_RUNTIME_CHECK(substream)) ^~~~~~~~~~~~~~~~~ APM_FUNC_INST_CHECK cc1: some warnings being treated as errors vim +351 sound/core/pcm_memory.c 51e9f2e665bf2b Takashi Iwai 2008-07-30 334 ^1da177e4c3f41 Linus Torvalds 2005-04-16 335 /** ^1da177e4c3f41 Linus Torvalds 2005-04-16 336 * snd_pcm_lib_malloc_pages - allocate the DMA buffer ^1da177e4c3f41 Linus Torvalds 2005-04-16 337 * @substream: the substream to allocate the DMA buffer to ^1da177e4c3f41 Linus Torvalds 2005-04-16 338 * @size: the requested buffer size in bytes ^1da177e4c3f41 Linus Torvalds 2005-04-16 339 * ^1da177e4c3f41 Linus Torvalds 2005-04-16 340 * Allocates the DMA buffer on the BUS type given earlier to ^1da177e4c3f41 Linus Torvalds 2005-04-16 341 * snd_pcm_lib_preallocate_xxx_pages(). ^1da177e4c3f41 Linus Torvalds 2005-04-16 342 * eb7c06e8e9c93b Yacine Belkadi 2013-03-11 343 * Return: 1 if the buffer is changed, 0 if not changed, or a negative ^1da177e4c3f41 Linus Torvalds 2005-04-16 344 * code on failure. ^1da177e4c3f41 Linus Torvalds 2005-04-16 345 */ 877211f5e1b119 Takashi Iwai 2005-11-17 346 int snd_pcm_lib_malloc_pages(struct snd_pcm_substream *substream, size_t size) ^1da177e4c3f41 Linus Torvalds 2005-04-16 347 { 877211f5e1b119 Takashi Iwai 2005-11-17 348 struct snd_pcm_runtime *runtime; ^1da177e4c3f41 Linus Torvalds 2005-04-16 349 struct snd_dma_buffer *dmab = NULL; ^1da177e4c3f41 Linus Torvalds 2005-04-16 350 7eaa943c8ed8e9 Takashi Iwai 2008-08-08 @351 if (PCM_RUNTIME_CHECK(substream)) 7eaa943c8ed8e9 Takashi Iwai 2008-08-08 352 return -EINVAL; 7eaa943c8ed8e9 Takashi Iwai 2008-08-08 353 if (snd_BUG_ON(substream->dma_buffer.dev.type == 7eaa943c8ed8e9 Takashi Iwai 2008-08-08 354 SNDRV_DMA_TYPE_UNKNOWN)) 7eaa943c8ed8e9 Takashi Iwai 2008-08-08 355 return -EINVAL; ^1da177e4c3f41 Linus Torvalds 2005-04-16 356 runtime = substream->runtime; ^1da177e4c3f41 Linus Torvalds 2005-04-16 357 ^1da177e4c3f41 Linus Torvalds 2005-04-16 358 if (runtime->dma_buffer_p) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 359 /* perphaps, we might free the large DMA memory region ^1da177e4c3f41 Linus Torvalds 2005-04-16 360 to save some space here, but the actual solution ^1da177e4c3f41 Linus Torvalds 2005-04-16 361 costs us less time */ ^1da177e4c3f41 Linus Torvalds 2005-04-16 362 if (runtime->dma_buffer_p->bytes >= size) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 363 runtime->dma_bytes = size; ^1da177e4c3f41 Linus Torvalds 2005-04-16 364 return 0; /* ok, do not change */ ^1da177e4c3f41 Linus Torvalds 2005-04-16 365 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 366 snd_pcm_lib_free_pages(substream); ^1da177e4c3f41 Linus Torvalds 2005-04-16 367 } 877211f5e1b119 Takashi Iwai 2005-11-17 368 if (substream->dma_buffer.area != NULL && 877211f5e1b119 Takashi Iwai 2005-11-17 369 substream->dma_buffer.bytes >= size) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 370 dmab = &substream->dma_buffer; /* use the pre-allocated buffer */ ^1da177e4c3f41 Linus Torvalds 2005-04-16 371 } else { ca2c0966562cfb Takashi Iwai 2005-09-09 372 dmab = kzalloc(sizeof(*dmab), GFP_KERNEL); ^1da177e4c3f41 Linus Torvalds 2005-04-16 373 if (! dmab) ^1da177e4c3f41 Linus Torvalds 2005-04-16 374 return -ENOMEM; ^1da177e4c3f41 Linus Torvalds 2005-04-16 375 dmab->dev = substream->dma_buffer.dev; ^1da177e4c3f41 Linus Torvalds 2005-04-16 376 if (snd_dma_alloc_pages(substream->dma_buffer.dev.type, ^1da177e4c3f41 Linus Torvalds 2005-04-16 377 substream->dma_buffer.dev.dev, ^1da177e4c3f41 Linus Torvalds 2005-04-16 378 size, dmab) < 0) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 379 kfree(dmab); ^1da177e4c3f41 Linus Torvalds 2005-04-16 380 return -ENOMEM; ^1da177e4c3f41 Linus Torvalds 2005-04-16 381 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 382 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 383 snd_pcm_set_runtime_buffer(substream, dmab); ^1da177e4c3f41 Linus Torvalds 2005-04-16 384 runtime->dma_bytes = size; ^1da177e4c3f41 Linus Torvalds 2005-04-16 385 return 1; /* area was changed */ ^1da177e4c3f41 Linus Torvalds 2005-04-16 386 } e88e8ae639a490 Takashi Iwai 2006-04-28 387 EXPORT_SYMBOL(snd_pcm_lib_malloc_pages); e88e8ae639a490 Takashi Iwai 2006-04-28 388 :::::: The code at line 351 was first introduced by commit :::::: 7eaa943c8ed8e91e05d0f5d0dc7a18e3319b45cf ALSA: Kill snd_assert() in sound/core/* :::::: TO: Takashi Iwai <tiwai@xxxxxxx> :::::: CC: Jaroslav Kysela <perex@xxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx Intel Corporation
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