Hi olivier, [auto build test WARNING on asoc/for-next] [also build test WARNING on v4.10-rc6 next-20170201] [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/olivier-moysan/Add-STM32-SAI-support/20170202-004848 base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next config: x86_64-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=x86_64 All warnings (new ones prefixed by >>): In file included from sound/soc/stm/stm32_sai_sub.c:24:0: sound/soc/stm/stm32_sai_sub.c: In function 'stm32_sai_startup': >> sound/soc/stm/stm32_sai_sub.c:394:21: warning: large integer implicitly truncated to unsigned type [-Woverflow] SAI_XSR_MASK, ~SAI_XSR_MASK); ^ include/linux/regmap.h:70:42: note: in definition of macro 'regmap_update_bits' regmap_update_bits_base(map, reg, mask, val, NULL, false, false) ^~~ sound/soc/stm/stm32_sai_sub.c: In function 'stm32_sai_trigger': sound/soc/stm/stm32_sai_sub.c:640:24: warning: large integer implicitly truncated to unsigned type [-Woverflow] SAI_XCR1_DMAEN, ~SAI_XCR1_DMAEN); ^ include/linux/regmap.h:70:42: note: in definition of macro 'regmap_update_bits' regmap_update_bits_base(map, reg, mask, val, NULL, false, false) ^~~ sound/soc/stm/stm32_sai_sub.c:643:23: warning: large integer implicitly truncated to unsigned type [-Woverflow] SAI_XCR1_SAIEN, ~SAI_XCR1_SAIEN); ^ include/linux/regmap.h:70:42: note: in definition of macro 'regmap_update_bits' regmap_update_bits_base(map, reg, mask, val, NULL, false, false) ^~~ sound/soc/stm/stm32_sai_sub.c: In function 'stm32_sai_sub_probe': >> sound/soc/stm/stm32_sai_sub.c:844:12: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] sai->id = (int)of_id->data; ^ sound/soc/stm/stm32_sai_sub.c: In function 'stm32_sai_hw_params': sound/soc/stm/stm32_sai_sub.c:452:11: warning: 'cr1_mask' may be used uninitialized in this function [-Wmaybe-uninitialized] cr1_mask |= SAI_XCR1_MONO; sound/soc/stm/stm32_sai_sub.c:422:11: note: 'cr1_mask' was declared here int cr1, cr1_mask, ret; ^~~~~~~~ sound/soc/stm/stm32_sai_sub.c:578:7: warning: 'mask' may be used uninitialized in this function [-Wmaybe-uninitialized] mask |= SAI_XCR1_MCKDIV_MASK; sound/soc/stm/stm32_sai_sub.c:550:11: note: 'mask' was declared here int cr1, mask, div = 0; ^~~~ sound/soc/stm/stm32_sai_sub.c: In function 'stm32_sai_sub_probe': sound/soc/stm/stm32_sai_sub.c:788:3: warning: 'direction' may be used uninitialized in this function [-Wmaybe-uninitialized] dev_err(&pdev->dev, "Unsupported direction %s\n", direction); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ sound/soc/stm/stm32_sai_sub.c:765:14: note: 'direction' was declared here const char *direction; ^~~~~~~~~ vim +394 sound/soc/stm/stm32_sai_sub.c 378 static int stm32_sai_startup(struct snd_pcm_substream *substream, 379 struct snd_soc_dai *cpu_dai) 380 { 381 struct stm32_sai_sub_data *sai = snd_soc_dai_get_drvdata(cpu_dai); 382 int imr, cr2, ret; 383 384 sai->substream = substream; 385 386 ret = clk_prepare_enable(sai->sai_ck); 387 if (ret < 0) { 388 dev_err(cpu_dai->dev, "failed to enable clock: %d\n", ret); 389 return ret; 390 } 391 392 /* Enable ITs */ 393 regmap_update_bits(sai->regmap, STM_SAI_SR_REGX, > 394 SAI_XSR_MASK, ~SAI_XSR_MASK); 395 396 regmap_update_bits(sai->regmap, STM_SAI_CLRFR_REGX, 397 SAI_XCLRFR_MASK, SAI_XCLRFR_MASK); 398 399 imr = SAI_XIMR_OVRUDRIE; 400 if (STM_SAI_IS_CAPTURE(sai)) { 401 regmap_read(sai->regmap, STM_SAI_CR2_REGX, &cr2); 402 if (cr2 & SAI_XCR2_MUTECNT_MASK) --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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