Hi Holger, [auto build test ERROR on char-misc/char-misc-testing] [also build test ERROR on v4.9] [cannot apply to ljones-mfd/for-mfd-next next-20161213] [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/Holger-Dengler/Eberspaecher-Flexcard-PMC-II-base-support/20161214-082350 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/dma/flexcard/core.c: In function 'flexcard_dma_setup': >> drivers/dma/flexcard/core.c:92:2: error: implicit declaration of function 'writeq' [-Werror=implicit-function-declaration] writeq(dma->phys, &dma->reg->dma_cba); ^~~~~~ cc1: some warnings being treated as errors vim +/writeq +92 drivers/dma/flexcard/core.c 86 return ret; 87 88 writel(0x0, &dma->reg->dma_rptr); 89 writel(0x0, &dma->reg->dma_wptr); 90 writel(0x0, &dma->reg->dma_ctrl); 91 > 92 writeq(dma->phys, &dma->reg->dma_cba); 93 writel(FLEXCARD_DMA_BUF_SIZE, &dma->reg->dma_cbs); 94 95 return ret; --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation