Hi Jiada, [auto build test ERROR on next-20170207] url: https://github.com/0day-ci/linux/commits/Jiada-Wang/improve-imx-spi-performance/20170208-142524 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/spi/spi-imx.c: In function 'spi_imx_dma_transfer': >> drivers/spi/spi-imx.c:1298:3: error: implicit declaration of function 'dmac_flush_range' [-Werror=implicit-function-declaration] dmac_flush_range(transfer->rx_buf, ^~~~~~~~~~~~~~~~ >> drivers/spi/spi-imx.c:1300:3: error: implicit declaration of function 'outer_flush_range' [-Werror=implicit-function-declaration] outer_flush_range(virt_to_phys(transfer->rx_buf), ^~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/dmac_flush_range +1298 drivers/spi/spi-imx.c 1292 1293 if (spi_imx->bpw_w == 1) 1294 spi_imx_u32_swap_u8(transfer, (u8 *)transfer->rx_buf); 1295 if (spi_imx->bpw_w == 2) 1296 spi_imx_u32_swap_u16(transfer, 1297 (u16 *)transfer->rx_buf); > 1298 dmac_flush_range(transfer->rx_buf, 1299 transfer->rx_buf + transfer->len); > 1300 outer_flush_range(virt_to_phys(transfer->rx_buf), 1301 virt_to_phys(transfer->rx_buf) + 1302 transfer->len); 1303 } --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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