Hi Jonathan, [auto build test WARNING on next-20170627] [cannot apply to v4.12-rc7 v4.12-rc6 v4.12-rc5 v4.12-rc7] [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/Jonathan-Liu/drm-sun4i-hdmi-Implement-I2C-adapter-for-A10s-DDC-bus/20170629-001335 config: arm-sunxi_defconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=arm All warnings (new ones prefixed by >>): drivers/gpu/drm/sun4i/sun4i_hdmi_i2c.c: In function 'fifo_transfer': >> drivers/gpu/drm/sun4i/sun4i_hdmi_i2c.c:65:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] int level = (int)(fifo_status & SUN4I_HDMI_DDC_FIFO_STATUS_LEVEL_MASK); ^~~ vim +65 drivers/gpu/drm/sun4i/sun4i_hdmi_i2c.c 49 int ret; 50 51 /* Wait until error or FIFO ready */ 52 ret = readl_poll_timeout(hdmi->base + SUN4I_HDMI_DDC_INT_STATUS_REG, 53 int_status, 54 is_err_status(int_status) || 55 is_fifo_flag_unset(hdmi, &fifo_status, flag), 56 min(len, SUN4I_HDMI_DDC_FIFO_SIZE) * byte_time, 57 100000); 58 59 if (is_err_status(int_status)) 60 return -EIO; 61 if (ret) 62 return -ETIMEDOUT; 63 64 /* Read FIFO level */ > 65 int level = (int)(fifo_status & SUN4I_HDMI_DDC_FIFO_STATUS_LEVEL_MASK); 66 67 /* Limit transfer length using FIFO level to avoid underflow/overflow */ 68 len = min(len, read ? level : (SUN4I_HDMI_DDC_FIFO_SIZE - level)); 69 70 if (read) 71 readsb(hdmi->base + SUN4I_HDMI_DDC_FIFO_DATA_REG, buf, len); 72 else 73 writesb(hdmi->base + SUN4I_HDMI_DDC_FIFO_DATA_REG, buf, len); --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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