Hi Long, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v4.20-rc6 next-20181207] [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/Long-Cheng/add-uart-DMA-function/20181210-125624 config: s390-allmodconfig (attached as .config) compiler: s390x-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=7.2.0 make.cross ARCH=s390 All error/warnings (new ones prefixed by >>): >> drivers/dma/mediatek/8250_mtk_dma.c:29:30: error: 'CONFIG_SERIAL_8250_NR_UARTS' undeclared here (not in a function); did you mean 'CONFIG_SERIAL_RP2_NR_UARTS'? #define MTK_APDMA_CHANNELS (CONFIG_SERIAL_8250_NR_UARTS * 2) ^ >> drivers/dma/mediatek/8250_mtk_dma.c:75:25: note: in expansion of macro 'MTK_APDMA_CHANNELS' void __iomem *mem_base[MTK_APDMA_CHANNELS]; ^~~~~~~~~~~~~~~~~~ vim +29 drivers/dma/mediatek/8250_mtk_dma.c 27 28 #define MTK_APDMA_DEFAULT_REQUESTS 127 > 29 #define MTK_APDMA_CHANNELS (CONFIG_SERIAL_8250_NR_UARTS * 2) 30 31 #define VFF_EN_B BIT(0) 32 #define VFF_STOP_B BIT(0) 33 #define VFF_FLUSH_B BIT(0) 34 #define VFF_4G_SUPPORT_B BIT(0) 35 #define VFF_RX_INT_EN0_B BIT(0) /*rx valid size >= vff thre*/ 36 #define VFF_RX_INT_EN1_B BIT(1) 37 #define VFF_TX_INT_EN_B BIT(0) /*tx left size >= vff thre*/ 38 #define VFF_WARM_RST_B BIT(0) 39 #define VFF_RX_INT_FLAG_CLR_B (BIT(0) | BIT(1)) 40 #define VFF_TX_INT_FLAG_CLR_B 0 41 #define VFF_STOP_CLR_B 0 42 #define VFF_FLUSH_CLR_B 0 43 #define VFF_INT_EN_CLR_B 0 44 #define VFF_4G_SUPPORT_CLR_B 0 45 46 /* interrupt trigger level for tx */ 47 #define VFF_TX_THRE(n) ((n) * 7 / 8) 48 /* interrupt trigger level for rx */ 49 #define VFF_RX_THRE(n) ((n) * 3 / 4) 50 51 #define MTK_DMA_RING_SIZE 0xffffU 52 /* invert this bit when wrap ring head again*/ 53 #define MTK_DMA_RING_WRAP 0x10000U 54 55 #define VFF_INT_FLAG 0x00 56 #define VFF_INT_EN 0x04 57 #define VFF_EN 0x08 58 #define VFF_RST 0x0c 59 #define VFF_STOP 0x10 60 #define VFF_FLUSH 0x14 61 #define VFF_ADDR 0x1c 62 #define VFF_LEN 0x24 63 #define VFF_THRE 0x28 64 #define VFF_WPT 0x2c 65 #define VFF_RPT 0x30 66 /*TX: the buffer size HW can read. RX: the buffer size SW can read.*/ 67 #define VFF_VALID_SIZE 0x3c 68 /*TX: the buffer size SW can write. RX: the buffer size HW can write.*/ 69 #define VFF_LEFT_SIZE 0x40 70 #define VFF_DEBUG_STATUS 0x50 71 #define VFF_4G_SUPPORT 0x54 72 73 struct mtk_dmadev { 74 struct dma_device ddev; > 75 void __iomem *mem_base[MTK_APDMA_CHANNELS]; 76 spinlock_t lock; /* dma dev lock */ 77 struct tasklet_struct task; 78 struct list_head pending; 79 struct clk *clk; 80 unsigned int dma_requests; 81 bool support_33bits; 82 unsigned int dma_irq[MTK_APDMA_CHANNELS]; 83 struct mtk_chan *ch[MTK_APDMA_CHANNELS]; 84 }; 85 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
Attachment:
.config.gz
Description: application/gzip
