Messages in this thread | | | Date | Fri, 8 Apr 2022 21:17:55 +0800 | From | kernel test robot <> | Subject | [l1k:smsc95xx_5.17 209/887] drivers/dma/bcm2835-dma.c:1104:5: warning: no previous prototype for 'bcm2711_dma40_memcpy_init' |
| |
tree: https://github.com/l1k/linux smsc95xx_5.17 head: 05d68ced287b30f62f18f95b5476135ef669804a commit: 92eab2543e8b86cf7660e0cc70d5aee4313cbe58 [209/887] bcm2835-dma: Add proper 40-bit DMA support config: arm-multi_v7_defconfig (https://download.01.org/0day-ci/archive/20220408/202204082125.AHZubaGl-lkp@intel.com/config) compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/l1k/linux/commit/92eab2543e8b86cf7660e0cc70d5aee4313cbe58 git remote add l1k https://github.com/l1k/linux git fetch --no-tags l1k smsc95xx_5.17 git checkout 92eab2543e8b86cf7660e0cc70d5aee4313cbe58 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm SHELL=/bin/bash drivers/dma/
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> drivers/dma/bcm2835-dma.c:1104:5: warning: no previous prototype for 'bcm2711_dma40_memcpy_init' [-Wmissing-prototypes] 1104 | int bcm2711_dma40_memcpy_init(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~ >> drivers/dma/bcm2835-dma.c:1119:6: warning: no previous prototype for 'bcm2711_dma40_memcpy' [-Wmissing-prototypes] 1119 | void bcm2711_dma40_memcpy(dma_addr_t dst, dma_addr_t src, size_t size) | ^~~~~~~~~~~~~~~~~~~~
vim +/bcm2711_dma40_memcpy_init +1104 drivers/dma/bcm2835-dma.c
1103 > 1104 int bcm2711_dma40_memcpy_init(void) 1105 { 1106 if (!memcpy_parent) 1107 return -EPROBE_DEFER; 1108 1109 if (!memcpy_chan) 1110 return -EINVAL; 1111 1112 if (!memcpy_scb) 1113 return -ENOMEM; 1114 1115 return 0; 1116 } 1117 EXPORT_SYMBOL(bcm2711_dma40_memcpy_init); 1118 > 1119 void bcm2711_dma40_memcpy(dma_addr_t dst, dma_addr_t src, size_t size) 1120 { 1121 struct bcm2711_dma40_scb *scb = memcpy_scb; 1122 unsigned long flags; 1123 1124 if (!scb) { 1125 pr_err("bcm2711_dma40_memcpy not initialised!\n"); 1126 return; 1127 } 1128 1129 spin_lock_irqsave(&memcpy_lock, flags); 1130 1131 scb->ti = 0; 1132 scb->src = lower_32_bits(src); 1133 scb->srci = upper_32_bits(src) | BCM2711_DMA40_MEMCPY_XFER_INFO; 1134 scb->dst = lower_32_bits(dst); 1135 scb->dsti = upper_32_bits(dst) | BCM2711_DMA40_MEMCPY_XFER_INFO; 1136 scb->len = size; 1137 scb->next_cb = 0; 1138 1139 writel((u32)(memcpy_scb_dma >> 5), memcpy_chan + BCM2711_DMA40_CB); 1140 writel(BCM2711_DMA40_MEMCPY_FLAGS + BCM2711_DMA40_ACTIVE, 1141 memcpy_chan + BCM2711_DMA40_CS); 1142 1143 /* Poll for completion */ 1144 while (!(readl(memcpy_chan + BCM2711_DMA40_CS) & BCM2711_DMA40_END)) 1145 cpu_relax(); 1146 1147 writel(BCM2711_DMA40_END, memcpy_chan + BCM2711_DMA40_CS); 1148 1149 spin_unlock_irqrestore(&memcpy_lock, flags); 1150 } 1151 EXPORT_SYMBOL(bcm2711_dma40_memcpy); 1152
-- 0-DAY CI Kernel Test Service https://01.org/lkp
| |