tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 39676dfe52331dba909c617f213fdb21015c8d10 commit: fa88abfd0d03fea8b800ff1df4f161c804d24c8a [9984/10295] dmaengine: xilinx: xdma: Prepare the introduction of interleaved DMA transfers config: arc-randconfig-002-20231222 (https://download.01.org/0day-ci/archive/20231223/202312231042.LGJY7ydP-lkp@xxxxxxxxx/config) compiler: arc-elf-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231223/202312231042.LGJY7ydP-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202312231042.LGJY7ydP-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/dma/xilinx/xdma.c:555: warning: Function parameter or member 'sw_desc' not described in 'xdma_fill_descs' >> drivers/dma/xilinx/xdma.c:555: warning: Function parameter or member 'src_addr' not described in 'xdma_fill_descs' >> drivers/dma/xilinx/xdma.c:555: warning: Function parameter or member 'dst_addr' not described in 'xdma_fill_descs' >> drivers/dma/xilinx/xdma.c:555: warning: Function parameter or member 'size' not described in 'xdma_fill_descs' >> drivers/dma/xilinx/xdma.c:555: warning: Function parameter or member 'filled_descs_num' not described in 'xdma_fill_descs' vim +555 drivers/dma/xilinx/xdma.c 544 545 /** 546 * xdma_fill_descs - Fill hardware descriptors with contiguous memory block addresses 547 * @sw_desc - tx descriptor state container 548 * @src_addr - Value for a ->src_addr field of a first descriptor 549 * @dst_addr - Value for a ->dst_addr field of a first descriptor 550 * @size - Total size of a contiguous memory block 551 * @filled_descs_num - Number of filled hardware descriptors for corresponding sw_desc 552 */ 553 static inline u32 xdma_fill_descs(struct xdma_desc *sw_desc, u64 src_addr, 554 u64 dst_addr, u32 size, u32 filled_descs_num) > 555 { 556 u32 left = size, len, desc_num = filled_descs_num; 557 struct xdma_desc_block *dblk; 558 struct xdma_hw_desc *desc; 559 560 dblk = sw_desc->desc_blocks + (desc_num / XDMA_DESC_ADJACENT); 561 desc = dblk->virt_addr; 562 desc += desc_num & XDMA_DESC_ADJACENT_MASK; 563 do { 564 len = min_t(u32, left, XDMA_DESC_BLEN_MAX); 565 /* set hardware descriptor */ 566 desc->bytes = cpu_to_le32(len); 567 desc->src_addr = cpu_to_le64(src_addr); 568 desc->dst_addr = cpu_to_le64(dst_addr); 569 if (!(++desc_num & XDMA_DESC_ADJACENT_MASK)) 570 desc = (++dblk)->virt_addr; 571 else 572 desc++; 573 574 src_addr += len; 575 dst_addr += len; 576 left -= len; 577 } while (left); 578 579 return desc_num - filled_descs_num; 580 } 581 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
