函数逻辑报告

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v5.5.9

Brick Technologies Co., Ltd

Source Code:lib\scatterlist.c Create Date:2022-07-27 07:17:45
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:__sg_page_iter_dma_next

函数原型:bool __sg_page_iter_dma_next(struct sg_dma_page_iter *dma_iter)

返回类型:bool

参数:

类型参数名称
struct sg_dma_page_iter *dma_iter
643  piter等于base
645  如果非maining sg entries 或非sg holding the page 则返回:false
648  page offset within the sg 加等于r pages to advance at the* next step
649  r pages to advance at the* next step 等于1
651 page offset within the sg 大于等于sg_dma_page_count(sg holding the page )循环
652  page offset within the sg 减等于sg_dma_page_count(sg holding the page )
653  sg holding the page 等于 返回下一个散列表的条目
654  如果非maining sg entries 先自减或非sg holding the page 则返回:false
658  返回:true