函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:lib\kfifo.c Create Date:2022-07-27 07:21:53
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:__kfifo_peek_n internal helper function for determinate the length of* the next record in the fifo

函数原型:static unsigned int __kfifo_peek_n(struct __kfifo *fifo, size_t recsize)

返回类型:unsigned int

参数:

类型参数名称
struct __kfifo *fifo
size_trecsize
401  mask等于mask
402  data等于data
404  l等于__KFIFO_PEEK(data, out, mask)
406  如果recsize先自减则l或等于__KFIFO_PEEK(data, out + 1, mask)左移8位
409  返回:l
调用者
名称描述
__kfifo_len_r
kfifo_out_copy_r
__kfifo_skip_r
__kfifo_to_user_r
__kfifo_dma_out_finish_r