函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\netdev_features.h Create Date:2022-07-27 06:51:50
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:Finds the next feature with the highest number of the range of start till 0.

函数原型:static inline int find_next_netdev_feature(u64 feature, unsigned long start)

返回类型:int

参数:

类型参数名称
u64feature
unsigned longstart
161  feature与等于0ULL的反右移负start按位与feature的长度乘8减1的值位
163  返回:ls64 - find last set bit in a 64-bit word*@x: the word to search* This is defined in a similar way as the libc and compiler builtin* ffsll, but returns the position of the most significant set bit减1