csum_partial

函数名称：mputes the checksum of a memory block at buff, length len,* and adds in "sum" (32-bit)* returns a 32-bit number suitable for feeding into itself* or csum_tcpudp_magic* this function must be called with even lengths, except* for the last fragment, which

函数原型：__wsum csum_partial(const void *buff, int len, __wsum wsum)

返回类型：__wsum

参数：

类型	参数	名称
const void *	buff
int	len
__wsum	wsum

127

sum等于wsum

128

result等于do_csum(buff, len)

131

result加等于sum

132

如果sum大于result则result加等于1

134

返回:result

**调用者**
名称	描述
csum_partial_copy_from_user	复制FS同时校验
csum_partial_copy	复制FS同时校验
udp_csum_outgoing	dp_csum_outgoing - compute UDPv4/v6 checksum over fragments@sk: socket we are writing to@skb: sk_buff containing the filled-in UDP header* (checksum field must be zeroed out)
udp_csum
udp_csum_pull_header

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码

函数逻辑报告