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DateSun, 30 Oct 2005 19:22:05 +0900
FromEric Piel <>
SubjectRe: [PATCH] include/linux/etherdevice.h, kernel 2.6.14
J.A. Magallon wrote:
> 
> Just for curiosity, could you both benchmark this also:
> 
> int is_zero_ether_addr0(const unsigned char *addr)
> {
>     return !(((unsigned long *)addr)[0] | ((unsigned short*)addr)[2]);
> }
> 

This is probably safer (wrt 64 bits systems):

int is_zero_ether_addr0(const unsigned char *addr)
{
     return !(((u32*)addr)[0] | ((u16*)addr)[2]);
}
Eric
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