Messages in this thread | | | Date | Sat, 28 Dec 2013 23:02:08 +0800 | From | Ding Tianhong <> | Subject | Re: [PATCH net-next v2 20/20] net: caif: slight optimization of addr compare |
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于 2013/12/28 14:59, Joe Perches 写道: > On Sat, 2013-12-28 at 14:18 +0800, Ding Tianhong wrote: >> Use possibly more efficient ether_addr_equal >> to instead of memcmp. > > This may be a distinction without difference, but > is a CAIF seghead also an ethernet address? >
NO,this is a coincidence, the CAIF seghead is 6 bytes too, So from a logical point of view, maybe a new function with suitable name will be more reasonable here, but the name of ether_addr_equal is not correctly here.:)
thanks
Regards Ding
>> diff --git a/net/caif/cfrfml.c b/net/caif/cfrfml.c > [] >> @@ -79,7 +79,7 @@ static struct cfpkt *rfm_append(struct cfrfml *rfml, char *seghead, > [] >> /* Verify correct header */ >> - if (memcmp(seghead, rfml->seghead, 6) != 0) >> + if (!ether_addr_equal(seghead, rfml->seghead)) > > > -- > To unsubscribe from this list: send the line "unsubscribe netdev" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >
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