2022년 10월 19일 (수) 오후 7:31, David Laight <David.Laight@xxxxxxxxxx>님이 작성: > > From: Kang Minchul > > Sent: 19 October 2022 10:40 > > > > This commit removes warning generated by cocci as follows: > > > > do_div() does a 64-by-32 division, please consider using div64_u64 instead. > > > > Using div64_u64 instead of do_div can avoid potential truncation. > > Cocci is lying to you. > > do_div() exists because a 64 by 32 bit divide is significantly > faster than a 64 by 64 divide. > This is particularly true on 32bit cpu, but is also true on > Intel x86_64 bit cpu. I guess I have missed that point, Thanks for your feedback! Kang Minchul
