Messages in this thread | | | Date | Thu, 29 May 2014 07:44:31 +0100 | From | "Jan Beulich" <> | Subject | Re: [RFC PATCH] crypto: crc32c-pclmul - Use pmovzxdq to shrink K_table |
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>>> "George Spelvin" <linux@horizon.com> 05/28/14 11:47 PM >>> >Jan Beulich <jbeulich@suse.com> wrote: >> "George Spelvin" <linux@horizon.com> 05/28/14 4:40 PM >>> Jan: Is support for SLE10's pre-2.18 binutils still required? >>> Your PEXTRD fix was only a year ago, so I expect, but I wanted to ask. > >> I'd much appreciate if I would be able to build the kernel that way for >> another while. > >Does it matter that the code I'm working on is 64-bit only?
No.
>It aready >uses crc32q instruction (added with SSE4.2) with no assembler workarounds, >so I figure pmovzxdq (part of SSE 4.1) doesn't make it any worse.
If that's the case, then adding another (earlier) one shouldn't be an issue.
Jan
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