[RFC V6 3/3] arm64:add bitrev.h file to support rbit instruction

From
Will Deacon <hidden>
Date
2014-11-03 09:51:02
Also in
linux-mm, lkml
Reply to
Ard Biesheuvel, 2014-11-03
On Mon, Nov 03, 2014 at 08:47:32AM +0000, Ard Biesheuvel wrote:
On 3 November 2014 03:17, Wang, Yalin [off-list ref] wrote:
quoted
quoted
From: Will Deacon [mailto:will.deacon at arm.com]
quoted
+#ifndef __ASM_ARM64_BITREV_H
+#define __ASM_ARM64_BITREV_H
Really minor nit, but we don't tend to include 'ARM64' in our header guards,
so this should just be __ASM_BITREV_H.

With that change,

  Acked-by: Will Deacon [off-list ref]
I have send the patch to the patch system:
http://www.arm.linux.org.uk/developer/patches/search.php?uid=4025

8187/1 8188/1 8189/1

Just remind you that , should also cherry-pick Joe Perches's
2 patches:
[PATCH] 6fire: Convert byte_rev_table uses to bitrev8
[PATCH] carl9170: Convert byte_rev_table uses to bitrev8

To make sure there is no build error when build these 2 drivers.
If this is the case, I suggest you update patch 8187/1 to retain the
byte_rev_table symbol, even in the accelerated case, and remove it
with a followup patch once Joe's patches have landed upstream. Also, a
link to the patches would be nice, and perhaps a bit of explanation
how/when they are expected to be merged.
Indeed, or instead put together a series with the appropriate acks so
somebody can merge it all in one go. Merging this on a piecemeal basis is
going to cause breakages (as you pointed out).

Will
Thread (5 messages) 5 messages, 3 authors, last reply 2014-11-04
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