From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:54344 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751662AbdHGUiT (ORCPT ); Mon, 7 Aug 2017 16:38:19 -0400 Subject: Patch "arch/powerpc: provide zero_bytemask() for big-endian" has been added to the 3.18-stable tree To: cmetcalf@ezchip.com, gregkh@linuxfoundation.org, mpe@ellerman.id.au, sojkam1@fel.cvut.cz Cc: , From: Date: Mon, 07 Aug 2017 13:38:19 -0700 Message-ID: <1502138299100115@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled arch/powerpc: provide zero_bytemask() for big-endian to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: arch-powerpc-provide-zero_bytemask-for-big-endian.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 7a5692e6e533fd379081ab06fb58f3f5ee4d80bc Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Wed, 7 Oct 2015 09:29:11 -0400 Subject: arch/powerpc: provide zero_bytemask() for big-endian From: Chris Metcalf commit 7a5692e6e533fd379081ab06fb58f3f5ee4d80bc upstream. For some reason, only the little-endian flavor of powerpc provided the zero_bytemask() implementation. Reported-by: Michal Sojka Acked-by: Michael Ellerman Signed-off-by: Chris Metcalf Signed-off-by: Greg Kroah-Hartman --- arch/powerpc/include/asm/word-at-a-time.h | 5 +++++ 1 file changed, 5 insertions(+) --- a/arch/powerpc/include/asm/word-at-a-time.h +++ b/arch/powerpc/include/asm/word-at-a-time.h @@ -40,6 +40,11 @@ static inline bool has_zero(unsigned lon return (val + c->high_bits) & ~rhs; } +static inline unsigned long zero_bytemask(unsigned long mask) +{ + return ~1ul << __fls(mask); +} + #else #ifdef CONFIG_64BIT Patches currently in stable-queue which might be from cmetcalf@ezchip.com are queue-3.18/strscpy-zero-any-trailing-garbage-bytes-in-the-destination.patch queue-3.18/make-asm-word-at-a-time.h-available-on-all-architectures.patch queue-3.18/word-at-a-time.h-support-zero_bytemask-on-alpha-and-tile.patch queue-3.18/tile-use-global-strscpy-rather-than-private-copy.patch queue-3.18/tile-add-asm-word-at-a-time.h-and-enable-support-functions.patch queue-3.18/string-provide-strscpy.patch queue-3.18/arch-powerpc-provide-zero_bytemask-for-big-endian.patch