Re: v4.10-rc1 - build failure arm64?

From: Nishanth Menon
Date: Mon Dec 26 2016 - 13:47:46 EST


On 12/26/2016 12:30 PM, Nishanth Menon wrote:
Hi,
Not sure if this was already reported (but searching linux-arm and
linux-next MLs did not quickly show something)

* master 7ce7d89f4883 Linux 4.10-rc1
-> http://pastebin.ubuntu.com/23689404/

Backtracking:
next-20161224, next-20161223, next-20161222->
http://pastebin.ubuntu.com/23689415/ (different from master)

next-20161221 -> Builds fine (last clean build)

GCC:
https://releases.linaro.org/components/toolchain/binaries/latest-6/aarch64-linux-gnu/
$ aarch64-linux-gnu-gcc --version
aarch64-linux-gnu-gcc (Linaro GCC 6.2-2016.11) 6.2.1 20161016
Copyright (C) 2016 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.

Reproduction steps:

$ make CROSS_COMPILE=aarch64-linux-gnu- ARCH=arm64 defconfig
$ make CROSS_COMPILE=aarch64-linux-gnu- ARCH=arm64 Image


A bit of bisect later, looks like reverting the following commit allows the build to proceed. -> note: there is no fail on multi_v7_defconfig or omap2plus_defconfig even without the revert.

commit 7c0f6ba682b9c7632072ffbedf8d328c8f3c42ba
Author: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Date: Sat Dec 24 11:46:01 2016 -0800

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

This was entirely automated, using the script by Al:

PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>'
sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \
$(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h)

to do the replacement at the end of the merge window.

Requested-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>


--
Regards,
Nishanth Menon