linux-kernel - linux-next: build failure after merge of the akpm-current tree

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Date:   Tue, 1 Aug 2017 16:39:04 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Zi Yan <zi.yan@...rutgers.edu>
Subject: linux-next: build failure after merge of the akpm-current tree

Hi Andrew,

After merging the akpm tree, today's linux-next build (sparc defconfig)
failed like this:

In file included from mm/vmscan.c:55:0:
include/linux/swapops.h: In function 'swp_entry_to_pmd':
include/linux/swapops.h:226:9: error: implicit declaration of function '__pmd' [-Werror=implicit-function-declaration]
  return __pmd(0);
         ^
include/linux/swapops.h:226:9: error: incompatible types when returning type 'int' but 'pmd_t {aka struct <anonymous>}' was expected

Caused by commit

  9bb18490758c ("mm-thp-enable-thp-migration-in-generic-path-fix")

It looks like sparc 32 bit has no __pmd() ...

I have reverted that commit for today.

-- 
Cheers,
Stephen Rothwell