linux-kernel - linux-next: build failure after merge of the dma-mapping-fixes tree

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Message-ID: <20190808082948.781f0033@canb.auug.org.au>
Date:   Thu, 8 Aug 2019 08:29:48 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Christoph Hellwig <hch@....de>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: linux-next: build failure after merge of the dma-mapping-fixes tree

Hi all,

After merging the dma-mapping-fixes tree, today's linux-next build
(x86_64 allmodconfig) failed like this:

/home/sfr/next/next/mm/migrate.c: In function 'migrate_vma_collect':
/home/sfr/next/next/mm/migrate.c:2350:61: error: 'mm_walk' undeclared (first use in this function)
  mmu_notifier_range_init(&range, MMU_NOTIFY_CLEAR, 0, NULL, mm_walk.mm,
                                                             ^~~~~~~

Caused by commit

  f4c1f66bf710 ("pagewalk: seperate function pointers from iterator data")

I have applied the following patch for today:

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Thu, 8 Aug 2019 08:25:40 +1000
Subject: [PATCH] pagewalk: fix up missed conversion in migrate_vma_collect()

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 mm/migrate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/migrate.c b/mm/migrate.c
index 75de4378dfcd..585113d2e37d 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -2347,7 +2347,7 @@ static void migrate_vma_collect(struct migrate_vma *migrate)
 {
 	struct mmu_notifier_range range;
 
-	mmu_notifier_range_init(&range, MMU_NOTIFY_CLEAR, 0, NULL, mm_walk.mm,
+	mmu_notifier_range_init(&range, MMU_NOTIFY_CLEAR, 0, NULL, migrate->vma->vm_mm,
 				migrate->start,
 				migrate->end);
 	mmu_notifier_invalidate_range_start(&range);
-- 
2.20.1

-- 
Cheers,
Stephen Rothwell

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