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

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Date:   Tue, 2 May 2017 13:17:22 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
        "H. Peter Anvin" <hpa@...or.com>,
        Peter Zijlstra <peterz@...radead.org>
Cc:     Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Dan Williams <dan.j.williams@...el.com>,
        Ming Lei <tom.leiming@...il.com>, Jens Axboe <axboe@...com>
Subject: linux-next: build failure after merge of the tip tree

Hi all,

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

drivers/nvdimm/pmem.c: In function 'pmem_freeze_queue':
drivers/nvdimm/pmem.c:237:2: error: implicit declaration of function 'blk_mq_freeze_queue_start' [-Werror=implicit-function-declaration]
  blk_mq_freeze_queue_start(q);
  ^

Caused by commit

  71389703839e ("mm, zone_device: Replace {get, put}_zone_device_page() with a single reference to fix pmem crash")

interacting with commit

  1671d522cdd9 ("block: rename blk_mq_freeze_queue_start()")

from Linus' tree.

I have applied the merge fix patch below.

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Tue, 2 May 2017 13:09:41 +1000
Subject: [PATCH] mm, zone_device: merge fix up for blk_mq_freeze_queue_start()
 rename

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

diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index fb7bbc79ac26..fbc640bf06b0 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -234,7 +234,7 @@ static void pmem_release_queue(void *q)
 
 static void pmem_freeze_queue(void *q)
 {
-	blk_mq_freeze_queue_start(q);
+	blk_freeze_queue_start(q);
 }
 
 static void pmem_release_disk(void *disk)
-- 
2.11.0

-- 
Cheers,
Stephen Rothwell