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

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Date:   Wed, 16 Jan 2019 13:35:52 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Jens Axboe <axboe@...nel.dk>,
        Anna Schumaker <Anna.Schumaker@...app.com>,
        Trond Myklebust <trondmy@...il.com>,
        NFS Mailing List <linux-nfs@...r.kernel.org>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Ming Lei <ming.lei@...hat.com>
Subject: linux-next: build failure after merge of the block tree

Hi all,

After merging the block tree, today's linux-next build (arm
multi_v7_defconfig) failed like this:

net/sunrpc/xprtsock.c: In function 'xs_flush_bvec':
net/sunrpc/xprtsock.c:390:2: error: implicit declaration of function 'for_each_bvec'; did you mean 'for_each_net'? [-Werror=implicit-function-declaration]
  for_each_bvec(bv, bvec, bi, bi)
  ^~~~~~~~~~~~~
  for_each_net
net/sunrpc/xprtsock.c:390:33: error: expected ';' before 'flush_dcache_page'
  for_each_bvec(bv, bvec, bi, bi)
                                 ^
                                 ;
   flush_dcache_page(bv.bv_page);
   ~~~~~~~~~~~~~~~~~              

Caused by commit

  f3effe4c1240 ("block: rename bvec helpers")

interacting with commit

  6a829eb8619f ("SUNRPC: Fix TCP receive code on archs with flush_dcache_page()")

from the nfs-anna tree.

[I love API changes :-(]

I have applied the following merge fix patch:

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Wed, 16 Jan 2019 13:32:59 +1100
Subject: [PATCH] SUNRPC: merge fix for "block: rename bvec helpers"

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

diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 7754aa3e434f..47f29cc23f27 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -387,7 +387,7 @@ xs_flush_bvec(const struct bio_vec *bvec, size_t count, size_t seek)
 	struct bio_vec bv;
 
 	bvec_iter_advance(bvec, &bi, seek & PAGE_MASK);
-	for_each_bvec(bv, bvec, bi, bi)
+	for_each_segment(bv, bvec, bi, bi)
 		flush_dcache_page(bv.bv_page);
 }
 #else
-- 
2.20.1

-- 
Cheers,
Stephen Rothwell

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