Subject: linux-next: build warning after merge of the iomap tree

From: Stephen Rothwell <[email-masked]>
Date: Tue, 7 Jan 2020 10:23:08 +1100

Hi all,

After merging the iomap tree, today's linux-next build (arm
multi_v7_defconfig) produced this warning:

fs/ext4/inode.c: In function 'ext4_page_mkwrite':
fs/ext4/inode.c:5910:24: warning: unused variable 'mapping' [-Wunused-variable]
 5910 |  struct address_space *mapping = inode->i_mapping;
      |                        ^~~~~~~

Introduced by commit

  4a58d8158f6d ("fs: Fix page_mkwrite off-by-one errors")

-- 
Cheers,
Stephen Rothwell