linux-kernel - [PATCH] xfs: Silence bounds checking compiler warning

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Date:	Thu, 23 Jun 2011 17:08:22 +0200
From:	Maarten Lankhorst <m.b.lankhorst@...il.com>
To:	Alex Elder <aelder@....com>
CC:	xfs-masters@....sgi.com, xfs@....sgi.com,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: [PATCH] xfs: Silence bounds checking compiler warning

gcc with -Warray-bounds generates a false positive on this
since xfs defines the struct with u8 name[1]; to be able to
add a tag at the end.

Signed-off-by: Maarten Lankhorst <m.b.lankhorst@...il.com>
---
 fs/xfs/xfs_dir2_block.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/fs/xfs/xfs_dir2_block.c b/fs/xfs/xfs_dir2_block.c
index 580d99c..09b4aed 100644
--- a/fs/xfs/xfs_dir2_block.c
+++ b/fs/xfs/xfs_dir2_block.c
@@ -1148,7 +1148,7 @@ xfs_dir2_sf_to_block(
 		((char *)block + XFS_DIR2_DATA_DOTDOT_OFFSET);
 	dep->inumber = cpu_to_be64(xfs_dir2_sf_get_inumber(sfp, &sfp->hdr.parent));
 	dep->namelen = 2;
-	dep->name[0] = dep->name[1] = '.';
+	dep->name[0] = ((__u8 *)dep->name)[1] = '.';
 	tagp = xfs_dir2_data_entry_tag_p(dep);
 	*tagp = cpu_to_be16((char *)dep - (char *)block);
 	xfs_dir2_data_log_entry(tp, bp, dep);
-- 
1.7.5.4



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