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From: Dan Carpenter <dan.carpenter@oracle.com>
To: dchinner@redhat.com
Cc: xfs@oss.sgi.com
Subject: re: xfs: add buffer types to directory and attribute buffers
Date: Mon, 6 May 2013 12:11:16 +0300	[thread overview]
Message-ID: <20130506091116.GA2129@elgon.mountain> (raw)

Hello Dave Chinner,

The patch d75afeb3d302: "xfs: add buffer types to directory and 
attribute buffers" from Apr 3, 2013, leads to the following Smatch warning:
"fs/xfs/xfs_log_recover.c:2042 xlog_recovery_validate_buf_type()
	 warn: always true condition '(magicda != 1480675917) =>  (0-u16max != 1480675917)'"

fs/xfs/xfs_log_recover.c
  2039          case XFS_BLFT_ATTR_RMT_BUF:
  2040                  if (!xfs_sb_version_hascrc(&mp->m_sb))
  2041                          break;
  2042                  if (magicda != XFS_ATTR3_RMT_MAGIC) {
                            ^^^^^^^
This is an unsigned short so it can never be equal to 0x5841524d.  Was
"magic32" intended here?

  2043                          xfs_warn(mp, "Bad attr remote magic!");
  2044                          ASSERT(0);
  2045                          break;
  2046                  }
  2047                  bp->b_ops = &xfs_attr3_rmt_buf_ops;
  2048                  break;

regards,
dan carpenter

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             reply	other threads:[~2013-05-06  9:11 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-06  9:11 Dan Carpenter [this message]
2013-05-06  9:27 ` xfs: add buffer types to directory and attribute buffers Jeff Liu

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