From 77387b82d1b2bada25a7b566ab7716408fedc5e9 Mon Sep 17 00:00:00 2001
From: Tao Chen <boby.chen@huawei.com>
Date: Wed, 1 Apr 2015 15:04:22 +0000
Subject: [PATCH] xen-blkback: define pr_fmt macro to avoid the duplication of
 DRV_PFX
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Define pr_fmt macro with {xen-blkback: } prefix, then remove all use
of DRV_PFX in the pr sentences. Replace all DPRINTK with pr sentences,
and get rid of DPRINTK macro. It will simplify the code.

And if the pr sentences miss a \n, add it in the end. If the DPRINTK
sentences have redundant \n, remove it. It will format the code.

These all make the readability of the code become better.

Signed-off-by: Tao Chen <boby.chen@huawei.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
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