From: Tim Gardner <tim.gardner@canonical.com>
Date: Thu, 14 Nov 2013 21:29:52 +0000 (-0700)
Subject: xen-blkfront: Silence pfn maybe-uninitialized warning
X-Git-Tag: v3.13-rc3~8^2~2^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=427bfe07e6744c058ce6fc4aa187cda96b635539;p=pandora-kernel.git

xen-blkfront: Silence pfn maybe-uninitialized warning

pfn cannot actually be used unless (!info->feature_persistent), nor is
pfn accessed in get_grant() unless (!info->feature_persistent), but silence
this warning anyway. gcc-4.8

drivers/block/xen-blkfront.c: In function 'do_blkif_request':
drivers/block/xen-blkfront.c:508:20: warning: 'pfn' may be used uninitialized in this function [-Wmaybe-uninitialized]
     gnt_list_entry = get_grant(&gref_head, pfn, info);
                    ^
drivers/block/xen-blkfront.c:492:19: note: 'pfn' was declared here
     unsigned long pfn;

Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
---

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