Commit 6b08cfeb authored Feb 11, 2011 by Ian Campbell Committed by Konrad Rzeszutek Wilk Feb 11, 2011

xen p2m: annotate variable which appears unused



 CC      arch/x86/xen/p2m.o
arch/x86/xen/p2m.c: In function 'm2p_remove_override':
arch/x86/xen/p2m.c:460: warning: 'address' may be used uninitialized in this function
arch/x86/xen/p2m.c: In function 'm2p_add_override':
arch/x86/xen/p2m.c:426: warning: 'address' may be used uninitialized in this function

In actual fact address is inialised in one "if (!PageHighMem(page))"
statement and used in a second and so is always initialised before
use.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

parent b052181a

arch/x86/xen/p2m.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -421,7 +421,7 @@ int m2p_add_override(unsigned long mfn, struct page *page)
		{
		unsigned long flags;
		unsigned long pfn;
		unsigned long address;
		unsigned long uninitialized_var(address);
		unsigned level;
		pte_t *ptep = NULL;

		@@ -455,7 +455,7 @@ int m2p_remove_override(struct page *page)
		unsigned long flags;
		unsigned long mfn;
		unsigned long pfn;
		unsigned long address;
		unsigned long uninitialized_var(address);
		unsigned level;
		pte_t *ptep = NULL;