linux-kernel - [PATCH] FRV: Hide uncached_access() when pgprot

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Date:	Wed, 24 Mar 2010 17:05:47 +0000
From:	David Howells <dhowells@...hat.com>
To:	torvalds@...l.org, akpm@...ux-foundation.org
Cc:	linux-kernel@...r.kernel.org, David Howells <dhowells@...hat.com>
Subject: [PATCH] FRV: Hide uncached_access() when pgprot_noncached is not
	#defined

Hide uncached_access() when pgprot_noncached is not #defined.  This prevents
the following warning:

	  CC      drivers/char/mem.o
	drivers/char/mem.c:229: warning: 'uncached_access' defined but not used

Signed-off-by: David Howells <dhowells@...hat.com>
---

 drivers/char/mem.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)


diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index 1f3215a..0e16cd5 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -225,6 +225,7 @@ int __weak phys_mem_access_prot_allowed(struct file *file,
  * outside of main memory.
  *
  */
+#ifdef pgprot_noncached
 static int uncached_access(struct file *file, unsigned long addr)
 {
 #if defined(CONFIG_IA64)
@@ -251,6 +252,7 @@ static int uncached_access(struct file *file, unsigned long addr)
 	return addr >= __pa(high_memory);
 #endif
 }
+#endif
 
 static pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
 				     unsigned long size, pgprot_t vma_prot)

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