linux-kernel - [PATCH] Fix virt_to

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Date:	Fri, 26 Jun 2009 17:13:20 -0700
From:	Kevin Cernekee <cernekee@...il.com>
To:	<linux-kernel@...r.kernel.org>
Subject: [PATCH] Fix virt_to_phys() warnings

These warnings were observed on MIPS32 using 2.6.31-rc1 and gcc-4.2.0:

mm/page_alloc.c: In function 'alloc_pages_exact':
mm/page_alloc.c:1986: warning: passing argument 1 of 'virt_to_phys' makes pointer from integer without a cast

drivers/usb/mon/mon_bin.c: In function 'mon_alloc_buff':
drivers/usb/mon/mon_bin.c:1264: warning: passing argument 1 of 'virt_to_phys' makes pointer from integer without a cast

Signed-off-by: Kevin Cernekee <cernekee@...il.com>
---
diff --git a/drivers/usb/mon/mon_bin.c b/drivers/usb/mon/mon_bin.c
index f8d9045..0f7a30b 100644
--- a/drivers/usb/mon/mon_bin.c
+++ b/drivers/usb/mon/mon_bin.c
@@ -1261,7 +1261,7 @@ static int mon_alloc_buff(struct mon_pgmap *map, int npages)
 			return -ENOMEM;
 		}
 		map[n].ptr = (unsigned char *) vaddr;
-		map[n].pg = virt_to_page(vaddr);
+		map[n].pg = virt_to_page((void *) vaddr);
 	}
 	return 0;
 }
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 5d714f8..f6180db 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1983,7 +1983,7 @@ void *alloc_pages_exact(size_t size, gfp_t gfp_mask)
 		unsigned long alloc_end = addr + (PAGE_SIZE << order);
 		unsigned long used = addr + PAGE_ALIGN(size);
 
-		split_page(virt_to_page(addr), order);
+		split_page(virt_to_page((void *)addr), order);
 		while (used < alloc_end) {
 			free_page(used);
 			used += PAGE_SIZE;
--
--
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