From: Changli Gao <xiaosuo@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, Changli Gao <xiaosuo@gmail.com>
Subject: [PATCH] mem: clean up the code
Date: Mon, 21 Feb 2011 11:56:08 +0800 [thread overview]
Message-ID: <1298260568-5485-1-git-send-email-xiaosuo@gmail.com> (raw)
Reduce the lines of code and simply the logic.
Signed-off-by: Changli Gao <xiaosuo@gmail.com>
---
drivers/char/mem.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index 1256454..436a990 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -47,10 +47,7 @@ static inline unsigned long size_inside_page(unsigned long start,
#ifndef ARCH_HAS_VALID_PHYS_ADDR_RANGE
static inline int valid_phys_addr_range(unsigned long addr, size_t count)
{
- if (addr + count > __pa(high_memory))
- return 0;
-
- return 1;
+ return addr + count <= __pa(high_memory);
}
static inline int valid_mmap_phys_addr_range(unsigned long pfn, size_t size)
reply other threads:[~2011-02-21 3:56 UTC|newest]
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