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Subject[PATCH] mem: clean up the code
Date
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)

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