[KJ][PATCH]is_power_of_2-sparc/mm/srmmu.c

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Replacing (n & (n-1)) in the context of power of 2 checks
with is_power_of_2

Signed-off-by: vignesh babu <vignesh.babu@xxxxxxxxx>
--- 
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index e5eaa80..741d303 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -19,6 +19,7 @@
#include <linux/fs.h>
#include <linux/seq_file.h>
#include <linux/kdebug.h>
+#include <linux/log2.h>

#include <asm/bitext.h>
#include <asm/page.h>
@@ -354,7 +355,7 @@ void srmmu_free_nocache(unsigned long vaddr, int
size)
    vaddr, srmmu_nocache_end);
BUG();
}
- if (size & (size-1)) {
+ if (!is_power_of_2(size)) {
printk("Size 0x%x is not a power of 2\n", size);
BUG();
}

-- 
Vignesh Babu BM 
_____________________________________________________________ 
"Why is it that every time I'm with you, makes me believe in magic?"

-
To unsubscribe from this list: send the line "unsubscribe sparclinux" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Kernel Development]     [DCCP]     [Linux ARM Development]     [Linux]     [Photo]     [Yosemite Help]     [Linux ARM Kernel]     [Linux SCSI]     [Linux x86_64]     [Linux Hams]

  Powered by Linux