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/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c index 1346b7f..d22861c 100644 --- a/arch/ia64/mm/hugetlbpage.c +++ b/arch/ia64/mm/hugetlbpage.c @@ -15,6 +15,7 @@ #include <linux/pagemap.h> #include <linux/slab.h> #include <linux/sysctl.h> +#include <linux/log2.h> #include <asm/mman.h> #include <asm/pgalloc.h> #include <asm/tlb.h> @@ -182,7 +183,7 @@ static int __init hugetlb_setup_sz(char *str) tr_pages = 0x15557000UL; size = memparse(str, &str); - if (*str || (size & (size-1)) || !(tr_pages & size) || + if (*str || !is_power_of_2(size) || !(tr_pages & size) || size <= PAGE_SIZE || size >= (1UL << PAGE_SHIFT << MAX_ORDER)) { printk(KERN_WARNING "Invalid huge page size specified\n"); -- 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 linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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