From: Julien Grall <jgrall@amazon.com>
Date: Wed, 20 Jul 2022 18:22:34 +0000 (+0100)
Subject: xen: page_alloc: Don't open-code IS_ALIGNED()
X-Git-Tag: archive/raspbian/4.17.0-1+rpi1^2~33^2~411
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=7a2b7edad5d5508e2d6a2e5d0ad0399ae16e9c8e;p=xen.git

xen: page_alloc: Don't open-code IS_ALIGNED()

init_heap_pages() is using an open-code version of IS_ALIGNED(). Replace
it to improve the readability of the code.

No functional change intended.

Signed-off-by: Julien Grall <jgrall@amazon.com>
Reviewed-by: Wei Chen <Wei.Chen@arm.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
---

diff --git a/xen/common/page_alloc.c b/xen/common/page_alloc.c
index 6ca986584d..013f3d142e 100644
--- a/xen/common/page_alloc.c
+++ b/xen/common/page_alloc.c
@@ -1827,7 +1827,7 @@ static void init_heap_pages(
             unsigned long s = mfn_x(page_to_mfn(pg + i));
             unsigned long e = mfn_x(mfn_add(page_to_mfn(pg + nr_pages - 1), 1));
             bool use_tail = (nid == phys_to_nid(pfn_to_paddr(e - 1))) &&
-                            !(s & ((1UL << MAX_ORDER) - 1)) &&
+                            IS_ALIGNED(s, 1UL << MAX_ORDER) &&
                             (find_first_set_bit(e) <= find_first_set_bit(s));
             unsigned long n;