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From a8f26948d36c27243fd564e9af59ebf416838311 Mon Sep 17 00:00:00 2001
From: Natanael Copa <ncopa@alpinelinux.org>
Date: Tue, 29 Apr 2014 14:28:52 +0200
Subject: [PATCH 3/6] xen: replace ffsl with ctzl
ffsl is a GNU extension and not available in musl libc.
See also commit fbeadf50 (bitops: unify bitops_ffsl with the one in
host-utils.h, call it bitops_ctzl) on why ctzl should be used instead
of ffsl.
Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
---
xen-all.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/xen-all.c b/xen-all.c
index ba34739..3a0e9e5 100644
--- a/xen-all.c
+++ b/xen-all.c
@@ -511,7 +511,7 @@ static void xen_sync_dirty_bitmap(XenIOState *state,
for (i = 0; i < ARRAY_SIZE(bitmap); i++) {
unsigned long map = bitmap[i];
while (map != 0) {
- j = ffsl(map) - 1;
+ j = ctzl(map);
map &= ~(1ul << j);
memory_region_set_dirty(framebuffer,
(i * width + j) * TARGET_PAGE_SIZE,
--
1.9.2
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