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x86/xen: Remove undefined behavior in setup_features()
author
Julien Grall
<jgrall@amazon.com>
Fri, 17 Jun 2022 10:30:37 +0000
(11:30 +0100)
committer
Juergen Gross
<jgross@suse.com>
Tue, 21 Jun 2022 14:36:11 +0000
(16:36 +0200)
1 << 31 is undefined. So switch to 1U << 31.
Fixes:
5ead97c84fa7
("xen: Core Xen implementation")
Signed-off-by: Julien Grall <jgrall@amazon.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link:
https://lore.kernel.org/r/20220617103037.57828-1-julien@xen.org
Signed-off-by: Juergen Gross <jgross@suse.com>
drivers/xen/features.c
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diff --git
a/drivers/xen/features.c
b/drivers/xen/features.c
index
7b59144
..
87f1828
100644
(file)
--- a/
drivers/xen/features.c
+++ b/
drivers/xen/features.c
@@
-42,7
+42,7
@@
void xen_setup_features(void)
if (HYPERVISOR_xen_version(XENVER_get_features, &fi) < 0)
break;
for (j = 0; j < 32; j++)
- xen_features[i * 32 + j] = !!(fi.submap & 1
<<
j);
+ xen_features[i * 32 + j] = !!(fi.submap & 1
U <<
j);
}
if (xen_pv_domain()) {