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x86/xen: Remove undefined behavior in setup_features() 

1 << 31 is undefined. So switch to 1U << 31.

Fixes: 5ead97c84f ("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>
This commit is contained in:
Julien Grall 2022-06-17 11:30:37 +01:00 committed by Juergen Gross
parent f9710c357e
commit ecb6237fa3
1 changed files with 1 additions and 1 deletions
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2
drivers/xen/features.c
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@ -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 & 1U << j);
}
if (xen_pv_domain()) {