Commit ecb6237f authored by Julien Grall's avatar Julien Grall Committed by Juergen Gross
Browse files

x86/xen: Remove undefined behavior in setup_features() 



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

Fixes: 5ead97c8 ("xen: Core Xen implementation")
Signed-off-by: default avatarJulien Grall <jgrall@amazon.com>
Reviewed-by: default avatarJuergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20220617103037.57828-1-julien@xen.org


Signed-off-by: default avatarJuergen Gross <jgross@suse.com>
parent f9710c35

drivers/xen/features.c

+1 −1
Original line number Diff line number Diff line
@@ -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()) {