From ecb6237fa397b7b810d798ad19322eca466dbab1 Mon Sep 17 00:00:00 2001 From: Julien Grall Date: Fri, 17 Jun 2022 11:30:37 +0100 Subject: x86/xen: Remove undefined behavior in setup_features() 1 << 31 is undefined. So switch to 1U << 31. Fixes: 5ead97c84fa7 ("xen: Core Xen implementation") Signed-off-by: Julien Grall Reviewed-by: Juergen Gross Link: https://lore.kernel.org/r/20220617103037.57828-1-julien@xen.org Signed-off-by: Juergen Gross --- drivers/xen/features.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/xen/features.c') diff --git a/drivers/xen/features.c b/drivers/xen/features.c index 7b591443833c..87f1828d40d5 100644 --- 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<