[PATCH] KVM: selftests: Fix printf() format goof in SEV smoke test

[Sean Christopherson]

Print out the index of mismatching XSAVE bytes using unsigned decimal
format.  Some versions of clang complain about trying to print an integer
as an unsigned char.

  x86/sev_smoke_test.c:55:51: error: format specifies type 'unsigned char'
                                     but the argument has type 'int' [-Werror,-Wformat]

Fixes: 8c53183dbaa2 ("selftests: kvm: add test for transferring FPU state into VMSA")
Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
---
 tools/testing/selftests/kvm/x86/sev_smoke_test.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/kvm/x86/sev_smoke_test.c b/tools/testing/selftests/kvm/x86/sev_smoke_test.c
index a1a688e75266..d97816dc476a 100644
--- a/tools/testing/selftests/kvm/x86/sev_smoke_test.c
+++ b/tools/testing/selftests/kvm/x86/sev_smoke_test.c
@@ -52,7 +52,8 @@ static void compare_xsave(u8 *from_host, u8 *from_guest)
 	bool bad = false;
 	for (i = 0; i < 4095; i++) {
 		if (from_host[i] != from_guest[i]) {
-			printf("mismatch at %02hhx | %02hhx %02hhx\n", i, from_host[i], from_guest[i]);
+			printf("mismatch at %u | %02hhx %02hhx\n",
+			       i, from_host[i], from_guest[i]);
 			bad = true;
 		}
 	}

base-commit: fed48e2967f402f561d80075a20c5c9e16866e53
-- 
2.48.1.711.g2feabab25a-goog