[kvm-unit-tests PATCH] s390x/intercept: Fix problem with bad compiler warning

[Thomas Huth <thuth@redhat.com>]

The intercept test currently can not be compiled with GCC 4.8 anymore.
It generates the following warning (which is fatal due to -Werror):

s390x/intercept.c: In function ‘test_stidp’:
s390x/intercept.c:111:9: error: missing initializer for field ‘version’ of ‘struct cpuid’ [-Werror=missing-field-initializers]
  struct cpuid id = {};
         ^
Fix it by using a "0" as intializer here.

Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 NB: We could also remove the -Wextra from the CFLAGS instead. IMHO
 using -Wextra together with -Werror is just like playing Russian roulette.
 Since -Wextra is some kind of "compiler warning playground" for the GCC
 folks, you never know which compiler version will trigger an unexpected
 (and often also unfounded) warning here, so using this together with -Werror
 is just a nuisance.

 s390x/intercept.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/s390x/intercept.c b/s390x/intercept.c
index 9766289..9fe86cf 100644
--- a/s390x/intercept.c
+++ b/s390x/intercept.c
@@ -108,7 +108,7 @@ static void test_stap(void)
 /* Test the STORE CPU ID instruction */
 static void test_stidp(void)
 {
-	struct cpuid id = {};
+	struct cpuid id = { 0 };
 
 	asm volatile ("stidp %0\n" : "+Q"(id));
 	report("type set", id.type);
-- 
1.8.3.1