[Qemu-devel] [PATCH] s390x: silence warning from GCC on uninitialized values

[Anthony Liguori]

As best I can tell, this is a false positive.

  address@hidden qemu-s390]$ make
    CC    s390x-softmmu/target-s390x/helper.o
  /home/aliguori/git/qemu/target-s390x/helper.c: In function ‘do_interrupt’:
  /home/aliguori/git/qemu/target-s390x/helper.c:673:17: error: ‘addr’ may be 
used uninitialized in this function [-Werror=maybe-uninitialized]
  /home/aliguori/git/qemu/target-s390x/helper.c:620:20: note: ‘addr’ was 
declared here
  /home/aliguori/git/qemu/target-s390x/helper.c:673:17: error: ‘mask’ may be 
used uninitialized in this function [-Werror=maybe-uninitialized]
  /home/aliguori/git/qemu/target-s390x/helper.c:620:14: note: ‘mask’ was 
declared here
  cc1: all warnings being treated as errors
  make[1]: *** [target-s390x/helper.o] Error 1
  make: *** [subdir-s390x-softmmu] Error 2

Cc: Cornelia Huck <address@hidden>
Cc: Stefan Weil <address@hidden>
Signed-off-by: Anthony Liguori <address@hidden>
---
 target-s390x/helper.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target-s390x/helper.c b/target-s390x/helper.c
index 8bd84ef..043feb2 100644
--- a/target-s390x/helper.c
+++ b/target-s390x/helper.c
@@ -617,7 +617,7 @@ static void do_ext_interrupt(CPUS390XState *env)
 
 static void do_io_interrupt(CPUS390XState *env)
 {
-    uint64_t mask, addr;
+    uint64_t mask = 0, addr = 0;
     LowCore *lowcore;
     IOIntQueue *q;
     uint8_t isc;
-- 
1.8.0