e1000e: Fix build with gcc 4.6.3 and ust tracing

This patch fixes used-uninitialized false
positive while compiling with ust tracing
backend plus gcc 4.6.3:

hw/net/e1000e.c: In function ‘e1000e_io_write’:
hw/net/e1000e.c:170:39: error: ‘idx’ may be used uninitialized in this function [-Werror=uninitialized]
hw/net/e1000e.c: In function ‘e1000e_io_read’:
hw/net/e1000e.c:145:35: error: ‘idx’ may be used uninitialized in this function [-Werror=uninitialized]
cc1: all warnings being treated as errors
make: *** [hw/net/e1000e.o] Error 1

Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-id: 1465023763-10773-1-git-send-email-dmitry@daynix.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Dmitry Fleytman 2016-06-04 10:02:43 +03:00 committed by Peter Maydell
parent 6b3532b20b
commit de5dca1b79

View File

@ -133,7 +133,7 @@ static uint64_t
e1000e_io_read(void *opaque, hwaddr addr, unsigned size)
{
E1000EState *s = opaque;
uint32_t idx;
uint32_t idx = 0;
uint64_t val;
switch (addr) {
@ -158,7 +158,7 @@ e1000e_io_write(void *opaque, hwaddr addr,
uint64_t val, unsigned size)
{
E1000EState *s = opaque;
uint32_t idx;
uint32_t idx = 0;
switch (addr) {
case E1000_IOADDR: