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authorBenjamin Poirier <benjamin.poirier@gmail.com>2011-04-20 19:39:02 -0400
committerAurelien Jarno <aurelien@aurel32.net>2011-04-25 22:17:56 +0200
commitec48c7747acd1be25ca70586bc4e6640765e40c8 (patch)
tree8f7f11eb6e9521ecaa9fbd70e41eaf15f738503e /hw
parent7cdeb319e46b8aeef866e17119093e1646e77b02 (diff)
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rtl8139: add format attribute to DPRINTF
gcc can check the format string for correctness even when debugging output is not enabled. Have to make sure arguments are always available. They are optimized out if unneeded. Signed-off-by: Benjamin Poirier <benjamin.poirier@gmail.com> Cc: Igor V. Kovalenko <igor.v.kovalenko@gmail.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'hw')
-rw-r--r--hw/rtl8139.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/hw/rtl8139.c b/hw/rtl8139.c
index 13b14e4..cbf667a 100644
--- a/hw/rtl8139.c
+++ b/hw/rtl8139.c
@@ -88,7 +88,11 @@
# define DPRINTF(fmt, ...) \
do { fprintf(stderr, "RTL8139: " fmt, ## __VA_ARGS__); } while (0)
#else
-# define DPRINTF(fmt, ...) do { } while (0)
+static inline __attribute__ ((format (printf, 1, 2)))
+ int DPRINTF(const char *fmt, ...)
+{
+ return 0;
+}
#endif
/* Symbolic offsets to registers. */
@@ -2201,9 +2205,8 @@ static int rtl8139_cplus_transmit_one(RTL8139State *s)
if ((txdw0 & CP_TX_LGSEN) && ip_protocol == IP_PROTO_TCP)
{
-#if defined (DEBUG_RTL8139)
int large_send_mss = (txdw0 >> 16) & CP_TC_LGSEN_MSS_MASK;
-#endif
+
DPRINTF("+++ C+ mode offloaded task TSO MTU=%d IP data %d "
"frame data %d specified MSS=%d\n", ETH_MTU,
ip_data_len, saved_size - ETH_HLEN, large_send_mss);