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-rw-r--r--io/channel-websock.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/io/channel-websock.c b/io/channel-websock.c
index d1d471f86e..7bf1340958 100644
--- a/io/channel-websock.c
+++ b/io/channel-websock.c
@@ -151,9 +151,10 @@ enum {
QIO_CHANNEL_WEBSOCK_OPCODE_PONG = 0xA
};
-static void qio_channel_websock_handshake_send_res(QIOChannelWebsock *ioc,
- const char *resmsg,
- ...)
+static void GCC_FMT_ATTR(2, 3)
+qio_channel_websock_handshake_send_res(QIOChannelWebsock *ioc,
+ const char *resmsg,
+ ...)
{
va_list vargs;
char *response;