schannel: Fixed compilation warning in vtls.c

vtls.c:688:43: warning: unused parameter 'data'

diff --git a/lib/vtls/curl_schannel.h b/lib/vtls/curl_schannel.h
index aac25db83be46c3b20eaeedec11ff9d688c6a9a6..700516b3575d2c1cbb884db6d5b5dcfc9718454a 100644 (file)
--- a/lib/vtls/curl_schannel.h
+++ b/lib/vtls/curl_schannel.h
@@ -131,6 +131,7 @@ int Curl_schannel_random(unsigned char *entropy, size_t length);
 #define curlssl_check_cxn(x) (x=x, -1)
 #define curlssl_data_pending Curl_schannel_data_pending
 #define CURL_SSL_BACKEND CURLSSLBACKEND_SCHANNEL
-#define curlssl_random(x,y,z) Curl_schannel_random(y,z)
+#define curlssl_random(x,y,z) ((void)x, Curl_schannel_random(y,z))
+
 #endif /* USE_SCHANNEL */
 #endif /* HEADER_CURL_SCHANNEL_H */