reduce logspam in sdr.c

src/libsdr/sdr.c

@@ -35,6 +35,7 @@ enum paging_signal;
 #include "../libmobile/sender.h"
 #include "sdr_config.h"
 #include "sdr.h"
+#include <time.h>
 #ifdef HAVE_UHD
 #include "uhd.h"
 #endif
@@ -981,7 +982,12 @@ int sdr_read(void *inst, sample_t **samples, int num, int channels, double *rf_l
 	}
 
 	if (sdr_rx_overflow) {
-		LOGP(DSDR, LOGL_ERROR, "SDR RX overflow!\n");
+		static double last_log=0;
+		double now = get_time();
+		if (now - last_log > 1.0) { // Log once per second to reduce logspam
+			LOGP(DSDR, LOGL_ERROR, "SDR RX overflow!\n");
+			last_log = now;
+		}
 		sdr_rx_overflow = 0;
 	}