improved a comment

diff --git a/portaudio.c b/portaudio.c
index 6e6f4de64169f70fb81fb47edba90686987e46dc..bffe2ed43c26b8e359072d43c2e3979f62ffd1eb 100644 (file)
--- a/portaudio.c
+++ b/portaudio.c
@@ -418,14 +418,12 @@ void audio_close_output(RECEIVER *rx) {
 // we have to store the data such that the PA callback function
 // can access it.
 //
-//
 // Note that the check on isTransmitting() takes care that "blocking"
 // by the mutex can only occur in the moment of a RX/TX transition if
 // both audio_write() and cw_audio_write() get a "go".
 //
 // So mutex locking/unlocking should only cost few CPU cycles in
-// normal operation. This may be different on systems with several
-// CPU sockets if "locking" the mutex causes cache in-coherency.
+// normal operation.
 //
 int audio_write (RECEIVER *rx, float left, float right)
 {