refclock: update comment in PHC driver

Since Linux 6.7 external timestamping events are no longer shared among
all descriptors of a PHC. Each descriptor gets its own copy of each
timestamp.

diff --git a/refclock_phc.c b/refclock_phc.c
index abda2e87705e62c921a3aef246a661775fd31bc1..e12f22583861e2d7d90560fdaa9a53e2262aab9c 100644 (file)
--- a/refclock_phc.c
+++ b/refclock_phc.c
@@ -175,7 +175,7 @@ static void read_ext_pulse(int fd, int event, void *anything)
   instance = anything;
   phc1 = RCL_GetDriverData(instance);
 
-  /* The Linux kernel (as of 6.2) has one shared queue of timestamps for all
+  /* Linux versions before 6.7 had one shared queue of timestamps for all
      descriptors of the same PHC.  Search for all refclocks that expect
      the timestamp. */