CLEANUP: threads: use nbits to calculate the thread mask

It's pointless to do arithmetics by hand, we have a function for this.

diff --git a/src/hathreads.c b/src/hathreads.c
index a21bddd9eafc4369efb3e21a6e01d91e46109ce1..8a4085ee66e538d577b3e10e1db9adb5fa41228e 100644 (file)
--- a/src/hathreads.c
+++ b/src/hathreads.c
@@ -157,9 +157,7 @@ int parse_nbthread(const char *arg, char **err)
                return 0;
        }
 
-       /* we proceed like this to be sure never to overflow the left shift */
-       all_threads_mask = 1UL << (nbthread - 1);
-       all_threads_mask |= all_threads_mask - 1;
+       all_threads_mask = nbits(nbthread);
 #endif
        return nbthread;
 }