There is a typo here where '&' is used instead of '|' and it turns the statement into a noop. The original code is equivalent to: iter->flags &= ~((1 << 2) & (1 << 4)); Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> --- This is a static checker fix and I'm not super familiar with ftrace. Please review carefully. diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index a008663..97da2dc 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -2358,7 +2358,7 @@ static void reset_iter_read(struct ftrace_iterator *iter) { iter->pos = 0; iter->func_pos = 0; - iter->flags &= ~(FTRACE_ITER_PRINTALL & FTRACE_ITER_HASH); + iter->flags &= ~(FTRACE_ITER_PRINTALL | FTRACE_ITER_HASH); } static void *t_start(struct seq_file *m, loff_t *pos) -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html