diff options
| author | Uros Bizjak <ubizjak@gmail.com> | 2023-03-05 16:55:30 +0100 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2023-03-21 18:59:31 +0100 |
| commit | b4b55dfd965057232abd317fbbfa31d8a2c16a49 (patch) | |
| tree | f3606d4b4ecfe0bf66490f5516b022a73d09fea1 /kernel/trace | |
| parent | ftrace: selftest: remove broken trace_direct_tramp (diff) | |
| download | linux-b4b55dfd965057232abd317fbbfa31d8a2c16a49.tar.xz linux-b4b55dfd965057232abd317fbbfa31d8a2c16a49.zip | |
ring_buffer: Change some static functions to void
The results of some static functions are not used. Change the
type of these function to void and remove unnecessary returns.
No functional change intended.
Link: https://lkml.kernel.org/r/20230305155532.5549-2-ubizjak@gmail.com
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Reviewed-by: Mukesh Ojha <quic_mojha@quicinc.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/ring_buffer.c | 22 |
1 files changed, 7 insertions, 15 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index c6f47b6cfd5f..b45915dd67b9 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -1565,15 +1565,12 @@ static void rb_tail_page_update(struct ring_buffer_per_cpu *cpu_buffer, } } -static int rb_check_bpage(struct ring_buffer_per_cpu *cpu_buffer, +static void rb_check_bpage(struct ring_buffer_per_cpu *cpu_buffer, struct buffer_page *bpage) { unsigned long val = (unsigned long)bpage; - if (RB_WARN_ON(cpu_buffer, val & RB_FLAG_MASK)) - return 1; - - return 0; + RB_WARN_ON(cpu_buffer, val & RB_FLAG_MASK); } /** @@ -1583,30 +1580,28 @@ static int rb_check_bpage(struct ring_buffer_per_cpu *cpu_buffer, * As a safety measure we check to make sure the data pages have not * been corrupted. */ -static int rb_check_pages(struct ring_buffer_per_cpu *cpu_buffer) +static void rb_check_pages(struct ring_buffer_per_cpu *cpu_buffer) { struct list_head *head = rb_list_head(cpu_buffer->pages); struct list_head *tmp; if (RB_WARN_ON(cpu_buffer, rb_list_head(rb_list_head(head->next)->prev) != head)) - return -1; + return; if (RB_WARN_ON(cpu_buffer, rb_list_head(rb_list_head(head->prev)->next) != head)) - return -1; + return; for (tmp = rb_list_head(head->next); tmp != head; tmp = rb_list_head(tmp->next)) { if (RB_WARN_ON(cpu_buffer, rb_list_head(rb_list_head(tmp->next)->prev) != tmp)) - return -1; + return; if (RB_WARN_ON(cpu_buffer, rb_list_head(rb_list_head(tmp->prev)->next) != tmp)) - return -1; + return; } - - return 0; } static int __rb_allocate_pages(struct ring_buffer_per_cpu *cpu_buffer, @@ -4496,7 +4491,6 @@ rb_update_read_stamp(struct ring_buffer_per_cpu *cpu_buffer, default: RB_WARN_ON(cpu_buffer, 1); } - return; } static void @@ -4527,7 +4521,6 @@ rb_update_iter_read_stamp(struct ring_buffer_iter *iter, default: RB_WARN_ON(iter->cpu_buffer, 1); } - return; } static struct buffer_page * @@ -4942,7 +4935,6 @@ rb_reader_unlock(struct ring_buffer_per_cpu *cpu_buffer, bool locked) { if (likely(locked)) raw_spin_unlock(&cpu_buffer->reader_lock); - return; } /** |