Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1362097

[PATCH] [JANITOR] Actually use the calculated cnt in kernel/trace/ring_buffer.c

From Mika Kukkonen <mikukkon@iki.fi>
Newsgroups linux.kernel
Subject [PATCH] [JANITOR] Actually use the calculated cnt in kernel/trace/ring_buffer.c
Date 2016-03-21 20:30 +0100
Message-ID <rfdGA-1FG-69@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

Show all headers | View raw


Was deleting an old github kernel tree and noticed this one line patch
I had made years back. Can't remember the compiler warning anymore but
clearly it complained about pointless assigment to cnt since it is not
used after that, although to me it looks like it should.

Signed-off-by: Mika Kukkonen <mikukkon@iki.fi>

diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 95181e3..22d1007 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -4756,7 +4756,7 @@ static __init int rb_write_something(struct
rb_test_data *data, bool nested)
        cnt = data->cnt + (nested ? 27 : 0);

        /* Multiply cnt by ~e, to make some unique increment */
-       size = (data->cnt * 68 / 25) % (sizeof(rb_string) - 1);
+       size = (cnt * 68 / 25) % (sizeof(rb_string) - 1);

        len = size + sizeof(struct rb_item);

--MiKu

Back to linux.kernel | Previous | NextNext in thread | Find similar | Unroll thread


Thread

[PATCH] [JANITOR] Actually use the calculated cnt in kernel/trace/ring_buffer.c Mika Kukkonen <mikukkon@iki.fi> - 2016-03-21 20:30 +0100
  Re: [PATCH] [JANITOR] Actually use the calculated cnt in  kernel/trace/ring_buffer.c Steven Rostedt <rostedt@goodmis.org> - 2016-03-21 20:50 +0100

csiph-web