The comment for seq_buf_has_overflowed() says that an overflow condition is
marked by len == size, but that's not what the code is testing.  Make the
comment match reality.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
---
 include/linux/seq_buf.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/seq_buf.h b/include/linux/seq_buf.h
index 515d7fcb9634..026302765494 100644
--- a/include/linux/seq_buf.h
+++ b/include/linux/seq_buf.h
@@ -39,7 +39,7 @@ seq_buf_init(struct seq_buf *s, char *buf, unsigned int size)
 
 /*
  * seq_buf have a buffer that might overflow. When this happens
- * the len and size are set to be equal.
+ * len is set to be greater than size.
  */
 static inline bool
 seq_buf_has_overflowed(struct seq_buf *s)
-- 
2.41.0

On Fri, 20 Oct 2023 14:38:49 -0600
Jonathan Corbet <corbet@lwn.net> wrote:

> The comment for seq_buf_has_overflowed() says that an overflow condition is
> marked by len == size, but that's not what the code is testing.  Make the
> comment match reality.
> 

I guess we can add:

Fixes: 8cd709ae7658a ("tracing: Have seq_buf use full buffer")

Thanks!

-- Steve

> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
> ---
>  include/linux/seq_buf.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/include/linux/seq_buf.h b/include/linux/seq_buf.h
> index 515d7fcb9634..026302765494 100644
> --- a/include/linux/seq_buf.h
> +++ b/include/linux/seq_buf.h
> @@ -39,7 +39,7 @@ seq_buf_init(struct seq_buf *s, char *buf, unsigned int size)
>  
>  /*
>   * seq_buf have a buffer that might overflow. When this happens
> - * the len and size are set to be equal.
> + * len is set to be greater than size.
>   */
>  static inline bool
>  seq_buf_has_overflowed(struct seq_buf *s)