[PATCH 01/13] seq_file: mark seq_get_buf as deprecated

Christoph Hellwig
2021-09-13T05:44:05Z

This function pokes a big hole into the seq_file abstraction.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/linux/seq_file.h | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index dd99569595fd3..db16b11477875 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -59,6 +59,10 @@ static inline bool seq_has_overflowed(struct seq_file *m)
*
* Return the number of bytes available in the buffer, or zero if
* there's no space.
+ *
+ * DOT NOT USE IN NEW CODE! This function pokes a hole into the whole seq_file
+ * abstraction. The only remaining user outside of seq_file.c is sysfs, which
+ * is gradually moving away from using seq_get_buf directly.
*/
static inline size_t seq_get_buf(struct seq_file *m, char **bufp)
{
--
2.30.2