[PATCH 5/5] poll: kill poll_does_not_wait()

Oleg Nesterov
2025-01-07T16:28:23Z

It no longer has users.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
---
include/linux/poll.h | 16 +++-------------
1 file changed, 3 insertions(+), 13 deletions(-)

diff --git a/include/linux/poll.h b/include/linux/poll.h
index 57b6d1ccd8bf..12bb18e8b978 100644
--- a/include/linux/poll.h
+++ b/include/linux/poll.h
@@ -25,14 +25,14 @@

struct poll_table_struct;

-/*
+/*
* structures and helpers for f_op->poll implementations
*/
typedef void (*poll_queue_proc)(struct file *, wait_queue_head_t *, struct poll_table_struct *);

/*
- * Do not touch the structure directly, use the access functions
- * poll_does_not_wait() and poll_requested_events() instead.
+ * Do not touch the structure directly, use the access function
+ * poll_requested_events() instead.
*/
typedef struct poll_table_struct {
poll_queue_proc _qproc;
@@ -53,16 +53,6 @@ static inline void poll_wait(struct file * filp, wait_queue_head_t * wait_addres
}
}

-/*
- * Return true if it is guaranteed that poll will not wait. This is the case
- * if the poll() of another file descriptor in the set got an event, so there
- * is no need for waiting.
- */
-static inline bool poll_does_not_wait(const poll_table *p)
-{
- return p == NULL || p->_qproc == NULL;
-}
-
/*
* Return the set of events that the application wants to poll for.
* This is useful for drivers that need to know whether a DMA transfer has
--
2.25.1.362.g51ebf55