netdev - [PATCH 5/5] poll: kill poll_does_not

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Message-ID: <20250107162743.GA18947@redhat.com>
Date: Tue, 7 Jan 2025 17:27:43 +0100
From: Oleg Nesterov <oleg@...hat.com>
To: Christian Brauner <brauner@...nel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Manfred Spraul <manfred@...orfullife.com>
Cc: "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>, Jens Axboe <axboe@...nel.dk>,
	Pavel Begunkov <asml.silence@...il.com>,
	WangYuli <wangyuli@...ontech.com>, linux-kernel@...r.kernel.org,
	io-uring@...r.kernel.org, netdev@...r.kernel.org
Subject: [PATCH 5/5] poll: kill poll_does_not_wait()

It no longer has users.

Signed-off-by: Oleg Nesterov <oleg@...hat.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