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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        William Hubbs <w.d.hubbs@gmail.com>,
        Chris Brannon <chris@the-brannons.com>,
        Kirk Reiser <kirk@reisers.ca>,
        Samuel Thibault <samuel.thibault@ens-lyon.org>,
        Heiko Carstens <hca@linux.ibm.com>,
        Vasily Gorbik <gor@linux.ibm.com>,
        Christian Borntraeger <borntraeger@de.ibm.com>,
        Alexander Gordeev <agordeev@linux.ibm.com>,
        Johan Hovold <johan@kernel.org>, Jiri Slaby <jslaby@suse.cz>
Subject: [PATCH 4.19 54/62] tty: the rest, stop using tty_schedule_flip()
Date:   Wed, 27 Jul 2022 18:11:03 +0200
Message-Id: <20220727161006.261681396@linuxfoundation.org>
In-Reply-To: <20220727161004.175638564@linuxfoundation.org>
References: <20220727161004.175638564@linuxfoundation.org>
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From: Jiri Slaby <jslaby@suse.cz>

commit b68b914494df4f79b4e9b58953110574af1cb7a2 upstream.

Since commit a9c3f68f3cd8d (tty: Fix low_latency BUG) in 2014,
tty_flip_buffer_push() is only a wrapper to tty_schedule_flip(). We are
going to remove the latter (as it is used less), so call the former in
the rest of the users.

Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: William Hubbs <w.d.hubbs@gmail.com>
Cc: Chris Brannon <chris@the-brannons.com>
Cc: Kirk Reiser <kirk@reisers.ca>
Cc: Samuel Thibault <samuel.thibault@ens-lyon.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20211122111648.30379-3-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/alpha/kernel/srmcons.c         |    2 +-
 drivers/s390/char/keyboard.h        |    4 ++--
 drivers/staging/speakup/spk_ttyio.c |    4 ++--
 3 files changed, 5 insertions(+), 5 deletions(-)

--- a/arch/alpha/kernel/srmcons.c
+++ b/arch/alpha/kernel/srmcons.c
@@ -59,7 +59,7 @@ srmcons_do_receive_chars(struct tty_port
 	} while((result.bits.status & 1) && (++loops < 10));
 
 	if (count)
-		tty_schedule_flip(port);
+		tty_flip_buffer_push(port);
 
 	return count;
 }
--- a/drivers/s390/char/keyboard.h
+++ b/drivers/s390/char/keyboard.h
@@ -56,7 +56,7 @@ static inline void
 kbd_put_queue(struct tty_port *port, int ch)
 {
 	tty_insert_flip_char(port, ch, 0);
-	tty_schedule_flip(port);
+	tty_flip_buffer_push(port);
 }
 
 static inline void
@@ -64,5 +64,5 @@ kbd_puts_queue(struct tty_port *port, ch
 {
 	while (*cp)
 		tty_insert_flip_char(port, *cp++, 0);
-	tty_schedule_flip(port);
+	tty_flip_buffer_push(port);
 }
--- a/drivers/staging/speakup/spk_ttyio.c
+++ b/drivers/staging/speakup/spk_ttyio.c
@@ -88,7 +88,7 @@ static int spk_ttyio_receive_buf2(struct
 	}
 
 	if (!ldisc_data->buf_free)
-		/* ttyio_in will tty_schedule_flip */
+		/* ttyio_in will tty_flip_buffer_push */
 		return 0;
 
 	/* Make sure the consumer has read buf before we have seen
@@ -321,7 +321,7 @@ static unsigned char ttyio_in(int timeou
 	mb();
 	ldisc_data->buf_free = true;
 	/* Let TTY push more characters */
-	tty_schedule_flip(speakup_tty->port);
+	tty_flip_buffer_push(speakup_tty->port);
 
 	return rv;
 }