linux-kernel - linux-next: manual merge of the tty tree with the tty.current tree

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Message-ID: <20240411135735.58de7090@canb.auug.org.au>
Date: Thu, 11 Apr 2024 13:57:35 +1000
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Greg KH <greg@...ah.com>
Cc: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, Greg Kroah-Hartman
 <gregkh@...uxfoundation.org>, "Jiri Slaby (SUSE)" <jirislaby@...nel.org>,
 Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Linux Next
 Mailing List <linux-next@...r.kernel.org>
Subject: linux-next: manual merge of the tty tree with the tty.current tree

Hi all,

Today's linux-next merge of the tty tree got a conflict in:

  drivers/tty/serial/serial_core.c

between commit:

  9cf7ea2eeb74 ("serial: core: Clearing the circular buffer before NULLifying it")

from the tty.current tree and commit:

  1788cf6a91d9 ("tty: serial: switch from circ_buf to kfifo")

from the tty tree.

I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

-- 
Cheers,
Stephen Rothwell

diff --cc drivers/tty/serial/serial_core.c
index 2247efe97250,a78ded8c60b5..000000000000
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@@ -1788,9 -1773,9 +1773,10 @@@ static void uart_tty_port_shutdown(stru
  	 * Free the transmit buffer.
  	 */
  	uart_port_lock_irq(uport);
 +	uart_circ_clear(&state->xmit);
- 	buf = state->xmit.buf;
- 	state->xmit.buf = NULL;
+ 	buf = port->xmit_buf;
+ 	port->xmit_buf = NULL;
+ 	INIT_KFIFO(port->xmit_fifo);
  	uart_port_unlock_irq(uport);
  
  	free_page((unsigned long)buf);

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