linux-kernel - [GIT PULL] TTY/Serial driver fixes for 5.8-rc6

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Date:   Thu, 16 Jul 2020 17:29:17 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Jiri Slaby <jslaby@...e.cz>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org
Subject: [GIT PULL] TTY/Serial driver fixes for 5.8-rc6

The following changes since commit 48778464bb7d346b47157d21ffde2af6b2d39110:

  Linux 5.8-rc2 (2020-06-21 15:45:29 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tags/tty-5.8-rc6

for you to fetch changes up to f743061a85f5e9989df22ccbf07c80c98fc90e08:

  serial: core: Initialise spin lock before use in uart_configure_port() (2020-07-10 14:44:46 +0200)

----------------------------------------------------------------
TTY/Serial driver fixes for 5.8-rc6

Here are some small tty and serial driver fixes for 5.8-rc6.

The largest set of patches in here is a revert of the sysrq changes that
went into 5.8-rc1 but turned out to cause a noticable overhead and cpu
usage.

Other than that, there's a few small serial driver fixes to resolve
reported issues, and finally resolving the spinlock init problem on many
serial driver consoles.

All of these have been in linux-next for a while with no reported
issues.

Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

----------------------------------------------------------------
Andy Shevchenko (1):
      serial: core: Initialise spin lock before use in uart_configure_port()

Christophe Leroy (1):
      tty: serial: cpm_uart: Fix behaviour for non existing GPIOs

Chuhong Yuan (1):
      serial: mxs-auart: add missed iounmap() in probe failure and remove

Jan Kiszka (1):
      Revert "tty: xilinx_uartps: Fix missing id assignment to the console"

Johan Hovold (3):
      Revert "serial: core: Refactor uart_unlock_and_check_sysrq()"
      serial: core: fix sysrq overhead regression
      serial: core: drop redundant sysrq checks

Lad Prabhakar (1):
      serial: sh-sci: Initialize spinlock for uart console

Randy Dunlap (1):
      tty/serial: fix serial_core.c kernel-doc warnings

 drivers/tty/serial/cpm_uart/cpm_uart_core.c |   9 ++-
 drivers/tty/serial/mxs-auart.c              |  12 ++-
 drivers/tty/serial/serial_core.c            | 115 ++++------------------------
 drivers/tty/serial/sh-sci.c                 |   3 +
 drivers/tty/serial/xilinx_uartps.c          |   1 -
 include/linux/serial_core.h                 | 102 +++++++++++++++++++++++-
 6 files changed, 134 insertions(+), 108 deletions(-)