linux-kernel - [PATCH 0/4] serial: core: fix up sysrq regressions

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Date:   Tue,  2 Jun 2020 16:00:54 +0200
From:   Johan Hovold <johan@...nel.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Jiri Slaby <jslaby@...e.com>,
        Dmitry Safonov <0x7f454c46@...il.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org,
        Johan Hovold <johan@...nel.org>
Subject: [PATCH 0/4] serial: core: fix up sysrq regressions

This series fixes a few regressions introduced by the recent sysrq
rework that went into 5.6.

The port unlock fix is tagged for stable, and the fix for the
unnecessary per-character overhead probably could be as well although
it is a bit more intrusive.

Johan


Johan Hovold (4):
  Revert "serial: core: Refactor uart_unlock_and_check_sysrq()"
  serial: core: fix broken sysrq port unlock
  serial: core: fix sysrq overhead regression
  serial: core: drop redundant sysrq checks

 drivers/tty/serial/serial_core.c |  96 +---------------------------
 include/linux/serial_core.h      | 105 +++++++++++++++++++++++++++++--
 2 files changed, 103 insertions(+), 98 deletions(-)

-- 
2.26.2