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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Johan Hovold <johan@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	Dmitry Safonov <0x7f454c46@gmail.com>,
	linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 0/3] serial: core: fix up sysrq regressions
Date: Wed, 10 Jun 2020 19:21:34 +0300	[thread overview]
Message-ID: <20200610162134.GL2428291@smile.fi.intel.com> (raw)
In-Reply-To: <20200610152232.16925-1-johan@kernel.org>

On Wed, Jun 10, 2020 at 05:22:29PM +0200, Johan Hovold wrote:
> This series fixes a few regressions introduced by the recent sysrq
> rework that went into 5.6.
> 
> The fix for the unnecessary per-character overhead probably could have
> been marked for stable but I left that decision to the maintainers as it
> is a bit intrusive (although mostly shuffling code around).

I see a problem, thanks for pointing out!
The fix LGTM! FWIW,
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

> 
> Johan
> 
> Changes in v2
>  - inline uart_unlock_and_check_sysrq() along with the other helpers
>    (restoring the interrupt state in a helper was never an issue)
> 
> 
> Johan Hovold (3):
>   Revert "serial: core: Refactor uart_unlock_and_check_sysrq()"
>   serial: core: fix sysrq overhead regression
>   serial: core: drop redundant sysrq checks
> 
>  drivers/tty/serial/serial_core.c |  96 +----------------------------
>  include/linux/serial_core.h      | 102 +++++++++++++++++++++++++++++--
>  2 files changed, 100 insertions(+), 98 deletions(-)
> 
> -- 
> 2.26.2
> 

-- 
With Best Regards,
Andy Shevchenko



  parent reply	other threads:[~2020-06-10 16:21 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-10 15:22 [PATCH v2 0/3] serial: core: fix up sysrq regressions Johan Hovold
2020-06-10 15:22 ` [PATCH v2 1/3] Revert "serial: core: Refactor uart_unlock_and_check_sysrq()" Johan Hovold
2020-06-10 15:22 ` [PATCH v2 2/3] serial: core: fix sysrq overhead regression Johan Hovold
2020-06-10 16:24   ` Dmitry Safonov
2020-06-12 15:29     ` Johan Hovold
2020-06-12 15:42       ` Dmitry Safonov
2020-06-12 15:52   ` Dmitry Safonov
2020-06-10 15:22 ` [PATCH v2 3/3] serial: core: drop redundant sysrq checks Johan Hovold
2020-06-12 15:55   ` Dmitry Safonov
2020-06-10 16:21 ` Andy Shevchenko [this message]
2020-06-12 15:31   ` [PATCH v2 0/3] serial: core: fix up sysrq regressions Johan Hovold
2020-06-27 14:16 ` Greg Kroah-Hartman

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