From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: ende.tan@starfivetech.com
Cc: linux-kernel@vger.kernel.org, tglx@linutronix.de,
rostedt@goodmis.org, linux-rt-users@vger.kernel.org,
leyfoon.tan@starfivetech.com, endeneer@gmail.com
Subject: Re: [RT,1/1] tty/serial/sifive: Make the locking RT aware
Date: Tue, 3 Dec 2024 11:36:11 +0100 [thread overview]
Message-ID: <20241203103611._nfkyEXJ@linutronix.de> (raw)
In-Reply-To: <20241203094009.67697-1-ende.tan@starfivetech.com>
On 2024-12-03 17:40:09 [+0800], ende.tan@starfivetech.com wrote:
> From: Tan En De <ende.tan@starfivetech.com>
>
> The lock is a sleeping lock and local_irq_save() is not the optimsation
> we are looking for. Redo it to make it work on -RT and non-RT.
You need to state which kernel this needs to be applied to.
The change you looking for is
32c694ec3efc2 ("serial: sifive: Use uart_prepare_sysrq_char() to handle sysrq.")
> Signed-off-by: Tan En De <ende.tan@starfivetech.com>
> Signed-off-by: Tan Ley Foon <leyfoon.tan@starfivetech.com>
Sebastian
next prev parent reply other threads:[~2024-12-03 10:36 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-03 9:40 [RT,1/1] tty/serial/sifive: Make the locking RT aware ende.tan
2024-12-03 10:36 ` Sebastian Andrzej Siewior [this message]
2024-12-04 15:24 ` EnDe Tan
2024-12-05 8:06 ` Sebastian Andrzej Siewior
2024-12-06 16:30 ` Clark Williams
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