linux-kernel - Re: [PATCH] tty:serial:imx: use spin_lock instead of spin_lock

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Message-ID: <CAGsJ_4yLruLKnKc6kpr1JZ8BSSS4wAyvxeGm6A+S7-rLAZAVmg@mail.gmail.com>
Date:   Tue, 28 Aug 2018 16:36:38 +0800
From:   Barry Song <21cnbao@...il.com>
To:     hangdianqj@....com
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>, jslaby@...e.com,
        linux-serial@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] tty:serial:imx: use spin_lock instead of
 spin_lock_irqsave in isr

jun qian <hangdianqj@....com> 于2018年8月27日周一 下午10:49写道：
>
> Before the program enters the uart ISR, the local interrupt has been
> disabled by the system, so it's not appropriate to use spin_lock_irqsave
> interface in the ISR.
>
> Signed-off-by: jun qian <hangdianqj@....com>

many discussions have been done with jun in wechat regarding this patch. and

Reviewed-by: Barry Song <21cnbao@...il.com>

> ---
>  drivers/tty/serial/imx.c | 21 ++++++++-------------
>  1 file changed, 8 insertions(+), 13 deletions(-)
>