From: Andy Shevchenko <andriy.shevchenko@intel.com>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Runyu Xiao <runyu.xiao@seu.edu.cn>,
Linus Walleij <linus.walleij@linaro.org>,
Bartosz Golaszewski <brgl@kernel.org>,
Orson Zhai <orsonzhai@gmail.com>,
Baolin Wang <baolin.wang@linux.alibaba.com>,
Chunyan Zhang <zhang.lyra@gmail.com>,
Andy Shevchenko <andy@kernel.org>,
Clark Williams <clrkwllms@kernel.org>,
Steven Rostedt <rostedt@goodmis.org>,
Jan Kiszka <jan.kiszka@siemens.com>,
linux-gpio@vger.kernel.org, linux-rt-devel@lists.linux.dev,
linux-kernel@vger.kernel.org, jianhao.xu@seu.edu.cn,
stable@vger.kernel.org
Subject: Re: [PATCH 1/2] gpio: sch: use raw_spinlock_t in the irq startup path
Date: Thu, 18 Jun 2026 09:41:50 +0300 [thread overview]
Message-ID: <ajOTLrrUCBxsy5jf@ashevche-desk.local> (raw)
In-Reply-To: <ajOS2UR9pw_pUBxr@ashevche-desk.local>
On Thu, Jun 18, 2026 at 09:40:31AM +0300, Andy Shevchenko wrote:
> On Thu, Jun 18, 2026 at 08:28:39AM +0200, Sebastian Andrzej Siewior wrote:
> > On 2026-06-17 23:40:34 [+0800], Runyu Xiao wrote:
> > > sch_irq_unmask() enables the GPIO IRQ and then updates the controller
> > > state through sch_irq_mask_unmask(), which takes sch->lock with
> > > spin_lock_irqsave(). The callback can be reached from irq_startup()
> > > while setting up a requested IRQ. That path is not sleepable, but on
> > > PREEMPT_RT a regular spinlock_t becomes a sleeping lock.
…
> > > Fixes: 7a81638485c1 ("gpio: sch: Add edge event support")
> > > Cc: stable@vger.kernel.org
> > > Signed-off-by: Runyu Xiao <runyu.xiao@seu.edu.cn>
> >
> > Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
>
> There is already a v2.
Or not... I might have been confused with other patch that got two versions
in a row.
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2026-06-18 6:41 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-17 15:40 [PATCH 0/2] gpio: use raw spinlocks in irq startup paths Runyu Xiao
2026-06-17 15:40 ` [PATCH 1/2] gpio: sch: use raw_spinlock_t in the irq startup path Runyu Xiao
2026-06-17 15:57 ` Andy Shevchenko
2026-06-18 6:28 ` Sebastian Andrzej Siewior
2026-06-18 6:40 ` Andy Shevchenko
2026-06-18 6:41 ` Andy Shevchenko [this message]
2026-06-18 8:18 ` Sebastian Andrzej Siewior
2026-06-17 15:40 ` [PATCH 2/2] gpio: eic-sprd: " Runyu Xiao
2026-06-18 6:32 ` Sebastian Andrzej Siewior
2026-06-18 8:02 ` [PATCH 0/2] gpio: use raw spinlocks in irq startup paths Bartosz Golaszewski
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