From: "Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>
To: Jacques Nilo <jnilo@free.fr>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jirislaby@kernel.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
linux-serial <linux-serial@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/3] serial: core: introduce guard(uart_port_lock_sysrq_irqsave)
Date: Wed, 13 May 2026 15:21:35 +0300 (EEST) [thread overview]
Message-ID: <f3d9c75f-48a5-684d-4f03-879ffa8118b6@linux.intel.com> (raw)
In-Reply-To: <20260513121205.45921-1-jnilo@free.fr>
[-- Attachment #1: Type: text/plain, Size: 1549 bytes --]
On Wed, 13 May 2026, Jacques Nilo wrote:
> On Wed, 13 May 2026, Ilpo Järvinen wrote:
>
> > > +DEFINE_LOCK_GUARD_1(uart_port_lock_sysrq_irqsave, struct uart_port,
> >
> > I suppose the "check" in the name is kind of important detail so maybe
> > it shouldn't be dropped from the guard name.
>
> Quick clarification before I respin: do you want this renamed in v2?
>
> I dropped the "check_" segment because the existing
> guard(uart_port_lock_irqsave) doesn't mirror its destructor's name
> either (it expands to uart_port_unlock_irqrestore, not
> uart_port_lock_irqsave_and_unlock_irqrestore), and the longer
> uart_port_lock_check_sysrq_irqsave starts to feel verbose. But I see
> the symmetry argument with uart_unlock_and_check_sysrq_irqrestore() and
> I have no strong attachment to the shorter name.
I meant guard(uart_port_lock_check_sysrq_irqsave)
The point is it does "check" sysrq. Though I admit I'm starting to see now
why you had irqsave earlier placed before sysrq.
It still fits to the expected indentation levels pretty well.
> If you'd like the rename, I'll do it for v2. If you're fine either
> way, I'll keep the current name -- patches 2/3 and 3/3 already have
> your Reviewed-by trailers on the call sites and I'd rather not
> invalidate those over a naming choice.
>
> The other points (commit-message reflow, Cc: stable on 1/3,
> single-line destructor formatting) are unambiguous and will land in
> v2 regardless.
>
> Thanks for the review.
>
> --
> Jacques
>
--
i.
next prev parent reply other threads:[~2026-05-13 12:21 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-12 12:38 [REPORT] serial: 8250: BREAK + SysRq dispatch silently broken since 8324a54f604d Jacques Nilo
2026-05-12 12:58 ` Ilpo Järvinen
2026-05-12 13:06 ` Jacques Nilo
2026-05-12 13:21 ` Ilpo Järvinen
2026-05-12 13:46 ` [PATCH 0/3] serial: 8250: fix BREAK+SysRq dispatch on guard()-locked IRQ handlers Jacques Nilo
2026-05-12 13:46 ` [PATCH 1/3] serial: core: introduce guard(uart_port_lock_sysrq_irqsave) Jacques Nilo
2026-05-13 12:01 ` Ilpo Järvinen
2026-05-13 12:10 ` Jacques Nilo
2026-05-13 12:21 ` Ilpo Järvinen [this message]
2026-05-12 13:46 ` [PATCH 2/3] serial: 8250: dispatch SysRq character in serial8250_handle_irq() Jacques Nilo
2026-05-13 11:49 ` Ilpo Järvinen
2026-05-12 13:46 ` [PATCH 3/3] serial: 8250_dw: dispatch SysRq character in dw8250_handle_irq() Jacques Nilo
2026-05-13 11:50 ` Ilpo Järvinen
2026-05-13 13:30 ` [PATCH v2 0/3] serial: 8250: fix BREAK+SysRq dispatch on guard()-locked IRQ handlers Jacques Nilo
2026-05-13 13:30 ` [PATCH v2 1/3] serial: core: introduce guard(uart_port_lock_check_sysrq_irqsave) Jacques Nilo
2026-05-13 13:35 ` Ilpo Järvinen
2026-05-13 13:30 ` [PATCH v2 2/3] serial: 8250: dispatch SysRq character in serial8250_handle_irq() Jacques Nilo
2026-05-13 13:30 ` [PATCH v2 3/3] serial: 8250_dw: dispatch SysRq character in dw8250_handle_irq() Jacques Nilo
2026-05-13 17:51 ` [PATCH v2 0/3] serial: 8250: fix BREAK+SysRq dispatch on guard()-locked IRQ handlers Andy Shevchenko
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