From: Qianqiang Liu <qianqiang.liu@163.com>
To: Jinchao Wang <wangjinchao600@gmail.com>
Cc: pmladek@suse.com, akpm@linux-foundation.org,
"Simona Vetter" <simona@ffwll.ch>, "Helge Deller" <deller@gmx.de>,
"Thomas Zimmermann" <tzimmermann@suse.de>,
"Ville Syrjälä" <ville.syrjala@linux.intel.com>,
"Shixiong Ou" <oushixiong@kylinos.cn>,
"Sravan Kumar Gundu" <sravankumarlpu@gmail.com>,
"Zsolt Kajtar" <soci@c64.rulez.org>,
"Kees Cook" <kees@kernel.org>,
linux-kernel@vger.kernel.org, feng.tang@linux.alibaba.com,
joel.granados@kernel.org, john.ogness@linutronix.de,
namcao@linutronix.de, linux-fbdev@vger.kernel.org,
dri-devel@lists.freedesktop.org
Subject: Re: [PATCH 2/9] fbdev: Use panic_in_progress() helper
Date: Wed, 20 Aug 2025 18:44:27 +0800 [thread overview]
Message-ID: <aKWnC4N8d4lBPrNi@debian.debian.local> (raw)
In-Reply-To: <20250820091702.512524-3-wangjinchao600@gmail.com>
On Wed, Aug 20, 2025 at 05:14:47PM +0800, Jinchao Wang wrote:
> This patch updates the fbcon_skip_panic() function to use
> the panic_in_progress() helper.
>
> The previous direct access to panic_cpu is less
> readable and is being replaced by a dedicated function
> that more clearly expresses the intent.
>
> This change is part of a series to refactor the kernel's
> panic handling logic for better clarity and robustness.
>
> Signed-off-by: Jinchao Wang <wangjinchao600@gmail.com>
> ---
> drivers/video/fbdev/core/fbcon.c | 9 +--------
> 1 file changed, 1 insertion(+), 8 deletions(-)
>
> diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
> index 55f5731e94c3..b062b05f4128 100644
> --- a/drivers/video/fbdev/core/fbcon.c
> +++ b/drivers/video/fbdev/core/fbcon.c
> @@ -279,14 +279,7 @@ static int fbcon_get_rotate(struct fb_info *info)
>
> static bool fbcon_skip_panic(struct fb_info *info)
> {
> -/* panic_cpu is not exported, and can't be used if built as module. Use
> - * oops_in_progress instead, but non-fatal oops won't be printed.
> - */
> -#if defined(MODULE)
> - return (info->skip_panic && unlikely(oops_in_progress));
> -#else
> - return (info->skip_panic && unlikely(atomic_read(&panic_cpu) != PANIC_CPU_INVALID));
> -#endif
> + return (info->skip_panic && unlikely(panic_in_progress()));
> }
>
> static inline bool fbcon_is_active(struct vc_data *vc, struct fb_info *info)
> --
> 2.43.0
Acked-by Qianqiang Liu <qianqiang.liu@163.com>
--
Best,
Qianqiang Liu
prev parent reply other threads:[~2025-08-20 10:45 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-20 9:14 [PATCH 0/9] panic: introduce panic status function family Jinchao Wang
2025-08-20 9:14 ` [PATCH 1/9] panic: Introduce helper functions for panic state Jinchao Wang
2025-08-20 9:14 ` [PATCH 2/9] fbdev: Use panic_in_progress() helper Jinchao Wang
2025-08-20 9:14 ` [PATCH 3/9] crash_core: use panic_try_start() in crash_kexec() Jinchao Wang
2025-08-20 9:14 ` [PATCH 4/9] panic: use panic_try_start() in nmi_panic() Jinchao Wang
2025-08-20 9:14 ` [PATCH 5/9] panic: use panic_try_start() in vpanic() Jinchao Wang
2025-08-20 9:14 ` [PATCH 6/9] printk/nbcon: use panic_on_this_cpu() helper Jinchao Wang
2025-08-20 9:14 ` [PATCH 7/9] panic/printk: replace this_cpu_in_panic() with panic_on_this_cpu() Jinchao Wang
2025-08-20 9:14 ` [PATCH 8/9] panic/printk: replace other_cpu_in_panic() with panic_on_other_cpu() Jinchao Wang
2025-08-20 9:14 ` [PATCH 9/9] watchdog: skip checks when panic is in progress Jinchao Wang
2025-08-20 15:18 ` Yury Norov
2025-08-21 1:29 ` Jinchao Wang
2025-08-25 10:05 ` [PATCH 8/9] panic/printk: replace other_cpu_in_panic() with panic_on_other_cpu() John Ogness
2025-08-25 9:53 ` [PATCH 6/9] printk/nbcon: use panic_on_this_cpu() helper John Ogness
2025-08-26 0:58 ` Jinchao Wang
2025-08-20 13:35 ` [PATCH 3/9] crash_core: use panic_try_start() in crash_kexec() Baoquan He
2025-08-20 13:43 ` Baoquan He
2025-08-21 2:43 ` Baoquan He
2025-08-21 3:41 ` Jinchao Wang
2025-08-20 10:44 ` Qianqiang Liu [this message]
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