All of lore.kernel.org
 help / color / mirror / Atom feed
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


      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]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=aKWnC4N8d4lBPrNi@debian.debian.local \
    --to=qianqiang.liu@163.com \
    --cc=akpm@linux-foundation.org \
    --cc=deller@gmx.de \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=feng.tang@linux.alibaba.com \
    --cc=joel.granados@kernel.org \
    --cc=john.ogness@linutronix.de \
    --cc=kees@kernel.org \
    --cc=linux-fbdev@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=namcao@linutronix.de \
    --cc=oushixiong@kylinos.cn \
    --cc=pmladek@suse.com \
    --cc=simona@ffwll.ch \
    --cc=soci@c64.rulez.org \
    --cc=sravankumarlpu@gmail.com \
    --cc=tzimmermann@suse.de \
    --cc=ville.syrjala@linux.intel.com \
    --cc=wangjinchao600@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.