linux-kernel - [PATCH 2/9] fbdev: Use panic_in

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Message-ID: <20250820091702.512524-3-wangjinchao600@gmail.com>
Date: Wed, 20 Aug 2025 17:14:47 +0800
From: Jinchao Wang <wangjinchao600@...il.com>
To: pmladek@...e.com,
	akpm@...ux-foundation.org,
	Simona Vetter <simona@...ll.ch>,
	Helge Deller <deller@....de>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	Ville Syrjälä <ville.syrjala@...ux.intel.com>,
	Qianqiang Liu <qianqiang.liu@....com>,
	Shixiong Ou <oushixiong@...inos.cn>,
	Jinchao Wang <wangjinchao600@...il.com>,
	Sravan Kumar Gundu <sravankumarlpu@...il.com>,
	Zsolt Kajtar <soci@....rulez.org>,
	Kees Cook <kees@...nel.org>
Cc: linux-kernel@...r.kernel.org,
	feng.tang@...ux.alibaba.com,
	joel.granados@...nel.org,
	john.ogness@...utronix.de,
	namcao@...utronix.de,
	linux-fbdev@...r.kernel.org,
	dri-devel@...ts.freedesktop.org
Subject: [PATCH 2/9] fbdev: Use panic_in_progress() helper

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@...il.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