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From: Nathan Chancellor <nathan@kernel.org>
To: Jocelyn Falempe <jfalempe@redhat.com>,
	 Javier Martinez Canillas <javierm@redhat.com>,
	 Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	 Maxime Ripard <mripard@kernel.org>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	 Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
	 Nathan Chancellor <nathan@kernel.org>
Subject: [PATCH 0/2] drm/panic: Avoid crash from invalid CONFIG_DRM_PANIC_SCREEN values
Date: Mon, 05 Jan 2026 23:19:25 -0700	[thread overview]
Message-ID: <20260105-drm_panic-handle-invalid-drm_panic_screen-v1-0-55228bd4b0f8@kernel.org> (raw)

Hi all,

This series addresses a couple of issues I noticed when accessing
/sys/module/drm/parameters/panic_screen on my Arch Linux machines, which
have "qr_code" as the value of CONFIG_DRM_PANIC_SCREEN. This happened to
be unsupported in my configuration since I was missing some Rust
dependencies in my environment for CONFIG_DRM_PANIC_SCREEN_QR_CODE,
resulting in a kernel crash. Patch one addresses the root cause of the
crash and patch two addresses an inconsistency I noticed between this
new code and the documented value for CONFIG_DRM_PANIC_SCREEN in Kconfig
for qr_code.

If there are any issues, please let me know.

---
Nathan Chancellor (2):
      drm/panic: Ensure drm_panic_type is initialized to a valid value
      drm/panic: Fix expected string for QR_CODE in drm_panic_type_map

 drivers/gpu/drm/drm_panic.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)
---
base-commit: 349d4efadc1f831ebc0b872ba1e3a2b7dd58b72b
change-id: 20260105-drm_panic-handle-invalid-drm_panic_screen-097e49e21c49

Best regards,
--  
Nathan Chancellor <nathan@kernel.org>


             reply	other threads:[~2026-01-06  6:19 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-01-06  6:19 Nathan Chancellor [this message]
2026-01-06  6:19 ` [PATCH 1/2] drm/panic: Ensure drm_panic_type is initialized to a valid value Nathan Chancellor
2026-01-06  8:24   ` Tvrtko Ursulin
2026-01-06 21:32   ` Jocelyn Falempe
2026-01-06  6:19 ` [PATCH 2/2] drm/panic: Fix expected string for QR_CODE in drm_panic_type_map Nathan Chancellor
2026-01-06  8:19   ` Tvrtko Ursulin
2026-01-06 21:34   ` Jocelyn Falempe
2026-01-09  8:55 ` [PATCH 0/2] drm/panic: Avoid crash from invalid CONFIG_DRM_PANIC_SCREEN values Tvrtko Ursulin

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