linux-kernel - [PATCH 2/2] drm/panic: Restrict graphical logo handling to built-in

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Date: Wed, 26 Jun 2024 10:41:45 +0200
From: Geert Uytterhoeven <geert+renesas@...der.be>
To: Jocelyn Falempe <jfalempe@...hat.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>,
	Daniel Vetter <daniel@...ll.ch>
Cc: dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	kernel test robot <lkp@...el.com>
Subject: [PATCH 2/2] drm/panic: Restrict graphical logo handling to built-in

When CONFIG_DRM_PANIC=y, but CONFIG_DRM=m:

    ld: drivers/gpu/drm/drm_panic.o: in function `drm_panic_setup_logo':
    drivers/gpu/drm/drm_panic.c:99: multiple definition of `init_module'; drivers/gpu/drm/drm_drv.o:drivers/gpu/drm/drm_drv.c:1079: first defined here

Fix this by restricting the graphical logo handling and its
device_initcall() to the built-in case.  Logos are freed during late
kernel initialization, so they are no longer available at module load
time anyway.

Fixes: 294bbd1f2697ff28 ("drm/panic: Add support for drawing a monochrome graphical logo")
Reported-by: kernel test robot <lkp@...el.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202406261341.GYsbLpN1-lkp@intel.com/
Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
---
 drivers/gpu/drm/drm_panic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_panic.c b/drivers/gpu/drm/drm_panic.c
index 67f78b5a76b61e3d..948aed00595eb6dd 100644
--- a/drivers/gpu/drm/drm_panic.c
+++ b/drivers/gpu/drm/drm_panic.c
@@ -91,7 +91,7 @@ static const struct drm_panic_line logo_ascii[] = {
 	PANIC_LINE(" \\___)=(___/"),
 };
 
-#ifdef CONFIG_LOGO
+#if defined(CONFIG_LOGO) && !defined(MODULE)
 static const struct linux_logo *logo_mono;
 
 static int drm_panic_setup_logo(void)
-- 
2.34.1