linux-kernel - [PATCH] drm/omap: add CONFIG

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Message-Id: <20240719095942.3841009-1-arnd@kernel.org>
Date: Fri, 19 Jul 2024 11:59:31 +0200
From: Arnd Bergmann <arnd@...nel.org>
To: Tomi Valkeinen <tomi.valkeinen@...asonboard.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>,
	Ville Syrjälä <ville.syrjala@...ux.intel.com>
Cc: Arnd Bergmann <arnd@...db.de>,
	Nathan Chancellor <nathan@...nel.org>,
	Helge Deller <deller@....de>,
	Tony Lindgren <tony@...mide.com>,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] drm/omap: add CONFIG_MMU dependency

From: Arnd Bergmann <arnd@...db.de>

Compile-testing with CONFIG_MMU disabled causes a link error in omapdrm:

arm-linux-gnueabi-ld: drivers/gpu/drm/omapdrm/omap_gem.o: in function `omap_gem_fault_2d':
omap_gem.c:(.text+0x36e): undefined reference to `vmf_insert_mixed'
arm-linux-gnueabi-ld: drivers/gpu/drm/omapdrm/omap_gem.o: in function `omap_gem_fault':
omap_gem.c:(.text+0x74a): undefined reference to `vmf_insert_mixed'

Avoid this by adding a Kconfig dependency.

Fixes: dc6fcaaba5a5 ("drm/omap: Allow build with COMPILE_TEST=y")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/gpu/drm/omapdrm/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/omapdrm/Kconfig b/drivers/gpu/drm/omapdrm/Kconfig
index 3f7139e211d2..64e440a2649b 100644
--- a/drivers/gpu/drm/omapdrm/Kconfig
+++ b/drivers/gpu/drm/omapdrm/Kconfig
@@ -1,6 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config DRM_OMAP
 	tristate "OMAP DRM"
+	depends on MMU
 	depends on DRM && OF
 	depends on ARCH_OMAP2PLUS || (COMPILE_TEST && PAGE_SIZE_LESS_THAN_64KB)
 	select DRM_KMS_HELPER
-- 
2.39.2