From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 11 Jan 2023 11:30:14 +0000 (+0100)
Subject: drm/mipi-dsi: move to_mipi_dsi_device() to use container_of_const()
X-Git-Tag: v6.3-rc1~106^2~72
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=dad1b442840f690f39ce376ee0d1a1e67346983c;p=thirdparty%2Fkernel%2Flinux.git

drm/mipi-dsi: move to_mipi_dsi_device() to use container_of_const()

The driver core is changing to pass some pointers as const, so move
to_mipi_dsi_device() to use container_of_const() to handle this change.

to_mipi_dsi_device() now properly keeps the const-ness of the pointer passed
into it, while as before it could be lost.

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230111113018.459199-13-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 20b21b577deaa..56a6557b2f4c1 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -197,10 +197,7 @@ struct mipi_dsi_device {
 
 #define MIPI_DSI_MODULE_PREFIX "mipi-dsi:"
 
-static inline struct mipi_dsi_device *to_mipi_dsi_device(struct device *dev)
-{
-	return container_of(dev, struct mipi_dsi_device, dev);
-}
+#define to_mipi_dsi_device(__dev)	container_of_const(__dev, struct mipi_dsi_device, dev)
 
 /**
  * mipi_dsi_pixel_format_to_bpp - obtain the number of bits per pixel for any