From a77ad4bf792652340ab334956e69b46ec2fdaefb Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 11 Jan 2023 12:30:03 +0100
Subject: of: device: make of_device_uevent_modalias() take a const device *

of_device_uevent_modalias() does not modify the device pointer passed to
it, so mark it constant.  In order to properly do this, a number of
busses need to have a modalias function added as they were attempting to
just point to of_device_uevent_modalias instead of their bus-specific
modalias function.  This is fine except if the prototype for a bus and
device type modalias function diverges and then problems could happen.  To
prevent all of that, just wrap the call to of_device_uevent_modalias()
directly for each bus and device type individually.

Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
Cc: Samuel Holland <samuel@sholland.org>
Cc: David Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Liang He <windhl@126.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Lyude Paul <lyude@redhat.com>
Cc: Corentin Labbe <clabbe@baylibre.com>
Cc: Zou Wei <zou_wei@huawei.com>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-sunxi@lists.linux.dev
Cc: dri-devel@lists.freedesktop.org
Cc: devicetree@vger.kernel.org
Acked-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230111113018.459199-2-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/display/drm_dp_aux_bus.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'drivers/gpu')

diff --git a/drivers/gpu/drm/display/drm_dp_aux_bus.c b/drivers/gpu/drm/display/drm_dp_aux_bus.c
index f5741b45ca07..e31a0261c53e 100644
--- a/drivers/gpu/drm/display/drm_dp_aux_bus.c
+++ b/drivers/gpu/drm/display/drm_dp_aux_bus.c
@@ -161,9 +161,14 @@ static void dp_aux_ep_dev_release(struct device *dev)
 	kfree(aux_ep_with_data);
 }
 
+static int dp_aux_ep_dev_modalias(struct device *dev, struct kobj_uevent_env *env)
+{
+	return of_device_uevent_modalias(dev, env);
+}
+
 static struct device_type dp_aux_device_type_type = {
 	.groups		= dp_aux_ep_dev_groups,
-	.uevent		= of_device_uevent_modalias,
+	.uevent		= dp_aux_ep_dev_modalias,
 	.release	= dp_aux_ep_dev_release,
 };
 
-- 
cgit