Received-SPF: pass (google.com: domain of linux-kernel+bounces-4121-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) client-ip=2604:1380:4601:e00::3;
From: Douglas Anderson <dianders@chromium.org>
To: dri-devel@lists.freedesktop.org
Cc: Guenter Roeck <groeck@chromium.org>,
	Douglas Anderson <dianders@chromium.org>,
	Andrzej Hajda <andrzej.hajda@intel.com>,
	Daniel Vetter <daniel@ffwll.ch>,
	David Airlie <airlied@gmail.com>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Jonas Karlman <jonas@kwiboo.se>,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Maxime Ripard <mripard@kernel.org>,
	Neil Armstrong <neil.armstrong@linaro.org>,
	Robert Foss <rfoss@kernel.org>,
	Sam Ravnborg <sam@ravnborg.org>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	linux-kernel@vger.kernel.org
Subject: [PATCH] drm/bridge: ps8640: Fix size mismatch warning w/ len
Date: Mon, 18 Dec 2023 09:04:54 -0800
Message-ID: <20231218090454.1.I5c6eb80b2f746439c4b58efab788e00701d08759@changeid>
Precedence: bulk
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit

After commit 26195af57798 ("drm/bridge: ps8640: Drop the ability of
ps8640 to fetch the EDID"), I got an error compiling:

  error: comparison of distinct pointer types
  ('typeof (len) *' (aka 'unsigned int *') and
   'typeof (msg->size) *' (aka 'unsigned long *'))
  [-Werror,-Wcompare-distinct-pointer-types]

Fix it by declaring the `len` as size_t.

Fixes: 26195af57798 ("drm/bridge: ps8640: Drop the ability of ps8640 to fetch the EDID")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
---
Sorry for sending this hot on the heels of the other patch, but for
some reason that other patch compiled fine for me until I picked it
back to my downstream tree. I'll see if I can track down why. In any
case, as soon as I see a Reviewed-by tag I'll land this.

 drivers/gpu/drm/bridge/parade-ps8640.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/parade-ps8640.c b/drivers/gpu/drm/bridge/parade-ps8640.c
index d264b80d909d..541e4f5afc4c 100644
--- a/drivers/gpu/drm/bridge/parade-ps8640.c
+++ b/drivers/gpu/drm/bridge/parade-ps8640.c
@@ -210,7 +210,7 @@ static ssize_t ps8640_aux_transfer_msg(struct drm_dp_aux *aux,
 	struct ps8640 *ps_bridge = aux_to_ps8640(aux);
 	struct regmap *map = ps_bridge->regmap[PAGE0_DP_CNTL];
 	struct device *dev = &ps_bridge->page[PAGE0_DP_CNTL]->dev;
-	unsigned int len = msg->size;
+	size_t len = msg->size;
 	unsigned int data;
 	unsigned int base;
 	int ret;
-- 
2.43.0.472.g3155946c3a-goog