linux-kernel - [PATCH] drm/amd/display: Remove the unused variable pre_connection

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Date:   Fri, 10 Feb 2023 10:43:43 +0800
From:   Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
To:     alexander.deucher@....com
Cc:     christian.koenig@....com, Xinhui.Pan@....com, airlied@...il.com,
        daniel@...ll.ch, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>,
        Abaci Robot <abaci@...ux.alibaba.com>
Subject: [PATCH] drm/amd/display: Remove the unused variable pre_connection_type

Variable pre_connection_type is not effectively used, so delete it.

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=4031
Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
---
 drivers/gpu/drm/amd/display/dc/link/link_detection.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/link/link_detection.c b/drivers/gpu/drm/amd/display/dc/link/link_detection.c
index 63e75c392031..d224a44c4cc8 100644
--- a/drivers/gpu/drm/amd/display/dc/link/link_detection.c
+++ b/drivers/gpu/drm/amd/display/dc/link/link_detection.c
@@ -886,7 +886,6 @@ static bool detect_link_and_local_sink(struct dc_link *link,
 	struct dc_sink *prev_sink = NULL;
 	struct dpcd_caps prev_dpcd_caps;
 	enum dc_connection_type new_connection_type = dc_connection_none;
-	enum dc_connection_type pre_connection_type = dc_connection_none;
 	const uint32_t post_oui_delay = 30; // 30ms
 
 	DC_LOGGER_INIT(link->ctx->logger);
@@ -923,7 +922,6 @@ static bool detect_link_and_local_sink(struct dc_link *link,
 
 	link_disconnect_sink(link);
 	if (new_connection_type != dc_connection_none) {
-		pre_connection_type = link->type;
 		link->type = new_connection_type;
 		link->link_state_valid = false;
 
-- 
2.20.1.7.g153144c