linux-kernel - [PATCH][next] amdgpu/dc: remove various variables that are defined but never used

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Date:   Tue, 18 Dec 2018 13:05:54 +0000
From:   Colin King <colin.king@...onical.com>
To:     Harry Wentland <harry.wentland@....com>,
        Leo Li <sunpeng.li@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        David Zhou <David1.Zhou@....com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH][next] amdgpu/dc: remove various variables that are defined but never used

From: Colin Ian King <colin.king@...onical.com>

There are several variables that are defined and never used and hence can
be removed. Remove them. Cleans up clang -Wunused-const-variable warnings:

warning: ‘dvi_hdmi_dongle_signature_str’ defined but not used
warning: ‘dce11_one_lpt_channel_max_resolution’ defined but not used
warning: ‘ddc_hw_status_addr’ defined but not used

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c      |  1 -
 .../gpu/drm/amd/display/dc/dce110/dce110_compressor.c  |  2 --
 .../amd/display/dc/i2caux/dce80/i2c_sw_engine_dce80.c  | 10 ----------
 3 files changed, 13 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c
index 506a97e16956..99a314b79850 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c
@@ -42,7 +42,6 @@
 #define CV_SMART_DONGLE_ADDRESS 0x20
 /* DVI-HDMI dongle slave address for retrieving dongle signature*/
 #define DVI_HDMI_DONGLE_ADDRESS 0x68
-static const int8_t dvi_hdmi_dongle_signature_str[] = "6140063500G";
 struct dvi_hdmi_dongle_signature_data {
 	int8_t vendor[3];/* "AMD" */
 	uint8_t version[2];
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c
index 52d50e24a995..7b23239d33fe 100644
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c
@@ -62,8 +62,6 @@ static const struct dce110_compressor_reg_offsets reg_offsets[] = {
 }
 };
 
-static const uint32_t dce11_one_lpt_channel_max_resolution = 2560 * 1600;
-
 static uint32_t align_to_chunks_number_per_line(uint32_t pixels)
 {
 	return 256 * ((pixels + 255) / 256);
diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2c_sw_engine_dce80.c b/drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2c_sw_engine_dce80.c
index 4853ee26096a..c9d6cf08e8ab 100644
--- a/drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2c_sw_engine_dce80.c
+++ b/drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2c_sw_engine_dce80.c
@@ -50,16 +50,6 @@
  * This unit
  */
 
-static const uint32_t ddc_hw_status_addr[] = {
-	mmDC_I2C_DDC1_HW_STATUS,
-	mmDC_I2C_DDC2_HW_STATUS,
-	mmDC_I2C_DDC3_HW_STATUS,
-	mmDC_I2C_DDC4_HW_STATUS,
-	mmDC_I2C_DDC5_HW_STATUS,
-	mmDC_I2C_DDC6_HW_STATUS,
-	mmDC_I2C_DDCVGA_HW_STATUS
-};
-
 /*
  * @brief
  * Cast 'struct i2c_sw_engine *'
-- 
2.19.1