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Message-ID: <tencent_24A44EBAE7F05D812288B973A8EC2013BC09@qq.com>
Date: Tue, 17 Jun 2025 16:45:38 +0800
From: xiaopeitux@...mail.com
To: harry.wentland@....com,
sunpeng.li@....com,
alexander.deucher@....com,
christian.koenig@....com,
airlied@...il.com,
amd-gfx@...ts.freedesktop.org,
dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org
Cc: Pei Xiao <xiaopei01@...inos.cn>
Subject: [PATCH] drm/amd/display: sspl: Use of macro ARRAY_SIZE to calculate array size
From: Pei Xiao <xiaopei01@...inos.cn>
Use of macro ARRAY_SIZE to calculate array size and reduce the number of
lines of code.
cocci warning:
drivers/gpu/drm/amd/display/dc/sspl/dc_spl_scl_easf_filters.c:
WARNING: Use ARRAY_SIZE
Signed-off-by: Pei Xiao <xiaopei01@...inos.cn>
---
.../display/dc/sspl/dc_spl_scl_easf_filters.c | 50 +++++++------------
1 file changed, 17 insertions(+), 33 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/sspl/dc_spl_scl_easf_filters.c b/drivers/gpu/drm/amd/display/dc/sspl/dc_spl_scl_easf_filters.c
index 0d1bd81ff04a..1b11dc886a7e 100644
--- a/drivers/gpu/drm/amd/display/dc/sspl/dc_spl_scl_easf_filters.c
+++ b/drivers/gpu/drm/amd/display/dc/sspl/dc_spl_scl_easf_filters.c
@@ -1,7 +1,7 @@
// SPDX-License-Identifier: MIT
//
// Copyright 2024 Advanced Micro Devices, Inc.
-
+#include <linux/array_size.h>
#include "spl_debug.h"
#include "dc_spl_filters.h"
#include "dc_spl_scl_filters.h"
@@ -2409,8 +2409,7 @@ static uint32_t spl_easf_get_scale_ratio_to_reg_value(struct spl_fixed31_32 rati
uint32_t spl_get_v_bf3_mode(struct spl_fixed31_32 ratio)
{
uint32_t value;
- unsigned int num_entries = sizeof(easf_v_bf3_mode_lookup) /
- sizeof(struct scale_ratio_to_reg_value_lookup);
+ unsigned int num_entries = ARRAY_SIZE(easf_v_bf3_mode_lookup);
value = spl_easf_get_scale_ratio_to_reg_value(ratio,
easf_v_bf3_mode_lookup, num_entries);
return value;
@@ -2418,8 +2417,7 @@ uint32_t spl_get_v_bf3_mode(struct spl_fixed31_32 ratio)
uint32_t spl_get_h_bf3_mode(struct spl_fixed31_32 ratio)
{
uint32_t value;
- unsigned int num_entries = sizeof(easf_h_bf3_mode_lookup) /
- sizeof(struct scale_ratio_to_reg_value_lookup);
+ unsigned int num_entries = ARRAY_SIZE(easf_h_bf3_mode_lookup);
value = spl_easf_get_scale_ratio_to_reg_value(ratio,
easf_h_bf3_mode_lookup, num_entries);
return value;
@@ -2430,13 +2428,11 @@ uint32_t spl_get_reducer_gain6(int taps, struct spl_fixed31_32 ratio)
unsigned int num_entries;
if (taps == 4) {
- num_entries = sizeof(easf_reducer_gain6_4tap_lookup) /
- sizeof(struct scale_ratio_to_reg_value_lookup);
+ num_entries = ARRAY_SIZE(easf_reducer_gain6_4tap_lookup);
value = spl_easf_get_scale_ratio_to_reg_value(ratio,
easf_reducer_gain6_4tap_lookup, num_entries);
} else if (taps == 6) {
- num_entries = sizeof(easf_reducer_gain6_6tap_lookup) /
- sizeof(struct scale_ratio_to_reg_value_lookup);
+ num_entries = ARRAY_SIZE(easf_reducer_gain6_6tap_lookup);
value = spl_easf_get_scale_ratio_to_reg_value(ratio,
easf_reducer_gain6_6tap_lookup, num_entries);
} else
@@ -2449,13 +2445,11 @@ uint32_t spl_get_reducer_gain4(int taps, struct spl_fixed31_32 ratio)
unsigned int num_entries;
if (taps == 4) {
- num_entries = sizeof(easf_reducer_gain4_4tap_lookup) /
- sizeof(struct scale_ratio_to_reg_value_lookup);
+ num_entries = ARRAY_SIZE(easf_reducer_gain4_4tap_lookup);
value = spl_easf_get_scale_ratio_to_reg_value(ratio,
easf_reducer_gain4_4tap_lookup, num_entries);
} else if (taps == 6) {
- num_entries = sizeof(easf_reducer_gain4_6tap_lookup) /
- sizeof(struct scale_ratio_to_reg_value_lookup);
+ num_entries = ARRAY_SIZE(easf_reducer_gain4_6tap_lookup);
value = spl_easf_get_scale_ratio_to_reg_value(ratio,
easf_reducer_gain4_6tap_lookup, num_entries);
} else
@@ -2468,13 +2462,11 @@ uint32_t spl_get_gainRing6(int taps, struct spl_fixed31_32 ratio)
unsigned int num_entries;
if (taps == 4) {
- num_entries = sizeof(easf_gain_ring6_4tap_lookup) /
- sizeof(struct scale_ratio_to_reg_value_lookup);
+ num_entries = ARRAY_SIZE(easf_gain_ring6_4tap_lookup);
value = spl_easf_get_scale_ratio_to_reg_value(ratio,
easf_gain_ring6_4tap_lookup, num_entries);
} else if (taps == 6) {
- num_entries = sizeof(easf_gain_ring6_6tap_lookup) /
- sizeof(struct scale_ratio_to_reg_value_lookup);
+ num_entries = ARRAY_SIZE(easf_gain_ring6_6tap_lookup);
value = spl_easf_get_scale_ratio_to_reg_value(ratio,
easf_gain_ring6_6tap_lookup, num_entries);
} else
@@ -2487,13 +2479,11 @@ uint32_t spl_get_gainRing4(int taps, struct spl_fixed31_32 ratio)
unsigned int num_entries;
if (taps == 4) {
- num_entries = sizeof(easf_gain_ring4_4tap_lookup) /
- sizeof(struct scale_ratio_to_reg_value_lookup);
+ num_entries = ARRAY_SIZE(easf_gain_ring4_4tap_lookup);
value = spl_easf_get_scale_ratio_to_reg_value(ratio,
easf_gain_ring4_4tap_lookup, num_entries);
} else if (taps == 6) {
- num_entries = sizeof(easf_gain_ring4_6tap_lookup) /
- sizeof(struct scale_ratio_to_reg_value_lookup);
+ num_entries = ARRAY_SIZE(easf_gain_ring4_6tap_lookup);
value = spl_easf_get_scale_ratio_to_reg_value(ratio,
easf_gain_ring4_6tap_lookup, num_entries);
} else
@@ -2506,8 +2496,7 @@ uint32_t spl_get_3tap_dntilt_uptilt_offset(int taps, struct spl_fixed31_32 ratio
unsigned int num_entries;
if (taps == 3) {
- num_entries = sizeof(easf_3tap_dntilt_uptilt_offset_lookup) /
- sizeof(struct scale_ratio_to_reg_value_lookup);
+ num_entries = ARRAY_SIZE(easf_3tap_dntilt_uptilt_offset_lookup);
value = spl_easf_get_scale_ratio_to_reg_value(ratio,
easf_3tap_dntilt_uptilt_offset_lookup, num_entries);
} else
@@ -2520,8 +2509,7 @@ uint32_t spl_get_3tap_uptilt_maxval(int taps, struct spl_fixed31_32 ratio)
unsigned int num_entries;
if (taps == 3) {
- num_entries = sizeof(easf_3tap_uptilt_maxval_lookup) /
- sizeof(struct scale_ratio_to_reg_value_lookup);
+ num_entries = ARRAY_SIZE(easf_3tap_uptilt_maxval_lookup);
value = spl_easf_get_scale_ratio_to_reg_value(ratio,
easf_3tap_uptilt_maxval_lookup, num_entries);
} else
@@ -2534,8 +2522,7 @@ uint32_t spl_get_3tap_dntilt_slope(int taps, struct spl_fixed31_32 ratio)
unsigned int num_entries;
if (taps == 3) {
- num_entries = sizeof(easf_3tap_dntilt_slope_lookup) /
- sizeof(struct scale_ratio_to_reg_value_lookup);
+ num_entries = ARRAY_SIZE(easf_3tap_dntilt_slope_lookup);
value = spl_easf_get_scale_ratio_to_reg_value(ratio,
easf_3tap_dntilt_slope_lookup, num_entries);
} else
@@ -2548,8 +2535,7 @@ uint32_t spl_get_3tap_uptilt1_slope(int taps, struct spl_fixed31_32 ratio)
unsigned int num_entries;
if (taps == 3) {
- num_entries = sizeof(easf_3tap_uptilt1_slope_lookup) /
- sizeof(struct scale_ratio_to_reg_value_lookup);
+ num_entries = ARRAY_SIZE(easf_3tap_uptilt1_slope_lookup);
value = spl_easf_get_scale_ratio_to_reg_value(ratio,
easf_3tap_uptilt1_slope_lookup, num_entries);
} else
@@ -2562,8 +2548,7 @@ uint32_t spl_get_3tap_uptilt2_slope(int taps, struct spl_fixed31_32 ratio)
unsigned int num_entries;
if (taps == 3) {
- num_entries = sizeof(easf_3tap_uptilt2_slope_lookup) /
- sizeof(struct scale_ratio_to_reg_value_lookup);
+ num_entries = ARRAY_SIZE(easf_3tap_uptilt2_slope_lookup);
value = spl_easf_get_scale_ratio_to_reg_value(ratio,
easf_3tap_uptilt2_slope_lookup, num_entries);
} else
@@ -2576,8 +2561,7 @@ uint32_t spl_get_3tap_uptilt2_offset(int taps, struct spl_fixed31_32 ratio)
unsigned int num_entries;
if (taps == 3) {
- num_entries = sizeof(easf_3tap_uptilt2_offset_lookup) /
- sizeof(struct scale_ratio_to_reg_value_lookup);
+ num_entries = ARRAY_SIZE(easf_3tap_uptilt2_offset_lookup);
value = spl_easf_get_scale_ratio_to_reg_value(ratio,
easf_3tap_uptilt2_offset_lookup, num_entries);
} else
--
2.25.1
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