The double parentheses are not needed. Removing them fixes multiple
warnings like this when building with clang:

drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dce_calcs.c:617:42:
  error: equality comparison with extraneous parentheses
    [-Werror,-Wparentheses-equality]
  if ((data->graphics_micro_tile_mode == bw_def_rotated_micro_tiling)) {

Signed-off-by: Matthias Kaehlcke <m...@chromium.org>
---
 drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c 
b/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c
index 2e11fac2a63d..bb03a9c64d5a 100644
--- a/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c
+++ b/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c
@@ -623,7 +623,7 @@ static void calculate_bandwidth(
                                }
                                else {
                                        /*graphics portrait tiling mode*/
-                                       if ((data->graphics_micro_tile_mode == 
bw_def_rotated_micro_tiling)) {
+                                       if (data->graphics_micro_tile_mode == 
bw_def_rotated_micro_tiling) {
                                                data->orthogonal_rotation[i] = 
0;
                                        }
                                        else {
@@ -634,7 +634,7 @@ static void calculate_bandwidth(
                        else {
                                if ((i < 4)) {
                                        /*underlay landscape tiling mode is 
only supported*/
-                                       if ((data->underlay_micro_tile_mode == 
bw_def_display_micro_tiling)) {
+                                       if (data->underlay_micro_tile_mode == 
bw_def_display_micro_tiling) {
                                                data->orthogonal_rotation[i] = 
0;
                                        }
                                        else {
@@ -643,7 +643,7 @@ static void calculate_bandwidth(
                                }
                                else {
                                        /*graphics landscape tiling mode*/
-                                       if ((data->graphics_micro_tile_mode == 
bw_def_display_micro_tiling)) {
+                                       if (data->graphics_micro_tile_mode == 
bw_def_display_micro_tiling) {
                                                data->orthogonal_rotation[i] = 
0;
                                        }
                                        else {
@@ -947,14 +947,14 @@ static void calculate_bandwidth(
        }
        for (i = 0; i <= maximum_number_of_surfaces - 1; i++) {
                if (data->enable[i]) {
-                       if ((data->number_of_displays == 1 && 
data->number_of_underlay_surfaces == 0)) {
+                       if (data->number_of_displays == 1 && 
data->number_of_underlay_surfaces == 0) {
                                /*set maximum chunk limit if only one graphic 
pipe is enabled*/
                                data->outstanding_chunk_request_limit[i] = 
bw_int_to_fixed(127);
                        }
                        else {
                                data->outstanding_chunk_request_limit[i] = 
bw_ceil2(bw_div(data->adjusted_data_buffer_size[i], 
data->pipe_chunk_size_in_bytes[i]), bw_int_to_fixed(1));
                                /*clamp maximum chunk limit in the graphic 
display pipe*/
-                               if ((i >= 4)) {
+                               if (i >= 4) {
                                        
data->outstanding_chunk_request_limit[i] = bw_max2(bw_int_to_fixed(127), 
data->outstanding_chunk_request_limit[i]);
                                }
                        }
@@ -1337,7 +1337,7 @@ static void calculate_bandwidth(
        /*if stutter and dram clock state change are gated before cursor then 
the cursor latency hiding does not limit stutter or dram clock state change*/
        for (i = 0; i <= maximum_number_of_surfaces - 1; i++) {
                if (data->enable[i]) {
-                       if 
((dceip->graphics_lb_nodownscaling_multi_line_prefetching == 1)) {
+                       if 
(dceip->graphics_lb_nodownscaling_multi_line_prefetching == 1) {
                                data->maximum_latency_hiding[i] = 
bw_add(data->minimum_latency_hiding[i], bw_mul(bw_frc_to_fixed(8, 10), 
data->total_dmifmc_urgent_latency));
                        }
                        else {
@@ -1396,7 +1396,7 @@ static void calculate_bandwidth(
        }
        /*determine the number of displays with margin to switch in the 
v_active region*/
        for (k = 0; k <= maximum_number_of_surfaces - 1; k++) {
-               if ((data->enable[k] == 1 && 
data->display_pstate_change_enable[k] == 1)) {
+               if (data->enable[k] == 1 && 
data->display_pstate_change_enable[k] == 1) {
                        number_of_displays_enabled_with_margin = 
number_of_displays_enabled_with_margin + 1;
                }
        }
@@ -1442,7 +1442,7 @@ static void calculate_bandwidth(
                data->nbp_state_change_enable = bw_def_no;
        }
        /*dram clock change is possible only in vblank if all displays are 
aligned and have no margin*/
-       if ((number_of_aligned_displays_with_no_margin == 
number_of_displays_enabled)) {
+       if (number_of_aligned_displays_with_no_margin == 
number_of_displays_enabled) {
                nbp_state_change_enable_blank = bw_def_yes;
        }
        else {
@@ -1470,7 +1470,7 @@ static void calculate_bandwidth(
                }
        }
        /*compute minimum time to read one chunk from the dmif buffer*/
-       if ((number_of_displays_enabled > 2)) {
+       if (number_of_displays_enabled > 2) {
                data->chunk_request_delay = 0;
        }
        else {
@@ -1804,7 +1804,7 @@ static void calculate_bandwidth(
                                data->stutter_exit_watermark[i] = 
bw_add(bw_sub(vbios->stutter_self_refresh_exit_latency, 
data->total_dmifmc_urgent_latency), data->urgent_watermark[i]);
                                data->stutter_entry_watermark[i] = 
bw_add(bw_sub(bw_add(vbios->stutter_self_refresh_exit_latency, 
vbios->stutter_self_refresh_entry_latency), data->total_dmifmc_urgent_latency), 
data->urgent_watermark[i]);
                                /*unconditionally remove black out time from 
the nb p_state watermark*/
-                               if ((data->display_pstate_change_enable[i] == 
1)) {
+                               if (data->display_pstate_change_enable[i] == 1) 
{
                                        data->nbp_state_change_watermark[i] = 
bw_add(bw_add(vbios->nbp_state_change_latency, 
data->dmif_burst_time[data->y_clk_level][data->sclk_level]), 
bw_max2(data->line_source_pixels_transfer_time, 
data->dram_speed_change_line_source_transfer_time[i][data->y_clk_level][data->sclk_level]));
                                }
                                else {
@@ -1816,7 +1816,7 @@ static void calculate_bandwidth(
                                data->urgent_watermark[i] = 
bw_add(bw_add(bw_add(bw_add(bw_add(vbios->mcifwrmc_urgent_latency, 
data->mcifwr_burst_time[data->y_clk_level][data->sclk_level]), 
bw_max2(data->line_source_pixels_transfer_time, 
data->line_source_transfer_time[i][data->y_clk_level][data->sclk_level])), 
vbios->blackout_duration), data->chunk_request_time), 
data->cursor_request_time);
                                data->stutter_exit_watermark[i] = 
bw_int_to_fixed(0);
                                data->stutter_entry_watermark[i] = 
bw_int_to_fixed(0);
-                               if ((data->display_pstate_change_enable[i] == 
1)) {
+                               if (data->display_pstate_change_enable[i] == 1) 
{
                                        data->nbp_state_change_watermark[i] = 
bw_add(bw_add(vbios->nbp_state_change_latency, 
data->mcifwr_burst_time[data->y_clk_level][data->sclk_level]), 
bw_max2(data->line_source_pixels_transfer_time, 
data->dram_speed_change_line_source_transfer_time[i][data->y_clk_level][data->sclk_level]));
                                }
                                else {
-- 
2.16.0.rc1.238.g530d649a79-goog

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