[PATCH 13/40] drm/amd/display/dc/calcs/dce_calcs: Move some large variables from the stack to the heap

[Lee Jones]

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dce_calcs.c: In function 
‘calculate_bandwidth’:
 drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dce_calcs.c:2016:1: warning: 
the frame size of 1216 bytes is larger than 1024 bytes [-Wframe-larger-than=]

Cc: Harry Wentland <harry.wentl...@amd.com>
Cc: Leo Li <sunpeng...@amd.com>
Cc: Alex Deucher <alexander.deuc...@amd.com>
Cc: "Christian König" <christian.koe...@amd.com>
Cc: David Airlie <airl...@linux.ie>
Cc: Daniel Vetter <dan...@ffwll.ch>
Cc: Colin Ian King <colin.k...@canonical.com>
Cc: amd-...@lists.freedesktop.org
Cc: dri-de...@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jo...@linaro.org>
---
 .../gpu/drm/amd/display/dc/calcs/dce_calcs.c  | 21 +++++++++++++++----
 1 file changed, 17 insertions(+), 4 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 158d927c03e55..a0c69fae40ced 100644
--- a/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c
+++ b/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c
@@ -98,16 +98,16 @@ static void calculate_bandwidth(
        int32_t num_cursor_lines;
 
        int32_t i, j, k;
-       struct bw_fixed yclk[3];
-       struct bw_fixed sclk[8];
+       struct bw_fixed *yclk;
+       struct bw_fixed *sclk;
        bool d0_underlay_enable;
        bool d1_underlay_enable;
        bool fbc_enabled;
        bool lpt_enabled;
        enum bw_defines sclk_message;
        enum bw_defines yclk_message;
-       enum bw_defines tiling_mode[maximum_number_of_surfaces];
-       enum bw_defines surface_type[maximum_number_of_surfaces];
+       enum bw_defines *tiling_mode;
+       enum bw_defines *surface_type;
        enum bw_defines voltage;
        enum bw_defines pipe_check;
        enum bw_defines hsr_check;
@@ -122,6 +122,14 @@ static void calculate_bandwidth(
        int32_t number_of_displays_enabled_with_margin = 0;
        int32_t number_of_aligned_displays_with_no_margin = 0;
 
+       yclk = kzalloc(sizeof(*yclk) * 3, GFP_KERNEL);
+       sclk = kzalloc(sizeof(*sclk) * 8, GFP_KERNEL);
+
+       tiling_mode = kzalloc(sizeof(*tiling_mode) *
+                             maximum_number_of_surfaces, GFP_KERNEL);
+       surface_type = kzalloc(sizeof(*surface_type) *
+                              maximum_number_of_surfaces, GFP_KERNEL);
+
        yclk[low] = vbios->low_yclk;
        yclk[mid] = vbios->mid_yclk;
        yclk[high] = vbios->high_yclk;
@@ -2013,6 +2021,11 @@ static void calculate_bandwidth(
                        }
                }
        }
+
+       kfree(tiling_mode);
+       kfree(surface_type);
+       kfree(yclk);
+       kfree(sclk);
 }
 
 
/*******************************************************************************
-- 
2.25.1