[PATCH 03/13] drm/amd/display: Reduce stack size

[Alex Hung]

From: Rodrigo Siqueira <Rodrigo.Siqueira at amd.com>

Linux kernel enabled more compilation restrictions related to the stack
size, which caused compilation failures in our code. This commit reduces
the allocation size by allocating the required memory dynamically.

Reviewed-by: Harry Wentland <Harry.Wentland at amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr at amd.com>
Acked-by: Alex Hung <alex.hung at amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira at amd.com>
---
 drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index c3e141c19a77..ad757b59e00e 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -2056,7 +2056,7 @@ static int dcn10_align_pixel_clocks(struct dc *dc, int group_size,
 {
 	struct dc_context *dc_ctx = dc->ctx;
 	int i, master = -1, embedded = -1;
-	struct dc_crtc_timing hw_crtc_timing[MAX_PIPES] = {0};
+	struct dc_crtc_timing *hw_crtc_timing;
 	uint64_t phase[MAX_PIPES];
 	uint64_t modulo[MAX_PIPES];
 	unsigned int pclk;
@@ -2067,6 +2067,10 @@ static int dcn10_align_pixel_clocks(struct dc *dc, int group_size,
 	uint32_t dp_ref_clk_100hz =
 		dc->res_pool->dp_clock_source->ctx->dc->clk_mgr->dprefclk_khz*10;
 
+	hw_crtc_timing = kcalloc(MAX_PIPES, sizeof(*hw_crtc_timing), GFP_KERNEL);
+	if (!hw_crtc_timing)
+		return master;
+
 	if (dc->config.vblank_alignment_dto_params &&
 		dc->res_pool->dp_clock_source->funcs->override_dp_pix_clk) {
 		embedded_h_total =
@@ -2130,6 +2134,8 @@ static int dcn10_align_pixel_clocks(struct dc *dc, int group_size,
 		}
 
 	}
+
+	kfree(hw_crtc_timing);
 	return master;
 }
 
-- 
2.35.1