Reviewed-by: Guchun Chen <guchun.c...@amd.com>

Regards,
Guchun

-----Original Message-----
From: Song, Asher <asher.s...@amd.com> 
Sent: Tuesday, September 27, 2022 11:38 AM
To: Chen, Guchun <guchun.c...@amd.com>; Cui, Flora <flora....@amd.com>; Shi, 
Leslie <yuliang....@amd.com>; Ma, Jun <jun....@amd.com>; 
amd-gfx@lists.freedesktop.org
Cc: Song, Asher <asher.s...@amd.com>
Subject: [PATCH] drm/amdgpu: fix a compiling error in old kernels

This patch is used to fix following compiling error that occurs in some old 
kernels.

error: ‘for’ loop initial declarations are only allowed in C99 mode
  for (int i = 0; i < dc->res_pool->res_cap->num_dsc; i++) {

Signed-off-by: Asher Song <asher.s...@amd.com>
---
 drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c 
b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c
index 772ad200c5da..c91fcde7a16c 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c
@@ -1405,8 +1405,9 @@ void dcn32_update_dsc_pg(struct dc *dc,
                bool safe_to_disable)
 {
        struct dce_hwseq *hws = dc->hwseq;
+       int i;
 
-       for (int i = 0; i < dc->res_pool->res_cap->num_dsc; i++) {
+       for (i = 0; i < dc->res_pool->res_cap->num_dsc; i++) {
                struct display_stream_compressor *dsc = dc->res_pool->dscs[i];
                bool is_dsc_ungated = hws->funcs.dsc_pg_status(hws, dsc->inst);
 
--
2.25.1

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