[PATCH 1/6] drm/msm: Update dev core dump to not print backwards

From: Ryan McCann
Date: Thu Jun 22 2023 - 19:50:42 EST


Device core dump add block method adds hardware blocks to dumping queue
with stack behavior which causes the hardware blocks to be printed in
reverse order. Change the addition to dumping queue data structure
from "list_add" to "list_add_tail" for FIFO queue behavior.

Fixes: 98659487b845 ("drm/msm: add support to take dpu snapshot")
Signed-off-by: Ryan McCann <quic_rmccann@xxxxxxxxxxx>
---
drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c b/drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c
index acfe1b31e079..add72bbc28b1 100644
--- a/drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c
+++ b/drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c
@@ -192,5 +192,5 @@ void msm_disp_snapshot_add_block(struct msm_disp_state *disp_state, u32 len,
new_blk->base_addr = base_addr;

msm_disp_state_dump_regs(&new_blk->state, new_blk->size, base_addr);
- list_add(&new_blk->node, &disp_state->blocks);
+ list_add_tail(&new_blk->node, &disp_state->blocks);
}

--
2.25.1