Re: [PATCH] drm/amd/display: return status of dmub_srv_get_fw_boot_status

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On 4/24/23 10:02 AM, Hamza Mahfooz wrote:

On 4/20/23 09:59, Tom Rix wrote:
gcc with W=1 reports
drivers/gpu/drm/amd/amdgpu/../display/dc/dc_dmub_srv.c:
   In function ‘dc_dmub_srv_optimized_init_done’:
drivers/gpu/drm/amd/amdgpu/../display/dc/dc_dmub_srv.c:184:26:
   error: variable ‘dmub’ set but not used [-Werror=unused-but-set-variable]
   184 |         struct dmub_srv *dmub;
       |                          ^~~~

The return status is never set.
It looks like a call to dmub_srv_get_fw_boot_status is missing.

Fixes: 499e4b1c722e ("drm/amd/display: add mechanism to skip DCN init")

What tree is this based on? I am unable to find that exact commit on
amd-staging-drm-next.

linux-next

Tom



Signed-off-by: Tom Rix <trix@xxxxxxxxxx>
---
  drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | 13 +++++++++++--
  1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
index d15ec32243e2..36d936ab4300 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
+++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
@@ -182,14 +182,23 @@ bool dc_dmub_srv_cmd_run_list(struct dc_dmub_srv *dc_dmub_srv, unsigned int coun
  bool dc_dmub_srv_optimized_init_done(struct dc_dmub_srv *dc_dmub_srv)
  {
      struct dmub_srv *dmub;
-    union dmub_fw_boot_status status;
+    struct dc_context *dc_ctx;
+    union dmub_fw_boot_status boot_status;
+    enum dmub_status status;
        if (!dc_dmub_srv || !dc_dmub_srv->dmub)
          return false;
        dmub = dc_dmub_srv->dmub;
+    dc_ctx = dc_dmub_srv->ctx;
+
+    status = dmub_srv_get_fw_boot_status(dmub, &boot_status);
+    if (status != DMUB_STATUS_OK) {
+        DC_ERROR("Error querying DMUB boot status: error=%d\n", status);
+        return false;
+    }
  -    return status.bits.optimized_init_done;
+    return boot_status.bits.optimized_init_done;
  }
    bool dc_dmub_srv_notify_stream_mask(struct dc_dmub_srv *dc_dmub_srv,




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