drm/imagination: Restrict init_fw_trace_mask module param to read only

Param used for setting FW trace mask at module load time. Other debugfs
entry exist to allow update at run time.

Signed-off-by: Brajesh Gupta <brajesh.gupta@imgtec.com>
Reviewed-by: Alessio Belle <alessio.belle@imgtec.com>
Link: https://patch.msgid.link/20260427-ftrace_fix-v3-2-e081530759a8@imgtec.com
Signed-off-by: Matt Coster <matt.coster@imgtec.com>

diff --git a/drivers/gpu/drm/imagination/pvr_fw_trace.c b/drivers/gpu/drm/imagination/pvr_fw_trace.c
index e154cb35f604dcd334fbcdd2b9cb7d98bc65fb05..458d9ab8193e3f9e2ef2ad685e6e5ca44fe0d53f 100644 (file)
--- a/drivers/gpu/drm/imagination/pvr_fw_trace.c
+++ b/drivers/gpu/drm/imagination/pvr_fw_trace.c
@@ -77,7 +77,7 @@ const struct kernel_param_ops pvr_fw_trace_init_mask_ops = {
 };
 
 param_check_hexint(init_fw_trace_mask, &pvr_fw_trace_init_mask);
-module_param_cb(init_fw_trace_mask, &pvr_fw_trace_init_mask_ops, &pvr_fw_trace_init_mask, 0600);
+module_param_cb(init_fw_trace_mask, &pvr_fw_trace_init_mask_ops, &pvr_fw_trace_init_mask, 0400);
 __MODULE_PARM_TYPE(init_fw_trace_mask, "hexint");
 MODULE_PARM_DESC(init_fw_trace_mask,
                 "Enable FW trace for the specified groups at device init time");