[PATCH v2 1/4] drm/i915: dump display parameters captured in error state, not current

[Jani Nikula]

intel_display_params_dump() prints the current display parameters, not
the ones captured during error capture. It's not likely the params get
changed in between, but make it pedantically correct anyway. Pass in the
parameters and driver name to intel_display_params_dump().

Reviewed-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/i915/display/intel_display_params.c | 8 +++++---
 drivers/gpu/drm/i915/display/intel_display_params.h | 5 ++---
 drivers/gpu/drm/i915/i915_debugfs.c                 | 2 +-
 drivers/gpu/drm/i915/i915_gpu_error.c               | 2 +-
 4 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display_params.c b/drivers/gpu/drm/i915/display/intel_display_params.c
index 1a45d300b6f0..024de8abcb1a 100644
--- a/drivers/gpu/drm/i915/display/intel_display_params.c
+++ b/drivers/gpu/drm/i915/display/intel_display_params.c
@@ -173,14 +173,16 @@ static void _param_print_charp(struct drm_printer *p, const char *driver_name,
 
 /**
  * intel_display_params_dump - dump intel display modparams
- * @display: display device
+ * @params: display params
+ * @driver_name: driver name to use for printing
  * @p: the &drm_printer
  *
  * Pretty printer for i915 modparams.
  */
-void intel_display_params_dump(struct intel_display *display, struct drm_printer *p)
+void intel_display_params_dump(const struct intel_display_params *params,
+			       const char *driver_name, struct drm_printer *p)
 {
-#define PRINT(T, x, ...) _param_print(p, display->drm->driver->name, #x, display->params.x);
+#define PRINT(T, x, ...) _param_print(p, driver_name, #x, params->x);
 	INTEL_DISPLAY_PARAMS_FOR_EACH(PRINT);
 #undef PRINT
 }
diff --git a/drivers/gpu/drm/i915/display/intel_display_params.h b/drivers/gpu/drm/i915/display/intel_display_params.h
index da8dc943234b..dcb6face936a 100644
--- a/drivers/gpu/drm/i915/display/intel_display_params.h
+++ b/drivers/gpu/drm/i915/display/intel_display_params.h
@@ -9,7 +9,6 @@
 #include <linux/types.h>
 
 struct drm_printer;
-struct intel_display;
 
 /*
  * Invoke param, a function-like macro, for each intel display param, with
@@ -56,8 +55,8 @@ struct intel_display_params {
 };
 #undef MEMBER
 
-void intel_display_params_dump(struct intel_display *display,
-			       struct drm_printer *p);
+void intel_display_params_dump(const struct intel_display_params *params,
+			       const char *driver_name, struct drm_printer *p);
 void intel_display_params_copy(struct intel_display_params *dest);
 void intel_display_params_free(struct intel_display_params *params);
 
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index f969f585d07b..246fece628d6 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -78,7 +78,7 @@ static int i915_capabilities(struct seq_file *m, void *data)
 
 	kernel_param_lock(THIS_MODULE);
 	i915_params_dump(&i915->params, &p);
-	intel_display_params_dump(display, &p);
+	intel_display_params_dump(&display->params, display->drm->driver->name, &p);
 	kernel_param_unlock(THIS_MODULE);
 
 	return 0;
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 6469b9bcf2ec..f23769ccf050 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -663,7 +663,7 @@ static void err_print_params(struct drm_i915_error_state_buf *m,
 	struct intel_display *display = &m->i915->display;
 
 	i915_params_dump(params, &p);
-	intel_display_params_dump(display, &p);
+	intel_display_params_dump(&display->params, display->drm->driver->name, &p);
 }
 
 static void err_print_pciid(struct drm_i915_error_state_buf *m,
-- 
2.39.2