drm/i915/display/tc: Prefer drm_WARN_ON over WARN_ON

struct drm_device specific drm_WARN* macros include device information
in the backtrace, so we know what device the warnings originate from.

Prefer drm_WARN_ON over WARN_ON.

Conversion is done with below sementic patch:

@@
identifier func, T;
@@
func(...) {
...
struct drm_i915_private *T = ...;
<+...
-WARN_ON(
+drm_WARN_ON(&T->drm,
...)
...+>
}

@@
identifier func, T;
@@
func(struct intel_digital_port *T,...) {
+struct drm_i915_private *i915 = to_i915(T->base.base.dev);
<+...
-WARN_ON(
+drm_WARN_ON(&i915->drm,
...)
...+>

}

changes since v1:
- Add i915 local variable and use it in drm_WARN_ON (Jani)

Signed-off-by: Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200504181600.18503-5-pankaj.laxminarayan.bharadiya@intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c
index b161c15baf8694a7e4b2f9238240a53a71cbb6b0..5b5dc86a5737584fabec9c3312a21e7bea020200 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_tc.c
+++ b/drivers/gpu/drm/i915/display/intel_tc.c
@@ -360,12 +360,12 @@ static void icl_tc_phy_connect(struct intel_digital_port *dig_port,
        }
 
        if (!icl_tc_phy_set_safe_mode(dig_port, false) &&
-           !WARN_ON(dig_port->tc_legacy_port))
+           !drm_WARN_ON(&i915->drm, dig_port->tc_legacy_port))
                goto out_set_tbt_alt_mode;
 
        max_lanes = intel_tc_port_fia_max_lane_count(dig_port);
        if (dig_port->tc_legacy_port) {
-               WARN_ON(max_lanes != 4);
+               drm_WARN_ON(&i915->drm, max_lanes != 4);
                dig_port->tc_mode = TC_PORT_LEGACY;
 
                return;
@@ -445,18 +445,20 @@ static bool icl_tc_phy_is_connected(struct intel_digital_port *dig_port)
 static enum tc_port_mode
 intel_tc_port_get_current_mode(struct intel_digital_port *dig_port)
 {
+       struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
        u32 live_status_mask = tc_port_live_status_mask(dig_port);
        bool in_safe_mode = icl_tc_phy_is_in_safe_mode(dig_port);
        enum tc_port_mode mode;
 
-       if (in_safe_mode || WARN_ON(!icl_tc_phy_status_complete(dig_port)))
+       if (in_safe_mode ||
+           drm_WARN_ON(&i915->drm, !icl_tc_phy_status_complete(dig_port)))
                return TC_PORT_TBT_ALT;
 
        mode = dig_port->tc_legacy_port ? TC_PORT_LEGACY : TC_PORT_DP_ALT;
        if (live_status_mask) {
                enum tc_port_mode live_mode = fls(live_status_mask) - 1;
 
-               if (!WARN_ON(live_mode == TC_PORT_TBT_ALT))
+               if (!drm_WARN_ON(&i915->drm, live_mode == TC_PORT_TBT_ALT))
                        mode = live_mode;
        }
 
@@ -505,7 +507,9 @@ static void
 intel_tc_port_link_init_refcount(struct intel_digital_port *dig_port,
                                 int refcount)
 {
-       WARN_ON(dig_port->tc_link_refcount);
+       struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+
+       drm_WARN_ON(&i915->drm, dig_port->tc_link_refcount);
        dig_port->tc_link_refcount = refcount;
 }