drm specific WARN* calls include device information in the backtrace, so we know what device the warnings originate from.
Covert all the calls of WARN* with device specific drm_WARN* variants in functions where drm_i915_private struct pointer is readily available.
The conversion was done automatically with below coccinelle semantic patch. checkpatch errors/warnings are fixed manually.
@rule1@ identifier func, T; @@ func(...) { ... struct drm_i915_private *T = ...; <+... ( -WARN( +drm_WARN(&T->drm, ...) | -WARN_ON( +drm_WARN_ON(&T->drm, ...) | -WARN_ONCE( +drm_WARN_ONCE(&T->drm, ...) | -WARN_ON_ONCE( +drm_WARN_ON_ONCE(&T->drm, ...) ) ...+> }
@rule2@ identifier func, T; @@ func(struct drm_i915_private *T,...) { <+... ( -WARN( +drm_WARN(&T->drm, ...) | -WARN_ON( +drm_WARN_ON(&T->drm, ...) | -WARN_ONCE( +drm_WARN_ONCE(&T->drm, ...) | -WARN_ON_ONCE( +drm_WARN_ON_ONCE(&T->drm, ...) ) ...+> }
Signed-off-by: Pankaj Bharadiya pankaj.laxminarayan.bharadiya@intel.com --- drivers/gpu/drm/i915/display/intel_hdcp.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c index 30e0a3aa9d57..229b4e329864 100644 --- a/drivers/gpu/drm/i915/display/intel_hdcp.c +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c @@ -872,7 +872,8 @@ static int intel_hdcp_check_link(struct intel_connector *connector) goto out; }
- if (WARN_ON(!intel_hdcp_in_use(dev_priv, cpu_transcoder, port))) { + if (drm_WARN_ON(&dev_priv->drm, + !intel_hdcp_in_use(dev_priv, cpu_transcoder, port))) { drm_err(&dev_priv->drm, "%s:%d HDCP link stopped encryption,%x\n", connector->base.name, connector->base.base.id, @@ -1561,8 +1562,9 @@ static int hdcp2_enable_encryption(struct intel_connector *connector) enum transcoder cpu_transcoder = hdcp->cpu_transcoder; int ret;
- WARN_ON(intel_de_read(dev_priv, HDCP2_STATUS(dev_priv, cpu_transcoder, port)) & - LINK_ENCRYPTION_STATUS); + drm_WARN_ON(&dev_priv->drm, + intel_de_read(dev_priv, HDCP2_STATUS(dev_priv, cpu_transcoder, port)) & + LINK_ENCRYPTION_STATUS); if (hdcp->shim->toggle_signalling) { ret = hdcp->shim->toggle_signalling(intel_dig_port, true); if (ret) { @@ -1599,8 +1601,8 @@ static int hdcp2_disable_encryption(struct intel_connector *connector) enum transcoder cpu_transcoder = hdcp->cpu_transcoder; int ret;
- WARN_ON(!(intel_de_read(dev_priv, HDCP2_STATUS(dev_priv, cpu_transcoder, port)) & - LINK_ENCRYPTION_STATUS)); + drm_WARN_ON(&dev_priv->drm, !(intel_de_read(dev_priv, HDCP2_STATUS(dev_priv, cpu_transcoder, port)) & + LINK_ENCRYPTION_STATUS));
intel_de_write(dev_priv, HDCP2_CTL(dev_priv, cpu_transcoder, port), intel_de_read(dev_priv, HDCP2_CTL(dev_priv, cpu_transcoder, port)) & ~CTL_LINK_ENCRYPTION_REQ); @@ -1720,7 +1722,8 @@ static int intel_hdcp2_check_link(struct intel_connector *connector) goto out; }
- if (WARN_ON(!intel_hdcp2_in_use(dev_priv, cpu_transcoder, port))) { + if (drm_WARN_ON(&dev_priv->drm, + !intel_hdcp2_in_use(dev_priv, cpu_transcoder, port))) { drm_err(&dev_priv->drm, "HDCP2.2 link stopped the encryption, %x\n", intel_de_read(dev_priv, HDCP2_STATUS(dev_priv, cpu_transcoder, port))); @@ -1916,7 +1919,7 @@ void intel_hdcp_component_init(struct drm_i915_private *dev_priv) return;
mutex_lock(&dev_priv->hdcp_comp_mutex); - WARN_ON(dev_priv->hdcp_comp_added); + drm_WARN_ON(&dev_priv->drm, dev_priv->hdcp_comp_added);
dev_priv->hdcp_comp_added = true; mutex_unlock(&dev_priv->hdcp_comp_mutex); @@ -1990,7 +1993,8 @@ int intel_hdcp_enable(struct intel_connector *connector, return -ENOENT;
mutex_lock(&hdcp->mutex); - WARN_ON(hdcp->value == DRM_MODE_CONTENT_PROTECTION_ENABLED); + drm_WARN_ON(&dev_priv->drm, + hdcp->value == DRM_MODE_CONTENT_PROTECTION_ENABLED); hdcp->content_type = content_type;
if (INTEL_GEN(dev_priv) >= 12) {