[Intel-gfx] [PATCH v2 3/3] drm/i915: Don't taint when using fault injection

[Michał Winiarski]

From: Michał Winiarski <michal.winiarski at intel.com>

It is not really unexpected to hit wedge on init this way.
We're already downgrading error printk when running with fault injection,
let's use the same approach for CI tainting.

v2: Don't check fault inject in trace dump (Chris)

Signed-off-by: Michał Winiarski <michal.winiarski at intel.com>
Cc: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Michal Wajdeczko <michal.wajdeczko at intel.com>
Cc: Petri Latvala <petri.latvala at intel.com>
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_utils.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_utils.c b/drivers/gpu/drm/i915/i915_utils.c
index 01a3d3c941bf..4c305d838016 100644
--- a/drivers/gpu/drm/i915/i915_utils.c
+++ b/drivers/gpu/drm/i915/i915_utils.c
@@ -53,7 +53,10 @@ void add_taint_for_CI(struct drm_i915_private *i915, unsigned int taint)
 {
 	__i915_printk(i915, KERN_NOTICE, "CI tainted:%#x by %pS\n",
 		      taint, (void *)_RET_IP_);
-	__add_taint_for_CI(taint);
+
+	/* Failures that occur during fault injection testing are expected */
+	if (!i915_error_injected())
+		__add_taint_for_CI(taint);
 }
 
 #if IS_ENABLED(CONFIG_DRM_I915_DEBUG)
-- 
2.27.0