Quoting Michał Winiarski (2020-07-06 11:49:53)
> We can add taint from multiple places, printing the caller allows us to
> have a better overview of what exactly caused us to do the tainting.
>
> Suggested-by: Michal Wajdeczko <michal.wajdeczko@xxxxxxxxx>
> Signed-off-by: Michał Winiarski <michal.winiarski@xxxxxxxxx>
> Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> Cc: Michal Wajdeczko <michal.wajdeczko@xxxxxxxxx>
> Cc: Petri Latvala <petri.latvala@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/i915_utils.h | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/i915/i915_utils.h b/drivers/gpu/drm/i915/i915_utils.h
> index 03a73d2bd50d..1ed5c47eae8f 100644
> --- a/drivers/gpu/drm/i915/i915_utils.h
> +++ b/drivers/gpu/drm/i915/i915_utils.h
> @@ -444,6 +444,7 @@ static inline void add_taint_for_CI(unsigned int taint)
> * CI checks the taint state after every test and will reboot
> * the machine if the kernel is tainted.
> */
> + pr_info("CI taint: %ps\n", __builtin_return_address(0));
pr_note("CI tainted:%x by %ps\n", taint, __builtin_return_address(0));
Though if we are adding a message here, we probably should pass in the
i915 so we can declare which device caused the taint.
-Chris
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