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* [PATCH] drm/i915: Don't request a bug report for unsafe module parameters
@ 2018-05-06 18:31 Chris Wilson
  2018-05-06 18:55 ` ✓ Fi.CI.BAT: success for " Patchwork
                   ` (4 more replies)
  0 siblings, 5 replies; 7+ messages in thread
From: Chris Wilson @ 2018-05-06 18:31 UTC (permalink / raw)
  To: intel-gfx; +Cc: Rodrigo Vivi

Unsafe module parameters are just that, unsafe. If the user is foolish
enough to try them and the kernel breaks, they get to keep both pieces.
Don't ask them to file a bug report if they broke it themselves.

References: https://bugs.freedesktop.org/show_bug.cgi?id=106423
Fixes: d15d7538c6d2 ("drm/i915: Tune down init error message due to failure injection")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
 drivers/gpu/drm/i915/i915_drv.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 9b782045ae17..9c449b8d8eab 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -101,7 +101,13 @@ __i915_printk(struct drm_i915_private *dev_priv, const char *level,
 		   __builtin_return_address(0), &vaf);
 
 	if (is_error && !shown_bug_once) {
-		dev_notice(kdev, "%s", FDO_BUG_MSG);
+		/*
+		 * Ask the user to file a bug report for the error, except
+		 * if they may have caused the bug by fiddling with unsafe
+		 * module parameters.
+		 */
+		if (!test_taint(TAINT_USER))
+			dev_notice(kdev, "%s", FDO_BUG_MSG);
 		shown_bug_once = true;
 	}
 
-- 
2.17.0

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^ permalink raw reply related	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2018-05-08 10:00 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-05-06 18:31 [PATCH] drm/i915: Don't request a bug report for unsafe module parameters Chris Wilson
2018-05-06 18:55 ` ✓ Fi.CI.BAT: success for " Patchwork
2018-05-06 19:41 ` ✓ Fi.CI.IGT: " Patchwork
2018-05-07  6:37 ` [PATCH] " Jani Nikula
2018-05-07  8:03 ` Joonas Lahtinen
2018-05-07 19:45 ` Rodrigo Vivi
2018-05-08 10:03   ` Jani Nikula

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