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SubjectRe: [ANNOUNCE] 4.0.4-rt1
On Tue, 26 May 2015 11:19:24 -0400
Steven Rostedt <rostedt@goodmis.org> wrote:

> On Tue, 26 May 2015 08:48:02 -0500
> Clark Williams <williams@redhat.com> wrote:
>
>
> > Change the WARN_ON to WARN_ON_NORT
>
> Do we have a WARN_ON_NORT? I see a WARN_ON_NONRT, but not a
> WARN_ON_NORT. Does this compile?
>
> -- Steve

Sigh. Of course not. Reupdated patch (and yes this one compiles):

From: Clark Williams <williams@redhat.com>
Date: Thu, 21 May 2015 12:51:53 -0500
Subject: [PATCH] [rt] i915: bogus warning from i915 when running on PREEMPT_RT

The i915 driver has a 'WARN_ON(!in_interrupt())' in the display
handler, which whines constanly on the RT kernel (since the interrupt
is actually handled in a threaded handler and not actual interrupt
context).

Change the WARN_ON to WARN_ON_NORT

Signed-off-by: Clark Williams <williams@redhat.com>
---
drivers/gpu/drm/i915/intel_display.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index f75173c20f47..30b1d16caa0d 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -9745,7 +9745,7 @@ void intel_check_page_flip(struct drm_device *dev, int pipe)
struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);

- WARN_ON(!in_interrupt());
+ WARN_ON_NONRT(!in_interrupt());

if (crtc == NULL)
return;
--
2.1.0


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