linux-kernel - [PATCH 1/9] i915: remove wake_up on I915_RESET

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Message-ID: <20240819053605.11706-2-neilb@suse.de>
Date: Mon, 19 Aug 2024 15:20:35 +1000
From: NeilBrown <neilb@...e.de>
To: Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org
Subject: [PATCH 1/9] i915: remove wake_up on I915_RESET_MODESET.

Since Commit d59cf7bb73f3 ("drm/i915/display: Use dma_fence interfaces
instead of i915_sw_fence") no code has waited for this wake_up, so let's
remove the wake_up itself.

Signed-off-by: NeilBrown <neilb@...e.de>
---
 drivers/gpu/drm/i915/display/intel_display_reset.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display_reset.c b/drivers/gpu/drm/i915/display/intel_display_reset.c
index c2c347b22448..123571bf8af5 100644
--- a/drivers/gpu/drm/i915/display/intel_display_reset.c
+++ b/drivers/gpu/drm/i915/display/intel_display_reset.c
@@ -35,8 +35,6 @@ void intel_display_reset_prepare(struct drm_i915_private *dev_priv)
 
 	/* We have a modeset vs reset deadlock, defensively unbreak it. */
 	set_bit(I915_RESET_MODESET, &to_gt(dev_priv)->reset.flags);
-	smp_mb__after_atomic();
-	wake_up_bit(&to_gt(dev_priv)->reset.flags, I915_RESET_MODESET);
 
 	if (atomic_read(&dev_priv->gpu_error.pending_fb_pin)) {
 		drm_dbg_kms(&dev_priv->drm,
-- 
2.44.0