linux-kernel - [PATCH 2/4] drm/radeon: Remove unused radeon_doorbell

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Message-ID: <20250418002117.130612-3-linux@treblig.org>
Date: Fri, 18 Apr 2025 01:21:15 +0100
From: linux@...blig.org
To: alexander.deucher@....com,
	harry.wentland@....com,
	sunpeng.li@....com,
	siqueira@...lia.com,
	christian.koenig@....com
Cc: airlied@...il.com,
	simona@...ll.ch,
	amd-gfx@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	"Dr. David Alan Gilbert" <linux@...blig.org>
Subject: [PATCH 2/4] drm/radeon: Remove unused radeon_doorbell_free

From: "Dr. David Alan Gilbert" <linux@...blig.org>

radeon_doorbell_free() was added in 2013 by
commit 75efdee11b5d ("drm/radeon: implement simple doorbell page
allocator")
but never used.

Remove it.

Signed-off-by: Dr. David Alan Gilbert <linux@...blig.org>
---
 drivers/gpu/drm/radeon/radeon.h        |  1 -
 drivers/gpu/drm/radeon/radeon_device.c | 14 --------------
 2 files changed, 15 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 8605c074d9f7..58111fdf520d 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -686,7 +686,6 @@ struct radeon_doorbell {
 };
 
 int radeon_doorbell_get(struct radeon_device *rdev, u32 *page);
-void radeon_doorbell_free(struct radeon_device *rdev, u32 doorbell);
 
 /*
  * IRQS.
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index bbd39348a7ab..4127ffb4bb6f 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -392,20 +392,6 @@ int radeon_doorbell_get(struct radeon_device *rdev, u32 *doorbell)
 	}
 }
 
-/**
- * radeon_doorbell_free - Free a doorbell entry
- *
- * @rdev: radeon_device pointer
- * @doorbell: doorbell index
- *
- * Free a doorbell allocated for use by the driver (all asics)
- */
-void radeon_doorbell_free(struct radeon_device *rdev, u32 doorbell)
-{
-	if (doorbell < rdev->doorbell.num_doorbells)
-		__clear_bit(doorbell, rdev->doorbell.used);
-}
-
 /*
  * radeon_wb_*()
  * Writeback is the method by which the GPU updates special pages
-- 
2.49.0