linux-kernel - [PATCH] drm/radeon/radeon_device: remove unused function

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Date:   Thu, 15 Sep 2016 22:13:51 +0800
From:   Baoyou Xie <baoyou.xie@...aro.org>
To:     alexander.deucher@....com, christian.koenig@....com,
        airlied@...ux.ie
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        arnd@...db.de, baoyou.xie@...aro.org, xie.baoyou@....com.cn
Subject: [PATCH] drm/radeon/radeon_device: remove unused function

We get 2 warnings when building kernel with W=1:
drivers/gpu/drm/radeon/radeon_device.c:1961:5: warning: no previous prototype for 'radeon_debugfs_init' [-Wmissing-prototypes]
drivers/gpu/drm/radeon/radeon_device.c:1966:6: warning: no previous prototype for 'radeon_debugfs_cleanup' [-Wmissing-prototypes]

In fact, these functions are dummy, but can be removed,
so this patch removes them.

Signed-off-by: Baoyou Xie <baoyou.xie@...aro.org>
---
 drivers/gpu/drm/radeon/radeon_device.c | 11 -----------
 drivers/gpu/drm/radeon/radeon_drv.c    |  9 ---------
 2 files changed, 20 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index a00dd2f..63447f1 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -1956,14 +1956,3 @@ static void radeon_debugfs_remove_files(struct radeon_device *rdev)
 	}
 #endif
 }
-
-#if defined(CONFIG_DEBUG_FS)
-int radeon_debugfs_init(struct drm_minor *minor)
-{
-	return 0;
-}
-
-void radeon_debugfs_cleanup(struct drm_minor *minor)
-{
-}
-#endif
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index 07e4493..86bab2e 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -156,11 +156,6 @@ void radeon_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
 extern long radeon_kms_compat_ioctl(struct file *filp, unsigned int cmd,
 				    unsigned long arg);
 
-#if defined(CONFIG_DEBUG_FS)
-int radeon_debugfs_init(struct drm_minor *minor);
-void radeon_debugfs_cleanup(struct drm_minor *minor);
-#endif
-
 /* atpx handler */
 #if defined(CONFIG_VGA_SWITCHEROO)
 void radeon_register_atpx_handler(void);
@@ -531,10 +526,6 @@ static struct drm_driver kms_driver = {
 	.disable_vblank = radeon_disable_vblank_kms,
 	.get_vblank_timestamp = radeon_get_vblank_timestamp_kms,
 	.get_scanout_position = radeon_get_crtc_scanoutpos,
-#if defined(CONFIG_DEBUG_FS)
-	.debugfs_init = radeon_debugfs_init,
-	.debugfs_cleanup = radeon_debugfs_cleanup,
-#endif
 	.irq_preinstall = radeon_driver_irq_preinstall_kms,
 	.irq_postinstall = radeon_driver_irq_postinstall_kms,
 	.irq_uninstall = radeon_driver_irq_uninstall_kms,
-- 
2.7.4