linux-kernel - [PATCH] drm: kill more unused DRM macros

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Date:	Mon, 19 Oct 2009 01:37:08 -0400
From:	Andres Salomon <dilinger@...labora.co.uk>
To:	linux-kernel@...r.kernel.org
Cc:	David Airlie <airlied@...ux.ie>, dri-devel@...ts.sourceforge.net,
	akpm@...ux-foundation.org
Subject: [PATCH] drm: kill more unused DRM macros


There are a few more macros in drmP.h that are unused; DRM_GET_PRIV_SAREA,
DRM_ARRAY_SIZE, and DRM_WAITCOUNT can go away completely.

Unfortunately, DRM_COPY is still used in one place, but we can at least
move it to where it's used.  It's an awful looking macro..

Signed-off-by: Andres Salomon <dilinger@...labora.co.uk>
---
 drivers/gpu/drm/drm_drv.c |   12 ++++++++++++
 include/drm/drmP.h        |   25 -------------------------
 2 files changed, 12 insertions(+), 25 deletions(-)

diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index a75ca63..43297ca 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -366,6 +366,18 @@ module_init(drm_core_init);
 module_exit(drm_core_exit);
 
 /**
+ * Copy and IOCTL return string to user space
+ */
+#define DRM_COPY(name, value)                                         \
+	len = strlen(value);                                          \
+	if (len > name##_len) len = name##_len;                       \
+	name##_len = strlen(value);                                   \
+	if (len && name) {                                            \
+		if (copy_to_user(name, value, len))                   \
+			return -EFAULT;                               \
+	}
+
+/**
  * Get version information
  *
  * \param inode device inode.
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index af30da3..b2112f4 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -251,23 +251,10 @@ extern void drm_ut_debug_printk(unsigned int request_level,
 /** \name Internal types and structures */
 /*@{*/
 
-#define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
-
 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
-#define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
 
 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
-/**
- * Get the private SAREA mapping.
- *
- * \param _dev DRM device.
- * \param _ctx context number.
- * \param _map output mapping.
- */
-#define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do {	\
-	(_map) = (_dev)->context_sareas[_ctx];		\
-} while(0)
 
 /**
  * Test that the hardware lock is held by the caller, returning otherwise.
@@ -287,18 +274,6 @@ do {										\
 } while (0)
 
 /**
- * Copy and IOCTL return string to user space
- */
-#define DRM_COPY( name, value )						\
-	len = strlen( value );						\
-	if ( len > name##_len ) len = name##_len;			\
-	name##_len = strlen( value );					\
-	if ( len && name ) {						\
-		if ( copy_to_user( name, value, len ) )			\
-			return -EFAULT;					\
-	}
-
-/**
  * Ioctl function type.
  *
  * \param inode device inode.
-- 
1.5.6.5

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