[RFC PATCH 2/4] fbdev: Move framebuffer_{alloc,release}() functions to fbmem.c

[Javier Martinez Canillas]

The framebuffer_alloc() and framebuffer_release() functions are much more
related with the functions in drivers/fbdev/core/fbmem.c than the ones in
drivers/fbdev/core/fbsysfs.c, that are only to manage sysfs attributes.

Signed-off-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
---

 drivers/video/fbdev/core/fbmem.c   | 65 +++++++++++++++++++++++++++
 drivers/video/fbdev/core/fbsysfs.c | 71 ------------------------------
 2 files changed, 65 insertions(+), 71 deletions(-)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index d886582c0a4..2b22e46b815 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -57,6 +57,71 @@ bool fb_center_logo __read_mostly;
 
 int fb_logo_count __read_mostly = -1;
 
+/**
+ * framebuffer_alloc - creates a new frame buffer info structure
+ *
+ * @size: size of driver private data, can be zero
+ * @dev: pointer to the device for this fb, this can be NULL
+ *
+ * Creates a new frame buffer info structure. Also reserves @size bytes
+ * for driver private data (info->par). info->par (if any) will be
+ * aligned to sizeof(long).
+ *
+ * Returns the new structure, or NULL if an error occurred.
+ *
+ */
+struct fb_info *framebuffer_alloc(size_t size, struct device *dev)
+{
+#define BYTES_PER_LONG (BITS_PER_LONG/8)
+#define PADDING (BYTES_PER_LONG - (sizeof(struct fb_info) % BYTES_PER_LONG))
+	int fb_info_size = sizeof(struct fb_info);
+	struct fb_info *info;
+	char *p;
+
+	if (size)
+		fb_info_size += PADDING;
+
+	p = kzalloc(fb_info_size + size, GFP_KERNEL);
+
+	if (!p)
+		return NULL;
+
+	info = (struct fb_info *) p;
+
+	if (size)
+		info->par = p + fb_info_size;
+
+	info->device = dev;
+	info->fbcon_rotate_hint = -1;
+
+#if IS_ENABLED(CONFIG_FB_BACKLIGHT)
+	mutex_init(&info->bl_curve_mutex);
+#endif
+
+	return info;
+#undef PADDING
+#undef BYTES_PER_LONG
+}
+EXPORT_SYMBOL(framebuffer_alloc);
+
+/**
+ * framebuffer_release - marks the structure available for freeing
+ *
+ * @info: frame buffer info structure
+ *
+ * Drop the reference count of the device embedded in the
+ * framebuffer info structure.
+ *
+ */
+void framebuffer_release(struct fb_info *info)
+{
+	if (!info)
+		return;
+	kfree(info->apertures);
+	kfree(info);
+}
+EXPORT_SYMBOL(framebuffer_release);
+
 static struct fb_info *get_fb_info(unsigned int idx)
 {
 	struct fb_info *fb_info;
diff --git a/drivers/video/fbdev/core/fbsysfs.c b/drivers/video/fbdev/core/fbsysfs.c
index a040d6bd6c3..2c1e3f0effe 100644
--- a/drivers/video/fbdev/core/fbsysfs.c
+++ b/drivers/video/fbdev/core/fbsysfs.c
@@ -5,12 +5,6 @@
  * Copyright (c) 2004 James Simmons <jsimmons@xxxxxxxxxxxxx>
  */
 
-/*
- * Note:  currently there's only stubs for framebuffer_alloc and
- * framebuffer_release here.  The reson for that is that until all drivers
- * are converted to use it a sysfsification will open OOPSable races.
- */
-
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/fb.h>
@@ -20,71 +14,6 @@
 
 #define FB_SYSFS_FLAG_ATTR 1
 
-/**
- * framebuffer_alloc - creates a new frame buffer info structure
- *
- * @size: size of driver private data, can be zero
- * @dev: pointer to the device for this fb, this can be NULL
- *
- * Creates a new frame buffer info structure. Also reserves @size bytes
- * for driver private data (info->par). info->par (if any) will be
- * aligned to sizeof(long).
- *
- * Returns the new structure, or NULL if an error occurred.
- *
- */
-struct fb_info *framebuffer_alloc(size_t size, struct device *dev)
-{
-#define BYTES_PER_LONG (BITS_PER_LONG/8)
-#define PADDING (BYTES_PER_LONG - (sizeof(struct fb_info) % BYTES_PER_LONG))
-	int fb_info_size = sizeof(struct fb_info);
-	struct fb_info *info;
-	char *p;
-
-	if (size)
-		fb_info_size += PADDING;
-
-	p = kzalloc(fb_info_size + size, GFP_KERNEL);
-
-	if (!p)
-		return NULL;
-
-	info = (struct fb_info *) p;
-
-	if (size)
-		info->par = p + fb_info_size;
-
-	info->device = dev;
-	info->fbcon_rotate_hint = -1;
-
-#if IS_ENABLED(CONFIG_FB_BACKLIGHT)
-	mutex_init(&info->bl_curve_mutex);
-#endif
-
-	return info;
-#undef PADDING
-#undef BYTES_PER_LONG
-}
-EXPORT_SYMBOL(framebuffer_alloc);
-
-/**
- * framebuffer_release - marks the structure available for freeing
- *
- * @info: frame buffer info structure
- *
- * Drop the reference count of the device embedded in the
- * framebuffer info structure.
- *
- */
-void framebuffer_release(struct fb_info *info)
-{
-	if (!info)
-		return;
-	kfree(info->apertures);
-	kfree(info);
-}
-EXPORT_SYMBOL(framebuffer_release);
-
 static int activate(struct fb_info *fb_info, struct fb_var_screeninfo *var)
 {
 	int err;
-- 
2.31.1