This optional callback was added in the commit 1f45f9dbb392 ("fb_defio:
add first_io callback") but it was never used by a driver. Let's remove
it since it's unlikely that will be used after a decade that was added.
Signed-off-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
Reviewed-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
---
(no changes since v1)
drivers/video/fbdev/core/fb_defio.c | 4 ----
include/linux/fb.h | 1 -
2 files changed, 5 deletions(-)
diff --git a/drivers/video/fbdev/core/fb_defio.c b/drivers/video/fbdev/core/fb_defio.c
index c730253ab85c..1b680742b7f3 100644
--- a/drivers/video/fbdev/core/fb_defio.c
+++ b/drivers/video/fbdev/core/fb_defio.c
@@ -157,10 +157,6 @@ static vm_fault_t fb_deferred_io_track_page(struct fb_info *info, unsigned long
/* protect against the workqueue changing the page list */
mutex_lock(&fbdefio->lock);
- /* first write in this cycle, notify the driver */
- if (fbdefio->first_io && list_empty(&fbdefio->pagereflist))
- fbdefio->first_io(info);
-
pageref = fb_deferred_io_pageref_get(info, offset, page);
if (WARN_ON_ONCE(!pageref)) {
ret = VM_FAULT_OOM;
diff --git a/include/linux/fb.h b/include/linux/fb.h
index 30183fd259ae..daf336385613 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -215,7 +215,6 @@ struct fb_deferred_io {
struct mutex lock; /* mutex that protects the pageref list */
struct list_head pagereflist; /* list of pagerefs for touched pages */
/* callback */
- void (*first_io)(struct fb_info *info);
void (*deferred_io)(struct fb_info *info, struct list_head *pagelist);
};
#endif
--
2.39.0
