Unfortunately fb_defio being enabled by nommu devices seems enormously
ingrained in the kernel to the point that it's not feasible to address that
in this series, so we use an ifdef to workaround.
However this workaround unfortunately missed some unused variables -
correct this.
This has been tested locally with W=1 and confirmed to resolve the issue.
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@xxxxxxxxxx>
---
drivers/video/fbdev/core/fb_defio.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/video/fbdev/core/fb_defio.c b/drivers/video/fbdev/core/fb_defio.c
index acf7bc7ac45f..4fc93f253e06 100644
--- a/drivers/video/fbdev/core/fb_defio.c
+++ b/drivers/video/fbdev/core/fb_defio.c
@@ -265,15 +265,15 @@ static void fb_deferred_io_work(struct work_struct *work)
/* here we wrprotect the page's mappings, then do all deferred IO. */
mutex_lock(&fbdefio->lock);
+#ifdef CONFIG_MMU
list_for_each_entry(pageref, &fbdefio->pagereflist, list) {
struct page *page = pageref->page;
pgoff_t pgoff = pageref->offset >> PAGE_SHIFT;
-#ifdef CONFIG_MMU
mapping_wrprotect_range(fbdefio->mapping, pgoff,
page_to_pfn(page), 1);
-#endif
}
+#endif
/* driver's callback with pagereflist */
fbdefio->deferred_io(info, &fbdefio->pagereflist);
--
2.48.1
