On 1/26/21 11:51 PM, David Hildenbrand wrote:
> This function is never used and it is one of the last remaining user of
> __free_reserved_page(). Let's just drop it.
>
> Cc: Andrew Morton <[email protected]>
> Cc: Thomas Gleixner <[email protected]>
> Cc: "Peter Zijlstra (Intel)" <[email protected]>
> Cc: Mike Rapoport <[email protected]>
> Cc: Oscar Salvador <[email protected]>
> Cc: Michal Hocko <[email protected]>
> Cc: Wei Yang <[email protected]>
> Cc: "Gustavo A. R. Silva" <[email protected]>
> Cc: Sam Ravnborg <[email protected]>
> Signed-off-by: David Hildenbrand <[email protected]>
There is no other reference for free_unused_pages() in the tree.
Reviewed-by: Anshuman Khandual <[email protected]>
> ---
> drivers/video/fbdev/acornfb.c | 34 ----------------------------------
> 1 file changed, 34 deletions(-)
>
> diff --git a/drivers/video/fbdev/acornfb.c b/drivers/video/fbdev/acornfb.c
> index bcc92aecf666..1b72edc01cfb 100644
> --- a/drivers/video/fbdev/acornfb.c
> +++ b/drivers/video/fbdev/acornfb.c
> @@ -921,40 +921,6 @@ static int acornfb_detect_monitortype(void)
> return 4;
> }
>
> -/*
> - * This enables the unused memory to be freed on older Acorn machines.
> - * We are freeing memory on behalf of the architecture initialisation
> - * code here.
> - */
> -static inline void
> -free_unused_pages(unsigned int virtual_start, unsigned int virtual_end)
> -{
> - int mb_freed = 0;
> -
> - /*
> - * Align addresses
> - */
> - virtual_start = PAGE_ALIGN(virtual_start);
> - virtual_end = PAGE_ALIGN(virtual_end);
> -
> - while (virtual_start < virtual_end) {
> - struct page *page;
> -
> - /*
> - * Clear page reserved bit,
> - * set count to 1, and free
> - * the page.
> - */
> - page = virt_to_page(virtual_start);
> - __free_reserved_page(page);
> -
> - virtual_start += PAGE_SIZE;
> - mb_freed += PAGE_SIZE / 1024;
> - }
> -
> - printk("acornfb: freed %dK memory\n", mb_freed);
> -}
> -
> static int acornfb_probe(struct platform_device *dev)
> {
> unsigned long size;
>
