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R. Silva" , Sam Ravnborg Subject: [PATCH v1 1/2] video: fbdev: acornfb: remove free_unused_pages() Date: Tue, 26 Jan 2021 19:21:12 +0100 Message-Id: <20210126182113.19892-2-david@redhat.com> In-Reply-To: <20210126182113.19892-1-david@redhat.com> References: <20210126182113.19892-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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 Cc: Thomas Gleixner Cc: "Peter Zijlstra (Intel)" Cc: Mike Rapoport Cc: Oscar Salvador Cc: Michal Hocko Cc: Wei Yang Cc: "Gustavo A. R. Silva" Cc: Sam Ravnborg Signed-off-by: David Hildenbrand Reviewed-by: Oscar Salvador Reviewed-by: Anshuman Khandual --- 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;