Virtual addresses return from dma(m)_alloc_coherent are opaque in what backs then, and drivers must not poke into them. Switch the driver to use the generic DMA API mmap helper to avoid these problems.
Signed-off-by: Christoph Hellwig <[email protected]> --- drivers/video/fbdev/jz4740_fb.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/drivers/video/fbdev/jz4740_fb.c b/drivers/video/fbdev/jz4740_fb.c index b57df83fdbd3..b95cdfa9e0a1 100644 --- a/drivers/video/fbdev/jz4740_fb.c +++ b/drivers/video/fbdev/jz4740_fb.c @@ -466,7 +466,6 @@ static int jzfb_alloc_devmem(struct jzfb *jzfb) { int max_videosize = 0; struct fb_videomode *mode = jzfb->pdata->modes; - void *page; int i; for (i = 0; i < jzfb->pdata->num_modes; ++mode, ++i) { @@ -491,12 +490,6 @@ static int jzfb_alloc_devmem(struct jzfb *jzfb) if (!jzfb->vidmem) goto err_free_framedesc; - for (page = jzfb->vidmem; - page < jzfb->vidmem + PAGE_ALIGN(jzfb->vidmem_size); - page += PAGE_SIZE) { - SetPageReserved(virt_to_page(page)); - } - jzfb->framedesc->next = jzfb->framedesc_phys; jzfb->framedesc->addr = jzfb->vidmem_phys; jzfb->framedesc->id = 0xdeafbead; -- 2.20.1
