Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755725Ab3HRUdi (ORCPT ); Sun, 18 Aug 2013 16:33:38 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:43595 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756176Ab3HRUde (ORCPT ); Sun, 18 Aug 2013 16:33:34 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Linus Torvalds , Geert Uytterhoeven , Guenter Roeck Subject: [ 09/34] vm: add no-mmu vm_iomap_memory() stub Date: Sun, 18 Aug 2013 13:34:22 -0700 Message-Id: <20130818203300.326339244@linuxfoundation.org> X-Mailer: git-send-email 1.8.3.3.825.g36032ce.dirty In-Reply-To: <20130818203259.653403173@linuxfoundation.org> References: <20130818203259.653403173@linuxfoundation.org> User-Agent: quilt/0.60-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1655 Lines: 51 3.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Linus Torvalds commit 3c0b9de6d37a481673e81001c57ca0e410c72346 upstream. I think we could just move the full vm_iomap_memory() function into util.h or similar, but I didn't get any reply from anybody actually using nommu even to this trivial patch, so I'm not going to touch it any more than required. Here's the fairly minimal stub to make the nommu case at least potentially work. It doesn't seem like anybody cares, though. Signed-off-by: Linus Torvalds Cc: Geert Uytterhoeven Cc: Guenter Roeck Signed-off-by: Greg Kroah-Hartman --- mm/nommu.c | 10 ++++++++++ 1 file changed, 10 insertions(+) --- a/mm/nommu.c +++ b/mm/nommu.c @@ -1856,6 +1856,16 @@ int remap_pfn_range(struct vm_area_struc } EXPORT_SYMBOL(remap_pfn_range); +int vm_iomap_memory(struct vm_area_struct *vma, phys_addr_t start, unsigned long len) +{ + unsigned long pfn = start >> PAGE_SHIFT; + unsigned long vm_len = vma->vm_end - vma->vm_start; + + pfn += vma->vm_pgoff; + return io_remap_pfn_range(vma, vma->vm_start, pfn, vm_len, vma->vm_page_prot); +} +EXPORT_SYMBOL(vm_iomap_memory); + int remap_vmalloc_range(struct vm_area_struct *vma, void *addr, unsigned long pgoff) { -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/