From: David Woodhouse <dwmw@amazon.co.uk>
Date: Fri, 7 Apr 2017 09:22:42 +0000 (+0200)
Subject: ia64: Remove redundant valid_mmap_phys_addr_range() from pci_mmap_page_range()
X-Git-Tag: v4.12-rc1~65^2~2^2~2
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=61eee41ae135517392d05cbf1177523a02f12727;p=karo-tx-linux.git

ia64: Remove redundant valid_mmap_phys_addr_range() from pci_mmap_page_range()

We know we are within a valid MMIO BAR by the time this function gets
called; there's no need to check.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Tested-by: Tony Luck <tony.luck@intel.com>
---

diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 053c688b15a5..27020f30caa6 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -439,9 +439,6 @@ pci_mmap_page_range (struct pci_dev *dev, int bar,
 		 */
 		return -EINVAL;
 
-	if (!valid_mmap_phys_addr_range(vma->vm_pgoff, size))
-		return -EINVAL;
-
 	prot = phys_mem_access_prot(NULL, vma->vm_pgoff, size,
 				    vma->vm_page_prot);