From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:35142 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753960AbdBDKXG (ORCPT ); Sat, 4 Feb 2017 05:23:06 -0500 Subject: Patch "powerpc/mm: Use the correct pointer when setting a 2MB pte" has been added to the 4.9-stable tree To: arbab@linux.vnet.ibm.com, aneesh.kumar@linux.vnet.ibm.com, gregkh@linuxfoundation.org, mpe@ellerman.id.au Cc: , From: Date: Sat, 04 Feb 2017 11:22:52 +0100 Message-ID: <1486203772255200@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled powerpc/mm: Use the correct pointer when setting a 2MB pte to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: powerpc-mm-use-the-correct-pointer-when-setting-a-2mb-pte.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From a0615a16f7d0ceb5804d295203c302d496d8ee91 Mon Sep 17 00:00:00 2001 From: Reza Arbab Date: Wed, 25 Jan 2017 09:54:33 -0600 Subject: powerpc/mm: Use the correct pointer when setting a 2MB pte From: Reza Arbab commit a0615a16f7d0ceb5804d295203c302d496d8ee91 upstream. When setting a 2MB pte, radix__map_kernel_page() is using the address ptep = (pte_t *)pudp; Fix this conversion to use pmdp instead. Use pmdp_ptep() to do this instead of casting the pointer. Fixes: 2bfd65e45e87 ("powerpc/mm/radix: Add radix callbacks for early init routines") Reviewed-by: Aneesh Kumar K.V Signed-off-by: Reza Arbab Signed-off-by: Michael Ellerman Signed-off-by: Greg Kroah-Hartman --- arch/powerpc/mm/pgtable-radix.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/arch/powerpc/mm/pgtable-radix.c +++ b/arch/powerpc/mm/pgtable-radix.c @@ -65,7 +65,7 @@ int radix__map_kernel_page(unsigned long if (!pmdp) return -ENOMEM; if (map_page_size == PMD_SIZE) { - ptep = (pte_t *)pudp; + ptep = pmdp_ptep(pmdp); goto set_the_pte; } ptep = pte_alloc_kernel(pmdp, ea); @@ -90,7 +90,7 @@ int radix__map_kernel_page(unsigned long } pmdp = pmd_offset(pudp, ea); if (map_page_size == PMD_SIZE) { - ptep = (pte_t *)pudp; + ptep = pmdp_ptep(pmdp); goto set_the_pte; } if (!pmd_present(*pmdp)) { Patches currently in stable-queue which might be from arbab@linux.vnet.ibm.com are queue-4.9/powerpc-mm-use-the-correct-pointer-when-setting-a-2mb-pte.patch