[GIT pull] x86 fix for 4.10

From: Thomas Gleixner
Date: Sat Feb 18 2017 - 04:33:29 EST


Linus,

please pull the latest x86-urgent-for-linus git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-urgent-for-linus

Make the build clean by working around yet another GCC stupidity.

Thanks,

tglx

------------------>
Kirill A. Shutemov (1):
x86/vm86: Fix unused variable warning if THP is disabled


arch/x86/kernel/vm86_32.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
index ec5d7545e6dc..0442d98367ae 100644
--- a/arch/x86/kernel/vm86_32.c
+++ b/arch/x86/kernel/vm86_32.c
@@ -160,11 +160,12 @@ void save_v86_state(struct kernel_vm86_regs *regs, int retval)

static void mark_screen_rdonly(struct mm_struct *mm)
{
+ struct vm_area_struct *vma;
+ spinlock_t *ptl;
pgd_t *pgd;
pud_t *pud;
pmd_t *pmd;
pte_t *pte;
- spinlock_t *ptl;
int i;

down_write(&mm->mmap_sem);
@@ -177,7 +178,7 @@ static void mark_screen_rdonly(struct mm_struct *mm)
pmd = pmd_offset(pud, 0xA0000);

if (pmd_trans_huge(*pmd)) {
- struct vm_area_struct *vma = find_vma(mm, 0xA0000);
+ vma = find_vma(mm, 0xA0000);
split_huge_pmd(vma, pmd, 0xA0000);
}
if (pmd_none_or_clear_bad(pmd))