linux-kernel - [PATCH 4.20 55/65] powerpc/4xx/ocm: Fix compilation error due to PAGE

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Date:   Fri, 11 Jan 2019 15:15:41 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Christian Lamparter <chunkeey@...il.com>,
        Christophe Leroy <christophe.leroy@....fr>,
        Michael Ellerman <mpe@...erman.id.au>
Subject: [PATCH 4.20 55/65] powerpc/4xx/ocm: Fix compilation error due to PAGE_KERNEL usage

4.20-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Christian Lamparter <chunkeey@...il.com>

commit d0757237d7b18b1ce74293be7c077d86f7a732e8 upstream.

This patch fixes a recent compilation regression in ocm:

  ocm.c: In function ‘ocm_init_node’:
  ocm.c:182:18: error: invalid operands to binary |
        (have ‘int’ and ‘pgprot_t’ {aka ‘struct <anonymous>’})
        _PAGE_EXEC | PAGE_KERNEL_NCG);
                   ^

  ocm.c:197:17: error: invalid operands to binary |
        (have ‘int’ and ‘pgprot_t’ {aka ‘struct <anonymous>’})
         _PAGE_EXEC | PAGE_KERNEL);
                    ^

Fixes: 56f3c1413f5c ("powerpc/mm: properly set PAGE_KERNEL flags in ioremap()")
Cc: stable@...r.kernel.org # v4.20
Signed-off-by: Christian Lamparter <chunkeey@...il.com>
Reviewed-by: Christophe Leroy <christophe.leroy@....fr>
Signed-off-by: Michael Ellerman <mpe@...erman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/powerpc/platforms/4xx/ocm.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/arch/powerpc/platforms/4xx/ocm.c
+++ b/arch/powerpc/platforms/4xx/ocm.c
@@ -179,7 +179,7 @@ static void __init ocm_init_node(int cou
 	/* ioremap the non-cached region */
 	if (ocm->nc.memtotal) {
 		ocm->nc.virt = __ioremap(ocm->nc.phys, ocm->nc.memtotal,
-					 _PAGE_EXEC | PAGE_KERNEL_NCG);
+			_PAGE_EXEC | pgprot_val(PAGE_KERNEL_NCG));
 
 		if (!ocm->nc.virt) {
 			printk(KERN_ERR
@@ -194,7 +194,7 @@ static void __init ocm_init_node(int cou
 
 	if (ocm->c.memtotal) {
 		ocm->c.virt = __ioremap(ocm->c.phys, ocm->c.memtotal,
-					_PAGE_EXEC | PAGE_KERNEL);
+					_PAGE_EXEC | pgprot_val(PAGE_KERNEL));
 
 		if (!ocm->c.virt) {
 			printk(KERN_ERR