linux-kernel - [PATCH] xtensa: noMMU: fix vm_get_page

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Message-Id: <20220705221411.3381797-1-jcmvbkbc@gmail.com>
Date:   Tue,  5 Jul 2022 15:14:11 -0700
From:   Max Filippov <jcmvbkbc@...il.com>
To:     linux-xtensa@...ux-xtensa.org
Cc:     Chris Zankel <chris@...kel.net>, linux-kernel@...r.kernel.org,
        linux-next@...r.kernel.org,
        Anshuman Khandual <anshuman.khandual@....com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Max Filippov <jcmvbkbc@...il.com>
Subject: [PATCH] xtensa: noMMU: fix vm_get_page_prot definition

Don't define protection_map and don't use DECLARE_VM_GET_PAGE_PROT in
noMMU configs, because in that case the definition for vm_get_page_prot
is provided by the include/linux/mm.h

Fixes: 61ab8053710f ("xtensa/mm: enable ARCH_HAS_VM_GET_PAGE_PROT")
Signed-off-by: Max Filippov <jcmvbkbc@...il.com>
---
 arch/xtensa/mm/init.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c
index fb830ec8183c..b2587a1a7c46 100644
--- a/arch/xtensa/mm/init.c
+++ b/arch/xtensa/mm/init.c
@@ -217,6 +217,7 @@ static int __init parse_memmap_opt(char *str)
 }
 early_param("memmap", parse_memmap_opt);
 
+#ifdef CONFIG_MMU
 static const pgprot_t protection_map[16] = {
 	[VM_NONE]					= PAGE_NONE,
 	[VM_READ]					= PAGE_READONLY,
@@ -236,3 +237,4 @@ static const pgprot_t protection_map[16] = {
 	[VM_SHARED | VM_EXEC | VM_WRITE | VM_READ]	= PAGE_SHARED_EXEC
 };
 DECLARE_VM_GET_PAGE_PROT
+#endif
-- 
2.30.2