From 090e77e166334b83f555de408df64b9ab394ea08 Mon Sep 17 00:00:00 2001
From: Ira Weiny <ira.weiny@intel.com>
Date: Thu, 4 Jun 2020 16:48:18 -0700
Subject: kmap: consolidate kmap_prot definitions
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Most architectures define kmap_prot to be PAGE_KERNEL.

Let sparc and xtensa define there own and define PAGE_KERNEL as the
default if not overridden.

[akpm@linux-foundation.org: coding style fixes]
Suggested-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Christian König <christian.koenig@amd.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Helge Deller <deller@gmx.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20200507150004.1423069-16-ira.weiny@intel.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/highmem.h | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'include/linux/highmem.h')

diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 091b32dff2d1..d6e82e3de027 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -40,6 +40,10 @@ extern void kunmap_atomic_high(void *kvaddr);
 static inline void kmap_flush_tlb(unsigned long addr) { }
 #endif
 
+#ifndef kmap_prot
+#define kmap_prot PAGE_KERNEL
+#endif
+
 void *kmap_high(struct page *page);
 static inline void *kmap(struct page *page)
 {
-- 
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