[patch 03/11] parisc: fix compilation errrors

[patch 03/11] parisc: fix compilation errrors

[akpm]

From: Qian Cai <cai@lca.pw>
Subject: parisc: fix compilation errrors

Commit 0cfaee2af3a0 ("include/asm-generic/5level-fixup.h: fix variable
'p4d' set but not used") converted a few functions from macros to static
inline, which causes parisc to complain,

In file included from ./include/asm-generic/4level-fixup.h:38:0,
                 from ./arch/parisc/include/asm/pgtable.h:5,
                 from ./arch/parisc/include/asm/io.h:6,
                 from ./include/linux/io.h:13,
                 from sound/core/memory.c:9:
./include/asm-generic/5level-fixup.h:14:18: error: unknown type name
'pgd_t'; did you mean 'pid_t'?
 #define p4d_t    pgd_t
                  ^
./include/asm-generic/5level-fixup.h:24:28: note: in expansion of macro
'p4d_t'
 static inline int p4d_none(p4d_t p4d)
                            ^~~~~

It is because "4level-fixup.h" is included before "asm/page.h" where
"pgd_t" is defined.

Link: http://lkml.kernel.org/r/20190815205305.1382-1-cai@lca.pw
Fixes: 0cfaee2af3a0 ("include/asm-generic/5level-fixup.h: fix variable 'p4d' set but not used")
Signed-off-by: Qian Cai <cai@lca.pw>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/parisc/include/asm/pgtable.h |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/arch/parisc/include/asm/pgtable.h~parisc-fix-compilation-errrors
+++ a/arch/parisc/include/asm/pgtable.h
@@ -2,6 +2,7 @@
 #ifndef _PARISC_PGTABLE_H
 #define _PARISC_PGTABLE_H
 
+#include <asm/page.h>
 #include <asm-generic/4level-fixup.h>
 
 #include <asm/fixmap.h>
@@ -98,8 +99,6 @@ static inline void purge_tlb_entries(str
 
 #endif /* !__ASSEMBLY__ */
 
-#include <asm/page.h>
-
 #define pte_ERROR(e) \
 	printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e))
 #define pmd_ERROR(e) \
_