[021/127] asm-generic: remove pgtable-nop4d-hack.h

Commit Message

Andrew Morton June 4, 2020, 11:47 p.m. UTC

From: Mike Rapoport <[e-mail]>
Subject: asm-generic: remove pgtable-nop4d-hack.h

No architecture defines __ARCH_USE_5LEVEL_HACK and therefore
pgtable-nop4d-hack.h will be never actually included.

Remove it.

Link: http://lkml.kernel.org/r/[e-mail]
Signed-off-by: Mike Rapoport <[e-mail]>
Cc: Arnd Bergmann <[e-mail]>
Cc: Benjamin Herrenschmidt <[e-mail]>
Cc: Brian Cain <[e-mail]>
Cc: Catalin Marinas <[e-mail]>
Cc: Christophe Leroy <[e-mail]>
Cc: Fenghua Yu <[e-mail]>
Cc: Geert Uytterhoeven <[e-mail]>
Cc: Guan Xuetao <[e-mail]>
Cc: James Morse <[e-mail]>
Cc: Jonas Bonn <[e-mail]>
Cc: Julien Thierry <[e-mail]>
Cc: Ley Foon Tan <[e-mail]>
Cc: Marc Zyngier <[e-mail]>
Cc: Michael Ellerman <[e-mail]>
Cc: Paul Mackerras <[e-mail]>
Cc: Rich Felker <[e-mail]>
Cc: Russell King <[e-mail]>
Cc: Stafford Horne <[e-mail]>
Cc: Stefan Kristiansson <[e-mail]>
Cc: Suzuki K Poulose <[e-mail]>
Cc: Tony Luck <[e-mail]>
Cc: Will Deacon <[e-mail]>
Cc: Yoshinori Sato <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
---

 include/asm-generic/pgtable-nop4d-hack.h |   64 ---------------------
 include/asm-generic/pgtable-nopud.h      |    4 -
 2 files changed, 68 deletions(-)

Patch

--- a/include/asm-generic/pgtable-nop4d-hack.h
+++ /dev/null
@@ -1,64 +0,0 @@ 
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _PGTABLE_NOP4D_HACK_H
-#define _PGTABLE_NOP4D_HACK_H
-
-#ifndef __ASSEMBLY__
-#include <asm-generic/5level-fixup.h>
-
-#define __PAGETABLE_PUD_FOLDED 1
-
-/*
- * Having the pud type consist of a pgd gets the size right, and allows
- * us to conceptually access the pgd entry that this pud is folded into
- * without casting.
- */
-typedef struct { pgd_t pgd; } pud_t;
-
-#define PUD_SHIFT	PGDIR_SHIFT
-#define PTRS_PER_PUD	1
-#define PUD_SIZE	(1UL << PUD_SHIFT)
-#define PUD_MASK	(~(PUD_SIZE-1))
-
-/*
- * The "pgd_xxx()" functions here are trivial for a folded two-level
- * setup: the pud is never bad, and a pud always exists (as it's folded
- * into the pgd entry)
- */
-static inline int pgd_none(pgd_t pgd)		{ return 0; }
-static inline int pgd_bad(pgd_t pgd)		{ return 0; }
-static inline int pgd_present(pgd_t pgd)	{ return 1; }
-static inline void pgd_clear(pgd_t *pgd)	{ }
-#define pud_ERROR(pud)				(pgd_ERROR((pud).pgd))
-
-#define pgd_populate(mm, pgd, pud)		do { } while (0)
-#define pgd_populate_safe(mm, pgd, pud)		do { } while (0)
-/*
- * (puds are folded into pgds so this doesn't get actually called,
- * but the define is needed for a generic inline function.)
- */
-#define set_pgd(pgdptr, pgdval)	set_pud((pud_t *)(pgdptr), (pud_t) { pgdval })
-
-static inline pud_t *pud_offset(pgd_t *pgd, unsigned long address)
-{
-	return (pud_t *)pgd;
-}
-
-#define pud_val(x)				(pgd_val((x).pgd))
-#define __pud(x)				((pud_t) { __pgd(x) })
-
-#define pgd_page(pgd)				(pud_page((pud_t){ pgd }))
-#define pgd_page_vaddr(pgd)			(pud_page_vaddr((pud_t){ pgd }))
-
-/*
- * allocating and freeing a pud is trivial: the 1-entry pud is
- * inside the pgd, so has no extra memory associated with it.
- */
-#define pud_alloc_one(mm, address)		NULL
-#define pud_free(mm, x)				do { } while (0)
-#define __pud_free_tlb(tlb, x, a)		do { } while (0)
-
-#undef  pud_addr_end
-#define pud_addr_end(addr, end)			(end)
-
-#endif /* __ASSEMBLY__ */
-#endif /* _PGTABLE_NOP4D_HACK_H */
--- a/include/asm-generic/pgtable-nopud.h~asm-generic-remove-pgtable-nop4d-hackh
+++ a/include/asm-generic/pgtable-nopud.h
@@ -4,9 +4,6 @@ 
 
 #ifndef __ASSEMBLY__
 
-#ifdef __ARCH_USE_5LEVEL_HACK
-#include <asm-generic/pgtable-nop4d-hack.h>
-#else
 #include <asm-generic/pgtable-nop4d.h>
 
 #define __PAGETABLE_PUD_FOLDED 1
@@ -65,5 +62,4 @@  static inline pud_t *pud_offset(p4d_t *p
 #define pud_addr_end(addr, end)			(end)
 
 #endif /* __ASSEMBLY__ */
-#endif /* !__ARCH_USE_5LEVEL_HACK */
 #endif /* _PGTABLE_NOPUD_H */