arm64/mm: move __check_safe_pte_update()

Patch series "arm64/mm: Standardize printing for pgtable entries", v3.

Standardize printing for pgtable entries using recently introduced generic
helper ptval_bytes_to_hex_str() in core MM which automatically enables 128
bits entries when added later.

But first move __check_safe_pte_update() outside <asm/pgtable.h> to avoid
a cyclic dependency while accessing these afore mentioned core MM helpers
defined in <linux/pgtable.h>.  This replaces the original page table entry
print standardisation proposal which was part of the D128 series [1].


This patch (of 2):

The page table entry print helpers and related macros which are defined in
<linux/pgtable.h> will not be accessible in platform <asm/pgtable.h> which
is basically caused by cycling dependency.

Move __check_safe_pte_update() inside arch/arm64/mm/mmu.c as a preparation
for subsequent usage of the afore mentioned generic MM helpers.  While
here drop IS_ENABLED(CONFIG_DEBUG_VM), although wrap
__check_safe_pte_update() inside #ifdef CONFIG_DEBUG_VM that preserves the
current code optimization which is achieved via the static inline
functions.

This does not cause any functional change.

[david@kernel.org: aarch64-linux-ld error]
  Link: https://lore.kernel.org/99023678-fd8a-4eef-8e43-a07b504e3e96@kernel.org
Link: https://lore.kernel.org/20260916044933.2689426-2-anshuman.khandual@arm.com
Link: https://lore.kernel.org/linux-mm/20260729122452.3797443-11-anshuman.khandual@arm.com/ [1]
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>

0 files changed, 0 insertions, 0 deletions