[patch V5 02/39] x86/boot: Use __pa_nodebug() in mk_early_pgtbl_32()

From: Thomas Gleixner
Date: Tue Oct 17 2023 - 17:23:33 EST


From: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

Use the existing macro instead of undefining and redefining __pa().

No functional change.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
V5: New patch
---
arch/x86/kernel/head32.c | 16 ++++++----------
1 file changed, 6 insertions(+), 10 deletions(-)
---
--- a/arch/x86/kernel/head32.c
+++ b/arch/x86/kernel/head32.c
@@ -73,25 +73,21 @@ void __init mk_early_pgtbl_32(void);

void __init __no_stack_protector mk_early_pgtbl_32(void)
{
-#ifdef __pa
-#undef __pa
-#endif
-#define __pa(x) ((unsigned long)(x) - PAGE_OFFSET)
pte_t pte, *ptep;
int i;
unsigned long *ptr;
/* Enough space to fit pagetables for the low memory linear map */
- const unsigned long limit = __pa(_end) +
+ const unsigned long limit = __pa_nodebug(_end) +
(PAGE_TABLE_SIZE(LOWMEM_PAGES) << PAGE_SHIFT);
#ifdef CONFIG_X86_PAE
- pmd_t pl2, *pl2p = (pmd_t *)__pa(initial_pg_pmd);
+ pmd_t pl2, *pl2p = (pmd_t *)__pa_nodebug(initial_pg_pmd);
#define SET_PL2(pl2, val) { (pl2).pmd = (val); }
#else
- pgd_t pl2, *pl2p = (pgd_t *)__pa(initial_page_table);
+ pgd_t pl2, *pl2p = (pgd_t *)__pa_nodebug(initial_page_table);
#define SET_PL2(pl2, val) { (pl2).pgd = (val); }
#endif

- ptep = (pte_t *)__pa(__brk_base);
+ ptep = (pte_t *)__pa_nodebug(__brk_base);
pte.pte = PTE_IDENT_ATTR;

while ((pte.pte & PTE_PFN_MASK) < limit) {
@@ -111,11 +107,11 @@ void __init __no_stack_protector mk_earl
pl2p++;
}

- ptr = (unsigned long *)__pa(&max_pfn_mapped);
+ ptr = (unsigned long *)__pa_nodebug(&max_pfn_mapped);
/* Can't use pte_pfn() since it's a call with CONFIG_PARAVIRT */
*ptr = (pte.pte & PTE_PFN_MASK) >> PAGE_SHIFT;

- ptr = (unsigned long *)__pa(&_brk_end);
+ ptr = (unsigned long *)__pa_nodebug(&_brk_end);
*ptr = (unsigned long)ptep + PAGE_OFFSET;
}