[PATCH v3 5/9] x86: mm: Rename __is_kernel_text() to is_x86_32_kernel_text()

From: Kefeng Wang
Date: Sun Sep 26 2021 - 03:18:35 EST


Commit b56cd05c55a1 ("x86/mm: Rename is_kernel_text to __is_kernel_text"),
add '__' prefix not to get in conflict with existing is_kernel_text() in
<linux/kallsyms.h>.

We will add __is_kernel_text() for the basic kernel text range check in the
next patch, so use private is_x86_32_kernel_text() naming for x86 special
check.

Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: x86@xxxxxxxxxx
Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
---
arch/x86/mm/init_32.c | 14 +++++---------
1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index bd90b8fe81e4..523743ee9dea 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -238,11 +238,7 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
}
}

-/*
- * The <linux/kallsyms.h> already defines is_kernel_text,
- * using '__' prefix not to get in conflict.
- */
-static inline int __is_kernel_text(unsigned long addr)
+static inline int is_x86_32_kernel_text(unsigned long addr)
{
if (addr >= (unsigned long)_text && addr <= (unsigned long)__init_end)
return 1;
@@ -333,8 +329,8 @@ kernel_physical_mapping_init(unsigned long start,
addr2 = (pfn + PTRS_PER_PTE-1) * PAGE_SIZE +
PAGE_OFFSET + PAGE_SIZE-1;

- if (__is_kernel_text(addr) ||
- __is_kernel_text(addr2))
+ if (is_x86_32_kernel_text(addr) ||
+ is_x86_32_kernel_text(addr2))
prot = PAGE_KERNEL_LARGE_EXEC;

pages_2m++;
@@ -359,7 +355,7 @@ kernel_physical_mapping_init(unsigned long start,
*/
pgprot_t init_prot = __pgprot(PTE_IDENT_ATTR);

- if (__is_kernel_text(addr))
+ if (is_x86_32_kernel_text(addr))
prot = PAGE_KERNEL_EXEC;

pages_4k++;
@@ -820,7 +816,7 @@ static void mark_nxdata_nx(void)
*/
unsigned long start = PFN_ALIGN(_etext);
/*
- * This comes from __is_kernel_text upper limit. Also HPAGE where used:
+ * This comes from is_x86_32_kernel_text upper limit. Also HPAGE where used:
*/
unsigned long size = (((unsigned long)__init_end + HPAGE_SIZE) & HPAGE_MASK) - start;

--
2.26.2