[PATCH v4 09/11] powerpc/mm: Use core_kernel_text() helper

[Kefeng Wang]

Use core_kernel_text() helper to simplify code, also drop etext,
_stext, _sinittext, _einittext declaration which already declared
in section.h.

Cc: Michael Ellerman <m...@ellerman.id.au>
Cc: Benjamin Herrenschmidt <b...@kernel.crashing.org>
Cc: Paul Mackerras <pau...@samba.org>
Cc: Christophe Leroy <christophe.le...@csgroup.eu>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Kefeng Wang <wangkefeng.w...@huawei.com>
---
 arch/powerpc/mm/pgtable_32.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index dcf5ecca19d9..079abbf45a33 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -33,8 +33,6 @@
 
 #include <mm/mmu_decl.h>
 
-extern char etext[], _stext[], _sinittext[], _einittext[];
-
 static u8 early_fixmap_pagetable[FIXMAP_PTE_SIZE] __page_aligned_data;
 
 notrace void __init early_ioremap_init(void)
@@ -104,14 +102,13 @@ static void __init __mapin_ram_chunk(unsigned long 
offset, unsigned long top)
 {
        unsigned long v, s;
        phys_addr_t p;
-       int ktext;
+       bool ktext;
 
        s = offset;
        v = PAGE_OFFSET + s;
        p = memstart_addr + s;
        for (; s < top; s += PAGE_SIZE) {
-               ktext = ((char *)v >= _stext && (char *)v < etext) ||
-                       ((char *)v >= _sinittext && (char *)v < _einittext);
+               ktext = core_kernel_text(v);
                map_kernel_page(v, p, ktext ? PAGE_KERNEL_TEXT : PAGE_KERNEL);
                v += PAGE_SIZE;
                p += PAGE_SIZE;
-- 
2.26.2