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From: Kefeng Wang <wangkefeng.wang@huawei.com>
To: <arnd@arndb.de>, <linux-arch@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>, <linuxppc-dev@lists.ozlabs.org>,
	<rostedt@goodmis.org>, <mingo@redhat.com>, <davem@davemloft.net>,
	<ast@kernel.org>, <ryabinin.a.a@gmail.com>,
	<akpm@linux-foundation.org>
Cc: <mpe@ellerman.id.au>, <benh@kernel.crashing.org>,
	<paulus@samba.org>, <bpf@vger.kernel.org>,
	<linux-alpha@vger.kernel.org>,
	Christophe Leroy <christophe.leroy@csgroup.eu>,
	Kefeng Wang <wangkefeng.wang@huawei.com>
Subject: [PATCH v4 09/11] powerpc/mm: Use core_kernel_text() helper
Date: Thu, 30 Sep 2021 15:11:41 +0800	[thread overview]
Message-ID: <20210930071143.63410-10-wangkefeng.wang@huawei.com> (raw)
In-Reply-To: <20210930071143.63410-1-wangkefeng.wang@huawei.com>

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

Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Kefeng Wang <wangkefeng.wang@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


  parent reply	other threads:[~2021-09-30  7:09 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-30  7:11 [PATCH v4 00/11] sections: Unify kernel sections range check and use Kefeng Wang
2021-09-30  7:11 ` [PATCH v4 01/11] kallsyms: Remove arch specific text and data check Kefeng Wang
2021-09-30  7:11 ` [PATCH v4 02/11] kallsyms: Fix address-checks for kernel related range Kefeng Wang
2021-09-30  7:11 ` [PATCH v4 03/11] sections: Move and rename core_kernel_data() to is_kernel_core_data() Kefeng Wang
2021-09-30  7:11 ` [PATCH v4 04/11] sections: Move is_kernel_inittext() into sections.h Kefeng Wang
2021-09-30  7:11 ` [PATCH v4 05/11] x86: mm: Rename __is_kernel_text() to is_x86_32_kernel_text() Kefeng Wang
2021-09-30  7:11 ` [PATCH v4 06/11] sections: Provide internal __is_kernel() and __is_kernel_text() helper Kefeng Wang
2021-09-30  7:11 ` [PATCH v4 07/11] mm: kasan: Use is_kernel() helper Kefeng Wang
2021-09-30 15:45   ` Alexander Potapenko
2021-10-03 17:19   ` Andrey Konovalov
2021-09-30  7:11 ` [PATCH v4 08/11] extable: Use is_kernel_text() helper Kefeng Wang
2021-09-30  7:11 ` Kefeng Wang [this message]
2021-09-30  7:11 ` [PATCH v4 10/11] microblaze: " Kefeng Wang
2021-09-30 10:13   ` Michal Simek
2021-09-30  7:11 ` [PATCH v4 11/11] alpha: " Kefeng Wang

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