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>
Cc: <mpe@ellerman.id.au>, <benh@kernel.crashing.org>,
<paulus@samba.org>, Kefeng Wang <wangkefeng.wang@huawei.com>
Subject: [PATCH v2 7/7] powerpc/mm: Use is_kernel_text() and is_kernel_inittext() helper
Date: Wed, 28 Jul 2021 16:13:20 +0800 [thread overview]
Message-ID: <20210728081320.20394-8-wangkefeng.wang@huawei.com> (raw)
In-Reply-To: <20210728081320.20394-1-wangkefeng.wang@huawei.com>
Use is_kernel_text() and is_kernel_inittext() 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: 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..13c798308c2e 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 = (is_kernel_text(v) || is_kernel_inittext(v));
map_kernel_page(v, p, ktext ? PAGE_KERNEL_TEXT : PAGE_KERNEL);
v += PAGE_SIZE;
p += PAGE_SIZE;
--
2.26.2
prev parent reply other threads:[~2021-07-28 8:07 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-28 8:13 [PATCH v2 0/7] sections: Unify kernel sections range check and use Kefeng Wang
2021-07-28 8:13 ` [PATCH v2 1/7] kallsyms: Remove arch specific text and data check Kefeng Wang
2021-07-28 8:13 ` [PATCH v2 2/7] kallsyms: Fix address-checks for kernel related range Kefeng Wang
2021-07-28 14:46 ` Steven Rostedt
2021-07-29 2:03 ` Kefeng Wang
2021-07-28 8:13 ` [PATCH v2 3/7] sections: Move and rename core_kernel_data() to is_kernel_core_data() Kefeng Wang
2021-07-28 8:13 ` [PATCH v2 4/7] sections: Move is_kernel_inittext() into sections.h Kefeng Wang
2021-07-28 8:13 ` [PATCH v2 5/7] kallsyms: Rename is_kernel() and is_kernel_text() Kefeng Wang
2021-07-28 15:28 ` Steven Rostedt
2021-07-29 2:00 ` Kefeng Wang
2021-07-29 4:05 ` Steven Rostedt
2021-07-29 11:06 ` Kefeng Wang
2021-07-28 8:13 ` [PATCH v2 6/7] sections: Add new " Kefeng Wang
2021-07-28 15:32 ` Steven Rostedt
2021-07-29 2:02 ` Kefeng Wang
2021-07-28 8:13 ` Kefeng Wang [this message]
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