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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 08/11] extable: Use is_kernel_text() helper
Date: Thu, 30 Sep 2021 15:11:40 +0800	[thread overview]
Message-ID: <20210930071143.63410-9-wangkefeng.wang@huawei.com> (raw)
In-Reply-To: <20210930071143.63410-1-wangkefeng.wang@huawei.com>

The core_kernel_text() should check the gate area, as it is part
of kernel text range, use is_kernel_text() in core_kernel_text().

Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
---
 kernel/extable.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/extable.c b/kernel/extable.c
index 98ca627ac5ef..0ba383d850ff 100644
--- a/kernel/extable.c
+++ b/kernel/extable.c
@@ -64,8 +64,7 @@ const struct exception_table_entry *search_exception_tables(unsigned long addr)
 
 int notrace core_kernel_text(unsigned long addr)
 {
-	if (addr >= (unsigned long)_stext &&
-	    addr < (unsigned long)_etext)
+	if (is_kernel_text(addr))
 		return 1;
 
 	if (system_state < SYSTEM_RUNNING &&
-- 
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 ` Kefeng Wang [this message]
2021-09-30  7:11 ` [PATCH v4 09/11] powerpc/mm: Use core_kernel_text() helper Kefeng Wang
2021-09-30  7:11 ` [PATCH v4 10/11] microblaze: Use is_kernel_text() helper 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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