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>,
Kefeng Wang <wangkefeng.wang@huawei.com>
Subject: [PATCH v3 1/9] kallsyms: Remove arch specific text and data check
Date: Sun, 26 Sep 2021 15:20:40 +0800 [thread overview]
Message-ID: <20210926072048.190336-2-wangkefeng.wang@huawei.com> (raw)
In-Reply-To: <20210926072048.190336-1-wangkefeng.wang@huawei.com>
After commit 4ba66a976072 ("arch: remove blackfin port"),
no need arch-specific text/data check.
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
---
include/asm-generic/sections.h | 16 ----------------
include/linux/kallsyms.h | 3 +--
kernel/locking/lockdep.c | 3 ---
3 files changed, 1 insertion(+), 21 deletions(-)
diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h
index d16302d3eb59..817309e289db 100644
--- a/include/asm-generic/sections.h
+++ b/include/asm-generic/sections.h
@@ -64,22 +64,6 @@ extern __visible const void __nosave_begin, __nosave_end;
#define dereference_kernel_function_descriptor(p) ((void *)(p))
#endif
-/* random extra sections (if any). Override
- * in asm/sections.h */
-#ifndef arch_is_kernel_text
-static inline int arch_is_kernel_text(unsigned long addr)
-{
- return 0;
-}
-#endif
-
-#ifndef arch_is_kernel_data
-static inline int arch_is_kernel_data(unsigned long addr)
-{
- return 0;
-}
-#endif
-
/*
* Check if an address is part of freed initmem. This is needed on architectures
* with virt == phys kernel mapping, for code that wants to check if an address
diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
index 6851c2313cad..2a241e3f063f 100644
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h
@@ -34,8 +34,7 @@ static inline int is_kernel_inittext(unsigned long addr)
static inline int is_kernel_text(unsigned long addr)
{
- if ((addr >= (unsigned long)_stext && addr <= (unsigned long)_etext) ||
- arch_is_kernel_text(addr))
+ if ((addr >= (unsigned long)_stext && addr <= (unsigned long)_etext))
return 1;
return in_gate_area_no_mm(addr);
}
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 7096384dc60f..dcdbcee391cd 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -803,9 +803,6 @@ static int static_obj(const void *obj)
if ((addr >= start) && (addr < end))
return 1;
- if (arch_is_kernel_data(addr))
- return 1;
-
/*
* in-kernel percpu var?
*/
--
2.26.2
next prev parent reply other threads:[~2021-09-26 7:18 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-26 7:20 [PATCH v3 0/9] sections: Unify kernel sections range check and use Kefeng Wang
2021-09-26 7:20 ` Kefeng Wang [this message]
2021-09-26 7:20 ` [PATCH v3 2/9] kallsyms: Fix address-checks for kernel related range Kefeng Wang
2021-09-26 7:20 ` [PATCH v3 3/9] sections: Move and rename core_kernel_data() to is_kernel_core_data() Kefeng Wang
2021-09-26 7:20 ` [PATCH v3 4/9] sections: Move is_kernel_inittext() into sections.h Kefeng Wang
2021-09-26 7:20 ` [PATCH v3 5/9] x86: mm: Rename __is_kernel_text() to is_x86_32_kernel_text() Kefeng Wang
2021-09-26 7:20 ` [PATCH v3 6/9] sections: Provide internal __is_kernel() and __is_kernel_text() helper Kefeng Wang
2021-09-26 7:20 ` [PATCH v3 7/9] mm: kasan: Use is_kernel() helper Kefeng Wang
2021-09-26 7:20 ` [PATCH v3 8/9] extable: Use is_kernel_text() helper Kefeng Wang
2021-09-26 7:20 ` [PATCH v3 9/9] powerpc/mm: Use is_kernel_text() and is_kernel_inittext() helper Kefeng Wang
2021-09-28 17:51 ` Christophe Leroy
2021-09-29 1:14 ` Kefeng Wang
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