linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Kefeng Wang <wangkefeng.wang@huawei.com>
To: Arnd Bergmann <arnd@arndb.de>, <linux-arch@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Subject: [PATCH 1/9] kallsyms: Remove arch specific text and data check
Date: Sat, 26 Jun 2021 15:34:31 +0800	[thread overview]
Message-ID: <20210626073439.150586-2-wangkefeng.wang@huawei.com> (raw)
In-Reply-To: <20210626073439.150586-1-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 1a7968cf7679..d773732cc8eb 100644
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h
@@ -33,8 +33,7 @@ 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 922288b7c03d..8a9c6c9fd0a3 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


  reply	other threads:[~2021-06-26  7:27 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-26  7:34 [PATCH 0/9] sections: Unify kernel sections range check and use Kefeng Wang
2021-06-26  7:34 ` Kefeng Wang [this message]
2021-06-26  7:34 ` [PATCH 2/9] kallsyms: Fix address-checks for kernel related range Kefeng Wang
2021-07-05  3:35   ` Sergey Senozhatsky
2021-07-07 12:43   ` Petr Mladek
2021-06-26  7:34 ` [PATCH 3/9] sections: Move and rename core_kernel_data() to is_kernel_data() Kefeng Wang
2021-06-29  1:05   ` Steven Rostedt
2021-06-29  6:36     ` Kefeng Wang
2021-06-26  7:34 ` [PATCH 4/9] sections: Move is_kernel_inittext() into sections.h Kefeng Wang
2021-06-26  7:34 ` [PATCH 5/9] kallsyms: Rename is_kernel() and is_kernel_text() Kefeng Wang
2021-06-26  7:34 ` [PATCH 6/9] sections: Add new " Kefeng Wang
2021-06-26  7:34 ` [PATCH 7/9] s390: kprobes: Use is_kernel() helper Kefeng Wang
2021-06-28 10:02   ` Heiko Carstens
2021-06-28 11:09     ` Kefeng Wang
2021-06-26  7:34 ` [PATCH 8/9] powerpc/mm: Use is_kernel_text() and is_kernel_inittext() helper Kefeng Wang
2021-06-26  7:34 ` [PATCH 9/9] dma-debug: Use memory_intersects() directly Kefeng Wang
2021-06-28  6:11   ` Christoph Hellwig
2021-06-28  6:29     ` Kefeng Wang

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210626073439.150586-2-wangkefeng.wang@huawei.com \
    --to=wangkefeng.wang@huawei.com \
    --cc=arnd@arndb.de \
    --cc=linux-arch@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).