linux-kernel - [PATCH] arm: insn: use set_fixmap

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 26 Aug 2015 09:24:26 +0800
From:	yalin wang <yalin.wang2010@...il.com>
To:	linux@....linux.org.uk, yalin.wang2010@...il.com,
	wangnan0@...wei.com, nico@...aro.org,
	masami.hiramatsu.pt@...achi.com, keescook@...omium.org,
	rabin@....in, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, will.deacon@....com
Subject: [PATCH] arm: insn: use set_fixmap_offset to make it more clear

A little change to patch_map() function,
use set_fixmap_offset() to make code more clear.

Signed-off-by: yalin wang <yalin.wang2010@...il.com>
---
 arch/arm/kernel/patch.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/arm/kernel/patch.c b/arch/arm/kernel/patch.c
index 69bda1a..5779105 100644
--- a/arch/arm/kernel/patch.c
+++ b/arch/arm/kernel/patch.c
@@ -36,9 +36,8 @@ static void __kprobes *patch_map(void *addr, int fixmap, unsigned long *flags)
 	else
 		__acquire(&patch_lock);
 
-	set_fixmap(fixmap, page_to_phys(page));
-
-	return (void *) (__fix_to_virt(fixmap) + (uintaddr & ~PAGE_MASK));
+	return (void *)set_fixmap_offset(fixmap, page_to_phys(page) +
+			(uintaddr & ~PAGE_MASK));
 }
 
 static void __kprobes patch_unmap(int fixmap, unsigned long *flags)
-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/