linux-kernel - [PATCH 3/3] powerpc: Merge raw_copy_to_user_allowed() into raw_copy_to

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-prev] [day] [month] [year] [list]

Date:   Mon, 11 Jan 2021 12:46:00 +0000 (UTC)
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>, cmr@...efail.de
Cc:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH 3/3] powerpc: Merge raw_copy_to_user_allowed() into
 raw_copy_to_user()

Since commit 17bc43367fc2 ("powerpc/uaccess: Implement
unsafe_copy_to_user() as a simple loop"), raw_copy_to_user_allowed()
is only used by raw_copy_to_user().

Merge raw_copy_to_user_allowed() into raw_copy_to_user().

Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu>
---
 arch/powerpc/include/asm/uaccess.h | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h
index f1df444bfb04..ff550d5dbf38 100644
--- a/arch/powerpc/include/asm/uaccess.h
+++ b/arch/powerpc/include/asm/uaccess.h
@@ -411,19 +411,13 @@ static inline unsigned long raw_copy_from_user(void *to,
 	return ret;
 }
 
-static inline unsigned long
-raw_copy_to_user_allowed(void __user *to, const void *from, unsigned long n)
-{
-	return __copy_tofrom_user(to, (__force const void __user *)from, n);
-}
-
 static inline unsigned long
 raw_copy_to_user(void __user *to, const void *from, unsigned long n)
 {
 	unsigned long ret;
 
 	allow_write_to_user(to, n);
-	ret = raw_copy_to_user_allowed(to, from, n);
+	ret = __copy_tofrom_user(to, (__force const void __user *)from, n);
 	prevent_write_to_user(to, n);
 	return ret;
 }
-- 
2.25.0