From: zengzhaoxiu@163.com
To: linux-kernel@vger.kernel.org
Cc: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>,
        "J. Bruce Fields" <bfields@fieldses.org>,
        Jeff Layton <jlayton@poochiereds.net>,
        Trond Myklebust <trond.myklebust@primarydata.com>,
        Anna Schumaker <anna.schumaker@netapp.com>,
        "David S. Miller" <davem@davemloft.net>,
        Herbert Xu <herbert@gondor.apana.org.au>, linux-nfs@vger.kernel.org,
        netdev@vger.kernel.org
Subject: [PATCH V3 10/29] sunrpc: use parity8
Date: Thu, 14 Apr 2016 11:08:57 +0800
Message-Id: <1460603338-4955-1-git-send-email-zengzhaoxiu@163.com>
In-Reply-To: <1460601525-3822-1-git-send-email-zengzhaoxiu@163.com>
References: <1460601525-3822-1-git-send-email-zengzhaoxiu@163.com>
Sender: linux-nfs-owner@vger.kernel.org

From: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>

Signed-off-by: Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com>
---
 net/sunrpc/auth_gss/gss_krb5_keys.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/net/sunrpc/auth_gss/gss_krb5_keys.c b/net/sunrpc/auth_gss/gss_krb5_keys.c
index 8701331..c41b389 100644
--- a/net/sunrpc/auth_gss/gss_krb5_keys.c
+++ b/net/sunrpc/auth_gss/gss_krb5_keys.c
@@ -243,16 +243,12 @@ err_return:
 	return ret;
 }
 
-#define smask(step) ((1<<step)-1)
-#define pstep(x, step) (((x)&smask(step))^(((x)>>step)&smask(step)))
-#define parity_char(x) pstep(pstep(pstep((x), 4), 2), 1)
-
 static void mit_des_fixup_key_parity(u8 key[8])
 {
 	int i;
 	for (i = 0; i < 8; i++) {
 		key[i] &= 0xfe;
-		key[i] |= 1^parity_char(key[i]);
+		key[i] |= !parity8(key[i]);
 	}
 }
 
-- 
2.5.0