linux-kernel - [PATCH -next] dh key: convert to use be32_add

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Date:   Mon, 14 Sep 2020 12:17:47 +0800
From:   Liu Shixin <liushixin2@...wei.com>
To:     David Howells <dhowells@...hat.com>,
        Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>,
        James Morris <jmorris@...ei.org>
CC:     <keyrings@...r.kernel.org>,
        <linux-security-module@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Liu Shixin <liushixin2@...wei.com>
Subject: [PATCH -next] dh key: convert to use be32_add_cpu()

Convert cpu_to_be32(be32_to_cpu(E1) + E2) to use be32_add_cpu().

Signed-off-by: Liu Shixin <liushixin2@...wei.com>
---
 security/keys/dh.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/keys/dh.c b/security/keys/dh.c
index 1abfa70ed6e1..2635cb8a4561 100644
--- a/security/keys/dh.c
+++ b/security/keys/dh.c
@@ -186,7 +186,7 @@ static int kdf_ctr(struct kdf_sdesc *sdesc, const u8 *src, unsigned int slen,
 
 		dlen -= h;
 		dst += h;
-		counter = cpu_to_be32(be32_to_cpu(counter) + 1);
+		be32_add_cpu(&counter, 1);
 	}
 
 	return 0;
-- 
2.25.1