netdev - [PATCH 3/4] xfrm/compat: Don't allocate memory with __GFP

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Message-ID: <20201207093937.2874932-4-steffen.klassert@secunet.com>
Date:   Mon, 7 Dec 2020 10:39:36 +0100
From:   Steffen Klassert <steffen.klassert@...unet.com>
To:     David Miller <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
CC:     Herbert Xu <herbert@...dor.apana.org.au>,
        Steffen Klassert <steffen.klassert@...unet.com>,
        <netdev@...r.kernel.org>
Subject: [PATCH 3/4] xfrm/compat: Don't allocate memory with __GFP_ZERO

From: Dmitry Safonov <dima@...sta.com>

32-bit to 64-bit messages translator zerofies needed paddings in the
translation, the rest is the actual payload.
Don't allocate zero pages as they are not needed.

Fixes: 5106f4a8acff ("xfrm/compat: Add 32=>64-bit messages translator")
Signed-off-by: Dmitry Safonov <dima@...sta.com>
Signed-off-by: Steffen Klassert <steffen.klassert@...unet.com>
---
 net/xfrm/xfrm_compat.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/xfrm/xfrm_compat.c b/net/xfrm/xfrm_compat.c
index 556e9f33b815..d8e8a11ca845 100644
--- a/net/xfrm/xfrm_compat.c
+++ b/net/xfrm/xfrm_compat.c
@@ -564,7 +564,7 @@ static struct nlmsghdr *xfrm_user_rcv_msg_compat(const struct nlmsghdr *h32,
 		return NULL;
 
 	len += NLMSG_HDRLEN;
-	h64 = kvmalloc(len, GFP_KERNEL | __GFP_ZERO);
+	h64 = kvmalloc(len, GFP_KERNEL);
 	if (!h64)
 		return ERR_PTR(-ENOMEM);
 
-- 
2.25.1