netdev - [PATCH 4/8] xfrm: rely on XFRM offload

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Message-ID: <20250324061855.4116819-5-steffen.klassert@secunet.com>
Date: Mon, 24 Mar 2025 07:18:51 +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 4/8] xfrm: rely on XFRM offload

From: Leon Romanovsky <leonro@...dia.com>

After change of initialization of x->type_offload pointer to be valid
only for offloaded SAs. There is no need to rely on both x->type_offload
and x->xso.type to determine if SA is offloaded or not.

Reviewed-by: Zhu Yanjun <yanjun.zhu@...ux.dev>
Signed-off-by: Leon Romanovsky <leonro@...dia.com>
Signed-off-by: Steffen Klassert <steffen.klassert@...unet.com>
---
 net/xfrm/xfrm_device.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/net/xfrm/xfrm_device.c b/net/xfrm/xfrm_device.c
index 97c8030cc417..8d24f4743107 100644
--- a/net/xfrm/xfrm_device.c
+++ b/net/xfrm/xfrm_device.c
@@ -419,13 +419,11 @@ bool xfrm_dev_offload_ok(struct sk_buff *skb, struct xfrm_state *x)
 	struct xfrm_dst *xdst = (struct xfrm_dst *)dst;
 	struct net_device *dev = x->xso.dev;
 
-	if (!x->type_offload ||
-	    (x->xso.type == XFRM_DEV_OFFLOAD_UNSPECIFIED && x->encap))
+	if (x->xso.type == XFRM_DEV_OFFLOAD_UNSPECIFIED)
 		return false;
 
 	if (x->xso.type == XFRM_DEV_OFFLOAD_PACKET ||
-	    ((!dev || (dev == xfrm_dst_path(dst)->dev)) &&
-	     !xdst->child->xfrm)) {
+	    ((dev == xfrm_dst_path(dst)->dev) && !xdst->child->xfrm)) {
 		mtu = xfrm_state_mtu(x, xdst->child_mtu_cached);
 		if (skb->len <= mtu)
 			goto ok;
@@ -437,8 +435,8 @@ bool xfrm_dev_offload_ok(struct sk_buff *skb, struct xfrm_state *x)
 	return false;
 
 ok:
-	if (dev && dev->xfrmdev_ops && dev->xfrmdev_ops->xdo_dev_offload_ok)
-		return x->xso.dev->xfrmdev_ops->xdo_dev_offload_ok(skb, x);
+	if (dev->xfrmdev_ops->xdo_dev_offload_ok)
+		return dev->xfrmdev_ops->xdo_dev_offload_ok(skb, x);
 
 	return true;
 }
-- 
2.34.1