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Message-ID: <20240702084452.2259237-3-yumike@google.com>
Date: Tue,  2 Jul 2024 16:44:49 +0800
From: Mike Yu <yumike@...gle.com>
To: netdev@...r.kernel.org, steffen.klassert@...unet.com
Cc: stanleyjhu@...gle.com, martinwu@...gle.com, chiachangwang@...gle.com, 
	yumike@...gle.com
Subject: [PATCH ipsec 2/4] xfrm: Allow UDP encapsulation in crypto offload
 control path

Unblock this limitation so that SAs with encapsulation specified
can be passed to HW drivers. HW drivers can still reject the SA
in their implementation of xdo_dev_state_add if the encapsulation
is not supported.

Test: Verified on Android device
Signed-off-by: Mike Yu <yumike@...gle.com>
---
 net/xfrm/xfrm_device.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/xfrm/xfrm_device.c b/net/xfrm/xfrm_device.c
index 2455a76a1cff..9a44d363ba62 100644
--- a/net/xfrm/xfrm_device.c
+++ b/net/xfrm/xfrm_device.c
@@ -261,9 +261,9 @@ int xfrm_dev_state_add(struct net *net, struct xfrm_state *x,
 
 	is_packet_offload = xuo->flags & XFRM_OFFLOAD_PACKET;
 
-	/* We don't yet support UDP encapsulation and TFC padding. */
-	if ((!is_packet_offload && x->encap) || x->tfcpad) {
-		NL_SET_ERR_MSG(extack, "Encapsulation and TFC padding can't be offloaded");
+	/* We don't yet support TFC padding. */
+	if (x->tfcpad) {
+		NL_SET_ERR_MSG(extack, "TFC padding can't be offloaded");
 		return -EINVAL;
 	}
 
-- 
2.45.2.803.g4e1b14247a-goog


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