From 119e9db233ad0f4cbd4cfb9f9385a7bca378b37d Mon Sep 17 00:00:00 2001 From: Zeng Chi Date: Mon, 21 Sep 2026 18:24:42 +0800 Subject: KVM: Don't pre-reserve xarray entries when storing empty/NULL attributes Skip the xarray reservation loop when clearing all memory attributes, as storing NULL only erases the entry and never needs to allocate, so no reservation (and no cleanup of a failed one) is required in that case. Suggested-by: Sean Christopherson Cc: David Ballesteros Signed-off-by: Zeng Chi Link: https://patch.msgid.link/20260921102442.1232375-1-zeng_chi911@163.com [sean: split to separate patch] Signed-off-by: Sean Christopherson --- include/net/ipcomp.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 include/net/ipcomp.h (limited to 'include/net/ipcomp.h') diff --git a/include/net/ipcomp.h b/include/net/ipcomp.h new file mode 100644 index 000000000..51401f01e --- /dev/null +++ b/include/net/ipcomp.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _NET_IPCOMP_H +#define _NET_IPCOMP_H + +#include + +struct ip_comp_hdr; +struct netlink_ext_ack; +struct xfrm_state; + +int ipcomp_input(struct xfrm_state *x, struct sk_buff *skb); +int ipcomp_output(struct xfrm_state *x, struct sk_buff *skb); +void ipcomp_destroy(struct xfrm_state *x); +int ipcomp_init_state(struct xfrm_state *x, struct netlink_ext_ack *extack); + +static inline struct ip_comp_hdr *ip_comp_hdr(const struct sk_buff *skb) +{ + return (struct ip_comp_hdr *)skb_transport_header(skb); +} + +#endif -- cgit v1.3.1