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/datalink.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 include/net/datalink.h (limited to 'include/net/datalink.h') diff --git a/include/net/datalink.h b/include/net/datalink.h new file mode 100644 index 000000000..6c529a40e --- /dev/null +++ b/include/net/datalink.h @@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _NET_INET_DATALINK_H_ +#define _NET_INET_DATALINK_H_ + +#include + +struct llc_sap; +struct net_device; +struct packet_type; +struct sk_buff; + +struct datalink_proto { + unsigned char type[8]; + + struct llc_sap *sap; + + unsigned short header_length; + + int (*rcvfunc)(struct sk_buff *, struct net_device *, + struct packet_type *, struct net_device *); + int (*request)(struct datalink_proto *, struct sk_buff *, + const unsigned char *); + struct list_head node; +}; + +#endif -- cgit v1.3.1