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| author | Zeng Chi <zengchi@kylinos.cn> | 2026-09-21 18:24:42 +0800 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2026-09-22 08:36:16 -0700 |
| commit | 119e9db233ad0f4cbd4cfb9f9385a7bca378b37d (patch) | |
| tree | 660d50d4139cb750fbde1ae3432452c20726c99d /include/net/af_ieee802154.h | |
| download | linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.tar.gz linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.zip | |
KVM: Don't pre-reserve xarray entries when storing empty/NULL attributesgrafted
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 <seanjc@google.com>
Cc: David Ballesteros <davimaba.v@proton.me>
Signed-off-by: Zeng Chi <zengchi@kylinos.cn>
Link: https://patch.msgid.link/20260921102442.1232375-1-zeng_chi911@163.com
[sean: split to separate patch]
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'include/net/af_ieee802154.h')
| -rw-r--r-- | include/net/af_ieee802154.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/include/net/af_ieee802154.h b/include/net/af_ieee802154.h new file mode 100644 index 000000000..c16be82b9 --- /dev/null +++ b/include/net/af_ieee802154.h @@ -0,0 +1,59 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * IEEE 802.15.4 interface for userspace + * + * Copyright 2007, 2008 Siemens AG + * + * Written by: + * Sergey Lapin <slapin@ossfans.org> + * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> + */ + +#ifndef _AF_IEEE802154_H +#define _AF_IEEE802154_H + +#include <linux/socket.h> /* for sa_family_t */ + +enum { + IEEE802154_ADDR_NONE = 0x0, + /* RESERVED = 0x01, */ + IEEE802154_ADDR_SHORT = 0x2, /* 16-bit address + PANid */ + IEEE802154_ADDR_LONG = 0x3, /* 64-bit address + PANid */ +}; + +/* address length, octets */ +#define IEEE802154_ADDR_LEN 8 + +struct ieee802154_addr_sa { + int addr_type; + u16 pan_id; + union { + u8 hwaddr[IEEE802154_ADDR_LEN]; + u16 short_addr; + }; +}; + +#define IEEE802154_PANID_BROADCAST 0xffff +#define IEEE802154_ADDR_BROADCAST 0xffff +#define IEEE802154_ADDR_UNDEF 0xfffe + +struct sockaddr_ieee802154 { + sa_family_t family; /* AF_IEEE802154 */ + struct ieee802154_addr_sa addr; +}; + +/* get/setsockopt */ +#define SOL_IEEE802154 0 + +#define WPAN_WANTACK 0 +#define WPAN_SECURITY 1 +#define WPAN_SECURITY_LEVEL 2 +#define WPAN_WANTLQI 3 + +#define WPAN_SECURITY_DEFAULT 0 +#define WPAN_SECURITY_OFF 1 +#define WPAN_SECURITY_ON 2 + +#define WPAN_SECURITY_LEVEL_DEFAULT (-1) + +#endif |