/* Null security operations. * * Copyright (C) 2016 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public Licence * as published by the Free Software Foundation; either version * 2 of the Licence, or (at your option) any later version. */ #include #include "ar-internal.h" static int none_init_connection_security(struct rxrpc_connection *conn) { return 0; } static int none_prime_packet_security(struct rxrpc_connection *conn) { return 0; } static int none_secure_packet(struct rxrpc_call *call, struct sk_buff *skb, size_t data_size, void *sechdr) { return 0; } static int none_verify_packet(struct rxrpc_call *call, struct sk_buff *skb, unsigned int offset, unsigned int len, rxrpc_seq_t seq, u16 expected_cksum) { return 0; } static void none_locate_data(struct rxrpc_call *call, struct sk_buff *skb, unsigned int *_offset, unsigned int *_len) { } static int none_respond_to_challenge(struct rxrpc_connection *conn, struct sk_buff *skb, u32 *_abort_code) { *_abort_code = RX_PROTOCOL_ERROR; return -EPROTO; } static int none_verify_response(struct rxrpc_connection *conn, struct sk_buff *skb, u32 *_abort_code) { *_abort_code = RX_PROTOCOL_ERROR; return -EPROTO; } static void none_clear(struct rxrpc_connection *conn) { } static int none_init(void) { return 0; } static void none_exit(void) { } /* * RxRPC Kerberos-based security */ const struct rxrpc_security rxrpc_no_security = { .name = "none", .security_index = RXRPC_SECURITY_NONE, .init = none_init, .exit = none_exit, .init_connection_security = none_init_connection_security, .prime_packet_security = none_prime_packet_security, .secure_packet = none_secure_packet, .verify_packet = none_verify_packet, .locate_data = none_locate_data, .respond_to_challenge = none_respond_to_challenge, .verify_response = none_verify_response, .clear = none_clear, }; 85b589f686725ff5bc3b9b25'>commitdiff
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authorThomas Gleixner <tglx@linutronix.de>2017-01-31 09:37:34 +0100
committerThomas Gleixner <tglx@linutronix.de>2017-01-31 21:47:58 +0100
commit0becc0ae5b42828785b589f686725ff5bc3b9b25 (patch)
treebe6d0e1f37c38ed0a7dd5da2d4b1e93f0fb43101 /tools/arch/arm/include
parent24c2503255d35c269b67162c397a1a1c1e02f6ce (diff)
x86/mce: Make timer handling more robust
Erik reported that on a preproduction hardware a CMCI storm triggers the BUG_ON in add_timer_on(). The reason is that the per CPU MCE timer is started by the CMCI logic before the MCE CPU hotplug callback starts the timer with add_timer_on(). So the timer is already queued which triggers the BUG. Using add_timer_on() is pretty pointless in this code because the timer is strictlty per CPU, initialized as pinned and all operations which arm the timer happen on the CPU to which the timer belongs. Simplify the whole machinery by using mod_timer() instead of add_timer_on() which avoids the problem because mod_timer() can handle already queued timers. Use __start_timer() everywhere so the earliest armed expiry time is preserved. Reported-by: Erik Veijola <erik.veijola@intel.com> Tested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Borislav Petkov <bp@alien8.de> Cc: Tony Luck <tony.luck@intel.com> Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701310936080.3457@nanos Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'tools/arch/arm/include')