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Revision 7f680d7ec3153dffc4d37aea517ead2b9fb9b8e9 authored by Linus Torvalds on 20 August 2017, 16:36:52 UTC, committed by Linus Torvalds on 20 August 2017, 16:36:52 UTC 
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
 
Pull x86 fixes from Thomas Gleixner:
 "Another pile of small fixes and updates for x86:

   - Plug a hole in the SMAP implementation which misses to clear AC on
     NMI entry

   - Fix the norandmaps/ADDR_NO_RANDOMIZE logic so the command line
     parameter works correctly again

   - Use the proper accessor in the startup64 code for next_early_pgt to
     prevent accessing of invalid addresses and faulting in the early
     boot code.

   - Prevent CPU hotplug lock recursion in the MTRR code

   - Unbreak CPU0 hotplugging

   - Rename overly long CPUID bits which got introduced in this cycle

   - Two commits which mark data 'const' and restrict the scope of data
     and functions to file scope by making them 'static'"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Constify attribute_group structures
  x86/boot/64/clang: Use fixup_pointer() to access 'next_early_pgt'
  x86/elf: Remove the unnecessary ADDR_NO_RANDOMIZE checks
  x86: Fix norandmaps/ADDR_NO_RANDOMIZE
  x86/mtrr: Prevent CPU hotplug lock recursion
  x86: Mark various structures and functions as 'static'
  x86/cpufeature, kvm/svm: Rename (shorten) the new "virtualized VMSAVE/VMLOAD" CPUID flag
  x86/smpboot: Unbreak CPU0 hotplug
  x86/asm/64: Clear AC on NMI entries
2 parent s 2615a38 + 45bd07a
Raw File
team_mode_random.c 
/*
 * drivers/net/team/team_mode_random.c - Random mode for team
 * Copyright (c) 2013 Jiri Pirko <jiri@resnulli.us>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */

#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/skbuff.h>
#include <linux/if_team.h>

static bool rnd_transmit(struct team *team, struct sk_buff *skb)
{
	struct team_port *port;
	int port_index;

	port_index = prandom_u32_max(team->en_port_count);
	port = team_get_port_by_index_rcu(team, port_index);
	if (unlikely(!port))
		goto drop;
	port = team_get_first_port_txable_rcu(team, port);
	if (unlikely(!port))
		goto drop;
	if (team_dev_queue_xmit(team, port, skb))
		return false;
	return true;

drop:
	dev_kfree_skb_any(skb);
	return false;
}

static const struct team_mode_ops rnd_mode_ops = {
	.transmit		= rnd_transmit,
	.port_enter		= team_modeop_port_enter,
	.port_change_dev_addr	= team_modeop_port_change_dev_addr,
};

static const struct team_mode rnd_mode = {
	.kind		= "random",
	.owner		= THIS_MODULE,
	.ops		= &rnd_mode_ops,
	.lag_tx_type	= NETDEV_LAG_TX_TYPE_RANDOM,
};

static int __init rnd_init_module(void)
{
	return team_mode_register(&rnd_mode);
}

static void __exit rnd_cleanup_module(void)
{
	team_mode_unregister(&rnd_mode);
}

module_init(rnd_init_module);
module_exit(rnd_cleanup_module);

MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>");
MODULE_DESCRIPTION("Random mode for team");
MODULE_ALIAS_TEAM_MODE("random");
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