/* Copyright (c) 2016 Facebook
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation.
 */
#ifndef __PERCPU_FREELIST_H__
#define __PERCPU_FREELIST_H__
#include <linux/spinlock.h>
#include <linux/percpu.h>

struct pcpu_freelist_head {
	struct pcpu_freelist_node *first;
	raw_spinlock_t lock;
};

struct pcpu_freelist {
	struct pcpu_freelist_head __percpu *freelist;
};

struct pcpu_freelist_node {
	struct pcpu_freelist_node *next;
};

void pcpu_freelist_push(struct pcpu_freelist *, struct pcpu_freelist_node *);
struct pcpu_freelist_node *pcpu_freelist_pop(struct pcpu_freelist *);
void pcpu_freelist_populate(struct pcpu_freelist *s, void *buf, u32 elem_size,
			    u32 nr_elems);
int pcpu_freelist_init(struct pcpu_freelist *);
void pcpu_freelist_destroy(struct pcpu_freelist *s);
#endif
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<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
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<tr><th>author</th><td>Vincent &lt;vincent.stehle@laposte.net&gt;</td><td class='right'>2017-01-30 15:06:43 +0100</td></tr>
<tr><th>committer</th><td>David S. Miller &lt;davem@davemloft.net&gt;</td><td class='right'>2017-01-31 13:07:40 -0500</td></tr>
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<div class='commit-subject'>net: thunderx: avoid dereferencing xcv when NULL</div><div class='commit-msg'>This fixes the following smatch and coccinelle warnings:

  drivers/net/ethernet/cavium/thunder/thunder_xcv.c:119 xcv_setup_link() error: we previously assumed 'xcv' could be null (see line 118) [smatch]
  drivers/net/ethernet/cavium/thunder/thunder_xcv.c:119:16-20: ERROR: xcv is NULL but dereferenced. [coccinelle]

Fixes: 6465859aba1e66a5 ("net: thunderx: Add RGMII interface type support")
Signed-off-by: Vincent Stehlé &lt;vincent.stehle@laposte.net&gt;
Cc: Sunil Goutham &lt;sgoutham@cavium.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
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