cregit-Linux how code gets into the kernel

Release 4.11 drivers/scsi/csiostor/csio_defs.h

/*
 * This file is part of the Chelsio FCoE driver for Linux.
 *
 * Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#ifndef __CSIO_DEFS_H__

#define __CSIO_DEFS_H__

#include <linux/kernel.h>
#include <linux/stddef.h>
#include <linux/timer.h>
#include <linux/list.h>
#include <linux/bug.h>
#include <linux/pci.h>
#include <linux/jiffies.h>


#define CSIO_INVALID_IDX		0xFFFFFFFF

#define CSIO_INC_STATS(elem, val)	((elem)->stats.val++)

#define CSIO_DEC_STATS(elem, val)	((elem)->stats.val--)

#define CSIO_VALID_WWN(__n)		((*__n >> 4) == 0x5 ? true : false)

#define CSIO_DID_MASK			0xFFFFFF

#define CSIO_WORD_TO_BYTE		4

#ifndef readq

static inline u64 readq(void __iomem *addr) { return readl(addr) + ((u64)readl(addr + 4) << 32); }

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static inline void writeq(u64 val, void __iomem *addr) { writel(val, addr); writel(val >> 32, addr + 4); }

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#endif
static inline int csio_list_deleted(struct list_head *list) { return ((list->next == list) && (list->prev == list)); }

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#define csio_list_next(elem) (((struct list_head *)(elem))->next) #define csio_list_prev(elem) (((struct list_head *)(elem))->prev) /* State machine */ typedef void (*csio_sm_state_t)(void *, uint32_t); struct csio_sm { struct list_head sm_list; csio_sm_state_t sm_state; };
static inline void csio_set_state(void *smp, void *state) { ((struct csio_sm *)smp)->sm_state = (csio_sm_state_t)state; }

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static inline void csio_init_state(struct csio_sm *smp, void *state) { csio_set_state(smp, state); }

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static inline void csio_post_event(void *smp, uint32_t evt) { ((struct csio_sm *)smp)->sm_state(smp, evt); }

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static inline csio_sm_state_t csio_get_state(void *smp) { return ((struct csio_sm *)smp)->sm_state; }

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static inline bool csio_match_state(void *smp, void *state) { return (csio_get_state(smp) == (csio_sm_state_t)state); }

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#define CSIO_ASSERT(cond) BUG_ON(!(cond)) #ifdef __CSIO_DEBUG__ #define CSIO_DB_ASSERT(__c) CSIO_ASSERT((__c)) #else #define CSIO_DB_ASSERT(__c) #endif #endif /* ifndef __CSIO_DEFS_H__ */

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