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Add unlikely() statement to optimise the IS_ERR_VALUE() macro.

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Obtained from:	kmacy @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
This commit is contained in:
Hans Petter Selasky 2016-05-13 11:30:56 +00:00
parent e20f435517
commit 677a229c76
1 changed files with 4 additions and 2 deletions
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6
sys/compat/linuxkpi/common/include/linux/err.h
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@ -2,7 +2,7 @@
* Copyright (c) 2010 Isilon Systems, Inc.
* Copyright (c) 2010 iX Systems, Inc.
* Copyright (c) 2010 Panasas, Inc.
* Copyright (c) 2013-2015 Mellanox Technologies, Ltd.
* Copyright (c) 2013-2016 Mellanox Technologies, Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -31,9 +31,11 @@
#ifndef _LINUX_ERR_H_
#define _LINUX_ERR_H_
#include <linux/compiler.h>
#define MAX_ERRNO 4095
#define IS_ERR_VALUE(x) ((x) >= (unsigned long)-MAX_ERRNO)
#define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO)
static inline void *
ERR_PTR(long error)