115 lines
3.4 KiB
C
115 lines
3.4 KiB
C
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/*
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* Copyright 2007-2012 Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Compatibility file for Linux wireless for kernels 2.6.25.
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*/
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#include <linux/miscdevice.h>
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#include <linux/pci.h>
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/*
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* To backport b718989d correctly pcibios_enable_device()
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* is required but we don't have access to it on modules
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* as its an architecture specific routine that is not
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* exported and as such only core kernel code has access
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* to it. We implement a sloppy work around for backporting
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* this.
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*/
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int pci_enable_device_mem(struct pci_dev *dev)
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{
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int bars = pci_select_bars(dev, IORESOURCE_MEM);
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return pci_enable_device_bars(dev, bars);
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}
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EXPORT_SYMBOL_GPL(pci_enable_device_mem);
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/**
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* The following things are out of ./lib/vsprintf.c
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* The new iwlwifi driver is using them.
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*/
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/**
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* strict_strtoul - convert a string to an unsigned long strictly
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* @cp: The string to be converted
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* @base: The number base to use
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* @res: The converted result value
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*
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* strict_strtoul converts a string to an unsigned long only if the
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* string is really an unsigned long string, any string containing
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* any invalid char at the tail will be rejected and -EINVAL is returned,
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* only a newline char at the tail is acceptible because people generally
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* change a module parameter in the following way:
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*
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* echo 1024 > /sys/module/e1000/parameters/copybreak
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*
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* echo will append a newline to the tail.
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*
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* It returns 0 if conversion is successful and *res is set to the converted
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* value, otherwise it returns -EINVAL and *res is set to 0.
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*
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* simple_strtoul just ignores the successive invalid characters and
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* return the converted value of prefix part of the string.
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*/
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int strict_strtoul(const char *cp, unsigned int base, unsigned long *res);
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/**
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* strict_strtol - convert a string to a long strictly
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* @cp: The string to be converted
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* @base: The number base to use
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* @res: The converted result value
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*
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* strict_strtol is similiar to strict_strtoul, but it allows the first
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* character of a string is '-'.
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*
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* It returns 0 if conversion is successful and *res is set to the converted
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* value, otherwise it returns -EINVAL and *res is set to 0.
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*/
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int strict_strtol(const char *cp, unsigned int base, long *res);
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#define define_strict_strtoux(type, valtype) \
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int strict_strtou##type(const char *cp, unsigned int base, valtype *res)\
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{ \
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char *tail; \
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valtype val; \
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size_t len; \
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\
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*res = 0; \
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len = strlen(cp); \
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if (len == 0) \
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return -EINVAL; \
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\
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val = simple_strtou##type(cp, &tail, base); \
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if ((*tail == '\0') || \
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((len == (size_t)(tail - cp) + 1) && (*tail == '\n'))) {\
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*res = val; \
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return 0; \
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} \
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\
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return -EINVAL; \
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} \
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#define define_strict_strtox(type, valtype) \
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int strict_strto##type(const char *cp, unsigned int base, valtype *res) \
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{ \
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int ret; \
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if (*cp == '-') { \
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ret = strict_strtou##type(cp+1, base, res); \
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if (!ret) \
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*res = -(*res); \
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} else \
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ret = strict_strtou##type(cp, base, res); \
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\
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return ret; \
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} \
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define_strict_strtoux(l, unsigned long)
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define_strict_strtox(l, long)
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EXPORT_SYMBOL_GPL(strict_strtoul);
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EXPORT_SYMBOL_GPL(strict_strtol);
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