mirror of
https://github.com/AlexisTM/RT-WiFi.git
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59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
/*
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* Copyright (c) 2013 Luis R. Rodriguez <mcgrof@do-not-panic.com>
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*
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* Backport functionality introduced in Linux 3.9.
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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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#include <linux/module.h>
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#include <linux/device.h>
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#include <linux/err.h>
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#include <linux/netdevice.h>
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#include <linux/if.h>
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#include <linux/if_ether.h>
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#include <linux/etherdevice.h>
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void __iomem *devm_ioremap_resource(struct device *dev, struct resource *res)
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{
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void __iomem *dest_ptr;
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dest_ptr = devm_ioremap_resource(dev, res);
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if (!dest_ptr)
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return (void __iomem *)ERR_PTR(-ENOMEM);
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return dest_ptr;
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}
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EXPORT_SYMBOL_GPL(devm_ioremap_resource);
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/**
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* eth_prepare_mac_addr_change - prepare for mac change
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* @dev: network device
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* @p: socket address
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*/
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int eth_prepare_mac_addr_change(struct net_device *dev, void *p)
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{
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struct sockaddr *addr = p;
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if (!(dev->priv_flags & IFF_LIVE_ADDR_CHANGE) && netif_running(dev))
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return -EBUSY;
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if (!is_valid_ether_addr(addr->sa_data))
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return -EADDRNOTAVAIL;
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return 0;
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}
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EXPORT_SYMBOL_GPL(eth_prepare_mac_addr_change);
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/**
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* eth_commit_mac_addr_change - commit mac change
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* @dev: network device
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* @p: socket address
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*/
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void eth_commit_mac_addr_change(struct net_device *dev, void *p)
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{
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struct sockaddr *addr = p;
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memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
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}
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EXPORT_SYMBOL_GPL(eth_commit_mac_addr_change);
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