PCI: pull pcibios_setup() up into core
Currently, all of the architectures implement their own pcibios_setup() routine. Most of the implementations do nothing so this patch introduces a generic (__weak) routine in the core that can be used by all architectures as a default. If necessary, it can be overridden by architecture-specific code. Signed-off-by: Myron Stowe <myron.stowe@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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@ -2665,6 +2665,18 @@ static void __pci_set_master(struct pci_dev *dev, bool enable)
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dev->is_busmaster = enable;
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}
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/**
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* pcibios_setup - process "pci=" kernel boot arguments
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* @str: string used to pass in "pci=" kernel boot arguments
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*
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* Process kernel boot arguments. This is the default implementation.
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* Architecture specific implementations can override this as necessary.
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*/
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char * __weak __init pcibios_setup(char *str)
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{
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return str;
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}
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/**
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* pcibios_set_master - enable PCI bus-mastering for device dev
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* @dev: the PCI device to enable
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@ -642,6 +642,7 @@ extern int no_pci_devices(void);
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void pcibios_fixup_bus(struct pci_bus *);
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int __must_check pcibios_enable_device(struct pci_dev *, int mask);
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/* Architecture specific versions may override this (weak) */
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char *pcibios_setup(char *str);
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/* Used only when drivers/pci/setup.c is used */
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