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Date: Thu, 14 Aug 2008 17:34:28 +0200
From: Bernhard Pfund <bernhard@domain.hid>
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Subject: Re: [Adeos-main] [RTnet-users] e1000 & MSI
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> I see no option aside of ironing the inner code that reads/writes the PCI
> config, so here is an ugly yet possible solution for x86, that might work
> (totally untested):
>=20
> diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
> index 6e64aaf..7f32101 100644
> --- a/arch/x86/pci/common.c
> +++ b/arch/x86/pci/common.c
> @@ -75,7 +75,7 @@ int pcibios_scanned;
>   * This interrupt-safe spinlock protects all accesses to PCI
>   * configuration space.
>   */
> -DEFINE_SPINLOCK(pci_config_lock);
> +IPIPE_DEFINE_SPINLOCK(pci_config_lock);
>=20
>  static int __devinit can_skip_ioresource_align(const struct dmi_system_i=
d *d)
>  {
> diff --git a/drivers/pci/access.c b/drivers/pci/access.c
> index 39bb96b..9a74083 100644
> --- a/drivers/pci/access.c
> +++ b/drivers/pci/access.c
> @@ -12,7 +12,7 @@
>   * configuration space.
>   */
>=20
> -static DEFINE_SPINLOCK(pci_lock);
> +static IPIPE_DEFINE_SPINLOCK(pci_lock);
>=20
>  /*
>   *  Wrappers for all PCI configuration access functions.  They just check
>=20

This results in:

arch/x86/pci/common.c:78: error: conflicting types for =91pci_config_lock=92
arch/x86/pci/pci.h:84: error: previous declaration of =91pci_config_lock=92
was here

Didn't look into it, just tried ;)

Bernhard