Hello.

Greg KH wrote:

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3x59x-fix-pci-resource-management.patch causes the following compile 
error with CONFIG_PCI=n:

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<--  snip  -->

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...
 CC      drivers/net/3c59x.o
/home/bunk/linux/kernel-2.6/linux-2.6.20-rc4-mm1/drivers/net/3c59x.c: 
In function 'vortex_init_one':
/home/bunk/linux/kernel-2.6/linux-2.6.20-rc4-mm1/drivers/net/3c59x.c:961: 
error: implicit declaration of function 'pci_request_regions'
/home/bunk/linux/kernel-2.6/linux-2.6.20-rc4-mm1/drivers/net/3c59x.c:985: 
error: implicit declaration of function 'pci_release_regions'
make[3]: *** [drivers/net/3c59x.o] Error 1

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  Grr, at at the same time it's happy with pci_enable_device().
  I'd say the problem is in <linux/pci.h>,  not in the patch.

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  Has there been any patch to fix the "unbalanced" 
pci_{request|release}_regions() declarations? Am I suposed to create 
such?

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  Alternatively, vortex_{init|remove_one() and struct pci_driver there 
could have been put under #ifdef CONFIG_PCI (good idea anyway -- should 
reduce driver size on non-PCI systems)...

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   I wonder if I may count on any feedback on this -- asking linux-pci now...
   The issue is as follows: with my patch pci_{request|release}_regions() may 
be called with CONFIG_PCI=n (probably, this never has been a issue before) but 
<linux/pci.h> don't have them declared in this case -- unlike 
pci_enable_device() which is just empty for CONFIG_PCI=n.
   Now, what kind of approach do I take:

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- a "fair one", so that pci_{request|release}_regions() get "balanced"
  declarations in the header like pci_enable_device();

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- a "local one" (and even saving non-PCI kernel from needless bloat), i.e.
  #ifdef out functions that are only meaningful with CONFIG_PCI=y)?

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   I'm leaning to the second now...

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I'd prefer the fair one -- add stubs to include/linux/pci.h.

Me too, please just send me a patch adding them to pci.h so you don't
have to have #ifdefs in your .c code.

    Erm, before I do that, could somebody explain what

#define HAVE_PCI_REQ_REGIONS 2

accompanying their declaration is for? I have't found any references to it in 
the source. Should I duplicate it for CONFIG_PCI=n case (I guess not)?

thanks,

greg k-h

WBR, Sergei