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Re: [PATCH 6/9] resources: add arch hook for preventing allocation in reserved areas

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From: Linus Torvalds
Subject: Re: [PATCH 6/9] resources: add arch hook for preventing allocation in reserved areas
Date: Thursday, December 16, 2010 - 3:03 pm

On Thu, Dec 16, 2010 at 9:38 AM, Bjorn Helgaas <bjorn.helgaas@hp.com> wrote:

Oh, I just realized - we've had gcc (or maybe "as") bugs when the weak
symbol is in the same compilation unit as the caller, and some part of
the toolchain just ends up short-circuiting it (either gcc inlines it,
or maybe it was that as resolves it early). Making the "weak" part not
work, because it binds strongly.

It may be that we don't support those gcc versions any more, but I
thought I'd bring the issue up. It's safer to put the weak functions
in some other file if possible.

                              Linus
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Messages in current thread:
[PATCH 0/9] PCI: revert to allocating bottom-up, avoid E82 ..., Bjorn Helgaas, (Thu Dec 16, 10:38 am)
[PATCH 1/9] Revert &quot;PCI: fix pci_bus_alloc_resource() hang ..., Bjorn Helgaas, (Thu Dec 16, 10:38 am)
[PATCH 2/9] Revert &quot;x86: allocate space within a region to ..., Bjorn Helgaas, (Thu Dec 16, 10:38 am)
[PATCH 3/9] Revert &quot;x86/PCI: allocate space from the end o ..., Bjorn Helgaas, (Thu Dec 16, 10:38 am)
[PATCH 4/9] Revert &quot;PCI: allocate bus resources from the t ..., Bjorn Helgaas, (Thu Dec 16, 10:38 am)
[PATCH 5/9] Revert &quot;resources: support allocating space wi ..., Bjorn Helgaas, (Thu Dec 16, 10:38 am)
[PATCH 6/9] resources: add arch hook for preventing alloca ..., Bjorn Helgaas, (Thu Dec 16, 10:38 am)
[PATCH 7/9] x86: avoid low BIOS area when allocating addre ..., Bjorn Helgaas, (Thu Dec 16, 10:38 am)
[PATCH 8/9] x86: avoid E820 regions when allocating addres ..., Bjorn Helgaas, (Thu Dec 16, 10:38 am)
[PATCH 9/9] x86: avoid high BIOS area when allocating addr ..., Bjorn Helgaas, (Thu Dec 16, 10:39 am)
Re: [PATCH 0/9] PCI: revert to allocating bottom-up, avoid ..., Linus Torvalds, (Thu Dec 16, 2:59 pm)
Re: [PATCH 0/9] PCI: revert to allocating bottom-up, avoid ..., Jesse Barnes, (Thu Dec 16, 3:03 pm)
Re: [PATCH 6/9] resources: add arch hook for preventing al ..., Linus Torvalds, (Thu Dec 16, 3:03 pm)
Re: [PATCH 6/9] resources: add arch hook for preventing al ..., Bjorn Helgaas, (Thu Dec 16, 3:56 pm)
Re: [PATCH 6/9] resources: add arch hook for preventing al ..., Linus Torvalds, (Thu Dec 16, 4:17 pm)
Re: [PATCH 0/9] PCI: revert to allocating bottom-up, avoid ..., H. Peter Anvin, (Thu Dec 16, 8:00 pm)
Re: [PATCH 0/9] PCI: revert to allocating bottom-up, avoid ..., Bjorn Helgaas, (Fri Dec 17, 9:00 am)
Re: [PATCH 8/9] x86: avoid E820 regions when allocating ad ..., Yinghai Lu, (Sun Dec 19, 2:50 am)
Re: [PATCH 0/9] PCI: revert to allocating bottom-up, avoid ..., David John, (Sun Dec 19, 7:31 am)
Re: [PATCH 8/9] x86: avoid E820 regions when allocating ad ..., Bjorn Helgaas, (Sun Dec 19, 4:33 pm)