From: Michael Ellerman <mpe@ellerman.id.au>
To: Christian Zigotzky <chzigotzky@xenosoft.de>,
linuxppc-dev@lists.ozlabs.org,
Bjorn Helgaas <bhelgaas@google.com>
Subject: Re: [PATCH] SB600 for the Nemo board has non-zero devices on non-root bus
Date: Fri, 24 Nov 2017 00:31:18 +1100 [thread overview]
Message-ID: <87tvxl15qx.fsf@concordia.ellerman.id.au> (raw)
In-Reply-To: <f3513294-6da0-456f-0f98-1f8c3bac90c9@xenosoft.de>
Hi Christian,
Thanks for your patch.
Christian Zigotzky <chzigotzky@xenosoft.de> writes:
> Hi All,
>
> Just a small patch for the P.A. Semi Nemo board:
>
> -----
>
> diff -rupN a/drivers/pci/probe.c b/drivers/pci/probe.c
> --- a/drivers/pci/probe.c=C2=A0=C2=A0=C2=A0 2017-11-16 08:18:40.504012010=
+0100
> +++ b/drivers/pci/probe.c=C2=A0=C2=A0=C2=A0 2017-11-16 08:17:22.044368405=
+0100
> @@ -2219,6 +2219,8 @@ static int only_one_child(struct pci_bus
As this is a patch to the PCI code I can't merge it via the powerpc
tree. You would need to send it to linux-pci@vger.kernel.org.
>
> =C2=A0=C2=A0=C2=A0=C2=A0 if (!parent || !pci_is_pcie(parent))
> =C2=A0=C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 return 0;
> +=C2=A0=C2=A0=C2=A0 #ifndef CONFIG_PPC_PASEMI_NEMO
> +=C2=A0=C2=A0=C2=A0 // SB600 for the Nemo board has non-zero devices on n=
on-root bus.
> =C2=A0=C2=A0=C2=A0=C2=A0 if (pci_pcie_type(parent) =3D=3D PCI_EXP_TYPE_R=
OOT_PORT)
> =C2=A0=C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 return 1;
>
> @@ -2231,6 +2233,7 @@ static int only_one_child(struct pci_bus
> =C2=A0=C2=A0=C2=A0=C2=A0 if (parent->has_secondary_link &&
> =C2=A0=C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 !pci_has_flag(PCI_SCAN_ALL_P=
CIE_DEVS))
> =C2=A0=C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 return 1;
> +=C2=A0=C2=A0=C2=A0 #endif
But the PCI maintainer is not going to accept a patch like this, which
adds a platform specific #ifdef in core code like this.
If you look at the rest of that file I don't think you'll find a single
#ifdef other than for generic configuration symbols.
Are you sure the PCI_SCAN_ALL_PCIE_DEVS logic doesn't work for you? It
sounds like it was added for exactly this problem.
cheers
next prev parent reply other threads:[~2017-11-23 13:31 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-16 7:47 [PATCH] SB600 for the Nemo board has non-zero devices on non-root bus Christian Zigotzky
2017-11-23 13:31 ` Michael Ellerman [this message]
2017-11-29 19:28 ` Christian Zigotzky
2017-11-29 19:46 ` Bjorn Helgaas
2017-11-29 20:45 ` Christian Zigotzky
2017-11-29 22:34 ` Bjorn Helgaas
2017-11-29 23:39 ` Christian Zigotzky
2017-11-30 22:42 ` Bjorn Helgaas
2017-12-01 22:08 ` Christian Zigotzky
2017-12-01 23:27 ` Bjorn Helgaas
2017-12-02 12:54 ` Christian Zigotzky
2017-12-02 23:00 ` Olof Johansson
2017-12-02 23:02 ` Olof Johansson
2017-12-03 9:43 ` Christian Zigotzky
2017-12-06 8:37 ` Christian Zigotzky
2017-12-06 11:03 ` Christian Zigotzky
2017-12-06 12:57 ` Michael Ellerman
2017-12-06 21:06 ` Bjorn Helgaas
2017-12-08 11:59 ` Michael Ellerman
2017-12-09 18:03 ` Christian Zigotzky
2017-12-15 8:04 ` Christian Zigotzky
2017-12-15 20:25 ` Bjorn Helgaas
2017-12-16 7:18 ` Christian Zigotzky
2017-12-22 9:57 ` Christian Zigotzky
2017-12-22 10:22 ` Christian Zigotzky
2017-12-22 11:19 ` Michael Ellerman
2017-12-22 12:11 ` Christian Zigotzky
2018-06-04 14:10 ` Michael Ellerman
2018-06-04 14:10 ` Michael Ellerman
2017-12-06 12:44 ` [PATCH] " Michael Ellerman
2017-12-06 15:53 ` Olof Johansson
2017-12-08 11:57 ` Michael Ellerman
2018-03-16 12:10 ` [PATCH 0/1] PCI set flag PCI_SCAN_ALL_PCIE_DEVS for P.A. Semi boards Christian Zigotzky
2018-03-16 12:55 ` [PATCH 1/1] " Christian Zigotzky
2018-03-19 19:13 ` Bjorn Helgaas
2018-03-19 20:46 ` Christian Zigotzky
2018-03-19 22:32 ` Michael Ellerman
2018-03-21 6:44 ` Christian Zigotzky
2018-03-25 20:55 ` Darren Stevens
2018-04-16 4:29 ` [PATCH 1/1] " Christian Zigotzky
2017-12-04 11:40 ` SB600 for the Nemo board has non-zero devices on non-root bus Darren Stevens
2017-12-04 13:31 ` Christian Zigotzky
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