linux-kernel - Re: [GIT PULL] PCI fixes for 2.6.29

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Date:	Thu, 12 Mar 2009 18:23:57 +0100
From:	Prakash Punnoor <prakash@...noor.de>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Matthew Wilcox <matthew@....cx>, linux-pci@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [GIT PULL] PCI fixes for 2.6.29

On Mittwoch 11 März 2009 20:22:56 Linus Torvalds wrote:
> On Tue, 10 Mar 2009, Matthew Wilcox wrote:
> > These are the PCI fixes that have been piling up for the last week while
> > Jesse's been on vacation.  I don't think there's anything questionable
> > here.  All the patches have been posted to linux-pci.
>
> Grrr. It doesn't even compile cleanly:
>
> drivers/pci/quirks.c: In function ‘ht_check_msi_mapping’:
> drivers/pci/quirks.c:2142: warning: ‘return’ with no value, in function
> returning non-void
>
> and yes, it's a real bug.
>
> I'm not happy.
>
> I assume the proper fix is this trivial one-liner, but people should
> double-check.
>
> Not pulled.

As I explained to Matthew Wilcox my small patch was incorrectly applied. It 
originally was in

static void __devinit __nv_msi_ht_cap_quirk(struct pci_dev *dev, int all)

I don't know who or how it moved into

static int __devinit ht_check_msi_mapping(struct pci_dev *dev)

where it breaks for obvious reasons.


>
> 		Linus
>
> ---
>  drivers/pci/quirks.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
> index a13f3d7..4ba55d0 100644
> --- a/drivers/pci/quirks.c
> +++ b/drivers/pci/quirks.c
> @@ -2139,7 +2139,7 @@ static int __devinit ht_check_msi_mapping(struct
> pci_dev *dev)
>
>  	/* Enabling HT MSI mapping on this device breaks MCP51 */
>  	if (dev->device == 0x270)
> -		return;
> +		return 0;
>
>  	/* check if there is HT MSI cap or enabled on this device */
>  	pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
> --
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