linux-kernel - Re: [PATCH] pci: Fix printk warnings in probe.c

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Date:	Thu, 28 Aug 2008 15:33:05 -0700
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"Bjorn Helgaas" <bjorn.helgaas@...com>
Cc:	"Johann Felix Soden" <johfel@....de>,
	"Jesse Barnes" <jbarnes@...tuousgeek.org>,
	linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] pci: Fix printk warnings in probe.c

On Thu, Aug 28, 2008 at 3:27 PM, Bjorn Helgaas <bjorn.helgaas@...com> wrote:
> On Friday 22 August 2008 12:46:59 pm Johann Felix Soden wrote:
>> From: Johann Felix Soden <johfel@...rs.sourceforge.net>
>>
>> Fix printk format warnings:
>> drivers/pci/probe.c: In function 'pci_read_bridge_bases':
>> drivers/pci/probe.c:386: warning: format '%llx' expects type 'long long unsigned int', but argument 3 has type 'resource_size_t'
>> drivers/pci/probe.c:386: warning: format '%llx' expects type 'long long unsigned int', but argument 4 has type 'resource_size_t'
>> drivers/pci/probe.c:398: warning: format '%llx' expects type 'long long unsigned int', but argument 3 has type 'resource_size_t'
>> drivers/pci/probe.c:398: warning: format '%llx' expects type 'long long unsigned int', but argument 4 has type 'resource_size_t'
>> drivers/pci/probe.c:434: warning: format '%llx' expects type 'long long unsigned int', but argument 4 has type 'resource_size_t'
>> drivers/pci/probe.c:434: warning: format '%llx' expects type 'long long unsigned int', but argument 5 has type 'resource_size_t'
>>
>> Signed-off-by: Johann Felix Soden <johfel@...rs.sourceforge.net>
>> ---
>>  drivers/pci/probe.c |   11 ++++++++---
>>  1 files changed, 8 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
>> index cce2f4c..0ad9367 100644
>> --- a/drivers/pci/probe.c
>> +++ b/drivers/pci/probe.c
>> @@ -383,7 +383,9 @@ void __devinit pci_read_bridge_bases(struct pci_bus *child)
>>                       res->start = base;
>>               if (!res->end)
>>                       res->end = limit + 0xfff;
>> -             printk(KERN_INFO "PCI: bridge %s io port: [%llx, %llx]\n", pci_name(dev), res->start, res->end);
>> +             printk(KERN_INFO "PCI: bridge %s io port: [%llx, %llx]\n",
>> +                     pci_name(dev), (unsigned long long) res->start,
>> +                     (unsigned long long) res->end);
>
> Thanks for fixing the warnings.  I wish you'd changed these at the
> same time to use dev_info() and "[%#llx-%#llx]" like the rest of PCI.
>
> I confess I don't understand where the ioport, mmio, and prefetchable
> mmio resources are coming from here, but before your patch, these
> printed values that look like junk on an HP nw8000:
>
>  PCI: bridge 0000:00:01.0 io port: [2fff00002000, ef92eae800000300]
>  PCI: bridge 0000:00:01.0 32bit mmio: [904fffff90400000, ef92eae800000300]
>  PCI: bridge 0000:00:01.0 32bit mmio pref: [9fffffff98000000, ef92eae8]
>
> I just returned the laptop, or I'd double-check to see whether your casts
> fixed this.

you must use 32 bit with !64bit_resource..

can we just make resource_t to be ull to 32bit unconditionally?

YH
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