Re: [PATCH 03/16] 64bit resource: fix up printks for resources in networks drivers

Greg KH
2006-06-13T16:33:19Z

On Tue, Jun 13, 2006 at 09:24:55AM -0700, Jesse Brandeburg wrote:
> First, added netdev,
>
> On 6/12/06, Greg KH <greg@kroah.com> wrote:
> >From: Greg Kroah-Hartman <gregkh@suse.de>
> >
> >This is needed if we wish to change the size of the resource structures.
> >
> >Based on an original patch from Vivek Goyal <vgoyal@in.ibm.com>
> >
> >Cc: Vivek Goyal <vgoyal@in.ibm.com>
> >Cc: Andrew Morton <akpm@osdl.org>
> >Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
> >---
> > drivers/net/3c59x.c | 6 ++++--
> > drivers/net/8139cp.c | 9 +++++----
> > drivers/net/8139too.c | 6 +++---
> > drivers/net/e100.c | 4 ++--
> > drivers/net/skge.c | 4 ++--
> > drivers/net/sky2.c | 6 +++---
> > drivers/net/tulip/de2104x.c | 9 +++++----
> > drivers/net/tulip/tulip_core.c | 6 +++---
> > drivers/net/typhoon.c | 5 +++--
> > drivers/net/wan/dscc4.c | 12 ++++++------
> > drivers/net/wan/pc300_drv.c | 4 ++--
> > 11 files changed, 38 insertions(+), 33 deletions(-)
> >
> >diff --git a/drivers/net/e100.c b/drivers/net/e100.c
> >index 31ac001..0c0bd67 100644
> >--- a/drivers/net/e100.c
> >+++ b/drivers/net/e100.c
> >@@ -2678,9 +2678,9 @@ #endif
> > goto err_out_free;
> > }
> >
> >- DPRINTK(PROBE, INFO, "addr 0x%lx, irq %d, "
> >+ DPRINTK(PROBE, INFO, "addr 0x%llx, irq %d, "
> > "MAC addr %02X:%02X:%02X:%02X:%02X:%02X\n",
> >- pci_resource_start(pdev, 0), pdev->irq,
> >+ (unsigned long long)pci_resource_start(pdev, 0), pdev->irq,
> > netdev->dev_addr[0], netdev->dev_addr[1],
> > netdev->dev_addr[2],
> > netdev->dev_addr[3], netdev->dev_addr[4],
> > netdev->dev_addr[5]);
>
> color me confused, but why is this change necessary for e100? e100
> can not support 64 bit BARs, so it seems to me to make little sense to
> cast to unsigned long long. e100 is 32 bit the whole way through.

Because the result of pci_resource_start() just became either u32 or u64
depending on a config option, and so, to keep everything sane, we just
always cast it to unsigned long long, which makes everyone happy.

Hope this helps,

greg k-h