[Skiboot] [PATCH] pci: Do a dummy config write to devices to establish bus number

Benjamin Herrenschmidt benh at kernel.crashing.org
Thu Jun 9 18:02:49 AEST 2016


On Thu, 2016-06-09 at 15:43 +1000, Gavin Shan wrote:
> >+
> >+      /* Perform a dummy write to the device in order for it to
> >+       * capture it's own bus number, so any subsequent error
> >+       * messages will be properly tagged
> >+       */
> >+      pci_cfg_write32(phb, bdfn, 0, &vdid);
> >+
> 
> Ben, I guess it's vdid, not &vdid though the target register is read-
> only.

Hah, oops, forgot to commt the compile fix before sending the patch.

Yes, it is. I will resend tmr.

Cheers,
Ben.



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