[U-Boot] [PATCH u-boot] pci: ensure enumeration of all devices in pci_init

Marek Behún marek.behun at nic.cz
Wed May 22 10:39:08 UTC 2019


On Tue, 21 May 2019 13:43:54 +0200
Stefan Roese <sr at denx.de> wrote:

> (Added Simon & Bin to Cc)
> 
> On 21.05.19 12:04, Marek Behún wrote:
> > Use the uclass_first_device_check and uclass_next_device_check
> > functions instead of uclass_first_device and uclass_next_device in
> > pci_init. This ensures that all PCI devices are tried to be probed.
> > Currently if a device fails to probe, the enumeration stops and the
> > devices which come after the failed device are not probed.
> > 
> > Signed-off-by: Marek Behún <marek.behun at nic.cz>
> > Cc: Stefan Roese <sr at denx.de>
> > Cc: Anton Schubert <anton.schubert at gmx.de>
> > Cc: Dirk Eibach <dirk.eibach at gdsys.cc>
> > Cc: Mario Six <mario.six at gdsys.cc>
> > Cc: Chris Packham <chris.packham at alliedtelesis.co.nz>
> > Cc: Phil Sutter <phil at nwl.cc>
> > Cc: VlaoMao <vlaomao at gmail.com>
> > Cc: Tom Rini <trini at konsulko.com>
> > ---
> >   drivers/pci/pci-uclass.c | 4 ++--
> >   1 file changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/pci/pci-uclass.c b/drivers/pci/pci-uclass.c
> > index cf1e7617ae..dac7cd3e17 100644
> > --- a/drivers/pci/pci-uclass.c
> > +++ b/drivers/pci/pci-uclass.c
> > @@ -1502,9 +1502,9 @@ void pci_init(void)
> >   	 * Enumerate all known controller devices. Enumeration
> > has the side-
> >   	 * effect of probing them, so PCIe devices will be
> > enumerated too. */
> > -	for (uclass_first_device(UCLASS_PCI, &bus);
> > +	for (uclass_first_device_check(UCLASS_PCI, &bus);
> >   	     bus;
> > -	     uclass_next_device(&bus)) {
> > +	     uclass_next_device_check(&bus)) {
> >   		;
> >   	}
> >   }
> >   
> 
> Reviewed-by: Stefan Roese <sr at denx.de>
> 
> BTW: With this patch now, this one is obsolete?
> 
> http://patchwork.ozlabs.org/patch/1099538/

Yes, this is not needed anymore.
Marek


More information about the U-Boot mailing list