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ipmi:pci: Blacklist a Realtek "IPMI" device

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Realtek has some sort of "Virtual" IPMI device on the PCI bus as a
KCS controller, but whatever it is, it's not one.  Ignore it if seen.

Reported-by: Chris Chiu <chiu@endlessm.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Tested-by: Daniel Drake <drake@endlessm.com>
This commit is contained in:
Corey Minyard 2018-02-15 16:58:26 -06:00
parent 4876234acc
commit bc48fa1b9d
1 changed files with 12 additions and 0 deletions
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12
drivers/char/ipmi/ipmi_si_pci.c
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@ -62,12 +62,24 @@ static int ipmi_pci_probe_regspacing(struct si_sm_io *io)
return DEFAULT_REGSPACING;
}
static struct pci_device_id ipmi_pci_blacklist[] = {
/*
* This is a "Virtual IPMI device", whatever that is. It appears
* as a KCS device by the class, but it is not one.
*/
{ PCI_VDEVICE(REALTEK, 0x816c) },
{ 0, }
};
static int ipmi_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
int rv;
struct si_sm_io io;
if (pci_match_id(ipmi_pci_blacklist, pdev))
return -ENODEV;
memset(&io, 0, sizeof(io));
io.addr_source = SI_PCI;
dev_info(&pdev->dev, "probing via PCI");