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authorCorey Minyard <cminyard@mvista.com>2018-02-15 16:58:26 -0600
committerCorey Minyard <cminyard@mvista.com>2018-03-13 06:58:47 -0500
commitbc48fa1b9d3b04106055b27078da824cd209865a (patch)
tree68b48c746f9291aeb10600a6c777b7eec38d51d3 /drivers/char
parent4876234acc5441e325f262eec48672ee7f4a0cc6 (diff)
downloadlinux-bc48fa1b9d3b04106055b27078da824cd209865a.tar.bz2
ipmi:pci: Blacklist a Realtek "IPMI" device
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>
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/ipmi/ipmi_si_pci.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/char/ipmi/ipmi_si_pci.c b/drivers/char/ipmi/ipmi_si_pci.c
index b1c055540b26..f54ca6869ed2 100644
--- a/drivers/char/ipmi/ipmi_si_pci.c
+++ b/drivers/char/ipmi/ipmi_si_pci.c
@@ -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");