| Message ID | 20121127004233.3604.33429.sendpatchset@tindoh.g01.fujitsu.local (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Bjorn Helgaas |
| Headers | show |
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c index 720e973..2bb7ecc 100644 --- a/arch/x86/pci/common.c +++ b/arch/x86/pci/common.c @@ -615,8 +615,10 @@ int pcibios_enable_device(struct pci_dev *dev, int mask) if ((err = pci_enable_resources(dev, mask)) < 0) return err; - if (!pci_dev_msi_enabled(dev)) + if (!pci_dev_msi_enabled(dev)) { + pci_intx(dev, true); return pcibios_enable_irq(dev); + } return 0; }
This patch enables INTx if MSI is disabled in pcibios_enable_device(). In normal case interrupt disable bit in command register is 0b on boot time, but in case of kdump, this bit may be 1b. It causes problems of some drivers. At leaset I confirmed mptsas driver does not work in such a case. This patch fix this problem. Signed-off-by: Takao Indoh <indou.takao@jp.fujitsu.com> --- arch/x86/pci/common.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-)