From: Zenghui Yu yuzenghui@huawei.com
commit 2546287c5fb363a0165933ae2181c92f03e701d0 upstream.
This was noticed when printing debugfs for MSIs on my ARM64 server. The new dstate IRQD_MSI_NOMASK_QUIRK came out surprisingly while it should only be the x86 stuff for the time being...
The new MSI quirk flag uses the same bit as IRQ_DOMAIN_NAME_ALLOCATED which is oddly defined as bit 6 for no good reason.
Switch it to the non used bit 1.
Fixes: 6f1a4891a592 ("x86/apic/msi: Plug non-maskable MSI affinity race") Signed-off-by: Zenghui Yu yuzenghui@huawei.com Signed-off-by: Thomas Gleixner tglx@linutronix.de Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20200221020725.2038-1-yuzenghui@huawei.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- include/linux/irqdomain.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/include/linux/irqdomain.h +++ b/include/linux/irqdomain.h @@ -188,7 +188,7 @@ enum { IRQ_DOMAIN_FLAG_HIERARCHY = (1 << 0),
/* Irq domain name was allocated in __irq_domain_add() */ - IRQ_DOMAIN_NAME_ALLOCATED = (1 << 6), + IRQ_DOMAIN_NAME_ALLOCATED = (1 << 1),
/* Irq domain is an IPI domain with virq per cpu */ IRQ_DOMAIN_FLAG_IPI_PER_CPU = (1 << 2),