Unlike a child of an MSI NEXUS domain, a child of an MSI_REMAP domain will not invoke init_dev_msi_info() with 'domain' equal to 'msi_parent_domain'. This is because the MSI_REMAP domain implements init_dev_msi_info() with msi_parent_init_dev_msi_info(), which makes 'domain' point to the NEXUS (IMSIC) domain, while keeping 'msi_parent_domain' pointing to itself. The rest of the IMSIC init_dev_msi_info() implementation works for MSI_REMAP domains, though, so there's nothing to do to add support except accept the token. Signed-off-by: Andrew Jones <ajones@xxxxxxxxxxxxxxxx> --- drivers/irqchip/irq-riscv-imsic-platform.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/irqchip/irq-riscv-imsic-platform.c b/drivers/irqchip/irq-riscv-imsic-platform.c index 5d7c30ad8855..6a7d7fefda6a 100644 --- a/drivers/irqchip/irq-riscv-imsic-platform.c +++ b/drivers/irqchip/irq-riscv-imsic-platform.c @@ -246,6 +246,8 @@ static bool imsic_init_dev_msi_info(struct device *dev, case DOMAIN_BUS_NEXUS: if (WARN_ON_ONCE(domain != real_parent)) return false; + fallthrough; + case DOMAIN_BUS_MSI_REMAP: #ifdef CONFIG_SMP info->chip->irq_set_affinity = irq_chip_set_affinity_parent; #endif -- 2.47.0
