| Message ID | 20250124085140.44792-1-eichest@gmail.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | [v2] irqchip/irq-mvebu-icu: Fix access to msi_data from irq_domain | expand |
diff --git a/drivers/irqchip/irq-mvebu-icu.c b/drivers/irqchip/irq-mvebu-icu.c index b337f6c05f18..4eebed39880a 100644 --- a/drivers/irqchip/irq-mvebu-icu.c +++ b/drivers/irqchip/irq-mvebu-icu.c @@ -68,7 +68,8 @@ static int mvebu_icu_translate(struct irq_domain *d, struct irq_fwspec *fwspec, unsigned long *hwirq, unsigned int *type) { unsigned int param_count = static_branch_unlikely(&legacy_bindings) ? 3 : 2; - struct mvebu_icu_msi_data *msi_data = d->host_data; + struct msi_domain_info *info = d->host_data; + struct mvebu_icu_msi_data *msi_data = info->chip_data; struct mvebu_icu *icu = msi_data->icu; /* Check the count of the parameters in dt */
Previously, we incorrectly cast irq_domain->host_data directly to mvebu_icu_msi_data. However, host_data actually stores a structure of type msi_domain_info. This incorrect assumption caused issues such as the thermal sensors of the CP110 platform malfunctioning. Specifically, the translation of the SEI interrupt to IRQ_TYPE_EDGE_RISING failed, preventing proper interrupt handling. The following error was observed: genirq: Setting trigger mode 4 for irq 85 failed (irq_chip_set_type_parent+0x0/0x34) armada_thermal f2400000.system-controller:thermal-sensor@70: Cannot request threaded IRQ 85 This commit resolves the issue by first casting host_data to msi_domain_info and then accessing the mvebu_icu_msi_data through msi_domain_info->chip_data. Cc: stable@vger.kernel.org Fixes: d929e4db22b6 ("irqchip/irq-mvebu-icu: Prepare for real per device MSI") Signed-off-by: Stefan Eichenberger <eichest@gmail.com> --- Changes in v2: * This patch is a v2 because it addresses the same issue as this patch: https://lore.kernel.org/all/20241217111623.92625-1-eichest@gmail.com/ * This time it addresses the underlying issue instead of adding a workaround (thanks to Thomas) drivers/irqchip/irq-mvebu-icu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)