The ACPI compiler uses the extended format when used interrupt numbers are greater than 256. The PCI link code currently only supports simple interrupt format. The IRQ numbers are represented using 32 bits when extended IRQ syntax. This patch changes the interrupt number type to 32 bits and places an upper limit of 1020 as possible interrupt id. 1020 is the maximum interrupt ID that can be assigned to an ARM SPI interrupt according to ARM architecture. Additional checks have been placed to prevent out of bounds writes. Changes from V1: (https://lkml.org/lkml/2015/11/8/162) * change the commit text to include 1020 magic interrupt number limitation * cleanup multiple levels of if statements Sinan Kaya (1): acpi: add support for extended IRQ to PCI link drivers/acpi/pci_link.c | 28 +++++++++++++++++----------- 1 file changed, 17 insertions(+), 11 deletions(-) -- Qualcomm Technologies, Inc. on behalf of Qualcomm Innovation Center, Inc. Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
