From: Sinan Kaya <okaya@codeaurora.org>
To: linux-acpi@vger.kernel.org, timur@codeaurora.org,
cov@codeaurora.org, jcm@redhat.com
Cc: Sinan Kaya <okaya@codeaurora.org>
Subject: [PATCH V2] acpi: add support for extended IRQ to PCI link
Date: Thu, 12 Nov 2015 01:14:41 -0500 [thread overview]
Message-ID: <1447308882-29634-1-git-send-email-okaya@codeaurora.org> (raw)
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
next reply other threads:[~2015-11-12 6:14 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-12 6:14 Sinan Kaya [this message]
2015-11-12 6:14 ` [PATCH] acpi: add support for extended IRQ to PCI link Sinan Kaya
2015-11-12 9:56 ` Andy Shevchenko
2015-11-12 15:04 ` Sinan Kaya
2015-11-12 15:17 ` Andy Shevchenko
2015-11-12 15:54 ` okaya
2015-11-12 15:58 ` Timur Tabi
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