From: Hanjun Guo <guohanjun@huawei.com>
To: Marc Zyngier <marc.zyngier@arm.com>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: <linux-acpi@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Greg KH <gregkh@linuxfoundation.org>,
Tomasz Nowicki <tn@semihalf.com>, Ma Jun <majun258@huawei.com>,
Kefeng Wang <wangkefeng.wang@huawei.com>,
"Agustin Vega-Frias" <agustinv@codeaurora.org>,
Sinan Kaya <okaya@codeaurora.org>,
"G Gregory" <graeme.gregory@linaro.org>,
Charles Garcia-Tobin <charles.garcia-tobin@arm.com>,
<huxinwei@huawei.com>, <yimin@huawei.com>, <linuxarm@huawei.com>,
Hanjun Guo <hanjun.guo@linaro.org>
Subject: [PATCH v4 08/11] ACPI: ARM64: IORT: rework iort_node_get_id()
Date: Tue, 29 Nov 2016 21:39:36 +0800 [thread overview]
Message-ID: <1480426779-31387-9-git-send-email-guohanjun@huawei.com> (raw)
In-Reply-To: <1480426779-31387-1-git-send-email-guohanjun@huawei.com>
From: Hanjun Guo <hanjun.guo@linaro.org>
iort_node_get_id() has two output, one is the mapped ids,
the other is the referenced parent node which is returned
from the function.
For now we need a API just return its parent node for
single mapping, so just update this function slightly then
reuse it later.
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
---
drivers/acpi/arm64/iort.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
index 7b78282a..788f445 100644
--- a/drivers/acpi/arm64/iort.c
+++ b/drivers/acpi/arm64/iort.c
@@ -347,7 +347,8 @@ struct acpi_iort_node *iort_node_get_id(struct acpi_iort_node *node,
if (map[index].flags & ACPI_IORT_ID_SINGLE_MAPPING) {
if (node->type == ACPI_IORT_NODE_NAMED_COMPONENT ||
node->type == ACPI_IORT_NODE_PCI_ROOT_COMPLEX) {
- *id_out = map[index].output_base;
+ if (id_out)
+ *id_out = map[index].output_base;
return parent;
}
}
--
1.7.12.4
next prev parent reply other threads:[~2016-11-29 13:44 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-29 13:39 [PATCH v4 00/11] ACPI platform MSI support Hanjun Guo
2016-11-29 13:39 ` [PATCH v4 01/11] ACPI: ARM64: IORT: minor cleanup for iort_match_node_callback() Hanjun Guo
2016-11-29 13:39 ` [PATCH v4 02/11] irqchip: gic-v3-its: keep the head file include in alphabetic order Hanjun Guo
2016-11-29 13:39 ` [PATCH v4 03/11] ACPI: ARM64: IORT: add missing comment for iort_dev_find_its_id() Hanjun Guo
2016-11-29 13:39 ` [PATCH v4 04/11] irqchip: gicv3-its: platform-msi: refactor its_pmsi_prepare() Hanjun Guo
2016-11-29 13:39 ` [PATCH v4 05/11] ACPI: platform-msi: retrieve dev id from IORT Hanjun Guo
2016-11-29 13:39 ` [PATCH v4 06/11] irqchip: gicv3-its: platform-msi: refactor its_pmsi_init() to prepare for ACPI Hanjun Guo
2016-11-29 13:39 ` [PATCH v4 07/11] irqchip: gicv3-its: platform-msi: scan MADT to create platform msi domain Hanjun Guo
2016-11-29 13:39 ` Hanjun Guo [this message]
2016-11-29 13:39 ` [PATCH v4 09/11] ACPI: platform: setup MSI domain for ACPI based platform device Hanjun Guo
2016-11-29 13:39 ` [PATCH v4 10/11] ACPI: ARM64: IORT: rework iort_node_get_id() for NC->SMMU->ITS case Hanjun Guo
2016-11-29 13:39 ` [PATCH v4 11/11] msi: platform: make platform_msi_create_device_domain() ACPI aware Hanjun Guo
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