linux-kernel - [PATCH v7 04/07] iommu/ipmmu-vmsa: Break out domain allocation code

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Message-Id: <148885664390.28553.13152016302789412479.sendpatchset@little-apple>
Date:   Tue, 07 Mar 2017 12:17:23 +0900
From:   Magnus Damm <magnus.damm@...il.com>
To:     joro@...tes.org
Cc:     laurent.pinchart+renesas@...asonboard.com, geert+renesas@...der.be,
        linux-kernel@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
        iommu@...ts.linux-foundation.org, horms+renesas@...ge.net.au,
        Magnus Damm <magnus.damm@...il.com>, robin.murphy@....com,
        m.szyprowski@...sung.com
Subject: [PATCH v7 04/07] iommu/ipmmu-vmsa: Break out domain allocation code

From: Magnus Damm <damm+renesas@...nsource.se>

Break out the domain allocation code into a separate function.
This is preparation for future code sharing.

Signed-off-by: Magnus Damm <damm+renesas@...nsource.se>
Reviewed-by: Joerg Roedel <jroedel@...e.de>
---

 Changes since V6:
 - None

 drivers/iommu/ipmmu-vmsa.c |   13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

--- 0006/drivers/iommu/ipmmu-vmsa.c
+++ work/drivers/iommu/ipmmu-vmsa.c	2017-03-06 18:34:59.520607110 +0900
@@ -509,13 +509,10 @@ static irqreturn_t ipmmu_irq(int irq, vo
  * IOMMU Operations
  */
 
-static struct iommu_domain *ipmmu_domain_alloc(unsigned type)
+static struct iommu_domain *__ipmmu_domain_alloc(unsigned type)
 {
 	struct ipmmu_vmsa_domain *domain;
 
-	if (type != IOMMU_DOMAIN_UNMANAGED)
-		return NULL;
-
 	domain = kzalloc(sizeof(*domain), GFP_KERNEL);
 	if (!domain)
 		return NULL;
@@ -525,6 +522,14 @@ static struct iommu_domain *ipmmu_domain
 	return &domain->io_domain;
 }
 
+static struct iommu_domain *ipmmu_domain_alloc(unsigned type)
+{
+	if (type != IOMMU_DOMAIN_UNMANAGED)
+		return NULL;
+
+	return __ipmmu_domain_alloc(type);
+}
+
 static void ipmmu_domain_free(struct iommu_domain *io_domain)
 {
 	struct ipmmu_vmsa_domain *domain = to_vmsa_domain(io_domain);