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iommu/ipmmu-vmsa: Break out domain allocation code

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Break out the domain allocation code into a separate function.

This is preparation for future code sharing.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Reviewed-by: Joerg Roedel <jroedel@suse.de>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Magnus Damm 2017-05-17 19:06:59 +09:00 committed by Joerg Roedel
parent 383fef5f4b
commit 8e73bf6591
1 changed files with 9 additions and 4 deletions
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13
drivers/iommu/ipmmu-vmsa.c
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@ -509,13 +509,10 @@ static irqreturn_t ipmmu_irq(int irq, void *dev)
* 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_alloc(unsigned type)
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);