iommu/ipmmu-vmsa: Make IPMMU_CTX_MAX unsigned

Make the IPMMU_CTX_MAX constant unsigned, to match the type of
ipmmu_features.number_of_contexts.

This allows to use plain min() instead of type-casting min_t().

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c
index f2061bd..87acf86 100644 (file)
--- a/drivers/iommu/ipmmu-vmsa.c
+++ b/drivers/iommu/ipmmu-vmsa.c
@@ -36,7 +36,7 @@
 #define arm_iommu_detach_device(...)   do {} while (0)
 #endif
 
-#define IPMMU_CTX_MAX 8
+#define IPMMU_CTX_MAX 8U
 
 struct ipmmu_features {
        bool use_ns_alias_offset;
@@ -1060,8 +1060,7 @@ static int ipmmu_probe(struct platform_device *pdev)
        if (mmu->features->use_ns_alias_offset)
                mmu->base += IM_NS_ALIAS_OFFSET;
 
-       mmu->num_ctx = min_t(unsigned int, IPMMU_CTX_MAX,
-                            mmu->features->number_of_contexts);
+       mmu->num_ctx = min(IPMMU_CTX_MAX, mmu->features->number_of_contexts);
 
        irq = platform_get_irq(pdev, 0);