linux-kernel - [PATCH v4 3/6] iommu/ipmmu-vmsa: Make IPMMU_CTX

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Date:   Mon, 27 May 2019 13:52:50 +0200
From:   Geert Uytterhoeven <geert+renesas@...der.be>
To:     Joerg Roedel <joro@...tes.org>,
        Magnus Damm <damm+renesas@...nsource.se>
Cc:     Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
        iommu@...ts.linux-foundation.org,
        linux-renesas-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Geert Uytterhoeven <geert+renesas@...der.be>
Subject: [PATCH v4 3/6] 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@...der.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Reviewed-by: Simon Horman <horms+renesas@...ge.net.au>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
---
v4:
  - Add Reviewed-by, Tested-by,

v3:
  - Add Reviewed-by,

v2:
  - Add Reviewed-by.
---
 drivers/iommu/ipmmu-vmsa.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c
index f2061bd1dc7b8852..87acf86f295fac0d 100644
--- 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);
 
-- 
2.17.1