linux-kernel - [PATCH] iommu/riscv: Fixup compile warning

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Message-Id: <20250103024616.3359159-1-guoren@kernel.org>
Date: Thu,  2 Jan 2025 21:46:16 -0500
From: guoren@...nel.org
To: tjeznach@...osinc.com
Cc: joro@...tes.org,
	will@...nel.org,
	robin.murphy@....com,
	paul.walmsley@...ive.com,
	palmer@...belt.com,
	baolu.lu@...ux.intel.com,
	zong.li@...ive.com,
	iommu@...ts.linux.dev,
	linux-riscv@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Guo Ren <guoren@...ux.alibaba.com>,
	Guo Ren <guoren@...nel.org>
Subject: [PATCH] iommu/riscv: Fixup compile warning

From: Guo Ren <guoren@...ux.alibaba.com>

When __BITS_PER_LONG == 32, size_t is defined as unsigned int rather
than unsigned long. Therefore, we should use size_t to avoid
type-checking errors.

Fixes: 488ffbf18171 ("iommu/riscv: Paging domain support")
Signed-off-by: Guo Ren <guoren@...ux.alibaba.com>
Signed-off-by: Guo Ren <guoren@...nel.org>
Cc: Tomasz Jeznach <tjeznach@...osinc.com>
---
 drivers/iommu/riscv/iommu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/riscv/iommu.c b/drivers/iommu/riscv/iommu.c
index 8a05def774bd..38d381164385 100644
--- a/drivers/iommu/riscv/iommu.c
+++ b/drivers/iommu/riscv/iommu.c
@@ -1270,7 +1270,7 @@ static phys_addr_t riscv_iommu_iova_to_phys(struct iommu_domain *iommu_domain,
 					    dma_addr_t iova)
 {
 	struct riscv_iommu_domain *domain = iommu_domain_to_riscv(iommu_domain);
-	unsigned long pte_size;
+	size_t pte_size;
 	unsigned long *ptr;
 
 	ptr = riscv_iommu_pte_fetch(domain, iova, &pte_size);
-- 
2.40.1