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Date: Fri, 8 Oct 2021 08:04:32 +0800 From: "Longpeng(Mike)" <longpeng2@...wei.com> To: <baolu.lu@...ux.intel.com>, <dwmw2@...radead.org>, <will@...nel.org>, <joro@...tes.org> CC: <iommu@...ts.linux-foundation.org>, <linux-kernel@...r.kernel.org>, <arei.gonglei@...wei.com>, "Longpeng(Mike)" <longpeng2@...wei.com> Subject: [PATCH v3 1/2] iommu/vt-d: convert the return type of first_pte_in_page to bool first_pte_in_page() returns boolean value, so let's convert its return type to bool. In addition, use 'IS_ALIGNED' to make the code more readable and neater. Signed-off-by: Longpeng(Mike) <longpeng2@...wei.com> --- include/linux/intel-iommu.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h index 05a65eb..9bcabc7 100644 --- a/include/linux/intel-iommu.h +++ b/include/linux/intel-iommu.h @@ -708,9 +708,9 @@ static inline bool dma_pte_superpage(struct dma_pte *pte) return (pte->val & DMA_PTE_LARGE_PAGE); } -static inline int first_pte_in_page(struct dma_pte *pte) +static inline bool first_pte_in_page(struct dma_pte *pte) { - return !((unsigned long)pte & ~VTD_PAGE_MASK); + return IS_ALIGNED((unsigned long)pte, VTD_PAGE_SIZE); } extern struct dmar_drhd_unit * dmar_find_matched_drhd_unit(struct pci_dev *dev); -- 1.8.3.1
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