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iommu/vt-d: Convert the return type of first_pte_in_page to bool

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The first_pte_in_page() returns true or false, 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@huawei.com>
Link: https://lore.kernel.org/r/20211008000433.1115-1-longpeng2@huawei.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20211014053839.727419-9-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Longpeng(Mike) 2021-10-14 13:38:38 +08:00 • committed by Joerg Roedel
parent 00ecd54013
commit 37c8041a81
1 changed files with 2 additions and 2 deletions
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4
include/linux/intel-iommu.h
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@ -705,9 +705,9 @@ 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);