Commit 16e3423f authored by Can Peng's avatar Can Peng Committed by Joerg Roedel
Browse files

iommu: simplify list initialization in iommu_create_device_direct_mappings() 



Use LIST_HEAD() to declare and initialize the 'mappings' list head in
iommu_create_device_direct_mappings() instead of separate declaration and
INIT_LIST_HEAD(). This simplifies the code by combining declaration and
initialization into a single idiomatic form, improving readability without
changing functionality.

Signed-off-by: default avatarCan Peng <pengcan@kylinos.cn>
Signed-off-by: default avatarJoerg Roedel <joerg.roedel@amd.com>
parent a8258ffe

drivers/iommu/iommu.c

+1 −2
Original line number Diff line number Diff line
@@ -1180,12 +1180,11 @@ static int iommu_create_device_direct_mappings(struct iommu_domain *domain, 
					       struct device *dev)

{

	struct iommu_resv_region *entry;

	struct list_head mappings;

	LIST_HEAD(mappings);

	unsigned long pg_size;

	int ret = 0;



	pg_size = domain->pgsize_bitmap ? 1UL << __ffs(domain->pgsize_bitmap) : 0;

	INIT_LIST_HEAD(&mappings);



	if (WARN_ON_ONCE(iommu_is_dma_domain(domain) && !pg_size))

		return -EINVAL;