iommu/io-pgtable: Use size_t return type for all foo_unmap
Unmap returns a size_t all throughout the IOMMU framework. Make io-pgtable match this convention. Moreover, there isn't a need to have a signed int return type as we return 0 in case of failures. Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org> Acked-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
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@ -357,8 +357,8 @@ static bool arm_v7s_pte_is_cont(arm_v7s_iopte pte, int lvl)
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return false;
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}
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static int __arm_v7s_unmap(struct arm_v7s_io_pgtable *, unsigned long,
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size_t, int, arm_v7s_iopte *);
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static size_t __arm_v7s_unmap(struct arm_v7s_io_pgtable *, unsigned long,
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size_t, int, arm_v7s_iopte *);
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static int arm_v7s_init_pte(struct arm_v7s_io_pgtable *data,
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unsigned long iova, phys_addr_t paddr, int prot,
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@ -541,9 +541,10 @@ static arm_v7s_iopte arm_v7s_split_cont(struct arm_v7s_io_pgtable *data,
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return pte;
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}
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static int arm_v7s_split_blk_unmap(struct arm_v7s_io_pgtable *data,
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unsigned long iova, size_t size,
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arm_v7s_iopte blk_pte, arm_v7s_iopte *ptep)
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static size_t arm_v7s_split_blk_unmap(struct arm_v7s_io_pgtable *data,
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unsigned long iova, size_t size,
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arm_v7s_iopte blk_pte,
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arm_v7s_iopte *ptep)
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{
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struct io_pgtable_cfg *cfg = &data->iop.cfg;
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arm_v7s_iopte pte, *tablep;
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@ -584,9 +585,9 @@ static int arm_v7s_split_blk_unmap(struct arm_v7s_io_pgtable *data,
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return size;
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}
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static int __arm_v7s_unmap(struct arm_v7s_io_pgtable *data,
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unsigned long iova, size_t size, int lvl,
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arm_v7s_iopte *ptep)
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static size_t __arm_v7s_unmap(struct arm_v7s_io_pgtable *data,
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unsigned long iova, size_t size, int lvl,
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arm_v7s_iopte *ptep)
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{
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arm_v7s_iopte pte[ARM_V7S_CONT_PAGES];
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struct io_pgtable *iop = &data->iop;
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@ -656,8 +657,8 @@ static int __arm_v7s_unmap(struct arm_v7s_io_pgtable *data,
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return __arm_v7s_unmap(data, iova, size, lvl + 1, ptep);
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}
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static int arm_v7s_unmap(struct io_pgtable_ops *ops, unsigned long iova,
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size_t size)
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static size_t arm_v7s_unmap(struct io_pgtable_ops *ops, unsigned long iova,
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size_t size)
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{
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struct arm_v7s_io_pgtable *data = io_pgtable_ops_to_data(ops);
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@ -268,9 +268,9 @@ static void __arm_lpae_set_pte(arm_lpae_iopte *ptep, arm_lpae_iopte pte,
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__arm_lpae_sync_pte(ptep, cfg);
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}
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static int __arm_lpae_unmap(struct arm_lpae_io_pgtable *data,
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unsigned long iova, size_t size, int lvl,
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arm_lpae_iopte *ptep);
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static size_t __arm_lpae_unmap(struct arm_lpae_io_pgtable *data,
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unsigned long iova, size_t size, int lvl,
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arm_lpae_iopte *ptep);
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static void __arm_lpae_init_pte(struct arm_lpae_io_pgtable *data,
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phys_addr_t paddr, arm_lpae_iopte prot,
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@ -506,10 +506,10 @@ static void arm_lpae_free_pgtable(struct io_pgtable *iop)
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kfree(data);
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}
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static int arm_lpae_split_blk_unmap(struct arm_lpae_io_pgtable *data,
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unsigned long iova, size_t size,
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arm_lpae_iopte blk_pte, int lvl,
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arm_lpae_iopte *ptep)
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static size_t arm_lpae_split_blk_unmap(struct arm_lpae_io_pgtable *data,
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unsigned long iova, size_t size,
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arm_lpae_iopte blk_pte, int lvl,
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arm_lpae_iopte *ptep)
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{
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struct io_pgtable_cfg *cfg = &data->iop.cfg;
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arm_lpae_iopte pte, *tablep;
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@ -560,9 +560,9 @@ static int arm_lpae_split_blk_unmap(struct arm_lpae_io_pgtable *data,
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return size;
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}
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static int __arm_lpae_unmap(struct arm_lpae_io_pgtable *data,
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unsigned long iova, size_t size, int lvl,
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arm_lpae_iopte *ptep)
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static size_t __arm_lpae_unmap(struct arm_lpae_io_pgtable *data,
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unsigned long iova, size_t size, int lvl,
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arm_lpae_iopte *ptep)
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{
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arm_lpae_iopte pte;
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struct io_pgtable *iop = &data->iop;
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@ -606,8 +606,8 @@ static int __arm_lpae_unmap(struct arm_lpae_io_pgtable *data,
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return __arm_lpae_unmap(data, iova, size, lvl + 1, ptep);
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}
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static int arm_lpae_unmap(struct io_pgtable_ops *ops, unsigned long iova,
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size_t size)
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static size_t arm_lpae_unmap(struct io_pgtable_ops *ops, unsigned long iova,
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size_t size)
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{
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struct arm_lpae_io_pgtable *data = io_pgtable_ops_to_data(ops);
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arm_lpae_iopte *ptep = data->pgd;
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@ -119,8 +119,8 @@ struct io_pgtable_cfg {
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struct io_pgtable_ops {
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int (*map)(struct io_pgtable_ops *ops, unsigned long iova,
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phys_addr_t paddr, size_t size, int prot);
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int (*unmap)(struct io_pgtable_ops *ops, unsigned long iova,
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size_t size);
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size_t (*unmap)(struct io_pgtable_ops *ops, unsigned long iova,
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size_t size);
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phys_addr_t (*iova_to_phys)(struct io_pgtable_ops *ops,
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unsigned long iova);
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};
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