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iommu/tegra-smmu: Use devm_bitmap_zalloc when applicable 

'smmu->asids' is a bitmap. So use 'devm_kzalloc()' to simplify code,
improve the semantic of the code and avoid some open-coded arithmetic in
allocator arguments.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/2c0f4da80c3b5ef83299c651f69a563034c1c6cb.1632661557.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Christophe JAILLET 2021-09-26 15:07:18 +02:00 committed by Joerg Roedel
parent 5816b3e657
commit 89374244a4
1 changed files with 1 additions and 4 deletions
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5
drivers/iommu/tegra-smmu.c
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@ -1079,7 +1079,6 @@ struct tegra_smmu *tegra_smmu_probe(struct device *dev,
struct tegra_mc *mc)
{
struct tegra_smmu *smmu;
size_t size;
u32 value;
int err;
@ -1097,9 +1096,7 @@ struct tegra_smmu *tegra_smmu_probe(struct device *dev,
*/
mc->smmu = smmu;
size = BITS_TO_LONGS(soc->num_asids) * sizeof(long);
smmu->asids = devm_kzalloc(dev, size, GFP_KERNEL);
smmu->asids = devm_bitmap_zalloc(dev, soc->num_asids, GFP_KERNEL);
if (!smmu->asids)
return ERR_PTR(-ENOMEM);