Commit 89374244 authored by Christophe JAILLET's avatar Christophe JAILLET Committed by Joerg Roedel
Browse files

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: default avatarChristophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: default avatarThierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/2c0f4da80c3b5ef83299c651f69a563034c1c6cb.1632661557.git.christophe.jaillet@wanadoo.fr


Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 5816b3e6

drivers/iommu/tegra-smmu.c

+1 −4
Original line number Diff line number Diff line
@@ -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);