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| author | Zhen Lei <thunder.leizhen@huawei.com> | 2021-08-18 16:04:51 +0800 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2021-10-04 12:21:13 +0100 |
| commit | 59d9bd727495b13292dedee2c6c8c5d80de4d16f (patch) | |
| tree | 36b658914ff2f5ba651f449a3778dc4a6d7b4a46 /drivers/iommu/amd | |
| parent | 93f9f7958f12a1703799442011dd5f18db893c13 (diff) | |
| download | linux-59d9bd727495b13292dedee2c6c8c5d80de4d16f.tar.gz | |
iommu/arm-smmu-v3: Properly handle the return value of arm_smmu_cmdq_build_cmd()
1. Build command CMD_SYNC cannot fail. So the return value can be ignored.
2. The arm_smmu_cmdq_build_cmd() almost never fails, the addition of
"unlikely()" can optimize the instruction pipeline.
3. Check the return value in arm_smmu_cmdq_batch_add().
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20210818080452.2079-2-thunder.leizhen@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/iommu/amd')
0 files changed, 0 insertions, 0 deletions