diff options
| author | John Garry <john.garry@huawei.com> | 2021-08-11 23:49:26 +0800 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2021-08-13 14:26:06 +0100 |
| commit | fac956710ab0812f9e395e9f7a27da551412830f (patch) | |
| tree | 453a56763d17cbc81a975d11e7a8721d96d22e35 /drivers/net/ethernet/intel/ixgbe | |
| parent | 2cbeaf3f36eb300cae1f344e125162c42fb091a3 (diff) | |
iommu/arm-smmu-v3: Stop pre-zeroing batch commands
Pre-zeroing the batched commands structure is inefficient, as individual
commands are zeroed later in arm_smmu_cmdq_build_cmd(). The size is quite
large and commonly most commands won't even be used:
struct arm_smmu_cmdq_batch cmds = {};
345c: 52800001 mov w1, #0x0 // #0
3460: d2808102 mov x2, #0x408 // #1032
3464: 910143a0 add x0, x29, #0x50
3468: 94000000 bl 0 <memset>
Stop pre-zeroing the complete structure and only zero the num member.
Signed-off-by: John Garry <john.garry@huawei.com>
Link: https://lore.kernel.org/r/1628696966-88386-1-git-send-email-john.garry@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/intel/ixgbe')
0 files changed, 0 insertions, 0 deletions