[PATCH v5 1/3] iommu/arm-smmu-v3: Factor out CMDQ batch force-sync conditions

[Nicolin Chen]

On Thu, Jul 09, 2026 at 09:56:07AM +0000, Ashish Mhetre wrote:
> From: Nicolin Chen <nicolinc at nvidia.com>
> 
> arm_smmu_cmdq_batch_add_cmd_p() carries two distinct reasons for
> flushing the current batch with a CMD_SYNC before appending the
> new command:
> 
>   - The batch's pre-assigned cmdq does not support the new command.
>   - The Arm erratum 2812531 workaround (ARM_SMMU_OPT_CMDQ_FORCE_SYNC)
>     forces a SYNC at one entry before the batch is full.
> 
> Lift those checks into a new arm_smmu_cmdq_batch_force_sync() helper
> so that adding another force-sync condition becomes a one-line
> addition. No functional change.

Patch is fine, but you're missing the cover-letter and changelogs.

Nicolin