Re: [PATCH] iommu/arm-smmu-v3: Fix soft lockup triggered by arm_smmu_mm_invalidate_range

From: Will Deacon
Date: Mon Sep 18 2023 - 05:24:28 EST


On Mon, Sep 18, 2023 at 01:33:31PM +0800, Baolu Lu wrote:
> On 9/15/23 3:43 PM, Nicolin Chen wrote:
> > I found this patch cannot be applied to v6.6-rc1 due to conflicts
> > with some new commits that were merged during the previous cycle.
> >
> > I can redo a version rebasing on the v6.6-rc1, yet the new version
> > won't apply to earlier kernel stable trees. Is there a way to make
> > it happen that both mainline and earlier trees can have this fix?
>
> Normally, bug fixes should first be submitted to the mainline kernel
> (also known as Linus's tree). If you use the "Fixes" and "CC-stable"
> tags, the patch will be automatically picked up for the appropriate
> stable kernels.
>
> If the patch does not apply to any stable kernel that you want it to be
> there, you can then post a back-ported patch to the stable mailing list.
>
> When doing so, it's better to include the following information:
>
> - The mainline commit ID of the back-ported patch.
> - The versions of the stable kernel(s) to which you want the back-ported
> patch to be applied.
>
> Hope this helps.

Yup, please send a version against -rc1 so we can land that first.

Will