Am 31.05.19 um 19:32 schrieb Laurentiu Tudor:

quoted

-----Original Message-----
From: Andreas Färber <afaerber@suse.de>
Sent: Friday, May 31, 2019 8:04 PM

Hello Laurentiu,

Am 31.05.19 um 18:46 schrieb Laurentiu Tudor:

quoted

quoted

-----Original Message-----
From: Andreas Färber <afaerber@suse.de>
Sent: Friday, May 31, 2019 7:15 PM

Hi Laurentiu,

Am 30.05.19 um 16:19 schrieb laurentiu.tudor@nxp.com:

quoted

This patch series contains several fixes in preparation for SMMU
support on NXP LS1043A and LS1046A chips. Once these get picked up,
I'll submit the actual SMMU enablement patches consisting in the
required device tree changes.

Have you thought through what will happen if this patch ordering is not
preserved? In particular, a user installing a future U-Boot update with
the DTB bits but booting a stable kernel without this patch series -
wouldn't that regress dpaa then for our customers?

These are fixes for issues that popped out after enabling SMMU.
I do not expect them to break anything.

That was not my question! You're missing my point: All your patches are
lacking a Fixes header in their commit message, for backporting them, to
avoid _your DT patches_ breaking the driver on stable branches!

It does appear that I'm missing your point. For sure, the DT updates solely will
break the kernel without these fixes but I'm not sure I understand how this
could happen.

In short, customers rarely run master branch. Kindly have your
colleagues explain stable branches to you in details.

With Fixes header I was referring to the syntax explained here:
https://www.kernel.org/doc/html/latest/process/submitting-patches.html#describe-your-changes
https://www.kernel.org/doc/html/latest/process/submitting-patches.html#using-reported-by-tested-by-reviewed-by-suggested-by-and-fixes

My plan was to share the kernel dts patches sometime after this series
makes it through.

That's fine. What I'm warning you is that seemingly your DT patches,
once in one of your LSDK U-Boot releases, will cause a regression for
distros like our SLES 15 SP1 unless these prereq kernel patches get
applied on the respective stable branches. Which will not happen
automatically unless you as patch author take the appropriate action
before they get merged.

Thanks,
Andreas

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