Re: [PATCH v6 06/14] irqchip: gicv3-its: platform-msi: refactor its_pmsi_init() to prepare for ACPI

From: Hanjun Guo
Date: Wed Jan 04 2017 - 03:26:29 EST


On 2017/1/4 15:29, Tomasz Nowicki wrote:
On 04.01.2017 08:02, Hanjun Guo wrote:
Hi Tomasz,

On 2017/1/3 15:41, Tomasz Nowicki wrote:
Hi,

Can we merge patch 4 & 6 into one patch so that we keep refactoring part
as one piece ? I do not see a reason to keep them separate or have patch
5 in between. You can refactor what needs to be refactored, add
necessary functions to iort.c and then support ACPI for
irq-gic-v3-its-platform-msi.c

There are two functions here,
- retrieve the dev id from IORT which was DT based only;

- init the platform msi domain from MADT;

For each of them split it into two steps,
- refactor the code for ACPI later and it's easy for review
because wen can easily to figure out it has functional
change or not

- add ACPI functionality

Does it make sense?

It is up to Marc, but personally I prefer:
1. Refactor dev id retrieving and init function in one patch and
highlight no functional changes in changelog
2. Crate necessary infrastructure in iort.c
3. Then add ACPI support to irq-gic-v3-its-platform-msi.c

I have no strong preferences, and it's easy to do so as just
need to squash/reorder the patches.

Marc, Lorenzo, could you give some suggestions here?

Thanks
Hanjun