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Re: [PATCH 00/32] x86/msr: Drop 32-bit MSR interfaces
- To: Arnd Bergmann <arnd@xxxxxxxx>
- From: Ingo Molnar <mingo@xxxxxxxxxx>
- Date: Mon, 29 Jun 2026 13:19:43 +0200
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- Delivery-date: Mon, 29 Jun 2026 11:20:22 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
* Arnd Bergmann <arnd@xxxxxxxx> wrote:
> >>> Note that most patches of this series are independent from each other.
> >>> Only the patches removing a specific interface (patches 7, 15, 26 and
> >>> 30) and the last two patches of the series depend on all previous
> >>> patches.
> >>
> >> It looks like you are touching most files twice or more here, to
> >> first convert from rdmsr to rdmsrq and then to change the
> >> two-argument rdmsrq() macro to a single-argument inline. If you
> >> introduce the inline version of rdmsrq() first, you should be
> >> able to skip the second step (patch 31) as they could be able
> >> to coexist.
> >
> > I've discussed how to structure the series with Ingo Molnar before [1]. The
> > current approach was his preference.
>
> Ok.
Note that the individual patches are IMO significantly easier to review
through the actual 32-bit => 64-bit variable assignment changes done
in isolation (which sometimes include minor cleanups), while
the Coccinelle semantic patch:
{ a(b,c) => c = a(b) }
which changes both the function signature and the order of terms as
well, is just a single add-on treewide patch.
Thanks,
Ingo
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