Re: [PATCH v12 00/13] arm64: entry: Convert to Generic Entry

[Will Deacon <will@kernel.org>]

On Wed, Feb 04, 2026 at 11:39:34AM +0100, Thomas Gleixner wrote:
> On Wed, Feb 04 2026 at 09:28, Jinjie Ruan wrote:
> > On 2026/2/3 22:16, Thomas Gleixner wrote:
> >> On Tue, Feb 03 2026 at 21:37, Jinjie Ruan wrote:
> >>> Currently, x86, Riscv, Loongarch use the Generic Entry which makes
> >>> maintainers' work easier and codes more elegant. arm64 has already
> >>> successfully switched to the Generic IRQ Entry in commit
> >>> b3cf07851b6c ("arm64: entry: Switch to generic IRQ entry"), it is
> >>> time to completely convert arm64 to Generic Entry.
> >>>
> >>> The goal is to bring arm64 in line with other architectures that already
> >>> use the generic entry infrastructure, reducing duplicated code and
> >>> making it easier to share future changes in entry/exit paths, such as
> >>> "Syscall User Dispatch".
> >>>
> >>> This patch set is rebased on "sched/core". And the performance
> >> 
> >> Why are you using sched/core, which contains a lot of unrelated
> >> changes. core/entry is the one which has the prerequisites and nothing
> >> else....
> >
> > By the way，it looks like core/entry and arm64 for-next/entry have
> > diverged: the first three patches of this series are already in arm64
> > for-next/entry but missing from core/entry.
> > Perhaps the two branches should be reconciled so that both contain the
> > same baseline.
> 
> The first three patches of this series are ARM specific and have nothing
> to do with the queued core/entry changes in tip. They are independent of
> each other and these three ARM64 changes have no business in my tree.
> 
> If the ARM64 folks want to apply the rest of your series then they have
> to pull the core/entry branch into their for-next/core branch first so
> the whole thing builds.
> 
> But given that the merge window opens on sunday, this is probably moot
> anyway and the rest of this series can go on top of rc1 in the ARM64
> tree w/o any further complications.

Yup, the rest of the series (beyond what we've both queued) also needs
some more review so this is all post -rc1 material.

In the meantime, thanks for picking up the generic bits.

Cheers,

Will