[PATCH 0/4] arm64: entry: rework user return handling

[Catalin Marinas]

On Mon, 2 Aug 2021 15:07:29 +0100, Mark Rutland wrote:
> These patches (based on v5.14-rc3) rework the arm64 entry code,
> converting the bulk of `ret_to_user` and `work_pending` assembly code to
> C. This simplifies the code, and ensure that for each exception there is
> a single assembly<->c transition, which may make it easier to handle
> backtracing in future if metadata is necessary.
> 
> The bulk of the additions are comments added in patch 2, which clarify
> the semantics of some helpers functions used during entry/exit.
> 
> [...]

Applied to arm64 (for-next/entry). There was a small conflict in entry.S
with the changes from the for-next/mte branch - clear_mte_async_tcf
macro call moved around. I also fixed the typos that Joey mentioned.

Please have a look to make sure everthing is still ok. Thanks!

[1/4] arm64: entry: consolidate entry/exit helpers
      https://git.kernel.org/arm64/c/46a2b02d232e
[2/4] arm64: entry: clarify entry/exit helpers
      https://git.kernel.org/arm64/c/bc29b71f53b1
[3/4] arm64: entry: move bulk of ret_to_user to C
      https://git.kernel.org/arm64/c/4d1c2ee2709f
[4/4] arm64: entry: call exit_to_user_mode() from C
      https://git.kernel.org/arm64/c/e130338eed5d

-- 
Catalin