linux-kernel - Re: [GIT PULL] RISC-V Patches for the 6.6 Merge Window, Part 2

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Message-ID: <a21c80c1-533c-5167-8b0b-a6bc4953eec8@gmail.com>
Date:   Sat, 9 Sep 2023 00:27:56 +0900
From:   Akira Yokosawa <akiyks@...il.com>
To:     palmer@...osinc.com
Cc:     linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org,
        torvalds@...ux-foundation.org,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Akira Yokosawa <akiyks@...il.com>
Subject: Re: [GIT PULL] RISC-V Patches for the 6.6 Merge Window, Part 2

On Fri, 08 Sep 2023 07:55:57 -0700 (PDT), Palmer Dabbelt wrote:
> merged tag 'riscv-for-linus-6.6-mw1'
> The following changes since commit e0152e7481c6c63764d6ea8ee41af5cf9dfac5e9:
> 
>   Merge tag 'riscv-for-linus-6.6-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux (2023-09-01 08:09:48 -0700)
> 
> are available in the Git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git tags/riscv-for-linus-6.6-mw2
> 
> for you to fetch changes up to accb14aa1e699d11b8172283e8cb82a695b96c85:
> 
>   soc: renesas: Kconfig: For ARCH_R9A07G043 select the required configs if dependencies are met (2023-09-06 07:20:13 -0700)
> 
> ----------------------------------------------------------------
> RISC-V Patches for the 6.6 Merge Window, Part 2
> 
> * The kernel now dynamically probes for misaligned access speed, as
>   opposed to relying on a table of known implementations.
> * Support for non-coherent devices on systems using the Andes AX45MP
>   core, including the RZ/Five SoCs.
> * Support for the V extension in ptrace(), again.
> * Support for KASLR.
> * Support for the BPF prog pack allocator in RISC-V.
> * A handful of bug fixes and cleanups.
> 
> ----------------------------------------------------------------
> The shortlog looks correct here, but the diffstat includes all sorts of files I
> wasn't expecting.  I'm not entirely sure what's going on here, but I have a
> little bit of a complex set of base branches here as the BPF changes have a
> dependency on some arm64 BPF work and IIRC that sort of thing sometimes makes
> diffstat go off the rails.  So hopefully that's just it.

Hi Palmer,
It looks like you have ignored Stephen Rothwell's kind investigation at
https://lore.kernel.org/linux-next/20230908082625.487d39c4@canb.auug.org.au/.

Excerpt of Stephen's analysis:

> Actually, it looks like the merge
> 
>   2bf3c0292f35 ("Merge patch series "RISC-V: Probe for misaligned access speed"")
> 
> in the risc-v tree was resolved very badly and dragged a lot of stuff
> back in.

[...]

> When I redid that merge:
> 
> $ git diff HEAD^..HEAD
>  Documentation/riscv/hwprobe.rst      |  11 ++--
>  arch/riscv/errata/thead/errata.c     |   8 ---
>  arch/riscv/include/asm/alternative.h |   5 --
>  arch/riscv/include/asm/cpufeature.h  |   2 +
>  arch/riscv/kernel/Makefile           |   1 +
>  arch/riscv/kernel/alternative.c      |  19 -------
>  arch/riscv/kernel/copy-unaligned.S   |  71 ++++++++++++++++++++++++
>  arch/riscv/kernel/copy-unaligned.h   |  13 +++++
>  arch/riscv/kernel/cpufeature.c       | 104 +++++++++++++++++++++++++++++++++++
>  arch/riscv/kernel/smpboot.c          |   3 +-
>  10 files changed, 198 insertions(+), 39 deletions(-)
> 
> So, the risc-v tree needs to be cleaned up.

Palmer, you are requesting pull without the suggested cleanup.

I'd really like this to be cleanly sorted out.

Of course, it's up to Linus whether or not to pull as it is...

        Thanks, Akira