linux-kernel - Re: [PATCH 09/12] riscv: extable: add `type` and `data` fields

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Date:   Wed, 05 Jan 2022 19:21:26 -0800 (PST)
From:   Palmer Dabbelt <palmer@...belt.com>
To:     mark.rutland@....com
CC:     jszhang3@...l.ustc.edu.cn, tglx@...utronix.de,
        Paul Walmsley <paul.walmsley@...ive.com>,
        aou@...s.berkeley.edu, bjorn@...nel.org, ast@...nel.org,
        daniel@...earbox.net, andrii@...nel.org, john.fastabend@...il.com,
        kpsingh@...nel.org, masahiroy@...nel.org, michal.lkml@...kovi.net,
        ndesaulniers@...gle.com, wangkefeng.wang@...wei.com,
        tongtiangen@...wei.com, linux-riscv@...ts.infradead.org,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        bpf@...r.kernel.org, linux-kbuild@...r.kernel.org
Subject:     Re: [PATCH 09/12] riscv: extable: add `type` and `data` fields

On Thu, 18 Nov 2021 07:21:55 PST (-0800), mark.rutland@....com wrote:
> On Thu, Nov 18, 2021 at 07:42:49PM +0800, Jisheng Zhang wrote:
>> On Thu, 18 Nov 2021 19:26:05 +0800 Jisheng Zhang wrote:
>>
>> > From: Jisheng Zhang <jszhang@...nel.org>
>> >
>> > This is a riscv port of commit d6e2cc564775("arm64: extable: add `type`
>> > and `data` fields").
>> >
>> > We will add specialized handlers for fixups, the `type` field is for
>> > fixup handler type, the `data` field is used to pass specific data to
>> > each handler, for example register numbers.
>> >
>> > Signed-off-by: Jisheng Zhang <jszhang@...nel.org>
>
>> > diff --git a/scripts/sorttable.c b/scripts/sorttable.c
>> > index 0c031e47a419..5b5472b543f5 100644
>> > --- a/scripts/sorttable.c
>> > +++ b/scripts/sorttable.c
>> > @@ -376,9 +376,11 @@ static int do_file(char const *const fname, void *addr)
>> >  	case EM_PARISC:
>> >  	case EM_PPC:
>> >  	case EM_PPC64:
>> > -	case EM_RISCV:
>> >  		custom_sort = sort_relative_table;
>> >  		break;
>> > +	case EM_RISCV:
>> > +		custom_sort = arm64_sort_relative_table;
>>
>> Hi Mark, Thomas,
>>
>> x86 and arm64 version of sort_relative_table routine are the same, I want to
>> unify them, and then use the common function for riscv, but I'm not sure
>> which name is better. Could you please suggest?
>
> I sent a patch last week which unifies them as
> sort_relative_table_with_data():
>
>   https://lore.kernel.org/linux-arm-kernel/20211108114220.32796-1-mark.rutland@arm.com/
>
> Thomas, are you happy with that patch?
>
> With your ack it could go via the riscv tree for v5.17 as a preparatory
> cleanup in this series.
>
> Maybe we could get it in as a cleanup for v5.16-rc{2,3} ?

I don't see anything on that thread, and looks like last time I had to 
touch sorttable I just took it via the RISC-V tree.  I went ahead and 
put Mark's patch, along with this patch set, on my for-next.  I had to 
fix up a few minor issues, so LMK if anything went off the rails.

Thanks!