[PATCH] docs: align with scripts/syscall.tbl migration

[Jonathan Corbet]

Jesung Yang <y.j3ms.n at gmail.com> writes:

> Update the documentation to reflect the migration of the following
> architectures to the centralized syscall table format:
>
>   arc, arm64, csky, hexagon, loongarch, nios2, openrisc, riscv
>
> As of commit 3db80c999debbad ("riscv: convert to generic syscall table"),
> these architectures no longer rely on include/uapi/asm-generic/unistd.h.
> Instead, syscall table headers (syscall_table_{32,64}.h) are generated by
> scripts/syscalltbl.sh based on entries in scripts/syscall.tbl, with ABIs
> specified in arch/*/kernel/Makefile.syscalls.
>
> For the convenience of developers working with older kernel versions, the
> original documentation is fully retained, with new sections added to
> cover the scripts/syscall.tbl approach.
>
> Verified with `make htmldocs`.
>
> Signed-off-by: Jesung Yang <y.j3ms.n at gmail.com>
> Link: https://lore.kernel.org/lkml/20240704143611.2979589-1-arnd@kernel.org

I'm not sure anybody has looked at this ... but nobody has complained,
anyway.

I have applied it but ... it seems like this document needs a more
thorough refresh rather than just adding some "actually, don't do it
that way on these architectures" notes?  Hopefully somebody will find
the energy to do that at some point.

Thanks,

jon