[PATCH 15/25] riscv: move the XOR code to lib/raid/

[Eric Biggers]

On Thu, Feb 26, 2026 at 07:10:27AM -0800, Christoph Hellwig wrote:
> Move the optimized XOR into lib/raid and include it it in xor.ko
> instead of always building it into the main kernel image.
> 
> Signed-off-by: Christoph Hellwig <hch at lst.de>
> ---
>  arch/riscv/include/asm/xor.h                 | 54 +------------------
>  arch/riscv/lib/Makefile                      |  1 -
>  lib/raid/xor/Makefile                        |  1 +
>  lib/raid/xor/riscv/xor-glue.c                | 56 ++++++++++++++++++++
>  {arch/riscv/lib => lib/raid/xor/riscv}/xor.S |  0

The EXPORT_SYMBOL() statements in xor.S can be removed, since the
functions are now located in the same module as their callers.

- Eric