riscv: Clarify RISCV_ALTERNATIVE help text

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Clarify RISCV_ALTERNATIVE's help text by pointing out that code
patching is not only done at boot time, but also module load time.
Also point out that this is the minimal possible overhead.

Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20230224154601.88163-2-ajones@ventanamicro.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

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Andrew Jones 2023-02-24 16:45:56 +01:00 • committed by Palmer Dabbelt

parent fe15c26ee2

commit 099122af4e

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