[PATCH 2/7] x86: mtrr: Do not clear the unused ones in mtrr_commit()

[Simon Glass]

On Sat, 31 Jul 2021 at 02:45, Bin Meng <bmeng.cn at gmail.com> wrote:
>
> Current mtrr_commit() logic assumes that MTRR MSRs are programmed
> consecutively from index 0 to its maximum number, and whenever it
> detects an unused one, it clears all other MTRRs starting from that
> one. However this may not always be the case.
>
> In fact, the clear is not much helpful because these MTRRs come out
> of reset as disabled already. Drop the clear codes.
>
> Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
> ---
>
>  arch/x86/cpu/mtrr.c | 4 ----
>  1 file changed, 4 deletions(-)

Reviewed-by: Simon Glass <sjg at chromium.org>
Tested on chromebook_coral, chromebook_samus, chromebook_link, minnowmax
Tested-by: Simon Glass <sjg at chromium.org>