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SubjectRe: [PATCH v1] ARM: Silence proc-v7-bugs.c spam about disabled Spectre workarounds
From
On 5/19/22 19:13, Dmitry Osipenko wrote:
> Print message about disabled Spectre workarounds only once to stop
> endless spam into KSMG each time CPU goes out from idling state.
> This spam makes system unusable with CONFIG_HARDEN_BRANCH_PREDICTOR=n
> for those who don't care about security and wants maximum performance.
>
> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
> ---
> arch/arm/mm/proc-v7-bugs.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/arch/arm/mm/proc-v7-bugs.c b/arch/arm/mm/proc-v7-bugs.c
> index fb9f3eb6bf48..f9730eba0632 100644
> --- a/arch/arm/mm/proc-v7-bugs.c
> +++ b/arch/arm/mm/proc-v7-bugs.c
> @@ -108,8 +108,7 @@ static unsigned int spectre_v2_install_workaround(unsigned int method)
> #else
> static unsigned int spectre_v2_install_workaround(unsigned int method)
> {
> - pr_info("CPU%u: Spectre V2: workarounds disabled by configuration\n",
> - smp_processor_id());
> + pr_info_once("Spectre V2: workarounds disabled by configuration\n");
>
> return SPECTRE_VULNERABLE;
> }

Hello Russell,

Could you please apply this patch? I tried to use yours patch tracker
today and it doesn't allow me to recover my password (server error: MAIL
FROM command failed Detail: Space shortage).

Thanks!

--
Best regards,
Dmitry

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