Re: [PATCH v2] firmware/psci: demote suspend-mode warning to info level

From: Johan Hovold
Date: Wed Nov 30 2022 - 01:53:20 EST


On Wed, Oct 26, 2022 at 03:54:45PM +0200, Johan Hovold wrote:
> On some Qualcomm platforms, like SC8280XP, the attempt to set PC mode
> during boot fails with PSCI_RET_DENIED and since commit 998fcd001feb
> ("firmware/psci: Print a warning if PSCI doesn't accept PC mode") this
> is now logged at warning level:
>
> psci: failed to set PC mode: -3
>
> As there is nothing users can do about the firmware behaving this way,
> demote the warning to info level and clearly mark it as a firmware bug:
>
> psci: [Firmware Bug]: failed to set PC mode: -3
>
> Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
> ---
> drivers/firmware/psci/psci.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/firmware/psci/psci.c b/drivers/firmware/psci/psci.c
> index e7bcfca4159f..f8fa32f0a130 100644
> --- a/drivers/firmware/psci/psci.c
> +++ b/drivers/firmware/psci/psci.c
> @@ -165,7 +165,8 @@ int psci_set_osi_mode(bool enable)
>
> err = invoke_psci_fn(PSCI_1_0_FN_SET_SUSPEND_MODE, suspend_mode, 0, 0);
> if (err < 0)
> - pr_warn("failed to set %s mode: %d\n", enable ? "OSI" : "PC", err);
> + pr_info(FW_BUG "failed to set %s mode: %d\n",
> + enable ? "OSI" : "PC", err);
> return psci_to_linux_errno(err);
> }

Mark and Lorenzo, I noticed this one hasn't been picked up yet. Is that
something you will do or is Arnd supposed to take it?

Johan