linux-kernel - Re: [PATCH net-next v2 03/11] pds_core: devlink health: use retained error fmsg API

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Message-ID: <97473ad9-c9c8-450c-bb1a-ad72dea0a5ad@amd.com>
Date:   Tue, 17 Oct 2023 09:52:57 -0700
From:   "Nelson, Shannon" <shannon.nelson@....com>
To:     Przemek Kitszel <przemyslaw.kitszel@...el.com>,
        Jiri Pirko <jiri@...nulli.us>, netdev@...r.kernel.org,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Michael Chan <michael.chan@...adcom.com>,
        Cai Huoqing <cai.huoqing@...ux.dev>,
        George Cherian <george.cherian@...vell.com>,
        Danielle Ratson <danieller@...dia.com>,
        Moshe Shemesh <moshe@...dia.com>,
        Saeed Mahameed <saeedm@...dia.com>,
        Ariel Elior <aelior@...vell.com>,
        Manish Chopra <manishc@...vell.com>,
        Igor Russkikh <irusskikh@...vell.com>,
        Coiby Xu <coiby.xu@...il.com>
Cc:     Brett Creeley <brett.creeley@....com>,
        Sunil Goutham <sgoutham@...vell.com>,
        Linu Cherian <lcherian@...vell.com>,
        Geetha sowjanya <gakula@...vell.com>,
        Jerin Jacob <jerinj@...vell.com>,
        hariprasad <hkelam@...vell.com>,
        Subbaraya Sundeep <sbhatta@...vell.com>,
        Ido Schimmel <idosch@...dia.com>,
        Petr Machata <petrm@...dia.com>,
        Eran Ben Elisha <eranbe@...dia.com>,
        Aya Levin <ayal@...lanox.com>,
        Leon Romanovsky <leon@...nel.org>,
        linux-kernel@...r.kernel.org,
        Jesse Brandeburg <jesse.brandeburg@...el.com>
Subject: Re: [PATCH net-next v2 03/11] pds_core: devlink health: use retained
 error fmsg API

On 10/17/2023 3:53 AM, Przemek Kitszel wrote:
> 
> Drop unneeded error checking.
> 
> devlink_fmsg_*() family of functions is now retaining errors,
> so there is no need to check for them after each call.
> 
> Reviewed-by: Jesse Brandeburg <jesse.brandeburg@...el.com>
> Signed-off-by: Przemek Kitszel <przemyslaw.kitszel@...el.com>

Thanks,

Reviewed-by: Shannon Nelson <shannon.nelson@....com>

> ---
> add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-57 (-57)
> ---
>   drivers/net/ethernet/amd/pds_core/devlink.c | 29 ++++++---------------
>   1 file changed, 8 insertions(+), 21 deletions(-)
> 
> diff --git a/drivers/net/ethernet/amd/pds_core/devlink.c b/drivers/net/ethernet/amd/pds_core/devlink.c
> index d9607033bbf2..8b2b9e0d59f3 100644
> --- a/drivers/net/ethernet/amd/pds_core/devlink.c
> +++ b/drivers/net/ethernet/amd/pds_core/devlink.c
> @@ -154,33 +154,20 @@ int pdsc_fw_reporter_diagnose(struct devlink_health_reporter *reporter,
>                                struct netlink_ext_ack *extack)
>   {
>          struct pdsc *pdsc = devlink_health_reporter_priv(reporter);
> -       int err;
> 
>          mutex_lock(&pdsc->config_lock);
> -
>          if (test_bit(PDSC_S_FW_DEAD, &pdsc->state))
> -               err = devlink_fmsg_string_pair_put(fmsg, "Status", "dead");
> +               devlink_fmsg_string_pair_put(fmsg, "Status", "dead");
>          else if (!pdsc_is_fw_good(pdsc))
> -               err = devlink_fmsg_string_pair_put(fmsg, "Status", "unhealthy");
> +               devlink_fmsg_string_pair_put(fmsg, "Status", "unhealthy");
>          else
> -               err = devlink_fmsg_string_pair_put(fmsg, "Status", "healthy");
> -
> +               devlink_fmsg_string_pair_put(fmsg, "Status", "healthy");
>          mutex_unlock(&pdsc->config_lock);
> 
> -       if (err)
> -               return err;
> -
> -       err = devlink_fmsg_u32_pair_put(fmsg, "State",
> -                                       pdsc->fw_status &
> -                                               ~PDS_CORE_FW_STS_F_GENERATION);
> -       if (err)
> -               return err;
> -
> -       err = devlink_fmsg_u32_pair_put(fmsg, "Generation",
> -                                       pdsc->fw_generation >> 4);
> -       if (err)
> -               return err;
> +       devlink_fmsg_u32_pair_put(fmsg, "State",
> +                                 pdsc->fw_status & ~PDS_CORE_FW_STS_F_GENERATION);
> +       devlink_fmsg_u32_pair_put(fmsg, "Generation", pdsc->fw_generation >> 4);
> +       devlink_fmsg_u32_pair_put(fmsg, "Recoveries", pdsc->fw_recoveries);
> 
> -       return devlink_fmsg_u32_pair_put(fmsg, "Recoveries",
> -                                        pdsc->fw_recoveries);
> +       return 0;
>   }
> --
> 2.40.1
>