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

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Message-ID: <ZS5qztBDc3ebxypI@nanopsycho>
Date:   Tue, 17 Oct 2023 13:06:54 +0200
From:   Jiri Pirko <jiri@...nulli.us>
To:     Przemek Kitszel <przemyslaw.kitszel@...el.com>
Cc:     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>,
        Shannon Nelson <shannon.nelson@....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>,
        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

Tue, Oct 17, 2023 at 12:53:33PM CEST, przemyslaw.kitszel@...el.com 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>
>---
>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;

Could you please covert the function to return void? Please make sure
to do this in the rest of the patchset as well.

Thanks!

pw-bot: cr


> }
>-- 
>2.40.1
>