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Message-ID: <9fcf96ac-e480-fa22-7357-04760ed1e47d@intel.com>
Date: Tue, 17 Oct 2023 13:35:03 +0200
From: Przemek Kitszel <przemyslaw.kitszel@...el.com>
To: Jiri Pirko <jiri@...nulli.us>
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
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<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 10/17/23 13:15, Jiri Pirko wrote:
> Tue, Oct 17, 2023 at 01:06:54PM CEST, jiri@...nulli.us wrote:
>> 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!
>
> Sorry, I messed up, this is a cb. Looks fine.
Thanks :)
I was also tempted to convert, but there are other possibilities of
error to report from callbacks :)
There are still some places in mlx5 that seems as possible candidates,
but this series is big enough to draw the line here.
>
> pw-bot: under-review
>
>>
>> pw-bot: cr
>>
>>
>>> }
>>> --
>>> 2.40.1
>>>
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