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References: <20240125134104.2045573-1-leitao@debian.org>
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From: Pavan Chebbi <pavan.chebbi@broadcom.com>
Date: Thu, 25 Jan 2024 20:03:18 +0530
Message-ID: <CALs4sv2U+3uu1Nz0Sf9_Ya6YKxK09WU=QH4VmO94FjC3iWX3rA@mail.gmail.com>
Subject: Re: [PATCH net] bnxt_en: Make PTP timestamp HWRM more silent
To: Breno Leitao <leitao@debian.org>
Cc: Michael Chan <michael.chan@broadcom.com>, "David S. Miller" <davem@davemloft.net>, 
	Eric Dumazet <edumazet@google.com>, Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>, 
	Richard Cochran <richardcochran@gmail.com>, gospo@broadcom.com, 
	"open list:BROADCOM BNXT_EN 50 GIGABIT ETHERNET DRIVER" <netdev@vger.kernel.org>, open list <linux-kernel@vger.kernel.org>
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On Thu, Jan 25, 2024 at 7:11=E2=80=AFPM Breno Leitao <leitao@debian.org> wr=
ote:
>
> commit 056bce63c469 ("bnxt_en: Make PTP TX timestamp HWRM query silent")
> changed a netdev_err() to netdev_WARN_ONCE().
>
> netdev_WARN_ONCE() is it generates a kernel WARNING, which is bad, for
> the following reasons:
>
>  * You do not a kernel warning if the firmware queries are late
>  * In busy networks, timestamp query failures fairly regularly
>  * A WARNING message doesn't bring much value, since the code path
> is clear.
> (This was discussed in-depth in [1])
>
> Transform the netdev_WARN_ONCE() into a netdev_warn_once(), and print a
> more well-behaved message, instead of a full WARN().
>
>         bnxt_en 0000:67:00.0 eth0: TS query for TX timer failed rc =3D ff=
fffff5
>
> [1] Link: https://lore.kernel.org/all/ZbDj%2FFI4EJezcfd1@gmail.com/
> Signed-off-by: Breno Leitao <leitao@debian.org>

LGTM, however, you may still need to add a proper fixes tag.

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