From: Michael Ellerman <mpe@ellerman.id.au>
To: Stewart Smith <stewart@linux.vnet.ibm.com>,
linuxppc-dev@lists.ozlabs.org
Cc: 蒲文 <wen.pu@powercore.com.cn>
Subject: Re: powerpc/powernv: pr_warn_once on unsupported OPAL_MSG type
Date: Thu, 17 Dec 2015 21:19:12 +1100 (AEDT) [thread overview]
Message-ID: <20151217101912.B369A1402EC@ozlabs.org> (raw)
In-Reply-To: <1449796103-7700-1-git-send-email-stewart@linux.vnet.ibm.com>
On Fri, 2015-11-12 at 01:08:23 UTC, Stewart Smith wrote:
> When running on newer OPAL firmware that supports sending extra
> OPAL_MSG types, we would print a warning on *every* message received.
>
> This could be a problem for kernels that don't support OPAL_MSG_OCC
> on machines that are running real close to thermal limits and the
> OCC is throttling the chip. For a kernel that is paying attention to
> the message queue, we could get these notifications quite often.
>
> Conceivably, future message types could also come fairly often,
> and printing that we didn't understand them 10,000 times provides
> no further information than printing them once.
>
> Cc: stable@vger.kernel.org
> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Applied to powerpc fixes, thanks.
https://git.kernel.org/powerpc/c/98da62b716a3b24ab8e77453
cheers
prev parent reply other threads:[~2015-12-17 10:19 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-11 1:08 [PATCH] powerpc/powernv: pr_warn_once on unsupported OPAL_MSG type Stewart Smith
2015-12-11 2:21 ` Michael Ellerman
2015-12-11 2:43 ` Wen Pu
2015-12-11 6:54 ` Stewart Smith
2015-12-17 10:19 ` Michael Ellerman [this message]
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