netdev - Re: [PATCH v2 2/2] sunrpc: add a Kconfig option to redirect dfprintk() output to trace buffer

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Message-ID: <20250827142411.GF5652@horms.kernel.org>
Date: Wed, 27 Aug 2025 15:24:11 +0100
From: Simon Horman <horms@...nel.org>
To: Jeff Layton <jlayton@...nel.org>
Cc: Trond Myklebust <trondmy@...nel.org>, Anna Schumaker <anna@...nel.org>,
	Chuck Lever <chuck.lever@...cle.com>, NeilBrown <neil@...wn.name>,
	Olga Kornievskaia <okorniev@...hat.com>,
	Dai Ngo <Dai.Ngo@...cle.com>, Tom Talpey <tom@...pey.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	linux-nfs@...r.kernel.org, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH v2 2/2] sunrpc: add a Kconfig option to redirect
 dfprintk() output to trace buffer

On Fri, Aug 22, 2025 at 09:19:23AM -0400, Jeff Layton wrote:
> We have a lot of old dprintk() call sites that aren't going anywhere
> anytime soon. At the same time, turning them up is a serious burden on
> the host due to the console locking overhead.
> 
> Add a new Kconfig option that redirects dfprintk() output to the trace
> buffer. This is more efficient than logging to the console and allows
> for proper interleaving of dprintk and static tracepoint events.
> 
> Since using trace_printk() causes scary warnings to pop at boot time,
> this new option defaults to "n".
> 
> Signed-off-by: Jeff Layton <jlayton@...nel.org>

Reviewed-by: Simon Horman <horms@...nel.org>