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From: Simon Horman <horms@kernel.org>
To: Breno Leitao <leitao@debian.org>
Cc: Andrew Lunn <andrew+netdev@lunn.ch>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Jonathan Corbet <corbet@lwn.net>, Shuah Khan <shuah@kernel.org>,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org,
	rdunlap@infradead.org, kernel-team@meta.com
Subject: Re: [PATCH RFC net-next v3 1/8] netconsole: consolidate send buffers into netconsole_target struct
Date: Thu, 30 Jan 2025 10:35:44 +0000	[thread overview]
Message-ID: <20250130103544.GE113107@kernel.org> (raw)
In-Reply-To: <20250128161128.GB277827@kernel.org>

On Tue, Jan 28, 2025 at 04:11:28PM +0000, Simon Horman wrote:
> On Fri, Jan 24, 2025 at 07:16:40AM -0800, Breno Leitao wrote:
> > Move the static buffers from send_msg_no_fragmentation() and
> > send_msg_fragmented() into the netconsole_target structure. This
> > simplifies the code by:
> > - Eliminating redundant static buffers
> > - Centralizing buffer management in the target structure
> > - Reducing memory usage by 1KB (one buffer instead of two)
> > 
> > The buffer in netconsole_target is protected by target_list_lock,
> > maintaining the same synchronization semantics as the original code.
> > 
> > Suggested-by: Jakub Kicinski <kuba@kernel.org>
> > Signed-off-by: Breno Leitao <leitao@debian.org>
> > ---
> >  drivers/net/netconsole.c | 29 +++++++++++++++--------------
> >  1 file changed, 15 insertions(+), 14 deletions(-)
> > 
> > diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c
> > index 86ab4a42769a49eebe5dd6f01dafafc6c86ec54f..1a78704681184673f5c1ba8ae665e46751384293 100644
> > --- a/drivers/net/netconsole.c
> > +++ b/drivers/net/netconsole.c
> > @@ -137,6 +137,8 @@ struct netconsole_target {
> >  	bool			extended;
> >  	bool			release;
> >  	struct netpoll		np;
> > +	/* protected by target_list_lock */
> > +	char			buf[MAX_PRINT_CHUNK];
> 
> nit: buf should also be added to the Kernel doc for this structure.
> 
> ...

Hi Breno,

With that fixed feel free to add:

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


  reply	other threads:[~2025-01-30 10:35 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-24 15:16 [PATCH RFC net-next v3 0/8] netconsole: Add support for CPU population Breno Leitao
2025-01-24 15:16 ` [PATCH RFC net-next v3 1/8] netconsole: consolidate send buffers into netconsole_target struct Breno Leitao
2025-01-28 16:11   ` Simon Horman
2025-01-30 10:35     ` Simon Horman [this message]
2025-01-31 13:11       ` Breno Leitao
2025-01-24 15:16 ` [PATCH RFC net-next v3 2/8] netconsole: Rename userdata to extradata Breno Leitao
2025-01-30 10:36   ` Simon Horman
2025-01-24 15:16 ` [PATCH RFC net-next v3 3/8] netconsole: Helper to count number of used entries Breno Leitao
2025-01-30 10:37   ` Simon Horman
2025-01-24 15:16 ` [PATCH RFC net-next v3 4/8] netconsole: Introduce configfs helpers for sysdata features Breno Leitao
2025-01-28 16:12   ` Simon Horman
2025-01-30 10:37     ` Simon Horman
2025-01-24 15:16 ` [PATCH RFC net-next v3 5/8] netconsole: Include sysdata in extradata entry count Breno Leitao
2025-01-30 10:38   ` Simon Horman
2025-01-24 15:16 ` [PATCH RFC net-next v3 6/8] netconsole: add support for sysdata and CPU population Breno Leitao
2025-01-30 10:38   ` Simon Horman
2025-01-24 15:16 ` [PATCH RFC net-next v3 7/8] netconsole: selftest: test for sysdata CPU Breno Leitao
2025-01-30 10:38   ` Simon Horman
2025-01-24 15:16 ` [PATCH RFC net-next v3 8/8] netconsole: docs: Add documentation for CPU number auto-population Breno Leitao
2025-01-24 16:15   ` Andrew Lunn
2025-01-27 17:10     ` Breno Leitao
2025-01-24 16:02 ` [PATCH RFC net-next v3 0/8] netconsole: Add support for CPU population Andrew Lunn
2025-01-27  9:52   ` Breno Leitao

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