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From: Breno Leitao <leitao@debian.org>
To: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Cc: "David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org,
	netdev@vger.kernel.org
Subject: Re: [PATCH net-next] net: netconsole: Constify struct config_item_type
Date: Tue, 13 Aug 2024 03:46:15 -0700	[thread overview]
Message-ID: <Zrs5dyMWT5u8qXNV@gmail.com> (raw)
In-Reply-To: <9c205b2b4bdb09fc9e9d2cb2f2936ec053da1b1b.1723325900.git.christophe.jaillet@wanadoo.fr>

Hello Christophe,

On Sat, Aug 10, 2024 at 11:39:04PM +0200, Christophe JAILLET wrote:
> 'struct config_item_type' is not modified in this driver.
> 
> This structure is only used with config_group_init_type_name() which takes
> a const struct config_item_type* as a 3rd argument.
> 
> This also makes things consistent with 'netconsole_target_type' witch is
> already const.
> 
> Constifying this structure moves some data to a read-only section, so
> increase overall security, especially when the structure holds some
> function pointers.
> 
> On a x86_64, with allmodconfig:
> Before:
> ======
>    text	   data	    bss	    dec	    hex	filename
>   33007	   3952	   1312	  38271	   957f	drivers/net/netconsole.o
> 
> After:
> =====
>    text	   data	    bss	    dec	    hex	filename
>   33071	   3888	   1312	  38271	   957f	drivers/net/netconsole.o
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

Reviewed-by: Breno Leitao <leitao@debian.org>

> Compile tested-only.

I've tested it using a selftime I am creating, and it is all good.

Thanks for the patch!
--breno

  reply	other threads:[~2024-08-13 10:46 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-08-10 21:39 [PATCH net-next] net: netconsole: Constify struct config_item_type Christophe JAILLET
2024-08-13 10:46 ` Breno Leitao [this message]
2024-08-14  2:30 ` patchwork-bot+netdevbpf

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