netdev - Re: [PATCH net-next 05/12] ipv4: Unmask upper DSCP bits in get

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Message-ID: <Zs3mKW5twrchCk4g@debian>
Date: Tue, 27 Aug 2024 16:43:53 +0200
From: Guillaume Nault <gnault@...hat.com>
To: Ido Schimmel <idosch@...dia.com>
Cc: netdev@...r.kernel.org, davem@...emloft.net, kuba@...nel.org,
	pabeni@...hat.com, edumazet@...gle.com, dsahern@...nel.org,
	ast@...nel.org, daniel@...earbox.net, martin.lau@...ux.dev,
	john.fastabend@...il.com, steffen.klassert@...unet.com,
	herbert@...dor.apana.org.au, bpf@...r.kernel.org
Subject: Re: [PATCH net-next 05/12] ipv4: Unmask upper DSCP bits in
 get_rttos()

On Tue, Aug 27, 2024 at 02:18:06PM +0300, Ido Schimmel wrote:
> The function is used by a few socket types to retrieve the TOS value
> with which to perform the FIB lookup for packets sent through the socket
> (flowi4_tos). If a DS field was passed using the IP_TOS control message,
> then it is used. Otherwise the one specified via the IP_TOS socket
> option.
> 
> Unmask the upper DSCP bits so that in the future the lookup could be
> performed according to the full DSCP value.

Reviewed-by: Guillaume Nault <gnault@...hat.com>