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From: Vincent Mailhol <mailhol@kernel.org>
To: Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
	Oliver Hartkopp <socketcan@hartkopp.net>,
	Marc Kleine-Budde <mkl@pengutronix.de>
Cc: linux-can@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/3] can: raw: use bitfields to store flags in struct raw_sock
Date: Wed, 17 Sep 2025 13:43:38 +0900	[thread overview]
Message-ID: <21193ce7-26ab-4c42-a84f-669ab57257c2@kernel.org> (raw)
In-Reply-To: <ed2a1b51-782b-4ee1-be75-06a0a742525c@wanadoo.fr>

On 17/09/2025 at 03:35, Christophe JAILLET wrote:
> Le 15/09/2025 à 11:23, Vincent Mailhol a écrit :

(...)

>> --- a/net/can/raw.c
>> +++ b/net/can/raw.c
>> @@ -87,10 +87,10 @@ struct raw_sock {
>>       struct net_device *dev;
>>       netdevice_tracker dev_tracker;
>>       struct list_head notifier;
>> -    int loopback;
>> -    int recv_own_msgs;
>> -    int fd_frames;
>> -    int xl_frames;
>> +    unsigned int loopback:1;
>> +    unsigned int recv_own_msgs:1;
>> +    unsigned int fd_frames:1;
>> +    unsigned int xl_frames:1;
>>       struct can_raw_vcid_options raw_vcid_opts;
>>       canid_t tx_vcid_shifted;
>>       canid_t rx_vcid_shifted;
> 
> [...]
> 
> Hi,
> 
> just in case, it looks like bound and join_filters could also be defined in the
> bitfield.
> 
> just my 2c.

You are absolutely right. I will add these two to the bitfield in v2.


Yours sincerely,
Vincent Mailhol


  reply	other threads:[~2025-09-17  4:43 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-15  9:23 [PATCH 0/3] can: raw: optimize the sizes of struct uniqframe and " Vincent Mailhol
2025-09-15  9:23 ` [PATCH 1/3] can: raw: reorder struct uniqframe's members to optimise packing Vincent Mailhol
2025-09-15 10:18   ` Oliver Hartkopp
2025-09-15  9:23 ` [PATCH 2/3] can: raw: use bitfields to store flags in struct raw_sock Vincent Mailhol
2025-09-15 10:16   ` Oliver Hartkopp
2025-09-15 10:47     ` Vincent Mailhol
2025-09-15 17:41       ` Oliver Hartkopp
2025-09-16 18:35   ` Christophe JAILLET
2025-09-17  4:43     ` Vincent Mailhol [this message]
2025-09-15  9:23 ` [PATCH 3/3] can: raw: reorder struct raw_sock's members to optimise packing Vincent Mailhol
2025-09-15 17:42   ` Oliver Hartkopp

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