linux-kernel - Re: [PATCH v2 4/9] i2c: atr: split up i2c_atr_get_mapping_by

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Message-ID: <6056224.MhkbZ0Pkbq@fw-rgant>
Date: Thu, 27 Feb 2025 14:43:59 +0100
From: Romain Gantois <romain.gantois@...tlin.com>
To: Cosmin Tanislav <demonsingur@...il.com>
Cc: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>,
 Luca Ceresoli <luca.ceresoli@...tlin.com>,
 Wolfram Sang <wsa+renesas@...g-engineering.com>, linux-i2c@...r.kernel.org,
 linux-kernel@...r.kernel.org, Cosmin Tanislav <demonsingur@...il.com>
Subject: Re: [PATCH v2 4/9] i2c: atr: split up i2c_atr_get_mapping_by_addr()

On mardi 25 février 2025 12:39:32 heure normale d’Europe centrale Cosmin 
Tanislav wrote:
> The i2c_atr_get_mapping_by_addr() function handles three separate
> usecases: finding an existing mapping, creating a new mapping, or
> replacing an existing mapping if a new mapping cannot be created
> because there aren't enough aliases available.
> 
> Split up the function into three different functions handling its
> individual usecases to prepare for better usage of each one.
> 
> Signed-off-by: Cosmin Tanislav <demonsingur@...il.com>
> ---
>  drivers/i2c/i2c-atr.c | 108 ++++++++++++++++++++++++++++++------------
>  1 file changed, 79 insertions(+), 29 deletions(-)
> 
> diff --git a/drivers/i2c/i2c-atr.c b/drivers/i2c/i2c-atr.c
> index f2485d1670a2..9c4e9e8ec802 100644
> --- a/drivers/i2c/i2c-atr.c
> +++ b/drivers/i2c/i2c-atr.c
> @@ -239,9 +239,26 @@ static void i2c_atr_release_alias(struct
...
> +	i2c_atr_destroy_c2a(&c2a);
> +	i2c_atr_release_alias(chan->alias_pool, alias);
> +	return NULL;
> +}
> +
> +static struct i2c_atr_alias_pair *
> +i2c_atr_create_mapping_by_addr(struct i2c_atr_chan *chan, u16 addr)
> +{

I've missed this on my first review of this patch, but shouldn't 
i2c_atr_create_mapping_by_addr() also get a lockdep annotation, just like the 
other two mapping functions?

Thanks,

-- 
Romain Gantois, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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