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From: Romain Gantois <romain.gantois@bootlin.com>
To: Cosmin Tanislav <demonsingur@gmail.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>,
	Luca Ceresoli <luca.ceresoli@bootlin.com>,
	Wolfram Sang <wsa+renesas@sang-engineering.com>,
	linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org,
	Cosmin Tanislav <demonsingur@gmail.com>
Subject: Re: [PATCH v2 5/9] i2c: atr: do not create mapping in detach_addr()
Date: Thu, 27 Feb 2025 14:33:34 +0100	[thread overview]
Message-ID: <22639181.EfDdHjke4D@fw-rgant> (raw)
In-Reply-To: <20250225113939.49811-6-demonsingur@gmail.com>

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On mardi 25 février 2025 12:39:33 heure normale d’Europe centrale Cosmin 
Tanislav wrote:
> It is useless to create a new mapping just to detach it immediately.
> 
> Use the newly added i2c_atr_find_mapping_by_addr() function to avoid it,
> and exit without logging an error if not found.
> 
> Signed-off-by: Cosmin Tanislav <demonsingur@gmail.com>
> ---
>  drivers/i2c/i2c-atr.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/i2c/i2c-atr.c b/drivers/i2c/i2c-atr.c
> index 9c4e9e8ec802..b62aa6ae452e 100644
> --- a/drivers/i2c/i2c-atr.c
> +++ b/drivers/i2c/i2c-atr.c
> @@ -586,10 +586,8 @@ static void i2c_atr_detach_addr(struct i2c_adapter
> *adapter,
> 
>  	mutex_lock(&chan->alias_pairs_lock);
> 
> -	c2a = i2c_atr_get_mapping_by_addr(chan, addr);
> +	c2a = i2c_atr_find_mapping_by_addr(chan, addr);
>  	if (!c2a) {
> -		 /* This should never happen */
> -		dev_warn(atr->dev, "Unable to find address mapping\n");
>  		mutex_unlock(&chan->alias_pairs_lock);
>  		return;
>  	}

Reviewed-by: Romain Gantois <romain.gantois@bootlin.com>

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  reply	other threads:[~2025-02-27 13:33 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-02-25 11:39 [PATCH v2 0/9] i2c: atr: allow usage of nested ATRs Cosmin Tanislav
2025-02-25 11:39 ` [PATCH v2 1/9] i2c: atr: Fix lockdep for " Cosmin Tanislav
2025-02-25 11:39 ` [PATCH v2 2/9] i2c: atr: unlock mutex after c2a access Cosmin Tanislav
2025-02-27 10:43   ` Romain Gantois
2025-02-25 11:39 ` [PATCH v2 3/9] i2c: atr: find_mapping() -> get_mapping() Cosmin Tanislav
2025-02-27 13:25   ` Romain Gantois
2025-02-25 11:39 ` [PATCH v2 4/9] i2c: atr: split up i2c_atr_get_mapping_by_addr() Cosmin Tanislav
2025-02-27 13:29   ` Romain Gantois
2025-02-27 13:43   ` Romain Gantois
2025-02-25 11:39 ` [PATCH v2 5/9] i2c: atr: do not create mapping in detach_addr() Cosmin Tanislav
2025-02-27 13:33   ` Romain Gantois [this message]
2025-02-25 11:39 ` [PATCH v2 6/9] i2c: atr: deduplicate logic in attach_addr() Cosmin Tanislav
2025-02-27 13:36   ` Romain Gantois
2025-02-28 12:22     ` Cosmin Tanislav
2025-02-25 11:39 ` [PATCH v2 7/9] i2c: atr: allow replacing mappings " Cosmin Tanislav
2025-02-25 11:39 ` [PATCH v2 8/9] i2c: atr: add static flag Cosmin Tanislav
2025-02-27 13:58   ` Romain Gantois
2025-02-25 11:39 ` [PATCH v2 9/9] i2c: atr: add passthrough flag Cosmin Tanislav
2025-02-27 14:03   ` Romain Gantois

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