On Fri, Oct 19, 2018 at 09:59:57AM +0100, Charles Keepax wrote:
> irq_create_mapping calls irq_find_mapping internally and will use the
> found mapping if one exists, so there is no need to manually call this
> from i2c_smbus_host_notify_to_irq.
> 
> Signed-off-by: Charles Keepax <ckee...@opensource.cirrus.com>

Adding Benjamin to recipients. He wrote that code.

> ---
>  drivers/i2c/i2c-core-base.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
> index dc78aa7369def..656f0a6fe3adf 100644
> --- a/drivers/i2c/i2c-core-base.c
> +++ b/drivers/i2c/i2c-core-base.c
> @@ -306,10 +306,7 @@ static int i2c_smbus_host_notify_to_irq(const struct 
> i2c_client *client)
>       if (client->flags & I2C_CLIENT_TEN)
>               return -EINVAL;
>  
> -     irq = irq_find_mapping(adap->host_notify_domain, client->addr);
> -     if (!irq)
> -             irq = irq_create_mapping(adap->host_notify_domain,
> -                                      client->addr);
> +     irq = irq_create_mapping(adap->host_notify_domain, client->addr);
>  
>       return irq > 0 ? irq : -ENXIO;
>  }
> -- 
> 2.11.0
> 

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