linux-kernel - Re: [PATCH] pps: Remove usage of the deprecated ida_simple

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Date: Thu, 8 Feb 2024 18:57:49 +0100
From: Christophe JAILLET <christophe.jaillet@...adoo.fr>
To: Rodolfo Giometti <giometti@...eenne.com>
Cc: linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] pps: Remove usage of the deprecated ida_simple_xx() API

Le 10/12/2023 à 18:41, Christophe JAILLET a écrit :
> ida_alloc() and ida_free() should be preferred to the deprecated
> ida_simple_get() and ida_simple_remove().
> 
> This is less verbose.
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
> ---
>   drivers/pps/clients/pps_parport.c | 6 +++---
>   1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/pps/clients/pps_parport.c b/drivers/pps/clients/pps_parport.c
> index 42f93d4c6ee3..af972cdc04b5 100644
> --- a/drivers/pps/clients/pps_parport.c
> +++ b/drivers/pps/clients/pps_parport.c
> @@ -148,7 +148,7 @@ static void parport_attach(struct parport *port)
>   		return;
>   	}
>   
> -	index = ida_simple_get(&pps_client_index, 0, 0, GFP_KERNEL);
> +	index = ida_alloc(&pps_client_index, GFP_KERNEL);
>   	memset(&pps_client_cb, 0, sizeof(pps_client_cb));
>   	pps_client_cb.private = device;
>   	pps_client_cb.irq_func = parport_irq;
> @@ -188,7 +188,7 @@ static void parport_attach(struct parport *port)
>   err_unregister_dev:
>   	parport_unregister_device(device->pardev);
>   err_free:
> -	ida_simple_remove(&pps_client_index, index);
> +	ida_free(&pps_client_index, index);
>   	kfree(device);
>   }
>   
> @@ -208,7 +208,7 @@ static void parport_detach(struct parport *port)
>   	pps_unregister_source(device->pps);
>   	parport_release(pardev);
>   	parport_unregister_device(pardev);
> -	ida_simple_remove(&pps_client_index, device->index);
> +	ida_free(&pps_client_index, device->index);
>   	kfree(device);
>   }
>   

Hi,

gentle reminder.

All patches to remove the ida_simple API have been sent.
And Matthew Wilcox seems happy with the on going work. (see [1])

Based on next-20240207
$git grep ida_simple_get | wc -l
38

https://elixir.bootlin.com/linux/v6.8-rc3/A/ident/ida_simple_get
50

https://elixir.bootlin.com/linux/v6.7.4/A/ident/ida_simple_get
81

Thanks
CJ

[1]: https://lore.kernel.org/all/ZaqruGVz734zjxrZ@casper.infradead.org/