linux-kernel - RE: linux-next: build failure after merge of the hwmon-staging tree

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Message-ID: <DM6PR12MB4074E31172FC1ECE2F42428DD4789@DM6PR12MB4074.namprd12.prod.outlook.com>
Date:   Wed, 31 Aug 2022 12:03:13 +0000
From:   Michael Shych <michaelsh@...dia.com>
To:     Stephen Rothwell <sfr@...b.auug.org.au>,
        Guenter Roeck <linux@...ck-us.net>
CC:     Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>, Wolfram Sang <wsa@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: RE: linux-next: build failure after merge of the hwmon-staging tree



> -----Original Message-----
> From: Stephen Rothwell <sfr@...b.auug.org.au>
> Sent: Wednesday, August 31, 2022 2:30 AM
> To: Guenter Roeck <linux@...ck-us.net>
> Cc: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>; Wolfram Sang
> <wsa@...nel.org>; Michael Shych <michaelsh@...dia.com>; Linux Kernel
> Mailing List <linux-kernel@...r.kernel.org>; Linux Next Mailing List <linux-
> next@...r.kernel.org>
> Subject: linux-next: build failure after merge of the hwmon-staging tree
> 
> Hi all,
> 
> After merging the hwmon-staging tree, today's linux-next build (x86_64
> allmodconfig) failed like this:
> 
> drivers/hwmon/emc2305.c:615:21: error: initialization of 'void (*)(struct
> i2c_client *)' from incompatible pointer type 'int (*)(struct i2c_client *)' [-
> Werror=incompatible-pointer-types]
>   615 |         .remove   = emc2305_remove,
>       |                     ^~~~~~~~~~~~~~
> drivers/hwmon/emc2305.c:615:21: note: (near initialization for
> 'emc2305_driver.remove')
> 
> Caused by commit
> 
>   324745b64626 ("hwmon: (emc2305) add support for EMC2301/2/3/5 RPM-
> based PWM Fan Speed Controller.")
> 
> interacting with commit
> 
>   ed5c2f5fd10d ("i2c: Make remove callback return void")
> 
> from the i2c tree.
> 
> From Uwe:
> 
> > There is an immutable tag that can be merged into your tree to resolve
> > the conflict before you send your changes to Linux at
> >
> >	https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git
> >i2c/make_remove_callback_void-immutable
> 
> I have applied the following merge fix patch for today.
> 
> From: Stephen Rothwell <sfr@...b.auug.org.au>
> Date: Wed, 31 Aug 2022 09:22:50 +1000
> Subject: [PATCH] hwmon: (emc2305) fix up for "i2c: Make remove callback
> return void"
> 
> Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>

Acked-by: Michael Shych <michaelsh@...dia.com>
> ---
>  drivers/hwmon/emc2305.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/hwmon/emc2305.c b/drivers/hwmon/emc2305.c index
> 9f6546ea3d69..df4c5816f661 100644
> --- a/drivers/hwmon/emc2305.c
> +++ b/drivers/hwmon/emc2305.c
> @@ -597,13 +597,12 @@ static int emc2305_probe(struct i2c_client *client,
> const struct i2c_device_id *
>  	return 0;
>  }
> 
> -static int emc2305_remove(struct i2c_client *client)
> +static void emc2305_remove(struct i2c_client *client)
>  {
>  	struct device *dev = &client->dev;
> 
>  	if (IS_REACHABLE(CONFIG_THERMAL))
>  		emc2305_unset_tz(dev);
> -	return 0;
>  }
> 
>  static struct i2c_driver emc2305_driver = {
> --
> 2.35.1
> 
> --
> Cheers,
> Stephen Rothwell