linux-kernel - Re: [PATCH v2 2/9] pwm: lpss: Move exported symbols to PWM

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Message-ID: <20220924095945.pzyhc24jhjwlfdin@pengutronix.de>
Date:   Sat, 24 Sep 2022 11:59:45 +0200
From:   Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     linux-kernel@...r.kernel.org, linux-pwm@...r.kernel.org,
        Thierry Reding <thierry.reding@...il.com>
Subject: Re: [PATCH v2 2/9] pwm: lpss: Move exported symbols to PWM_LPSS
 namespace

Hello,

On Thu, Sep 08, 2022 at 04:56:51PM +0300, Andy Shevchenko wrote:
> Avoid unnecessary pollution of the global symbol namespace by
> moving library functions in to a specific namespace and import
> that into the drivers that make use of the functions.
> 
> For more info: https://lwn.net/Articles/760045/
> 
> Suggested-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> ---
>  drivers/pwm/pwm-lpss-pci.c      | 1 +
>  drivers/pwm/pwm-lpss-platform.c | 1 +
>  drivers/pwm/pwm-lpss.c          | 2 ++
>  3 files changed, 4 insertions(+)
> 
> diff --git a/drivers/pwm/pwm-lpss-pci.c b/drivers/pwm/pwm-lpss-pci.c
> index 75b778e839b3..9f2c666b95ec 100644
> --- a/drivers/pwm/pwm-lpss-pci.c
> +++ b/drivers/pwm/pwm-lpss-pci.c
> @@ -92,3 +92,4 @@ module_pci_driver(pwm_lpss_driver_pci);
>  
>  MODULE_DESCRIPTION("PWM PCI driver for Intel LPSS");
>  MODULE_LICENSE("GPL v2");
> +MODULE_IMPORT_NS(PWM_LPSS);

Each user of the lpss.h header needs that, right? Then the
MODULE_IMPORT_NS statement can go into the header, too.

Even without this change:

Acked-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>

Thanks
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

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