linux-kernel - Re: [PATCH 1/8] watchdog: bcm7038_wdt: Remove #ifdef guards for PM related functions

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Date:   Tue, 28 Jun 2022 13:09:58 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Paul Cercueil <paul@...pouillou.net>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>
Cc:     linux-watchdog@...r.kernel.org, linux-kernel@...r.kernel.org,
        Broadcom internal kernel review list 
        <bcm-kernel-feedback-list@...adcom.com>
Subject: Re: [PATCH 1/8] watchdog: bcm7038_wdt: Remove #ifdef guards for PM
 related functions

On 6/28/22 12:34, Paul Cercueil wrote:
> Use the new DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() macros to
> handle the .suspend/.resume callbacks.
> 
> These macros allow the suspend and resume functions to be automatically
> dropped by the compiler when CONFIG_SUSPEND is disabled, without having
> to use #ifdef guards. Not using #ifdef guards means that the code is
> always compiled independently of any Kconfig option, and thanks to that
> bugs and regressions are easier to catch.
> 
> Signed-off-by: Paul Cercueil <paul@...pouillou.net>
> Cc: Florian Fainelli <f.fainelli@...il.com>
> Cc: Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>

Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
Tested-by: Florian Fainelli <f.fainelli@...il.com>

Confirmed that the exact same code is generated before/after, thanks Paul!
-- 
Florian