linux-kernel - [RFC PATCH v1 9/9] driver core: Delete driver_deferred_probe_check

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Date:   Thu, 26 May 2022 01:15:48 -0700
From:   Saravana Kannan <saravanak@...gle.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Kevin Hilman <khilman@...nel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>,
        Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Daniel Scally <djrscally@...il.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        David Ahern <dsahern@...nel.org>
Cc:     Saravana Kannan <saravanak@...gle.com>,
        Mark Brown <broonie@...nel.org>, Rob Herring <robh@...nel.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        John Stultz <jstultz@...gle.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        kernel-team@...roid.com, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, iommu@...ts.linux-foundation.org,
        netdev@...r.kernel.org, linux-gpio@...r.kernel.org,
        linux-acpi@...r.kernel.org
Subject: [RFC PATCH v1 9/9] driver core: Delete driver_deferred_probe_check_state()

The function is no longer used. So delete it.

Signed-off-by: Saravana Kannan <saravanak@...gle.com>
---
 drivers/base/dd.c             | 30 ------------------------------
 include/linux/device/driver.h |  1 -
 2 files changed, 31 deletions(-)

diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index af8138d44e6c..789b0871dc45 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -274,42 +274,12 @@ static int __init deferred_probe_timeout_setup(char *str)
 }
 __setup("deferred_probe_timeout=", deferred_probe_timeout_setup);
 
-/**
- * driver_deferred_probe_check_state() - Check deferred probe state
- * @dev: device to check
- *
- * Return:
- * * -ENODEV if initcalls have completed and modules are disabled.
- * * -ETIMEDOUT if the deferred probe timeout was set and has expired
- *   and modules are enabled.
- * * -EPROBE_DEFER in other cases.
- *
- * Drivers or subsystems can opt-in to calling this function instead of directly
- * returning -EPROBE_DEFER.
- */
-int driver_deferred_probe_check_state(struct device *dev)
-{
-	if (!IS_ENABLED(CONFIG_MODULES) && initcalls_done) {
-		dev_warn(dev, "ignoring dependency for device, assuming no driver\n");
-		return -ENODEV;
-	}
-
-	if (!driver_deferred_probe_timeout && initcalls_done) {
-		dev_warn(dev, "deferred probe timeout, ignoring dependency\n");
-		return -ETIMEDOUT;
-	}
-
-	return -EPROBE_DEFER;
-}
-EXPORT_SYMBOL_GPL(driver_deferred_probe_check_state);
-
 static void deferred_probe_timeout_work_func(struct work_struct *work)
 {
 	struct device_private *p;
 
 	fw_devlink_drivers_done();
 
-	driver_deferred_probe_timeout = 0;
 	driver_deferred_probe_trigger();
 	flush_work(&deferred_probe_work);
 
diff --git a/include/linux/device/driver.h b/include/linux/device/driver.h
index 700453017e1c..7c245d269feb 100644
--- a/include/linux/device/driver.h
+++ b/include/linux/device/driver.h
@@ -241,7 +241,6 @@ driver_find_device_by_acpi_dev(struct device_driver *drv, const void *adev)
 
 extern int driver_deferred_probe_timeout;
 void driver_deferred_probe_add(struct device *dev);
-int driver_deferred_probe_check_state(struct device *dev);
 void driver_init(void);
 
 /**
-- 
2.36.1.124.g0e6072fb45-goog