netdev - [PATCH v4 05/11] driver core: Simplify API device_find_child_by

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Message-Id: <20241211-const_dfc_done-v4-5-583cc60329df@quicinc.com>
Date: Wed, 11 Dec 2024 08:08:07 +0800
From: Zijun Hu <zijun_hu@...oud.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>, 
 Uwe Kleine-König <ukleinek@...nel.org>, 
 James Bottomley <James.Bottomley@...senPartnership.com>, 
 Thomas Weißschuh <thomas@...ch.de>, 
 Zijun Hu <zijun_hu@...oud.com>, linux-kernel@...r.kernel.org, 
 nvdimm@...ts.linux.dev, linux-sound@...r.kernel.org, 
 sparclinux@...r.kernel.org, linux-block@...r.kernel.org, 
 linux-cxl@...r.kernel.org, linux1394-devel@...ts.sourceforge.net, 
 arm-scmi@...r.kernel.org, linux-efi@...r.kernel.org, 
 linux-gpio@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
 linux-mediatek@...ts.infradead.org, linux-hwmon@...r.kernel.org, 
 linux-media@...r.kernel.org, linux-pwm@...r.kernel.org, 
 linux-remoteproc@...r.kernel.org, linux-scsi@...r.kernel.org, 
 linux-usb@...r.kernel.org, linux-serial@...r.kernel.org, 
 netdev@...r.kernel.org, Zijun Hu <quic_zijuhu@...cinc.com>
Subject: [PATCH v4 05/11] driver core: Simplify API
 device_find_child_by_name() implementation

From: Zijun Hu <quic_zijuhu@...cinc.com>

Simplify device_find_child_by_name() implementation by both existing
API device_find_child() and device_match_name().

Signed-off-by: Zijun Hu <quic_zijuhu@...cinc.com>
---
 drivers/base/core.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/base/core.c b/drivers/base/core.c
index bc3b523a4a6366080c3c9fd190e54c7fd13c8ded..8116bc8dd6e9eba0653ca686a90c7008de9e2840 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -4110,18 +4110,7 @@ EXPORT_SYMBOL_GPL(device_find_child);
 struct device *device_find_child_by_name(struct device *parent,
 					 const char *name)
 {
-	struct klist_iter i;
-	struct device *child;
-
-	if (!parent)
-		return NULL;
-
-	klist_iter_init(&parent->p->klist_children, &i);
-	while ((child = next_device(&i)))
-		if (sysfs_streq(dev_name(child), name) && get_device(child))
-			break;
-	klist_iter_exit(&i);
-	return child;
+	return device_find_child(parent, name, device_match_name);
 }
 EXPORT_SYMBOL_GPL(device_find_child_by_name);
 

-- 
2.34.1