linux-kernel - [PATCH v4 01/11] libnvdimm: Replace namespace_match() with device_find_child_by

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Message-Id: <20241211-const_dfc_done-v4-1-583cc60329df@quicinc.com>
Date: Wed, 11 Dec 2024 08:08:03 +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>, 
 Alison Schofield <alison.schofield@...el.com>
Subject: [PATCH v4 01/11] libnvdimm: Replace namespace_match() with
 device_find_child_by_name()

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

Simplify nd_namespace_store() implementation by
using device_find_child_by_name().

Reviewed-by: Alison Schofield <alison.schofield@...el.com>
Signed-off-by: Zijun Hu <quic_zijuhu@...cinc.com>
---
 drivers/nvdimm/claim.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/nvdimm/claim.c b/drivers/nvdimm/claim.c
index 030dbde6b0882050c90fb8db106ec15b1baef7ca..9e84ab411564f9d5e7ceb687c6491562564552e3 100644
--- a/drivers/nvdimm/claim.c
+++ b/drivers/nvdimm/claim.c
@@ -67,13 +67,6 @@ bool nd_attach_ndns(struct device *dev, struct nd_namespace_common *attach,
 	return claimed;
 }
 
-static int namespace_match(struct device *dev, void *data)
-{
-	char *name = data;
-
-	return strcmp(name, dev_name(dev)) == 0;
-}
-
 static bool is_idle(struct device *dev, struct nd_namespace_common *ndns)
 {
 	struct nd_region *nd_region = to_nd_region(dev->parent);
@@ -168,7 +161,7 @@ ssize_t nd_namespace_store(struct device *dev,
 		goto out;
 	}
 
-	found = device_find_child(dev->parent, name, namespace_match);
+	found = device_find_child_by_name(dev->parent, name);
 	if (!found) {
 		dev_dbg(dev, "'%s' not found under %s\n", name,
 				dev_name(dev->parent));

-- 
2.34.1