linux-kernel - [PATCH] devres: Simplify devm_percpu

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Date: Fri, 28 Jun 2024 21:03:41 +0800
From: Zijun Hu <quic_zijuhu@...cinc.com>
To: <gregkh@...uxfoundation.org>, <rafael@...nel.org>
CC: <linux-kernel@...r.kernel.org>
Subject: [PATCH] devres: Simplify devm_percpu_match() implementation

From: Zijun Hu <zijuhu@....qualcomm.com>

Simplify devm_percpu_match() implementation by removing redundant
conversions.

Signed-off-by: Zijun Hu <zijuhu@....qualcomm.com>
---
Previous discussion link:
https://lore.kernel.org/lkml/1719496036-24642-1-git-send-email-quic_zijuhu@quicinc.com/

 drivers/base/devres.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/base/devres.c b/drivers/base/devres.c
index 3beedeaa0ffc..050d7fcd0634 100644
--- a/drivers/base/devres.c
+++ b/drivers/base/devres.c
@@ -1173,9 +1173,8 @@ static void devm_percpu_release(struct device *dev, void *pdata)
 
 static int devm_percpu_match(struct device *dev, void *data, void *p)
 {
-	struct devres *devr = container_of(data, struct devres, data);
-
-	return *(void **)devr->data == p;
+	/* @data is already and must be (void *)devr->data */
+	return *(void **)data == p;
 }
 
 /**
-- 
2.7.4