linux-kernel - [PATCH] hwrng: n2: Use device_get_match

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Message-Id: <20231006214340.338620-1-robh@kernel.org>
Date:   Fri,  6 Oct 2023 16:43:40 -0500
From:   Rob Herring <robh@...nel.org>
To:     Olivia Mackall <olivia@...enic.com>,
        Herbert Xu <herbert@...dor.apana.org.au>
Cc:     linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] hwrng: n2: Use device_get_match_data()

Use preferred device_get_match_data() instead of of_match_device() to
get the driver match data. With this, adjust the includes to explicitly
include the correct headers.

Signed-off-by: Rob Herring <robh@...nel.org>
---
 drivers/char/hw_random/n2-drv.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/char/hw_random/n2-drv.c b/drivers/char/hw_random/n2-drv.c
index 73e408146420..aaae16b98475 100644
--- a/drivers/char/hw_random/n2-drv.c
+++ b/drivers/char/hw_random/n2-drv.c
@@ -14,7 +14,8 @@
 #include <linux/hw_random.h>
 
 #include <linux/of.h>
-#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
 
 #include <asm/hypervisor.h>
 
@@ -695,20 +696,15 @@ static void n2rng_driver_version(void)
 static const struct of_device_id n2rng_match[];
 static int n2rng_probe(struct platform_device *op)
 {
-	const struct of_device_id *match;
 	int err = -ENOMEM;
 	struct n2rng *np;
 
-	match = of_match_device(n2rng_match, &op->dev);
-	if (!match)
-		return -EINVAL;
-
 	n2rng_driver_version();
 	np = devm_kzalloc(&op->dev, sizeof(*np), GFP_KERNEL);
 	if (!np)
 		goto out;
 	np->op = op;
-	np->data = (struct n2rng_template *)match->data;
+	np->data = (struct n2rng_template *)device_get_match_data(&op->dev);
 
 	INIT_DELAYED_WORK(&np->work, n2rng_work);
 
-- 
2.40.1