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From: Thorsten Blum <thorsten.blum@linux.dev>
To: Bjorn Andersson <andersson@kernel.org>,
	Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Thorsten Blum <thorsten.blum@linux.dev>,
	linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [RESEND PATCH] rpmsg: Use strscpy() instead of strscpy_pad()
Date: Tue, 29 Apr 2025 12:45:43 +0200	[thread overview]
Message-ID: <20250429104543.66927-2-thorsten.blum@linux.dev> (raw)

kzalloc() already zero-initializes the destination buffer, making
strscpy() sufficient for safely copying the name. The additional NUL-
padding performed by strscpy_pad() is unnecessary.

The size parameter is optional, and strscpy() automatically determines
the size of the destination buffer using sizeof() when the argument is
omitted. RPMSG_NAME_SIZE is equal to sizeof(rpdev->id.name) and can be
removed - remove it.

No functional changes intended.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
 drivers/rpmsg/qcom_glink_native.c | 2 +-
 drivers/rpmsg/qcom_smd.c          | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c
index a2f9d85c7156..820a6ca5b1d7 100644
--- a/drivers/rpmsg/qcom_glink_native.c
+++ b/drivers/rpmsg/qcom_glink_native.c
@@ -1663,7 +1663,7 @@ static int qcom_glink_rx_open(struct qcom_glink *glink, unsigned int rcid,
 		}
 
 		rpdev->ept = &channel->ept;
-		strscpy_pad(rpdev->id.name, name, RPMSG_NAME_SIZE);
+		strscpy(rpdev->id.name, name);
 		rpdev->src = RPMSG_ADDR_ANY;
 		rpdev->dst = RPMSG_ADDR_ANY;
 		rpdev->ops = &glink_device_ops;
diff --git a/drivers/rpmsg/qcom_smd.c b/drivers/rpmsg/qcom_smd.c
index 40d386809d6b..3c86c5553de6 100644
--- a/drivers/rpmsg/qcom_smd.c
+++ b/drivers/rpmsg/qcom_smd.c
@@ -1089,7 +1089,7 @@ static int qcom_smd_create_device(struct qcom_smd_channel *channel)
 
 	/* Assign public information to the rpmsg_device */
 	rpdev = &qsdev->rpdev;
-	strscpy_pad(rpdev->id.name, channel->name, RPMSG_NAME_SIZE);
+	strscpy(rpdev->id.name, channel->name);
 	rpdev->src = RPMSG_ADDR_ANY;
 	rpdev->dst = RPMSG_ADDR_ANY;
 
-- 
2.49.0


             reply	other threads:[~2025-04-29 10:46 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-29 10:45 Thorsten Blum [this message]
2025-04-30 14:59 ` [RESEND PATCH] rpmsg: Use strscpy() instead of strscpy_pad() Mathieu Poirier
2025-06-10 10:38   ` Thorsten Blum
2025-06-11  3:07     ` Bjorn Andersson
2025-06-17 21:30 ` Bjorn Andersson

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