linux-kernel - [PATCH 1/3] drivers: hv: vmbus: Fix sysfs output format for ring buffer index

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Message-ID: <20250913192450.4134957-1-alok.a.tiwari@oracle.com>
Date: Sat, 13 Sep 2025 12:24:42 -0700
From: Alok Tiwari <alok.a.tiwari@...cle.com>
To: kys@...rosoft.com, haiyangz@...rosoft.com, wei.liu@...nel.org,
        decui@...rosoft.com, linux-hyperv@...r.kernel.org
Cc: alok.a.tiwari@...cle.com, linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] drivers: hv: vmbus: Fix sysfs output format for ring buffer index

The sysfs attributes out_read_index and out_write_index in
vmbus_drv.c currently use %d to print outbound.current_read_index
and outbound.current_write_index.

These fields are u32 values, so printing them with %d (signed) is
not logically correct. Update the format specifier to %u to
correctly match their type.

No functional change, only fixes the sysfs output format.

Signed-off-by: Alok Tiwari <alok.a.tiwari@...cle.com>
---
 drivers/hv/vmbus_drv.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 2ed5a1e89d69..8b58306cb140 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -322,7 +322,7 @@ static ssize_t out_read_index_show(struct device *dev,
 					  &outbound);
 	if (ret < 0)
 		return ret;
-	return sysfs_emit(buf, "%d\n", outbound.current_read_index);
+	return sysfs_emit(buf, "%u\n", outbound.current_read_index);
 }
 static DEVICE_ATTR_RO(out_read_index);
 
@@ -341,7 +341,7 @@ static ssize_t out_write_index_show(struct device *dev,
 					  &outbound);
 	if (ret < 0)
 		return ret;
-	return sysfs_emit(buf, "%d\n", outbound.current_write_index);
+	return sysfs_emit(buf, "%u\n", outbound.current_write_index);
 }
 static DEVICE_ATTR_RO(out_write_index);
 
-- 
2.50.1