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Message-ID: <202212051021451139126@zte.com.cn>
Date:   Mon, 5 Dec 2022 10:21:45 +0800 (CST)
From:   <ye.xingchen@....com.cn>
To:     <leon@...nel.org>, <davem@...emloft.net>
Cc:     <ecree.xilinx@...il.com>, <habetsm.xilinx@...il.com>,
        <edumazet@...gle.com>, <kuba@...nel.org>, <pabeni@...hat.com>,
        <petrm@...dia.com>, <khalasa@...p.pl>, <shayagr@...zon.com>,
        <wsa+renesas@...g-engineering.com>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH net-next v2] sfc: use sysfs_emit() to instead of scnprintf()

From: ye xingchen <ye.xingchen@....com.cn>

Follow the advice of the Documentation/filesystems/sysfs.rst and show()
should only use sysfs_emit() or sysfs_emit_at() when formatting the
value to be returned to user space.

Signed-off-by: ye xingchen <ye.xingchen@....com.cn>
---
v1 -> v2
Fix the Subject.
 drivers/net/ethernet/sfc/efx_common.c       | 2 +-
 drivers/net/ethernet/sfc/siena/efx_common.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/sfc/efx_common.c b/drivers/net/ethernet/sfc/efx_common.c
index c2224e41a694..cc30524c2fe4 100644
--- a/drivers/net/ethernet/sfc/efx_common.c
+++ b/drivers/net/ethernet/sfc/efx_common.c
@@ -1164,7 +1164,7 @@ static ssize_t mcdi_logging_show(struct device *dev,
 	struct efx_nic *efx = dev_get_drvdata(dev);
 	struct efx_mcdi_iface *mcdi = efx_mcdi(efx);

-	return scnprintf(buf, PAGE_SIZE, "%d\n", mcdi->logging_enabled);
+	return sysfs_emit(buf, "%d\n", mcdi->logging_enabled);
 }

 static ssize_t mcdi_logging_store(struct device *dev,
diff --git a/drivers/net/ethernet/sfc/siena/efx_common.c b/drivers/net/ethernet/sfc/siena/efx_common.c
index 1fd396b00bfb..e4b294b8e9ac 100644
--- a/drivers/net/ethernet/sfc/siena/efx_common.c
+++ b/drivers/net/ethernet/sfc/siena/efx_common.c
@@ -1178,7 +1178,7 @@ static ssize_t mcdi_logging_show(struct device *dev,
 	struct efx_nic *efx = dev_get_drvdata(dev);
 	struct efx_mcdi_iface *mcdi = efx_mcdi(efx);

-	return scnprintf(buf, PAGE_SIZE, "%d\n", mcdi->logging_enabled);
+	return sysfs_emit(buf, "%d\n", mcdi->logging_enabled);
 }

 static ssize_t mcdi_logging_store(struct device *dev,
-- 
2.25.1

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