netdev - [PATCH v2 06/15] spi: Use sysfs_emit() to instead of s*printf()

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20230710154932.68377-7-andriy.shevchenko@linux.intel.com>
Date: Mon, 10 Jul 2023 18:49:23 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Mark Brown <broonie@...nel.org>,
	Cristian Ciocaltea <cristian.ciocaltea@...labora.com>,
	Yang Yingliang <yangyingliang@...wei.com>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Amit Kumar Mahapatra via Alsa-devel <alsa-devel@...a-project.org>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Tharun Kumar P <tharunkumar.pasumarthi@...rochip.com>,
	Vijaya Krishna Nivarthi <quic_vnivarth@...cinc.com>,
	Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
	linux-spi@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-amlogic@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	linux-arm-msm@...r.kernel.org,
	linux-rockchip@...ts.infradead.org,
	linux-riscv@...ts.infradead.org,
	linux-stm32@...md-mailman.stormreply.com,
	linux-trace-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Cc: Sanjay R Mehta <sanju.mehta@....com>,
	Radu Pirea <radu_nicolae.pirea@....ro>,
	Nicolas Ferre <nicolas.ferre@...rochip.com>,
	Alexandre Belloni <alexandre.belloni@...tlin.com>,
	Claudiu Beznea <claudiu.beznea@...rochip.com>,
	Tudor Ambarus <tudor.ambarus@...aro.org>,
	Serge Semin <fancer.lancer@...il.com>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	NXP Linux Team <linux-imx@....com>,
	Kevin Hilman <khilman@...libre.com>,
	Jerome Brunet <jbrunet@...libre.com>,
	Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Andy Gross <agross@...nel.org>,
	Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konrad.dybcio@...aro.org>,
	Heiko Stuebner <heiko@...ech.de>,
	Palmer Dabbelt <palmer@...belt.com>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Orson Zhai <orsonzhai@...il.com>,
	Baolin Wang <baolin.wang@...ux.alibaba.com>,
	Chunyan Zhang <zhang.lyra@...il.com>,
	Alain Volmat <alain.volmat@...s.st.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Max Filippov <jcmvbkbc@...il.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	Richard Cochran <richardcochran@...il.com>
Subject: [PATCH v2 06/15] spi: Use sysfs_emit() to instead of s*printf()

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: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/spi/spi.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 46cbda383228..cfb1c985d940 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -64,7 +64,7 @@ modalias_show(struct device *dev, struct device_attribute *a, char *buf)
 	if (len != -ENODEV)
 		return len;
 
-	return sprintf(buf, "%s%s\n", SPI_MODULE_PREFIX, spi->modalias);
+	return sysfs_emit(buf, "%s%s\n", SPI_MODULE_PREFIX, spi->modalias);
 }
 static DEVICE_ATTR_RO(modalias);
 
@@ -89,7 +89,7 @@ static ssize_t driver_override_show(struct device *dev,
 	ssize_t len;
 
 	device_lock(dev);
-	len = snprintf(buf, PAGE_SIZE, "%s\n", spi->driver_override ? : "");
+	len = sysfs_emit(buf, "%s\n", spi->driver_override ? : "");
 	device_unlock(dev);
 	return len;
 }
@@ -2782,8 +2782,7 @@ static ssize_t slave_show(struct device *dev, struct device_attribute *attr,
 	struct device *child;
 
 	child = device_find_any_child(&ctlr->dev);
-	return sprintf(buf, "%s\n",
-		       child ? to_spi_device(child)->modalias : NULL);
+	return sysfs_emit(buf, "%s\n", child ? to_spi_device(child)->modalias : NULL);
 }
 
 static ssize_t slave_store(struct device *dev, struct device_attribute *attr,
-- 
2.40.0.1.gaa8946217a0b