[PATCH linux-next] fsi:(fsi-master-gpio)Convert sysfs sprintf/snprintf family to sysfs_emit

[PATCH linux-next] fsi:(fsi-master-gpio)Convert sysfs sprintf/snprintf family to sysfs_emit

[CGEL]

From: jing yangyang <jing.yangyang@zte.com.cn>

Fix the following coccicheck warning:
./drivers/fsi/fsi-master-gpio.c:721:8-16:WARNING:use scnprintf or sprintf

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: jing yangyang <jing.yangyang@zte.com.cn>
---
 drivers/fsi/fsi-master-gpio.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/fsi/fsi-master-gpio.c b/drivers/fsi/fsi-master-gpio.c
index 7d5f29b..865acb3 100644
--- a/drivers/fsi/fsi-master-gpio.c
+++ b/drivers/fsi/fsi-master-gpio.c
@@ -718,8 +718,7 @@ static ssize_t external_mode_show(struct device *dev,
 {
 	struct fsi_master_gpio *master = dev_get_drvdata(dev);
 
-	return snprintf(buf, PAGE_SIZE - 1, "%u\n",
-			master->external_mode ? 1 : 0);
+	return sysfs_emit(buf, "%u\n", master->external_mode ? 1 : 0);
 }
 
 static ssize_t external_mode_store(struct device *dev,
-- 
1.8.3.1

Re: [PATCH linux-next] fsi:(fsi-master-gpio)Convert sysfs sprintf/snprintf family to sysfs_emit

[Jeremy Kerr]

Hi,

> Fix the following coccicheck warning:
> ./drivers/fsi/fsi-master-gpio.c:721:8-16:WARNING:use scnprintf or
> sprintf

Looks good, but we may as well do the other cases (in fsi-core) at the
same time.

There's a cocci script in the initial sysfs_emit series:

  https://lore.kernel.org/lkml/c22b7006813b1776467a72e716a5970e9277b4b7.camel@perches.com/

Which gives me these additional changes:

diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c
index 59ddc9fd5bca..159db87a043d 100644
--- a/drivers/fsi/fsi-core.c
+++ b/drivers/fsi/fsi-core.c
@@ -818,7 +818,7 @@ static ssize_t slave_send_echo_show(struct device *dev,
 {
 	struct fsi_slave *slave = to_fsi_slave(dev);
 
-	return sprintf(buf, "%u\n", slave->t_send_delay);
+	return sysfs_emit(buf, "%u\n", slave->t_send_delay);
 }
 
 static ssize_t slave_send_echo_store(struct device *dev,
@@ -862,7 +862,7 @@ static ssize_t chip_id_show(struct device *dev,
 {
 	struct fsi_slave *slave = to_fsi_slave(dev);
 
-	return sprintf(buf, "%d\n", slave->chip_id);
+	return sysfs_emit(buf, "%d\n", slave->chip_id);
 }
 
 static DEVICE_ATTR_RO(chip_id);
@@ -873,7 +873,7 @@ static ssize_t cfam_id_show(struct device *dev,
 {
 	struct fsi_slave *slave = to_fsi_slave(dev);
 
-	return sprintf(buf, "0x%x\n", slave->cfam_id);
+	return sysfs_emit(buf, "0x%x\n", slave->cfam_id);
 }
 
 static DEVICE_ATTR_RO(cfam_id);

Do you want to include these in your patch too?

Cheers,


Jeremy