Per filesystems/sysfs.rst, show() should only use sysfs_emit()
or sysfs_emit_at() when formatting the value to be returned to user space.
coccinelle complains that there are still a couple of functions that use
snprintf(). Convert them to sysfs_emit().
sprintf() will be converted as weel if they have.
Generally, this patch is generated by
make coccicheck M=<path/to/file> MODE=patch \
COCCI=scripts/coccinelle/api/device_attr_show.cocci
No functional change intended
CC: Thomas Gleixner <[email protected]>
Signed-off-by: Li Zhijian <[email protected]>
---
This is a part of the work "Fix coccicheck device_attr_show warnings"[1]
Split them per subsystem so that the maintainer can review it easily
[1] https://lore.kernel.org/lkml/[email protected]/
---
kernel/time/clockevents.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index a7ca458cdd9c..60a6484831b1 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -677,7 +677,7 @@ static ssize_t current_device_show(struct device *dev,
raw_spin_lock_irq(&clockevents_lock);
td = tick_get_tick_dev(dev);
if (td && td->evtdev)
- count = snprintf(buf, PAGE_SIZE, "%s\n", td->evtdev->name);
+ count = sysfs_emit(buf, "%s\n", td->evtdev->name);
raw_spin_unlock_irq(&clockevents_lock);
return count;
}
--
2.29.2
The following commit has been merged into the timers/core branch of tip:
Commit-ID: 98fe0fcb326a923740cb8900aa7ed7fe538c984a
Gitweb: https://git.kernel.org/tip/98fe0fcb326a923740cb8900aa7ed7fe538c984a
Author: Li Zhijian <[email protected]>
AuthorDate: Thu, 14 Mar 2024 18:04:02 +08:00
Committer: Thomas Gleixner <[email protected]>
CommitterDate: Tue, 09 Apr 2024 12:32:37 +02:00
clockevents: Convert s[n]printf() to sysfs_emit()
Per filesystems/sysfs.rst, show() should only use sysfs_emit() or
sysfs_emit_at() when formatting the value to be returned to user space.
coccinelle complains that there are still a couple of functions that use
snprintf(). Convert them to sysfs_emit().
Signed-off-by: Li Zhijian <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
---
kernel/time/clockevents.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index a7ca458..60a6484 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -677,7 +677,7 @@ static ssize_t current_device_show(struct device *dev,
raw_spin_lock_irq(&clockevents_lock);
td = tick_get_tick_dev(dev);
if (td && td->evtdev)
- count = snprintf(buf, PAGE_SIZE, "%s\n", td->evtdev->name);
+ count = sysfs_emit(buf, "%s\n", td->evtdev->name);
raw_spin_unlock_irq(&clockevents_lock);
return count;
}