Hi, On 18-Oct-24 11:55 AM, chen zhang wrote: > Follow the advice in Documentation/filesystems/sysfs.rst: > show() should only use sysfs_emit() or sysfs_emit_at() when formatting > the value to be returned to user space. > > Signed-off-by: chen zhang <chenzhang@xxxxxxxxxx> > --- > drivers/platform/x86/eeepc-laptop.c | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) > > diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c > index 03319a80e114..ba36b7bf6dc4 100644 > --- a/drivers/platform/x86/eeepc-laptop.c > +++ b/drivers/platform/x86/eeepc-laptop.c You need to add a: #include <linux/sysfs.h> when using sysfs_emit() . Please send a v2 with this fixed and please don't forget to Cc: platform-driver-x86@xxxxxxxxxxxxxxx for the v2. Regards, Hans > @@ -285,7 +285,7 @@ static ssize_t show_sys_acpi(struct device *dev, int cm, char *buf) > > if (value < 0) > return -EIO; > - return sprintf(buf, "%d\n", value); > + return sysfs_emit(buf, "%d\n", value); > } > > #define EEEPC_ACPI_SHOW_FUNC(_name, _cm) \ > @@ -361,7 +361,7 @@ static ssize_t cpufv_show(struct device *dev, > > if (get_cpufv(eeepc, &c)) > return -ENODEV; > - return sprintf(buf, "%#x\n", (c.num << 8) | c.cur); > + return sysfs_emit(buf, "%#x\n", (c.num << 8) | c.cur); > } > > static ssize_t cpufv_store(struct device *dev, > @@ -393,7 +393,7 @@ static ssize_t cpufv_disabled_show(struct device *dev, > { > struct eeepc_laptop *eeepc = dev_get_drvdata(dev); > > - return sprintf(buf, "%d\n", eeepc->cpufv_disabled); > + return sysfs_emit(buf, "%d\n", eeepc->cpufv_disabled); > } > > static ssize_t cpufv_disabled_store(struct device *dev, > @@ -1025,7 +1025,7 @@ static ssize_t store_sys_hwmon(void (*set)(int), const char *buf, size_t count) > > static ssize_t show_sys_hwmon(int (*get)(void), char *buf) > { > - return sprintf(buf, "%d\n", get()); > + return sysfs_emit(buf, "%d\n", get()); > } > > #define EEEPC_SENSOR_SHOW_FUNC(_name, _get) \