On Wed, Dec 07, 2022 at 10:03:19AM +0800, ye.xingchen@xxxxxxxxxx wrote: > From: ye xingchen <ye.xingchen@xxxxxxxxxx> > > 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@xxxxxxxxxx> I think it would be better, if you provide one cover letter as 0/3 patch and three nested real patches to each iio/accel driver which you want to rework: adxl372, bma180, mma8452. Or fix all iio drivers (no only accel) and send all of these changes as nested patches for one cover letter. Please refer to https://www.kernel.org/doc/html/latest/process/submitting-patches.html and use the following commands to generate such patches hierarchy: $ git format-patch --cover-letter -o patches ... $ git send-email \ --annotate \ --to="john.doe@xxxxxxxxxx" \ --cc="linux-iio@xxxxxxxxxxxxxxx" \ --cc="linux-kernel@xxxxxxxxxxxxxxx" \ --smtp-debug 1 \ patches/* > --- > drivers/iio/accel/bma180.c | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) > > diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c > index eb697eeb4301..9e3e5dfdded7 100644 > --- a/drivers/iio/accel/bma180.c > +++ b/drivers/iio/accel/bma180.c > @@ -488,8 +488,7 @@ static ssize_t bma180_show_avail(char *buf, const int *vals, unsigned int n, > for (i = 0; i < n; i++) { > if (!vals[i]) > continue; > - len += scnprintf(buf + len, PAGE_SIZE - len, > - micros ? "0.%06d " : "%d ", vals[i]); > + len += sysfs_emit_at(buf, len, micros ? "0.%06d " : "%d ", vals[i]); > } > buf[len - 1] = '\n'; > > -- > 2.25.1 -- Thank you, Dmitry