linux-kernel - [PATCH V2 0/5] hid: replace snprintf in show functions with sysfs

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Date:   Fri, 15 Oct 2021 04:07:27 -0700
From:   Qing Wang <wangqing@...o.com>
To:     Jiri Kosina <jikos@...nel.org>,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        Bruno Prémont <bonbons@...ux-vserver.org>,
        Stefan Achatz <erazor_de@...rs.sourceforge.net>,
        Jonathan Cameron <jic23@...nel.org>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-iio@...r.kernel.org
Cc:     Qing Wang <wangqing@...o.com>
Subject: [PATCH V2 0/5] hid: replace snprintf in show functions with sysfs_emit

According to Documentation/filesystems/sysfs.txt:
show() methods of device attributes should return the number
of bytes printed into the buffer. This is the return value of 
scnprintf(). snprintf() returns the length the resulting string.

So, show() should not use snprintf() when formatting 
the value to be returned to user space. 
Also, use sysfs_emit directly makes more sense.

Qing Wang (5):
  hid-lenovo: replace snprintf in show functions with sysfs_emit
  hid-picolcd: replace snprintf in show functions with sysfs_emit
  hid-roccat: replace snprintf in show functions with sysfs_emit
  hid-sensor: replace snprintf in show functions with sysfs_emit
  hid-sony: replace snprintf in show functions with sysfs_emit

 drivers/hid/hid-lenovo.c          | 16 ++++++++--------
 drivers/hid/hid-picolcd_core.c    |  6 +++---
 drivers/hid/hid-roccat-isku.c     |  2 +-
 drivers/hid/hid-roccat-kone.c     | 12 ++++++------
 drivers/hid/hid-roccat-koneplus.c |  4 ++--
 drivers/hid/hid-roccat-kovaplus.c | 10 +++++-----
 drivers/hid/hid-roccat-pyra.c     |  6 +++---
 drivers/hid/hid-sensor-custom.c   |  2 +-
 drivers/hid/hid-sony.c            |  6 +++---
 9 files changed, 32 insertions(+), 32 deletions(-)

-- 
2.7.4