This adds some hid log functions like hid_warn().

This backports the following commit:
commit 4291ee305e9bb0699504a66f0e2b7aefcf0512a5
Author: Joe Perches <[email protected]>
Date:   Thu Dec 9 19:29:03 2010 -0800

    HID: Add and use hid_<level>: dev_<level> equivalents

Signed-off-by: Hauke Mehrtens <[email protected]>
---
 backport/backport-include/linux/hid.h |   45 +++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/backport/backport-include/linux/hid.h 
b/backport/backport-include/linux/hid.h
index 22ff6f1..2cae9b7 100644
--- a/backport/backport-include/linux/hid.h
+++ b/backport/backport-include/linux/hid.h
@@ -34,4 +34,49 @@ extern bool hid_ignore(struct hid_device *);
        .bus = BUS_BLUETOOTH, .vendor = (ven), .product = (prod)
 #endif
 
+#ifndef hid_printk
+#define hid_printk(level, hid, fmt, arg...)            \
+       dev_printk(level, &(hid)->dev, fmt, ##arg)
+#endif
+
+#ifndef hid_emerg
+#define hid_emerg(hid, fmt, arg...)                    \
+       dev_emerg(&(hid)->dev, fmt, ##arg)
+#endif
+
+#ifndef hid_crit
+#define hid_crit(hid, fmt, arg...)                     \
+       dev_crit(&(hid)->dev, fmt, ##arg)
+#endif
+
+#ifndef hid_alert
+#define hid_alert(hid, fmt, arg...)                    \
+       dev_alert(&(hid)->dev, fmt, ##arg)
+#endif
+
+#ifndef hid_err
+#define hid_err(hid, fmt, arg...)                      \
+       dev_err(&(hid)->dev, fmt, ##arg)
+#endif
+
+#ifndef hid_notice
+#define hid_notice(hid, fmt, arg...)                   \
+       dev_notice(&(hid)->dev, fmt, ##arg)
+#endif
+
+#ifndef hid_warn
+#define hid_warn(hid, fmt, arg...)                     \
+       dev_warn(&(hid)->dev, fmt, ##arg)
+#endif
+
+#ifndef hid_info
+#define hid_info(hid, fmt, arg...)                     \
+       dev_info(&(hid)->dev, fmt, ##arg)
+#endif
+
+#ifndef hid_dbg
+#define hid_dbg(hid, fmt, arg...)                      \
+       dev_dbg(&(hid)->dev, fmt, ##arg)
+#endif
+
 #endif /* __BACKPORT_HID_H */
-- 
1.7.10.4

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