Add a local logging function to emit bluetooth specific
messages. Using vsprintf extension %pV saves code/text
space.
Convert the current BT_INFO and BT_ERR macros to use bt_printk.
Remove __func__ from BT_ERR macro (and the uses).
Prefix "Bluetooth: " to BT_ERR
Remove __func__ from BT_DBG as function can be prefixed when
using dynamic_debug.
With allyesconfig:
text data bss dec hex filename
129956 8632 36096 174684 2aa5c drivers/bluetooth/built-in.o.new2
134402 8632 36064 179098 2bb9a drivers/bluetooth/built-in.o.old
14778 1012 3408 19198 4afe net/bluetooth/bnep/built-in.o.new2
15067 1012 3408 19487 4c1f net/bluetooth/bnep/built-in.o.old
346595 19163 86080 451838 6e4fe net/bluetooth/built-in.o.new2
353751 19163 86064 458978 700e2 net/bluetooth/built-in.o.old
18483 1172 4264 23919 5d6f net/bluetooth/cmtp/built-in.o.new2
18927 1172 4264 24363 5f2b net/bluetooth/cmtp/built-in.o.old
19237 1172 5152 25561 63d9 net/bluetooth/hidp/built-in.o.new2
19581 1172 5152 25905 6531 net/bluetooth/hidp/built-in.o.old
59461 3884 14464 77809 12ff1 net/bluetooth/rfcomm/built-in.o.new2
61206 3884 14464 79554 136c2 net/bluetooth/rfcomm/built-in.o.old
with x86 defconfig (and just bluetooth):
$ size net/bluetooth/built-in.o.defconfig.*
text data bss dec hex filename
66358 933 100 67391 1073f net/bluetooth/built-in.o.defconfig.new
66643 933 100 67676 1085c net/bluetooth/built-in.o.defconfig.old
Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
---
include/net/bluetooth/bluetooth.h | 9 ++++++---
net/bluetooth/lib.c | 19 +++++++++++++++++++
2 files changed, 25 insertions(+), 3 deletions(-)
diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index 7bccaf9..042591c 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -76,9 +76,12 @@ struct bt_power {
#define BT_POWER_FORCE_ACTIVE_OFF 0
#define BT_POWER_FORCE_ACTIVE_ON 1
-#define BT_INFO(fmt, arg...) printk(KERN_INFO "Bluetooth: " fmt "\n" , ## arg)
-#define BT_ERR(fmt, arg...) printk(KERN_ERR "%s: " fmt "\n" , __func__ , ## arg)
-#define BT_DBG(fmt, arg...) pr_debug("%s: " fmt "\n" , __func__ , ## arg)
+__attribute__((format (printf, 2, 3)))
+int bt_printk(const char *level, const char *fmt, ...);
+
+#define BT_INFO(fmt, arg...) bt_printk(KERN_INFO, pr_fmt(fmt), ##arg)
+#define BT_ERR(fmt, arg...) bt_printk(KERN_ERR, pr_fmt(fmt), ##arg)
+#define BT_DBG(fmt, arg...) pr_debug(fmt "\n", ##arg)
/* Connection and socket states */
enum {
diff --git a/net/bluetooth/lib.c b/net/bluetooth/lib.c
index b826d1b..fdb3ec3 100644
--- a/net/bluetooth/lib.c
+++ b/net/bluetooth/lib.c
@@ -150,3 +150,22 @@ int bt_err(__u16 code)
}
}
EXPORT_SYMBOL(bt_err);
+
+int bt_printk(const char *level, const char *format, ...)
+{
+ struct va_format vaf;
+ va_list args;
+ int r;
+
+ va_start(args, format);
+
+ vaf.fmt = format;
+ vaf.va = &args;
+
+ r = printk("%sbluetooth: %pV\n", level, &vaf);
+
+ va_end(args);
+
+ return r;
+}
+EXPORT_SYMBOL(bt_printk);
--
1.7.6.rc1
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