Bluetooth: Add bt_printk
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@perches.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/net/bluetooth/lib.c b/net/bluetooth/lib.c
index 4e7cf8b..86a6bed 100644
--- a/net/bluetooth/lib.c
+++ b/net/bluetooth/lib.c
@@ -150,3 +150,22 @@
}
}
EXPORT_SYMBOL(bt_to_errno);
+
+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);