gadget: Use vsprintf extention %pf with builtin_return_address
Emit the function name not the address when possible.
builtin_return_address() gives an address. When building
a kernel with CONFIG_KALLSYMS, emit the actual function
name not the address.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c
index 6597a68..a553bee 100644
--- a/drivers/usb/gadget/u_serial.c
+++ b/drivers/usb/gadget/u_serial.c
@@ -920,7 +920,7 @@
unsigned long flags;
int status;
- pr_vdebug("gs_put_char: (%d,%p) char=0x%x, called from %p\n",
+ pr_vdebug("gs_put_char: (%d,%p) char=0x%x, called from %pf\n",
port->port_num, tty, ch, __builtin_return_address(0));
spin_lock_irqsave(&port->port_lock, flags);