usb: gadget: use $(srctree) instead of $(PWD) for includes

Using $(PWD) breaks builds when make was invoked from outside
of the kernel tree.

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

3 files changed, 6 insertions, 6 deletions

diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
index a186afeaa700..598a67d6ba05 100644
--- a/drivers/usb/gadget/Makefile
+++ b/drivers/usb/gadget/Makefile
@@ -3,7 +3,7 @@
 #
 subdir-ccflags-$(CONFIG_USB_GADGET_DEBUG)       := -DDEBUG
 subdir-ccflags-$(CONFIG_USB_GADGET_VERBOSE)     += -DVERBOSE_DEBUG
-ccflags-y                               += -I$(PWD)/drivers/usb/gadget/udc
+ccflags-y                               += -I$(srctree)/drivers/usb/gadget/udc
 
 obj-$(CONFIG_USB_LIBCOMPOSITE)  += libcomposite.o
 libcomposite-y                  := usbstring.o config.o epautoconf.o
diff --git a/drivers/usb/gadget/function/Makefile b/drivers/usb/gadget/function/Makefile
index edb6dfa91932..a49fdf7b59e1 100644
--- a/drivers/usb/gadget/function/Makefile
+++ b/drivers/usb/gadget/function/Makefile
@@ -2,8 +2,8 @@
 # USB peripheral controller drivers
 #
 
-ccflags-y                       := -I$(PWD)/drivers/usb/gadget/
-ccflags-y                       += -I$(PWD)/drivers/usb/gadget/udc/
+ccflags-y                       := -I$(srctree)/drivers/usb/gadget/
+ccflags-y                       += -I$(srctree)/drivers/usb/gadget/udc/
 
 # USB Functions
 usb_f_acm-y                     := f_acm.o
diff --git a/drivers/usb/gadget/legacy/Makefile b/drivers/usb/gadget/legacy/Makefile
index a11aad5635df..7f485f25705e 100644
--- a/drivers/usb/gadget/legacy/Makefile
+++ b/drivers/usb/gadget/legacy/Makefile
@@ -2,9 +2,9 @@
 # USB gadget drivers
 #
 
-ccflags-y                       := -I$(PWD)/drivers/usb/gadget/
-ccflags-y                       += -I$(PWD)/drivers/usb/gadget/udc/
-ccflags-y                       += -I$(PWD)/drivers/usb/gadget/function/
+ccflags-y                       := -I$(srctree)/drivers/usb/gadget/
+ccflags-y                       += -I$(srctree)/drivers/usb/gadget/udc/
+ccflags-y                       += -I$(srctree)/drivers/usb/gadget/function/
 
 g_zero-y                        := zero.o
 g_audio-y                       := audio.o