usb: gadget: select CONFIG_CRC32

commit d7889c2020e08caab0d7e36e947f642d91015bd0 upstream.

Without crc32 support, this driver fails to link:

arm-linux-gnueabi-ld: drivers/usb/gadget/function/f_eem.o: in function `eem_unwrap':
f_eem.c:(.text+0x11cc): undefined reference to `crc32_le'
arm-linux-gnueabi-ld: drivers/usb/gadget/function/f_ncm.o:f_ncm.c:(.text+0x1e40):
more undefined references to `crc32_le' follow

Fixes: 6d3865f9d41f ("usb: gadget: NCM: Add transmit multi-frame.")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210103214224.1996535-1-arnd@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 7e47e62..2d15257 100644 (file)
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -265,6 +265,7 @@ config USB_CONFIGFS_NCM
        depends on NET
        select USB_U_ETHER
        select USB_F_NCM
+       select CRC32
        help
          NCM is an advanced protocol for Ethernet encapsulation, allows
          grouping of several ethernet frames into one USB transfer and
@@ -314,6 +315,7 @@ config USB_CONFIGFS_EEM
        depends on NET
        select USB_U_ETHER
        select USB_F_EEM
+       select CRC32
        help
          CDC EEM is a newer USB standard that is somewhat simpler than CDC ECM
          and therefore can be supported by more hardware.  Technically ECM and