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usb: gadget: select CONFIG_CRC32

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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>
This commit is contained in:
Arnd Bergmann 2021-01-03 22:42:17 +01:00 committed by Greg Kroah-Hartman
parent 7043e311a5
commit d7889c2020
1 changed files with 2 additions and 0 deletions
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2
drivers/usb/gadget/Kconfig
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@ -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