The commit a390bef7db1f ("usb: gadget: fsl_mxc_udc: Remove the driver") dropped the ARCH_MXC dependency from USB_FSL_USB2, leaving it depending solely on FSL_SOC. FSL_SOC is powerpc only; it was briefly available on ARM in 2014 but was removed by commit cfd074ad8600 ("ARM: imx: temporarily remove CONFIG_SOC_FSL from LS1021A"). Therefore the driver can no longer be enabled on ARM platforms. This appears to be a mistake as arm64's ARCH_LAYERSCAPE and arm32 SOC_LS1021A SoCs use this symbol. It's enabled in these defconfigs: arch/arm/configs/imx_v6_v7_defconfig:CONFIG_USB_FSL_USB2=y arch/arm/configs/multi_v7_defconfig:CONFIG_USB_FSL_USB2=y arch/powerpc/configs/mgcoge_defconfig:CONFIG_USB_FSL_USB2=y arch/powerpc/configs/mpc512x_defconfig:CONFIG_USB_FSL_USB2=y To fix, expand the dependencies so USB_FSL_USB2 can be enabled on the ARM platforms, and with COMPILE_TEST. Fixes: a390bef7db1f ("usb: gadget: fsl_mxc_udc: Remove the driver") Signed-off-by: Joel Stanley <joel@jms.id.au> Link: https://lore.kernel.org/r/20210610034957.93376-1-joel@jms.id.au Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.
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