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These three kconfig cleanups were found by ulfalyzer. They're all things we were selecting that were undefined, either because they'd been remove upstream or are part of a future RISC-V submission. * ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE is obselete. * RISCV_IRQ_INTC is the old name for our interrupt controller driver, it'll be changed for the final submission and doesn't exist now. * ARCH_WANT_OPTIONAL_GPIOLIB is obselete.
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.