From mboxrd@z Thu Jan  1 00:00:00 1970
From: hch@infradead.org (Christoph Hellwig)
Date: Wed, 28 Mar 2018 05:04:40 -0700
Subject: [PATCH 01/16] initrd: Add generic code path for common initrd
 unloading logic.
In-Reply-To: <20180324174458.26423-2-shea@shealevy.com>
References: <20180324174458.26423-1-shea@shealevy.com>
 <20180324174458.26423-2-shea@shealevy.com>
Message-ID: <20180328120440.GB1838@infradead.org>
To: linux-riscv@lists.infradead.org
List-Id: linux-riscv.lists.infradead.org

> +#ifdef CONFIG_INITRAMFS_GENERIC_UNLOAD
> +void free_initrd_mem(unsigned long start, unsigned long end)
> +{
> +       free_reserved_area((void *)start, (void *)end, -1, "initrd");
> +}
> +#endif

Given how trivial this is and how many architectures can use it I'd
reverse the polarity and add a CONFIG_HAVE_ARCH_FREE_INITRD_MEM
instead.