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Date:   Tue, 6 Aug 2019 23:51:19 -0700
From:   Christoph Hellwig <hch@infradead.org>
To:     Atish Patra <atish.patra@wdc.com>
Cc:     linux-kernel@vger.kernel.org, Mark Rutland <mark.rutland@arm.com>,
        devicetree@vger.kernel.org, Albert Ou <aou@eecs.berkeley.edu>,
        Daniel Lezcano <daniel.lezcano@linaro.org>,
        Alan Kao <alankao@andestech.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Anup Patel <anup.patel@wdc.com>,
        Johan Hovold <johan@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Palmer Dabbelt <palmer@sifive.com>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        linux-riscv@lists.infradead.org, Enrico Weigelt <info@metux.net>,
        Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH v4 2/4] RISC-V: Add riscv_isa reprensenting ISA features
 common across CPUs
Message-ID: <20190807065119.GA7825@infradead.org>
References: <20190803042723.7163-1-atish.patra@wdc.com>
 <20190803042723.7163-3-atish.patra@wdc.com>
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On Fri, Aug 02, 2019 at 09:27:21PM -0700, Atish Patra wrote:
> From: Anup Patel <anup.patel@wdc.com>
> 
> This patch adds riscv_isa integer to represent ISA features common
> across all CPUs. The riscv_isa is not same as elf_hwcap because
> elf_hwcap will only have ISA features relevant for user-space apps
> whereas riscv_isa will have ISA features relevant to both kernel
> and user-space apps.
> 
> One of the use case is KVM hypervisor where riscv_isa will be used
> to do following operations:

Please add this to the kvm series.  Right now this is just dead code.