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    SubjectRe: [PATCH] riscv: kbuild: drop CONFIG_RISCV_ISA_C
    Please do not drop it.

    Compressed instruction extension has some specific overhead in small
    RISC-V FPGA softcore, especialy in the ones which can't implement the
    register file read in a asynchronous manner because of the FPGA
    technology.
    What are reasons to enforce RVC ?

    On Wed, Aug 7, 2019 at 2:29 PM Bin Meng <bmeng.cn@gmail.com> wrote:
    >
    > On Wed, Aug 7, 2019 at 10:30 AM Paul Walmsley <paul.walmsley@sifive.com> wrote:
    > >
    > >
    > > The baseline ISA support requirement for the RISC-V Linux kernel
    > > mandates compressed instructions, so it doesn't make sense for
    > > compressed instruction support to be configurable.
    > >
    > > Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
    > > Cc: Atish Patra <atish.patra@wdc.com>
    > >
    > > ---
    > > arch/riscv/Kconfig | 10 ----------
    > > arch/riscv/Makefile | 2 +-
    > > 2 files changed, 1 insertion(+), 11 deletions(-)
    > >
    >
    > Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
    >
    > _______________________________________________
    > linux-riscv mailing list
    > linux-riscv@lists.infradead.org
    > http://lists.infradead.org/mailman/listinfo/linux-riscv

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