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    Subject[PATCH AUTOSEL 4.19 28/60] riscv: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO
    Date
    From: Zong Li <zong.li@sifive.com>

    [ Upstream commit b5fca7c55f9fbab5ad732c3bce00f31af6ba5cfa ]

    AT_VECTOR_SIZE_ARCH should be defined with the maximum number of
    NEW_AUX_ENT entries that ARCH_DLINFO can contain, but it wasn't defined
    for RISC-V at all even though ARCH_DLINFO will contain one NEW_AUX_ENT
    for the VDSO address.

    Signed-off-by: Zong Li <zong.li@sifive.com>
    Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
    Reviewed-by: Pekka Enberg <penberg@kernel.org>
    Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    arch/riscv/include/uapi/asm/auxvec.h | 3 +++
    1 file changed, 3 insertions(+)

    diff --git a/arch/riscv/include/uapi/asm/auxvec.h b/arch/riscv/include/uapi/asm/auxvec.h
    index 1376515547cda..ed7bf7c7add5f 100644
    --- a/arch/riscv/include/uapi/asm/auxvec.h
    +++ b/arch/riscv/include/uapi/asm/auxvec.h
    @@ -21,4 +21,7 @@
    /* vDSO location */
    #define AT_SYSINFO_EHDR 33

    +/* entries in ARCH_DLINFO */
    +#define AT_VECTOR_SIZE_ARCH 1
    +
    #endif /* _UAPI_ASM_RISCV_AUXVEC_H */
    --
    2.25.1
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