On 20/05/14 15:47, Andreas Herrmann wrote:
> From: David Daney <david.da...@cavium.com>
>
> The fast handler only supports 64-bit kernels.
>
> Signed-off-by: David Daney <david.da...@cavium.com>
> Signed-off-by: Andreas Herrmann <andreas.herrm...@caviumnetworks.com>
> ---
> arch/mips/mm/tlbex.c | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
> index ee88367..781e183 100644
> --- a/arch/mips/mm/tlbex.c
> +++ b/arch/mips/mm/tlbex.c
> @@ -1250,13 +1250,17 @@ static void build_r4000_tlb_refill_handler(void)
> unsigned int final_len;
> struct mips_huge_tlb_info htlb_info __maybe_unused;
> enum vmalloc64_mode vmalloc_mode __maybe_unused;
> -
> +#ifdef CONFIG_64BIT
> + bool is64bit = true;
> +#else
> + bool is64bit = false;
> +#endif
> memset(tlb_handler, 0, sizeof(tlb_handler));
> memset(labels, 0, sizeof(labels));
> memset(relocs, 0, sizeof(relocs));
> memset(final_handler, 0, sizeof(final_handler));
>
> - if ((scratch_reg >= 0 || scratchpad_available()) && use_bbit_insns()) {
> + if (is64bit && (scratch_reg >= 0 || scratchpad_available()) &&
> use_bbit_insns()) {
> htlb_info = build_fast_tlb_refill_handler(&p, &l, &r, K0, K1,
> scratch_reg);
> vmalloc_mode = refill_scratch;
>
This looks like a good place to use IS_ENABLED(CONFIG_64BIT) to reduce
ifdefery.
Cheers
James
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