[dpdk-dev] [PATCH] arm: detect NEON by RTE_MACHINE_CPUFLAG_NEON flag only

[Thomas Monjalon]

2016-03-18 13:00, Jan Viktorin:
> The RTE_MACHINE_CPUFLAG_NEON was only a result of the gcc testing.
> However, the target CPU may not support NEON or the user can disable to
> use it (as it does not always improve the performance).
> 
> The RTE_MACHINE_CPUFLAG_NEON detection is now based on both, the
> __ARM_NEON_FP feature from gcc and CONFIG_RTE_ARCH_ARM_NEON from
> the .config. The memcpy implemention is driven by
> RTE_MACHINE_CPUFLAG_NEON, so the reason to disable neon is hidden for
> the actual code.
> 
> Signed-off-by: Jan Viktorin <viktorin at rehivetech.com>
> ---
> 
> I can also include this one:
> 
> examples/l3fwd/l3fwd_em.c:253:#elif defined(__ARM_NEON)

Yes please.
I will set my patch as superseded.