Re: [PATCH v3 2/9] eal: don't allow legacy mode with in-memory mode

[Maxime Coquelin <maxime.coquelin@redhat.com>]

On 09/04/2018 05:15 PM, Anatoly Burakov wrote:
> In-memory mode was never meant to support legacy mode, because we
> cannot sort anonymous pages anyway.
> 
> Fixes: 72b49ff623c4 ("mem: support --in-memory mode")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
> ---
>   lib/librte_eal/common/eal_common_options.c | 6 ++++++
>   1 file changed, 6 insertions(+)
> 
> diff --git a/lib/librte_eal/common/eal_common_options.c b/lib/librte_eal/common/eal_common_options.c
> index dd5f97402..873099acc 100644
> --- a/lib/librte_eal/common/eal_common_options.c
> +++ b/lib/librte_eal/common/eal_common_options.c
> @@ -1390,6 +1390,12 @@ eal_check_common_options(struct internal_config *internal_cfg)
>   			"--"OPT_HUGE_UNLINK"\n");
>   		return -1;
>   	}
> +	if (internal_cfg->legacy_mem &&
> +			internal_cfg->in_memory) {
> +		RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
> +				"with --"OPT_IN_MEMORY"\n");

This is a general comment, as it is consistent with the style of the
file. I generally prefer not splitting error strings into multiple lines
even if it is longer than 80 chars, because it makes grepping for the 
error string more difficult.

> +		return -1;
> +	}
>   
>   	return 0;
>   }
> 

Other than that:
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>

Thanks,
Maxime