netdev - Re: [net-next 11/15] net/mlx5e: Reduce number of heap allocated buffers for update stats

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Message-ID: <b692fdcf-e37e-9faa-5c06-af73dd52ee49@mellanox.com>
Date:   Wed, 21 Jun 2017 11:12:24 +0300
From:   Gal Pressman <galp@...lanox.com>
To:     David Laight <David.Laight@...LAB.COM>,
        'Saeed Mahameed' <saeedm@...lanox.com>,
        "David S. Miller" <davem@...emloft.net>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "kernel-team@...com" <kernel-team@...com>
Subject: Re: [net-next 11/15] net/mlx5e: Reduce number of heap allocated
 buffers for update stats


>> +	u32 in[MLX5_ST_SZ_DW(ppcnt_reg)] = {0};
> How big is that?
>
> Allocating large on-stack buffers is even worse.
Both PPCNT and MPCNT registers are 252 bytes.
I don't see a problem allocating them on the stack.