netdev - Re: [PATCH net-next] net/mlx4_en: avoid indirect call in TX completion

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Message-Id: <20200418.153112.1172624610803498181.davem@davemloft.net>
Date:   Sat, 18 Apr 2020 15:31:12 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     edumazet@...gle.com
Cc:     netdev@...r.kernel.org, eric.dumazet@...il.com,
        tariqt@...lanox.com, willemb@...gle.com
Subject: Re: [PATCH net-next] net/mlx4_en: avoid indirect call in TX
 completion

From: Eric Dumazet <edumazet@...gle.com>
Date: Wed, 15 Apr 2020 09:46:52 -0700

> Commit 9ecc2d86171a ("net/mlx4_en: add xdp forwarding and data write support")
> brought another indirect call in fast path.
> 
> Use INDIRECT_CALL_2() helper to avoid the cost of the indirect call
> when/if CONFIG_RETPOLINE=y
> 
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

I've decided to apply this to 'net' and queue it up for -stable, thanks.