netdev - Re: [PATCH v3 17/24] ethernet: remove redundant memset

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Date:   Mon, 15 Jul 2019 11:06:46 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     huangfq.daxian@...il.com
Cc:     jcliburn@...il.com, chris.snook@...il.com,
        michael.chan@...adcom.com, vishal@...lsio.com, fugang.duan@....com,
        cooldavid@...ldavid.org, mlindner@...vell.com,
        stephen@...workplumber.org, tariqt@...lanox.com,
        saeedm@...lanox.com, leon@...nel.org, jiri@...lanox.com,
        idosch@...lanox.com, jdmason@...zu.us, manishc@...vell.com,
        rahulv@...vell.com, GR-Linux-NIC-Dev@...vell.com, chessman@....org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-rdma@...r.kernel.org
Subject: Re: [PATCH v3 17/24] ethernet: remove redundant memset

From: Fuqian Huang <huangfq.daxian@...il.com>
Date: Mon, 15 Jul 2019 11:19:11 +0800

> kvzalloc already zeroes the memory during the allocation.
> pci_alloc_consistent calls dma_alloc_coherent directly.
> In commit 518a2f1925c3
> ("dma-mapping: zero memory returned from dma_alloc_*"),
> dma_alloc_coherent has already zeroed the memory.
> So the memset after these function is not needed.
> 
> Signed-off-by: Fuqian Huang <huangfq.daxian@...il.com>

Applied.