netdev - Re: [PATCH v4] rtw88: Remove unnecessary check code

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Date:   Sat, 21 Aug 2021 19:20:07 +0000 (UTC)
From:   Kalle Valo <kvalo@...eaurora.org>
To:     Len Baker <len.baker@....com>
Cc:     Yan-Hsuan Chuang <tony0620emma@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Len Baker <len.baker@....com>,
        Greg KH <gregkh@...uxfoundation.org>,
        Brian Norris <briannorris@...omium.org>,
        Pkshih <pkshih@...ltek.com>, linux-wireless@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4] rtw88: Remove unnecessary check code

Len Baker <len.baker@....com> wrote:

> The rtw_pci_init_rx_ring function is only ever called with a fixed
> constant or RTK_MAX_RX_DESC_NUM for the "len" argument. Since this
> constant is defined as 512, the "if (len > TRX_BD_IDX_MASK)" check
> can never happen (TRX_BD_IDX_MASK is defined as GENMASK(11, 0) or in
> other words as 4095).
> 
> So, remove this check.
> 
> The true motivation for this patch is to silence a false Coverity
> warning.
> 
> Reviewed-by: Brian Norris <briannorris@...omium.org>
> Signed-off-by: Len Baker <len.baker@....com>

Patch applied to wireless-drivers-next.git, thanks.

d816ce8744db rtw88: Remove unnecessary check code

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20210731163546.10753-1-len.baker@gmx.com/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches