linux-kernel - Re: [PATCH][next] Bluetooth: mgmt: Use struct

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Message-Id: <A80DE670-A0CB-49DE-9852-25B9F2AE6577@holtmann.org>
Date:   Tue, 26 Feb 2019 09:48:41 +0100
From:   Marcel Holtmann <marcel@...tmann.org>
To:     "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Cc:     Johan Hedberg <johan.hedberg@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        "open list:BLUETOOTH DRIVERS" <linux-bluetooth@...r.kernel.org>,
        netdev <netdev@...r.kernel.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] Bluetooth: mgmt: Use struct_size() helper

Hi Gustavo,

> Make use of the struct_size() helper instead of an open-coded version
> in order to avoid any potential type mistakes, in particular in the
> context in which this code is being used.
> 
> So, change the following form:
> 
> sizeof(*rp) + (sizeof(rp->entry[0]) * count);
> 
> to :
> 
> struct_size(rp, entry, count)
> 
> Notice that, in this case, variable rp_len is not necessary, hence
> it is removed.
> 
> This code was detected with the help of Coccinelle.
> 
> Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
> ---
> net/bluetooth/mgmt.c | 8 +++-----
> 1 file changed, 3 insertions(+), 5 deletions(-)

patch has been applied to bluetooth-next tree.

Regards

Marcel