linux-kernel - Re: [PATCH 6/6] wifi: ath10k: remove duplicate memset() in 10.4 TDLS peer update

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Message-ID: <fb5ad3db-5d69-449d-81db-036abf361f17@embeddedor.com>
Date:   Wed, 13 Dec 2023 14:20:06 -0600
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Jeff Johnson <quic_jjohnson@...cinc.com>,
        Kalle Valo <kvalo@...nel.org>
Cc:     Kees Cook <keescook@...omium.org>, ath10k@...ts.infradead.org,
        linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 6/6] wifi: ath10k: remove duplicate memset() in 10.4 TDLS
 peer update



On 12/13/23 11:06, Jeff Johnson wrote:
> In [1] it was identified that in ath10k_wmi_10_4_gen_tdls_peer_update()
> the memset(skb->data, 0, sizeof(*cmd)) is unnecessary since function
> ath10k_wmi_alloc_skb() already zeroes skb->data, so remove it.
> 
> No functional changes, compile tested only.
> 
> [1] https://lore.kernel.org/linux-wireless/626ae2e7-66f8-423b-b17f-e75c1a6d29b3@embeddedor.com/
> 
> Signed-off-by: Jeff Johnson <quic_jjohnson@...cinc.com>

Reviewed-by: Gustavo A. R. Silva <gustavoars@...nel.org>

Thanks!
--
Gustavo

> ---
>   drivers/net/wireless/ath/ath10k/wmi.c | 2 --
>   1 file changed, 2 deletions(-)
> 
> diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
> index 4d5aadbc7159..0cfd9484c45e 100644
> --- a/drivers/net/wireless/ath/ath10k/wmi.c
> +++ b/drivers/net/wireless/ath/ath10k/wmi.c
> @@ -8918,8 +8918,6 @@ ath10k_wmi_10_4_gen_tdls_peer_update(struct ath10k *ar,
>   	if (!skb)
>   		return ERR_PTR(-ENOMEM);
>   
> -	memset(skb->data, 0, sizeof(*cmd));
> -
>   	cmd = (struct wmi_10_4_tdls_peer_update_cmd *)skb->data;
>   	cmd->vdev_id = __cpu_to_le32(arg->vdev_id);
>   	ether_addr_copy(cmd->peer_macaddr.addr, arg->addr);
>