netdev - Re: [PATCH] mac80211: Make addr const in SET_IEEE80211_PERM

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Date:	Wed, 30 Dec 2015 22:17:04 +0530
From:	Souptick Joarder <jrdr.linux@...il.com>
To:	Bjorn Andersson <bjorn@...o.se>
Cc:	Johannes Berg <johannes@...solutions.net>,
	"David S. Miller" <davem@...emloft.net>,
	linux-wireless <linux-wireless@...r.kernel.org>,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mac80211: Make addr const in SET_IEEE80211_PERM_ADDR()

HI Bjorn,

On Thu, Dec 24, 2015 at 2:03 PM, Bjorn Andersson <bjorn@...o.se> wrote:
> Make the addr parameter const in SET_IEEE80211_PERM_ADDR() to save
> clients from having to cast away a const qualifier.
>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@...ymobile.com>
> ---
>  include/net/mac80211.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/include/net/mac80211.h b/include/net/mac80211.h
> index 7c30faff245f..a6f3c9c4b7c2 100644
> --- a/include/net/mac80211.h
> +++ b/include/net/mac80211.h
> @@ -2167,7 +2167,7 @@ static inline void SET_IEEE80211_DEV(struct ieee80211_hw *hw, struct device *dev
>   * @hw: the &struct ieee80211_hw to set the MAC address for
>   * @addr: the address to set
>   */
> -static inline void SET_IEEE80211_PERM_ADDR(struct ieee80211_hw *hw, u8 *addr)
> +static inline void SET_IEEE80211_PERM_ADDR(struct ieee80211_hw *hw, const u8 *addr)

I guess without const or with const doesn't make much difference here.
Correct me if I am wrong.
>  {
>         memcpy(hw->wiphy->perm_addr, addr, ETH_ALEN);
>  }
> --
> 2.5.0
>
> --
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-Souptick
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