Re: [PATCH] mac80211: Make addr const in SET_IEEE80211_PERM_ADDR()

From: Souptick Joarder
Date: Wed Dec 30 2015 - 11:47:39 EST


HI Bjorn,

On Thu, Dec 24, 2015 at 2:03 PM, Bjorn Andersson <bjorn@xxxxxxx> 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@xxxxxxxxxxxxxx>
> ---
> 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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