On 22/08/16 21:38, Arend Van Spriel wrote:
> On 22-8-2016 15:03, Nicolas Iooss wrote:
>> On 05/08/16 22:34, Nicolas Iooss wrote:
[...]
>>> Fixes: 6c404f34f2bd ("brcmfmac: Cleanup pmksa cache handling code")
>>> Cc: stable@xxxxxxxxxxxxxx
>
> Ah, so you did something wrong after all :-p. The email address should
> be 'stable@xxxxxxxxxxxxxxx'.
Thanks for spotting this! I'll fix this address.
>>> Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@xxxxxxx>
>>> ---
>>>
>>> scripts/checkpatch.pl reports a warning: "Prefer ether_addr_equal() or
>>> ether_addr_equal_unaligned() over memcmp()". Because some files in
>>> drivers/net/wireless/broadcom/brcm80211/brcmfmac/ still use memcmp()
>>> to compare addresses and because I do not know whether pmksa->bssid is
>>> always aligned, I did not follow this warning.
>
> As most of this is done in slow path, I prefer memcmp() as I do not want
> to check alignment for minimal performance gain.
OK.
>>> drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 4 ++--
>>> 1 file changed, 2 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
>>> index 2628d5e12c64..aceab77cd95a 100644
>>> --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
>>> +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
>>> @@ -3884,11 +3884,11 @@ brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev,
>>> if (!check_vif_up(ifp->vif))
>>> return -EIO;
>>>
>>> - brcmf_dbg(CONN, "del_pmksa - PMK bssid = %pM\n", &pmksa->bssid);
>>> + brcmf_dbg(CONN, "del_pmksa - PMK bssid = %pM\n", pmksa->bssid);
>>>
>>> npmk = le32_to_cpu(cfg->pmk_list.npmk);
>>> for (i = 0; i < npmk; i++)
>>> - if (!memcmp(&pmksa->bssid, &pmk[i].bssid, ETH_ALEN))
>>> + if (!memcmp(pmksa->bssid, &pmk[i].bssid, ETH_ALEN))
>
> I find '&pmk[i].bssid' confusing so maybe you could change it to
> '&pmk[i].bssid[0]' or 'pmk[i].bssid' as I think these two are
> essentially the same.
I agree the three ways of writing this share the same meaning. I'll send
a v2 with 'pmk[i].bssid'.
>
> Regards,
> Arend
Thanks for your review!
Nicolas
