2017-02-15 19:01:39

by Gucea Doru

[permalink] [raw]
Subject: [PATCH 1/2] mac80211: Update the driver with beacon info constantly

From: Doru Gucea <[email protected]>

Once the mac80211 layer receives a beacon, it should send a notification
to the driver. This will allow finer timining control in case of drivers
that need a correct estimation for the arrival time of a beacon.

Signed-off-by: Doru Gucea <[email protected]>
---
net/mac80211/mlme.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index cd7e55e..0b8eed5 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -3536,6 +3536,12 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
sdata->vif.bss_conf.sync_dtim_count = 0;
}

+ /* trigger hardware timers adjustment
+ * this needs to be done before beacon filtering
+ */
+ changed |= BSS_CHANGED_BEACON_INFO;
+ ieee80211_bss_info_change_notify(sata, changed);
+
if (ncrc == ifmgd->beacon_crc && ifmgd->beacon_crc_valid)
return;
ifmgd->beacon_crc = ncrc;
--
1.9.1


2017-02-15 20:42:20

by kernel test robot

[permalink] [raw]
Subject: Re: [PATCH 1/2] mac80211: Update the driver with beacon info constantly

Hi Doru,

[auto build test ERROR on mac80211-next/master]
[also build test ERROR on v4.10-rc8 next-20170215]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Doru/mac80211-Update-the-driver-with-beacon-info-constantly/20170216-034614
base: https://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git master
config: x86_64-lkp (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64

All errors (new ones prefixed by >>):

net/mac80211/mlme.c: In function 'ieee80211_rx_mgmt_beacon':
>> net/mac80211/mlme.c:3555:35: error: 'sata' undeclared (first use in this function)
ieee80211_bss_info_change_notify(sata, changed);
^~~~
net/mac80211/mlme.c:3555:35: note: each undeclared identifier is reported only once for each function it appears in

vim +/sata +3555 net/mac80211/mlme.c

3549 }
3550
3551 /* trigger hardware timers adjustment
3552 * this needs to be done before beacon filtering
3553 */
3554 changed |= BSS_CHANGED_BEACON_INFO;
> 3555 ieee80211_bss_info_change_notify(sata, changed);
3556
3557 if (ncrc == ifmgd->beacon_crc && ifmgd->beacon_crc_valid)
3558 return;

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation


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