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platform_kernel-5.15
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mt76x2: dfs: avoid tasklet scheduling during mt76x2_dfs_init_params() 

Substitute tasklet_kill with tasklet_disable/tasklet_enable in order to
guarantee dfs tasklet can not be executed during dfs parameter
initialization

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Lorenzo Bianconi 2018-01-09 14:13:10 +01:00 committed by Kalle Valo
parent 2340523646
commit 8c9f6491a3
2 changed files with 2 additions and 1 deletions
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1
drivers/net/wireless/mediatek/mt76/mt76x2_dfs.c
View File

@ -460,7 +460,6 @@ void mt76x2_dfs_init_params(struct mt76x2_dev *dev)
{
struct cfg80211_chan_def *chandef = &dev->mt76.chandef;
tasklet_kill(&dev->dfs_pd.dfs_tasklet);
if (chandef->chan->flags & IEEE80211_CHAN_RADAR) {
mt76x2_dfs_set_bbp_params(dev);
/* enable debug mode */

2
drivers/net/wireless/mediatek/mt76/mt76x2_main.c
View File

@ -127,6 +127,7 @@ mt76x2_set_channel(struct mt76x2_dev *dev, struct cfg80211_chan_def *chandef)
mt76_set_channel(&dev->mt76);
tasklet_disable(&dev->pre_tbtt_tasklet);
tasklet_disable(&dev->dfs_pd.dfs_tasklet);
cancel_delayed_work_sync(&dev->cal_work);
mt76x2_mac_stop(dev, true);
@ -139,6 +140,7 @@ mt76x2_set_channel(struct mt76x2_dev *dev, struct cfg80211_chan_def *chandef)
mt76x2_dfs_init_params(dev);
mt76x2_mac_resume(dev);
tasklet_enable(&dev->dfs_pd.dfs_tasklet);
tasklet_enable(&dev->pre_tbtt_tasklet);
return ret;