redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

cfg80211: always shut down on HW rfkill 

When the RFKILL subsystem isn't available, then rfkill_blocked()
always returns false. In the case of hardware rfkill this will
be wrong though, as if the hardware reported being killed then
it cannot operate any longer.

Since we only ever call the rfkill_sync work in this case, just
rename it to rfkill_block and always pass "true" for the blocked
parameter, rather than passing rfkill_blocked().

We rely on the underlying driver to still reject any new attempt
to bring up the device by itself.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/20190830112451.21655-2-luca@coelho.fi
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
alistair/sunxi64-5.4-dsi
Johannes Berg 2019-08-30 14:24:44 +03:00
parent e5c0b0fff6
commit 3cfe91c4c3
3 changed files with 11 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
net/wireless/core.c
View File

@ -5,7 +5,7 @@
* Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
* Copyright 2013-2014 Intel Mobile Communications GmbH
* Copyright 2015-2017 Intel Deutschland GmbH
* Copyright (C) 2018 Intel Corporation
* Copyright (C) 2018-2019 Intel Corporation
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@ -300,12 +300,13 @@ static int cfg80211_rfkill_set_block(void *data, bool blocked)
return 0;
}
static void cfg80211_rfkill_sync_work(struct work_struct *work)
static void cfg80211_rfkill_block_work(struct work_struct *work)
{
struct cfg80211_registered_device *rdev;
rdev = container_of(work, struct cfg80211_registered_device, rfkill_sync);
cfg80211_rfkill_set_block(rdev, rfkill_blocked(rdev->rfkill));
rdev = container_of(work, struct cfg80211_registered_device,
rfkill_block);
cfg80211_rfkill_set_block(rdev, true);
}
static void cfg80211_event_work(struct work_struct *work)
@ -516,7 +517,7 @@ use_default_name:
return NULL;
}
INIT_WORK(&rdev->rfkill_sync, cfg80211_rfkill_sync_work);
INIT_WORK(&rdev->rfkill_block, cfg80211_rfkill_block_work);
INIT_WORK(&rdev->conn_work, cfg80211_conn_work);
INIT_WORK(&rdev->event_work, cfg80211_event_work);
@ -1061,7 +1062,7 @@ void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked)
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
if (rfkill_set_hw_state(rdev->rfkill, blocked))
schedule_work(&rdev->rfkill_sync);
schedule_work(&rdev->rfkill_block);
}
EXPORT_SYMBOL(wiphy_rfkill_set_hw_state);

2
net/wireless/core.h
View File

@ -28,7 +28,7 @@ struct cfg80211_registered_device {
/* rfkill support */
struct rfkill_ops rfkill_ops;
struct rfkill *rfkill;
struct work_struct rfkill_sync;
struct work_struct rfkill_block;
/* ISO / IEC 3166 alpha2 for which this device is receiving
* country IEs on, this can help disregard country IEs from APs

5
net/wireless/wext-compat.c
View File

@ -7,6 +7,7 @@
* we directly assign the wireless handlers of wireless interfaces.
*
* Copyright 2008-2009 Johannes Berg <johannes@sipsolutions.net>
* Copyright (C) 2019 Intel Corporation
*/
#include <linux/export.h>
@ -864,8 +865,8 @@ static int cfg80211_wext_siwtxpower(struct net_device *dev,
}
}
} else {
rfkill_set_sw_state(rdev->rfkill, true);
schedule_work(&rdev->rfkill_sync);
if (rfkill_set_sw_state(rdev->rfkill, true))
schedule_work(&rdev->rfkill_block);
return 0;
}