diff options
Diffstat (limited to 'package/kernel/mac80211/patches/333-ath10k-Fix-soft-lockup-during-firmware-crash-hw-rest.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/333-ath10k-Fix-soft-lockup-during-firmware-crash-hw-rest.patch | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/package/kernel/mac80211/patches/333-ath10k-Fix-soft-lockup-during-firmware-crash-hw-rest.patch b/package/kernel/mac80211/patches/333-ath10k-Fix-soft-lockup-during-firmware-crash-hw-rest.patch deleted file mode 100644 index 89ff1fcfd8..0000000000 --- a/package/kernel/mac80211/patches/333-ath10k-Fix-soft-lockup-during-firmware-crash-hw-rest.patch +++ /dev/null @@ -1,49 +0,0 @@ -From: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com> -Date: Wed, 30 Nov 2016 10:59:29 +0530 -Subject: [PATCH] ath10k: Fix soft lockup during firmware crash/hw-restart - -During firmware crash (or) user requested manual restart -the system gets into a soft lock up state because of the -below root cause. - -During user requested hardware restart / firmware crash -the system goes into a soft lockup state as 'napi_synchronize' -is called after 'napi_disable' (which sets 'NAPI_STATE_SCHED' -bit) and it sleeps into infinite loop as it waits for -'NAPI_STATE_SCHED' to be cleared. This condition is hit because -'ath10k_hif_stop' is called twice as below (resulting in calling -'napi_synchronize' after 'napi_disable') - -'ath10k_core_restart' -> 'ath10k_hif_stop' (ATH10K_STATE_ON) -> --> 'ieee80211_restart_hw' -> 'ath10k_start' -> 'ath10k_halt' -> -'ath10k_core_stop' -> 'ath10k_hif_stop' (ATH10K_STATE_RESTARTING) - -Fix this by calling 'ath10k_halt' in ath10k_core_restart itself -as it makes more sense before informing mac80211 to restart h/w -Also remove 'ath10k_halt' in ath10k_start for the state of 'restarting' - -Fixes: 3c97f5de1f28 ("ath10k: implement NAPI support") -Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com> ---- - ---- a/drivers/net/wireless/ath/ath10k/core.c -+++ b/drivers/net/wireless/ath/ath10k/core.c -@@ -1534,7 +1534,7 @@ static void ath10k_core_restart(struct w - switch (ar->state) { - case ATH10K_STATE_ON: - ar->state = ATH10K_STATE_RESTARTING; -- ath10k_hif_stop(ar); -+ ath10k_halt(ar); - ath10k_scan_finish(ar); - ieee80211_restart_hw(ar->hw); - break; ---- a/drivers/net/wireless/ath/ath10k/mac.c -+++ b/drivers/net/wireless/ath/ath10k/mac.c -@@ -4470,7 +4470,6 @@ static int ath10k_start(struct ieee80211 - ar->state = ATH10K_STATE_ON; - break; - case ATH10K_STATE_RESTARTING: -- ath10k_halt(ar); - ar->state = ATH10K_STATE_RESTARTED; - break; - case ATH10K_STATE_ON: |