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ath9k: Fix race in reset-work usage

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Using work_pending() to defer certain operations when
a HW-reset work has been queued is racy since the check
would return false when the work item is actually in
execution. Use SC_OP_HW_RESET instead to fix this race.
Also, unify the reset debug statistics maintenance.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rajkumar Manoharan
2012-07-17 17:16:42 +05:30
committed by John W. Linville
parent 6dcc344469
commit 124b979bae
7 changed files with 41 additions and 34 deletions
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24
drivers/net/wireless/ath/ath9k/debug.h
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@@ -32,6 +32,19 @@ struct ath_buf;
#define RESET_STAT_INC(sc, type) do { } while (0)
#endif
enum ath_reset_type {
RESET_TYPE_BB_HANG,
RESET_TYPE_BB_WATCHDOG,
RESET_TYPE_FATAL_INT,
RESET_TYPE_TX_ERROR,
RESET_TYPE_TX_HANG,
RESET_TYPE_PLL_HANG,
RESET_TYPE_MAC_HANG,
RESET_TYPE_BEACON_STUCK,
RESET_TYPE_MCI,
__RESET_TYPE_MAX
};
#ifdef CONFIG_ATH9K_DEBUGFS
/**
@@ -209,17 +222,6 @@ struct ath_rx_stats {
u32 rx_frags;
};
enum ath_reset_type {
RESET_TYPE_BB_HANG,
RESET_TYPE_BB_WATCHDOG,
RESET_TYPE_FATAL_INT,
RESET_TYPE_TX_ERROR,
RESET_TYPE_TX_HANG,
RESET_TYPE_PLL_HANG,
RESET_TYPE_MAC_HANG,
__RESET_TYPE_MAX
};
struct ath_stats {
struct ath_interrupt_stats istats;
struct ath_tx_stats txstats[ATH9K_NUM_TX_QUEUES];