diff options
Diffstat (limited to 'package/kernel/mac80211/patches/305-ath9k-make-DMA-stop-related-messages-debug-only.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/305-ath9k-make-DMA-stop-related-messages-debug-only.patch | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/package/kernel/mac80211/patches/305-ath9k-make-DMA-stop-related-messages-debug-only.patch b/package/kernel/mac80211/patches/305-ath9k-make-DMA-stop-related-messages-debug-only.patch deleted file mode 100644 index c4f394d220..0000000000 --- a/package/kernel/mac80211/patches/305-ath9k-make-DMA-stop-related-messages-debug-only.patch +++ /dev/null @@ -1,74 +0,0 @@ -From: Felix Fietkau <nbd@openwrt.org> -Date: Thu, 2 Jul 2015 13:35:05 +0200 -Subject: [PATCH] ath9k: make DMA stop related messages debug-only - -A long time ago, ath9k had issues during reset where the DMA engine -would stay active and could potentially corrupt memory. -To debug those issues, the driver would print warnings whenever they -occur. - -Nowadays, these issues are gone and the primary cause of these messages -is if the MAC is stuck during reset or busy processing a long -transmission. This is fairly harmless, yet these messages continue to -worry users. - -To reduce the number of bogus bug reports, turn these messages into -debug messages and count their occurence in the "reset" debugfs file. - -Signed-off-by: Felix Fietkau <nbd@openwrt.org> ---- - ---- a/drivers/net/wireless/ath/ath9k/debug.c -+++ b/drivers/net/wireless/ath/ath9k/debug.c -@@ -765,6 +765,8 @@ static int read_file_reset(struct seq_fi - [RESET_TYPE_BEACON_STUCK] = "Stuck Beacon", - [RESET_TYPE_MCI] = "MCI Reset", - [RESET_TYPE_CALIBRATION] = "Calibration error", -+ [RESET_TX_DMA_ERROR] = "Tx DMA stop error", -+ [RESET_RX_DMA_ERROR] = "Rx DMA stop error", - }; - int i; - ---- a/drivers/net/wireless/ath/ath9k/debug.h -+++ b/drivers/net/wireless/ath/ath9k/debug.h -@@ -50,6 +50,8 @@ enum ath_reset_type { - RESET_TYPE_BEACON_STUCK, - RESET_TYPE_MCI, - RESET_TYPE_CALIBRATION, -+ RESET_TX_DMA_ERROR, -+ RESET_RX_DMA_ERROR, - __RESET_TYPE_MAX - }; - ---- a/drivers/net/wireless/ath/ath9k/recv.c -+++ b/drivers/net/wireless/ath/ath9k/recv.c -@@ -491,10 +491,9 @@ bool ath_stoprecv(struct ath_softc *sc) - - if (!(ah->ah_flags & AH_UNPLUGGED) && - unlikely(!stopped)) { -- ath_err(ath9k_hw_common(sc->sc_ah), -- "Could not stop RX, we could be " -- "confusing the DMA engine when we start RX up\n"); -- ATH_DBG_WARN_ON_ONCE(!stopped); -+ ath_dbg(ath9k_hw_common(sc->sc_ah), RESET, -+ "Failed to stop Rx DMA\n"); -+ RESET_STAT_INC(sc, RESET_RX_DMA_ERROR); - } - return stopped && !reset; - } ---- a/drivers/net/wireless/ath/ath9k/xmit.c -+++ b/drivers/net/wireless/ath/ath9k/xmit.c -@@ -1883,8 +1883,11 @@ bool ath_drain_all_txq(struct ath_softc - npend |= BIT(i); - } - -- if (npend) -- ath_err(common, "Failed to stop TX DMA, queues=0x%03x!\n", npend); -+ if (npend) { -+ RESET_STAT_INC(sc, RESET_TX_DMA_ERROR); -+ ath_dbg(common, RESET, -+ "Failed to stop TX DMA, queues=0x%03x!\n", npend); -+ } - - for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { - if (!ATH_TXQ_SETUP(sc, i)) |