From 27e48a69995096472390d6e9a87d58502c88e47f Mon Sep 17 00:00:00 2001 From: Josh Boyer Date: Wed, 6 Feb 2013 09:57:47 -0500 Subject: [PATCH] Add patch to fix ath9k dma stop checks (rhbz 892811) --- ath9k_rx_dma_stop_check.patch | 28 ++++++++++++++++++++++++++++ kernel.spec | 11 ++++++++++- 2 files changed, 38 insertions(+), 1 deletion(-) create mode 100644 ath9k_rx_dma_stop_check.patch diff --git a/ath9k_rx_dma_stop_check.patch b/ath9k_rx_dma_stop_check.patch new file mode 100644 index 000000000..606eb1c63 --- /dev/null +++ b/ath9k_rx_dma_stop_check.patch @@ -0,0 +1,28 @@ +--- a/drivers/net/wireless/ath/ath9k/mac.c ++++ b/drivers/net/wireless/ath/ath9k/mac.c +@@ -689,7 +689,7 @@ bool ath9k_hw_stopdmarecv(struct ath_hw + { + #define AH_RX_STOP_DMA_TIMEOUT 10000 /* usec */ + struct ath_common *common = ath9k_hw_common(ah); +- u32 mac_status, last_mac_status = 0; ++ u32 mac_status = 0, last_mac_status = 0; + int i; + + /* Enable access to the DMA observation bus */ +@@ -719,6 +719,16 @@ bool ath9k_hw_stopdmarecv(struct ath_hw + } + + if (i == 0) { ++ if (!AR_SREV_9300_20_OR_LATER(ah) && ++ (mac_status & 0x700) == 0) { ++ /* ++ * DMA is idle but the MAC is still stuck ++ * processing events ++ */ ++ *reset = true; ++ return true; ++ } ++ + ath_err(common, + "DMA failed to stop in %d ms AR_CR=0x%08x AR_DIAG_SW=0x%08x DMADBG_7=0x%08x\n", + AH_RX_STOP_DMA_TIMEOUT / 1000, diff --git a/kernel.spec b/kernel.spec index 0ca562d66..830244807 100644 --- a/kernel.spec +++ b/kernel.spec @@ -62,7 +62,7 @@ Summary: The Linux kernel # For non-released -rc kernels, this will be appended after the rcX and # gitX tags, so a 3 here would become part of release "0.rcX.gitX.3" # -%global baserelease 1 +%global baserelease 2 %global fedora_build %{baserelease} # base_sublevel is the kernel version we're starting with and patching @@ -755,6 +755,9 @@ Patch21244: iwlegacy-add-flush-callback.patch #rhbz 903881 Patch21246: rtlwifi-Fix-scheduling-while-atomic-bug.patch +#rhbz 892811 +Patch21247: ath9k_rx_dma_stop_check.patch + # END OF PATCH DEFINITIONS %endif @@ -1460,6 +1463,9 @@ ApplyPatch iwlegacy-add-flush-callback.patch #rhbz 903881 ApplyPatch rtlwifi-Fix-scheduling-while-atomic-bug.patch +#rhbz 892811 +ApplyPatch ath9k_rx_dma_stop_check.patch + # END OF PATCH APPLICATIONS %endif @@ -2315,6 +2321,9 @@ fi # ||----w | # || || %changelog +* Wed Feb 06 2013 Josh Boyer +- Add patch to fix ath9k dma stop checks (rhbz 892811) + * Wed Feb 06 2013 Josh Boyer - 3.8.0-0.rc6.git3.1 - Linux v3.8-rc6-98-g1589a3e - Add patch to honor MokSBState (rhbz 907406)