[PATCH] ath10k: fix fw crash dumping
From: Michal Kazior <hidden>
Date: 2014-08-25 10:23:01
Subsystem:
atheros ath generic utilities, qualcomm atheros ath10k wireless driver, the rest · Maintainers:
Jeff Johnson, Linus Torvalds
Recent crash dump patches introduced a regression. If debugfs was disabled upon crash user could only see the following: [ 793.880000] ath10k: firmware crashed! (uuid n/a) [ 793.890000] ath10k: qca988x hw2.0 (0x4100016c, 0x043202ff) fw 10.1.467.2-1 api 2 htt 2.1 [ 793.890000] ath10k: debug 0 debugfs 0 tracing 0 dfs 1 The report was missing register dump. Fix it by printing registers regardless if crash_data is present or not. Signed-off-by: Michal Kazior <redacted> --- Note: This is based on my logging patch. drivers/net/wireless/ath/ath10k/pci.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 83ef6ef..144eb8a3 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c@@ -916,6 +916,9 @@ static void ath10k_pci_dump_registers(struct ath10k *ar, reg_dump_values[i + 2], reg_dump_values[i + 3]); + if (!crash_data) + return; + /* crash_data is in little endian */ for (i = 0; i < REG_DUMP_COUNT_QCA988X; i++) crash_data->registers[i] = cpu_to_le32(reg_dump_values[i]);
@@ -937,13 +940,8 @@ static void ath10k_pci_fw_crashed_dump(struct ath10k *ar) ath10k_err(ar, "firmware crashed! (uuid %s)\n", uuid); ath10k_print_driver_info(ar); - - if (!crash_data) - goto exit; - ath10k_pci_dump_registers(ar, crash_data); -exit: spin_unlock_bh(&ar->data_lock); queue_work(ar->workqueue, &ar->restart_work);
--
1.8.5.3