# \[PATCH\] ath10k: use 64-bit crash dump timestamps

- From: Arnd Bergmann \<arnd@arndb.de\>
- Date: 2017-11-27 11:52:00 
- List: netdev
- Page: https://ratatoskr.run/netdev/2017/11/5141236
- Thread: https://ratatoskr.run/linux-wireless/2017/11/5141236/t.md

```text
The dump format uses 64-bit timestamps already, but calling
getnstimeofday() only returns a 32-bit number on 32-bit architectures,
so that will overflow in y2038.

This changes it to use ktime_get_real_ts64() instead.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/net/wireless/ath/ath10k/core.h  | 2 +-
 drivers/net/wireless/ath/ath10k/debug.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 643041ef3271..dd3c6c63aae1 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -463,7 +463,7 @@ struct ath10k_fw_crash_data {
 	bool crashed_since_read;
 
 	guid_t guid;
-	struct timespec timestamp;
+	struct timespec64 timestamp;
 	__le32 registers[REG_DUMP_COUNT_QCA988X];
 	struct ath10k_ce_crash_data ce_crash_data[CE_COUNT_MAX];
 };
diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
index df514507d3f1..66498e3c0f91 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -720,7 +720,7 @@ ath10k_debug_get_new_fw_crash_data(struct ath10k *ar)
 
 	crash_data->crashed_since_read = true;
 	guid_gen(&crash_data->guid);
-	getnstimeofday(&crash_data->timestamp);
+	ktime_get_real_ts64(&crash_data->timestamp);
 
 	return crash_data;
 }
-- 
2.9.0

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```
