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usb: xhci: tegra: use time64_t for printing timestamp

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The time_t type and time_to_tm() function are deprecated because
of y2038 problems. In this driver, they are used to pretty-print
the timestamp of the firmware build. This is fine as long as
we don't get a firmware build past 2038.

Converting to time64_t and time64_to_tm() avoids the deprecated
interfaces and works until 2106, when the firmware-defined
data structure overflows.

Signed-off-by: Arnd Bergmann <[email protected]>
Acked-by: Thierry Reding <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Arnd Bergmann 2017-11-02 15:34:27 +01:00 • committed by Greg Kroah-Hartman
commit 9506b146fa
1 changed files with 2 additions and 2 deletions
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4
drivers/usb/host/xhci-tegra.c
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@ -771,7 +771,7 @@ static int tegra_xusb_load_firmware(struct tegra_xusb *tegra)
struct device *dev = tegra->dev;
const struct firmware *fw;
unsigned long timeout;
time_t timestamp;
time64_t timestamp;
struct tm time;
u64 address;
u32 value;
@ -877,7 +877,7 @@ static int tegra_xusb_load_firmware(struct tegra_xusb *tegra)
}
timestamp = le32_to_cpu(header->fwimg_created_time);
time_to_tm(timestamp, 0, &time);
time64_to_tm(timestamp, 0, &time);
dev_info(dev, "Firmware timestamp: %ld-%02d-%02d %02d:%02d:%02d UTC\n",
time.tm_year + 1900, time.tm_mon + 1, time.tm_mday,