| Message ID | 20171020072006.4174886-1-arnd@arndb.de |
|---|---|
| State | Accepted |
| Headers | show |
| Series | usb: xhci: tegra: use time64_t for printing timestamp | expand |
On 20.10.2017 10:19, Arnd Bergmann wrote: > 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 <arnd@arndb.de> > --- > drivers/usb/host/xhci-tegra.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c > index 74436f8ca538..39b6e93130d3 100644 > --- a/drivers/usb/host/xhci-tegra.c > +++ b/drivers/usb/host/xhci-tegra.c > @@ -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, > Thanks, adding to queue -Mathias -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c index 74436f8ca538..39b6e93130d3 100644 --- a/drivers/usb/host/xhci-tegra.c +++ b/drivers/usb/host/xhci-tegra.c @@ -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,
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 <arnd@arndb.de> --- drivers/usb/host/xhci-tegra.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)