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firewire: use 64-bit time_t based interfaces

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32-bit CLOCK_REALTIME timestamps overflow in year 2038, so all such
interfaces are deprecated now.  For the FW_CDEV_IOC_GET_CYCLE_TIMER2
ioctl, we already support 64-bit timestamps, but the implementation
still uses timespec.

This changes the code to use timespec64 instead with the appropriate
accessor functions.

Link: http://lkml.kernel.org/r/20180711124456.1023039-1-arnd@arndb.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Arnd Bergmann 2018-08-17 15:43:44 -07:00 committed by Linus Torvalds
parent e1fb4a0864
commit 2c1bb29aa6
1 changed files with 4 additions and 4 deletions
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8
drivers/firewire/core-cdev.c
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@ -1205,7 +1205,7 @@ static int ioctl_get_cycle_timer2(struct client *client, union ioctl_arg *arg)
{
struct fw_cdev_get_cycle_timer2 *a = &arg->get_cycle_timer2;
struct fw_card *card = client->device->card;
struct timespec ts = {0, 0};
struct timespec64 ts = {0, 0};
u32 cycle_time;
int ret = 0;
@ -1214,9 +1214,9 @@ static int ioctl_get_cycle_timer2(struct client *client, union ioctl_arg *arg)
cycle_time = card->driver->read_csr(card, CSR_CYCLE_TIME);
switch (a->clk_id) {
case CLOCK_REALTIME: getnstimeofday(&ts); break;
case CLOCK_MONOTONIC: ktime_get_ts(&ts); break;
case CLOCK_MONOTONIC_RAW: getrawmonotonic(&ts); break;
case CLOCK_REALTIME: ktime_get_real_ts64(&ts); break;
case CLOCK_MONOTONIC: ktime_get_ts64(&ts); break;
case CLOCK_MONOTONIC_RAW: ktime_get_raw_ts64(&ts); break;
default:
ret = -EINVAL;
}