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timex: use __kernel_timex internally

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struct timex is not y2038 safe.
Replace all uses of timex with y2038 safe __kernel_timex.

Note that struct __kernel_timex is an ABI interface definition.
We could define a new structure based on __kernel_timex that
is only available internally instead. Right now, there isn't
a strong motivation for this as the structure is isolated to
a few defined struct timex interfaces and such a structure would
be exactly the same as struct timex.

The patch was generated by the following coccinelle script:

virtual patch

@depends on patch forall@
identifier ts;
expression e;
@@
(
- struct timex ts;
+ struct __kernel_timex ts;
|
- struct timex ts = {};
+ struct __kernel_timex ts = {};
|
- struct timex ts = e;
+ struct __kernel_timex ts = e;
|
- struct timex *ts;
+ struct __kernel_timex *ts;
|
(memset \| copy_from_user \| copy_to_user \)(...,
- sizeof(struct timex))
+ sizeof(struct __kernel_timex))
)

@depends on patch forall@
identifier ts;
identifier fn;
@@
fn(...,
- struct timex *ts,
+ struct __kernel_timex *ts,
...) {
...
}

@depends on patch forall@
identifier ts;
identifier fn;
@@
fn(...,
- struct timex *ts) {
+ struct __kernel_timex *ts) {
...
}

Signed-off-by: Deepa Dinamani <[email protected]>
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Arnd Bergmann <[email protected]>
This commit is contained in:
Deepa Dinamani 2018-07-02 22:44:21 -07:00 • committed by Arnd Bergmann
commit ead25417f8
13 changed files with 38 additions and 35 deletions
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2
drivers/ptp/ptp_clock.c
View file

@ -124,7 +124,7 @@ static int ptp_clock_gettime(struct posix_clock *pc, struct timespec64 *tp)
return err;
}
static int ptp_clock_adjtime(struct posix_clock *pc, struct timex *tx)
static int ptp_clock_adjtime(struct posix_clock *pc, struct __kernel_timex *tx)
{
struct ptp_clock *ptp = container_of(pc, struct ptp_clock, clock);
struct ptp_clock_info *ops;