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ktime: add ktime_after and ktime_before helper

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Add two minimal helper functions analogous to time_before() and
time_after() that will later on both be needed by SCTP code.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Borkmann 2014-06-11 18:19:28 +02:00 committed by David S. Miller
parent 9181a6bd18
commit 67cb9366ff
2 changed files with 25 additions and 1 deletions
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24
include/linux/ktime.h
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@ -304,6 +304,30 @@ static inline int ktime_compare(const ktime_t cmp1, const ktime_t cmp2)
return 0;
}
/**
* ktime_after - Compare if a ktime_t value is bigger than another one.
* @cmp1: comparable1
* @cmp2: comparable2
*
* Return: true if cmp1 happened after cmp2.
*/
static inline bool ktime_after(const ktime_t cmp1, const ktime_t cmp2)
{
return ktime_compare(cmp1, cmp2) > 0;
}
/**
* ktime_before - Compare if a ktime_t value is smaller than another one.
* @cmp1: comparable1
* @cmp2: comparable2
*
* Return: true if cmp1 happened before cmp2.
*/
static inline bool ktime_before(const ktime_t cmp1, const ktime_t cmp2)
{
return ktime_compare(cmp1, cmp2) < 0;
}
static inline s64 ktime_to_us(const ktime_t kt)
{
struct timeval tv = ktime_to_timeval(kt);

2
net/sctp/sm_make_chunk.c
View File

@ -1782,7 +1782,7 @@ struct sctp_association *sctp_unpack_cookie(
else
kt = ktime_get();
if (!asoc && ktime_compare(bear_cookie->expiration, kt) < 0) {
if (!asoc && ktime_before(bear_cookie->expiration, kt)) {
/*
* Section 3.3.10.3 Stale Cookie Error (3)
*