diff options
| author | Tony Breeds <tony@bakeyournoodle.com> | 2008-02-08 09:24:52 +1100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-07 14:54:45 -0800 |
| commit | 151db1fc23800875c7ac353b106b7dab77061275 (patch) | |
| tree | b14f06bec7e45c9cd909df1dfb66b099d273b35c | |
| parent | 145e9230760e4db27cf5f00fd04b005c79ca1c12 (diff) | |
| download | lwn-151db1fc23800875c7ac353b106b7dab77061275.tar.gz lwn-151db1fc23800875c7ac353b106b7dab77061275.zip | |
Fix compilation of powerpc asm-offsets.c with old gcc
Commit ad7f71674ad7c3c4467e48f6ab9e85516dae2720 ("[POWERPC] Use a
sensible default for clock_getres() in the VDSO") corrected the clock
resolution reported by the VDSO clock_getres() but introduced another
problem in that older versions of gcc (gcc-4.0 and earlier) fail to
compile the new code in arch/powerpc/kernel/asm-offsets.c.
This fixes it by introducing a new MONOTONIC_RES_NSEC define in the
generic code which is equivalent to KTIME_MONOTONIC_RES but is just an
integer constant, not a ktime union.
Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | arch/powerpc/kernel/asm-offsets.c | 2 | ||||
| -rw-r--r-- | include/linux/hrtimer.h | 5 | ||||
| -rw-r--r-- | include/linux/ktime.h | 3 |
3 files changed, 7 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index e6e49289f788..4b749c416464 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -313,7 +313,7 @@ int main(void) DEFINE(CLOCK_REALTIME, CLOCK_REALTIME); DEFINE(CLOCK_MONOTONIC, CLOCK_MONOTONIC); DEFINE(NSEC_PER_SEC, NSEC_PER_SEC); - DEFINE(CLOCK_REALTIME_RES, (KTIME_MONOTONIC_RES).tv64); + DEFINE(CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC); #ifdef CONFIG_BUG DEFINE(BUG_ENTRY_SIZE, sizeof(struct bug_entry)); diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h index 8371b664b41f..203591e23210 100644 --- a/include/linux/hrtimer.h +++ b/include/linux/hrtimer.h @@ -225,11 +225,14 @@ static inline int hrtimer_is_hres_active(struct hrtimer *timer) * idea of the (in)accuracy of timers. Timer values are rounded up to * this resolution values. */ -# define KTIME_HIGH_RES (ktime_t) { .tv64 = 1 } +# define HIGH_RES_NSEC 1 +# define KTIME_HIGH_RES (ktime_t) { .tv64 = HIGH_RES_NSEC } +# define MONOTONIC_RES_NSEC HIGH_RES_NSEC # define KTIME_MONOTONIC_RES KTIME_HIGH_RES #else +# define MONOTONIC_RES_NSEC LOW_RES_NSEC # define KTIME_MONOTONIC_RES KTIME_LOW_RES /* diff --git a/include/linux/ktime.h b/include/linux/ktime.h index a6ddec141f96..36c542b70c6d 100644 --- a/include/linux/ktime.h +++ b/include/linux/ktime.h @@ -316,7 +316,8 @@ static inline ktime_t ktime_sub_us(const ktime_t kt, const u64 usec) * idea of the (in)accuracy of timers. Timer values are rounded up to * this resolution values. */ -#define KTIME_LOW_RES (ktime_t){ .tv64 = TICK_NSEC } +#define LOW_RES_NSEC TICK_NSEC +#define KTIME_LOW_RES (ktime_t){ .tv64 = LOW_RES_NSEC } /* Get the monotonic time in timespec format: */ extern void ktime_get_ts(struct timespec *ts); |