diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2024-03-25 08:40:05 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2024-04-08 15:03:06 +0200 |
| commit | c8e3a8b6f2e62661d838ae222774121ae23777a4 (patch) | |
| tree | 9c2956871845abea8bf2764245bc3be816d0c52a /lib/vdso/gettimeofday.c | |
| parent | 82ccdf062a64f3c4ac575c16179ce68edbbbe8e4 (diff) | |
vdso: Consolidate vdso_calc_delta()
Consolidate vdso_calc_delta(), in preparation for further simplification.
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240325064023.2997-2-adrian.hunter@intel.com
Diffstat (limited to 'lib/vdso/gettimeofday.c')
| -rw-r--r-- | lib/vdso/gettimeofday.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/lib/vdso/gettimeofday.c b/lib/vdso/gettimeofday.c index ce2f69552003..faccf12f7c03 100644 --- a/lib/vdso/gettimeofday.c +++ b/lib/vdso/gettimeofday.c @@ -6,6 +6,13 @@ #include <vdso/helpers.h> #ifndef vdso_calc_delta + +#ifdef VDSO_DELTA_NOMASK +# define VDSO_DELTA_MASK(mask) U64_MAX +#else +# define VDSO_DELTA_MASK(mask) (mask) +#endif + /* * Default implementation which works for all sane clocksources. That * obviously excludes x86/TSC. @@ -13,7 +20,7 @@ static __always_inline u64 vdso_calc_delta(u64 cycles, u64 last, u64 mask, u32 mult) { - return ((cycles - last) & mask) * mult; + return ((cycles - last) & VDSO_DELTA_MASK(mask)) * mult; } #endif |