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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2014-12-08 13:19:12 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2014-12-08 14:03:43 +0100 |
| commit | 351997810131565fe62aec2c366deccbf6bda3f4 (patch) | |
| tree | 85f8346b5882b63f840a78d5beb8bd88a0eaeb13 | |
| parent | 8622384f138b786b9ae639e79ccfb84c7db82cbc (diff) | |
| download | linux-351997810131565fe62aec2c366deccbf6bda3f4.tar.bz2 | |
s390/cputime: fix 31-bit compile
git commit 8461b63ca01d125a245a0d0fb4821ea0656e5053
"s390: translate cputime magic constants to macros"
introduce a built error for 31-bit:
kernel/built-in.o: In function `posix_cpu_timer_set':
posix-cpu-timers.c:(.text+0x2a8cc): undefined reference to `__udivdi3'
The original code is actually broken for 31-bit and has been
corrected by the above commit by forcing the compiler to use
64-bit arithmetic through the CPUTIME_PER_USEC define.
To fix the compile error replace the 64-bit division with
a call to __div().
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| -rw-r--r-- | arch/s390/include/asm/cputime.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/include/asm/cputime.h b/arch/s390/include/asm/cputime.h index b81712306360..b91e960e4045 100644 --- a/arch/s390/include/asm/cputime.h +++ b/arch/s390/include/asm/cputime.h @@ -94,7 +94,7 @@ static inline cputime_t secs_to_cputime(const unsigned int s) static inline cputime_t timespec_to_cputime(const struct timespec *value) { unsigned long long ret = value->tv_sec * CPUTIME_PER_SEC; - return (__force cputime_t)(ret + (value->tv_nsec * CPUTIME_PER_USEC) / NSEC_PER_USEC); + return (__force cputime_t)(ret + __div(value->tv_nsec * CPUTIME_PER_USEC, NSEC_PER_USEC)); } static inline void cputime_to_timespec(const cputime_t cputime, |