diff options
| author | Jason A. Donenfeld <Jason@zx2c4.com> | 2019-07-04 11:14:41 +0200 |
|---|---|---|
| committer | Jason A. Donenfeld <Jason@zx2c4.com> | 2019-07-04 11:15:48 +0200 |
| commit | 87b809b88e1bf41a9c142d22a6e29f08d992ca41 (patch) | |
| tree | 5d8cfcd9d6cc7709e027fa73cd68ecd0585e716e /src/compat | |
| parent | e5f1727c7175cce6e65ad700934a8e609fbf9336 (diff) | |
compat: define conversion constants for ancient kernels
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Diffstat (limited to 'src/compat')
| -rw-r--r-- | src/compat/Kbuild.include | 4 | ||||
| -rw-r--r-- | src/compat/compat.h | 2 |
2 files changed, 5 insertions, 1 deletions
diff --git a/src/compat/Kbuild.include b/src/compat/Kbuild.include index 95041a9..1b555f8 100644 --- a/src/compat/Kbuild.include +++ b/src/compat/Kbuild.include @@ -47,6 +47,10 @@ ccflags-y += -include $(kbuild-dir)/compat/memneq/include.h wireguard-y += compat/memneq/memneq.o endif +ifeq ($(wildcard $(srctree)/include/generated/timeconst.h),) +ccflags-y += $(shell echo 'define gcd(a,b){auto t;while(b){t=b;b=a%b;a=t;};return a;};hz=$(CONFIG_HZ);cd=gcd(hz,1000000);print "-DHZ_TO_USEC_NUM=",1000000/cd," -DHZ_TO_USEC_DEN=",hz/cd;halt;' | bc -q) +endif + ifeq ($(wildcard $(srctree)/arch/arm/include/asm/neon.h)$(CONFIG_ARM),y) ccflags-y += -I$(kbuild-dir)/compat/neon-arm/include endif diff --git a/src/compat/compat.h b/src/compat/compat.h index 239fa58..6288550 100644 --- a/src/compat/compat.h +++ b/src/compat/compat.h @@ -406,7 +406,7 @@ static inline u64 __compat_jiffies64_to_nsecs(u64 j) { #if !(NSEC_PER_SEC % HZ) return (NSEC_PER_SEC / HZ) * j; -# else +#else return div_u64(j * HZ_TO_USEC_NUM, HZ_TO_USEC_DEN) * 1000; #endif } |