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| author | Arnd Bergmann <arnd@arndb.de> | 2019-07-10 15:01:53 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2019-07-10 20:37:49 +0200 |
| commit | 0df1c9868c3a1916198ee09c323ca5932a0b8a11 (patch) | |
| tree | 18a8b26434edf1c7766d971bbcdbc3c516c2205d /mm | |
| parent | 9bdd7bb3a8447fe841cd37ddd9e0a6974b06a0bb (diff) | |
| download | linux-0df1c9868c3a1916198ee09c323ca5932a0b8a11.tar.bz2 | |
timekeeping/vsyscall: Use __iter_div_u64_rem()
On 32-bit x86 when building with clang-9, the 'division' loop gets turned
back into an inefficient division that causes a link error:
kernel/time/vsyscall.o: In function `update_vsyscall':
vsyscall.c:(.text+0xe3): undefined reference to `__udivdi3'
Use the existing __iter_div_u64_rem() function which is used to address the
same issue in other places.
Fixes: 44f57d788e7d ("timekeeping: Provide a generic update_vsyscall() implementation")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>
Link: https://lkml.kernel.org/r/20190710130206.1670830-1-arnd@arndb.de
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions