diff options
| author | Mark Brown <broonie@kernel.org> | 2014-10-20 20:55:07 +0400 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2014-10-20 21:27:32 +0400 |
| commit | b7a40242c82cd73cfcea305f23e67d068dd8401a (patch) | |
| tree | 251b49d19cd7c371847ae1f951e1b537ca0e1c15 /fs/cifs/netmisc.c | |
| parent | d26833bfce5e56017bea9f1f50838f20e18e7b7e (diff) | |
| parent | 9c6de47d53a3ce8df1642ae67823688eb98a190a (diff) | |
| download | linux-b7a40242c82cd73cfcea305f23e67d068dd8401a.tar.xz | |
Merge branch 'fix/dw' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-dw
Conflicts:
drivers/spi/spi-dw-mid.c
Diffstat (limited to 'fs/cifs/netmisc.c')
| -rw-r--r-- | fs/cifs/netmisc.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c index 6834b9c3bec1..b333ff60781d 100644 --- a/fs/cifs/netmisc.c +++ b/fs/cifs/netmisc.c @@ -925,11 +925,23 @@ cifs_NTtimeToUnix(__le64 ntutc) /* BB what about the timezone? BB */ /* Subtract the NTFS time offset, then convert to 1s intervals. */ - u64 t; + s64 t = le64_to_cpu(ntutc) - NTFS_TIME_OFFSET; + + /* + * Unfortunately can not use normal 64 bit division on 32 bit arch, but + * the alternative, do_div, does not work with negative numbers so have + * to special case them + */ + if (t < 0) { + t = -t; + ts.tv_nsec = (long)(do_div(t, 10000000) * 100); + ts.tv_nsec = -ts.tv_nsec; + ts.tv_sec = -t; + } else { + ts.tv_nsec = (long)do_div(t, 10000000) * 100; + ts.tv_sec = t; + } - t = le64_to_cpu(ntutc) - NTFS_TIME_OFFSET; - ts.tv_nsec = do_div(t, 10000000) * 100; - ts.tv_sec = t; return ts; } |