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| author | Joe Perches <joe@perches.com> | 2013-07-03 15:05:26 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-03 16:07:44 -0700 |
| commit | 9d7a34a5135d29b840d074ba8fbb9c2fac63e508 (patch) | |
| tree | 3e6869ca31ecf4a1cef0d310427cf937cc1df1cb /scripts | |
| parent | 36ec19390effc9131132901e8a66a071a7b74a88 (diff) | |
| download | linux-9d7a34a5135d29b840d074ba8fbb9c2fac63e508.tar.bz2 | |
checkpatch: warn on comparisons to get_jiffies_64()
Comparing get_jiffies_64() is almost always wrong and time_before64 and
time_after64 should be used instead.
Warn on any comparison to get_jiffies_64().
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts')
| -rwxr-xr-x | scripts/checkpatch.pl | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index c274e1dc1e67..f4e247b277de 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -3305,6 +3305,12 @@ sub process { "Comparing jiffies is almost always wrong; prefer time_after, time_before and friends\n" . $herecurr); } +# check for comparisons of get_jiffies_64() + if ($line =~ /\bget_jiffies_64\s*\(\s*\)\s*$Compare|$Compare\s*get_jiffies_64\s*\(\s*\)/) { + WARN("JIFFIES_COMPARISON", + "Comparing get_jiffies_64() is almost always wrong; prefer time_after64, time_before64 and friends\n" . $herecurr); + } + # warn about #ifdefs in C files # if ($line =~ /^.\s*\#\s*if(|n)def/ && ($realfile =~ /\.c$/)) { # print "#ifdef in C files should be avoided\n"; |