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checkpatch: check trace-events code style 

According to CODING_STYLE, check that in trace-events:
1. hex numbers are prefixed with '0x'
2. '#' flag of printf is not used
3. The exclusion from 1. are period-separated groups of numbers

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20170731160135.12101-4-vsementsov@virtuozzo.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2017-07-31 19:01:34 +03:00 committed by Stefan Hajnoczi
parent db73ee4bc8
commit c3e5875afc
1 changed files with 19 additions and 0 deletions
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19
scripts/checkpatch.pl
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@ -1337,6 +1337,25 @@ sub process {
$rpt_cleaners = 1;
}
# checks for trace-events files
if ($realfile =~ /trace-events$/ && $line =~ /^\+/) {
if ($rawline =~ /%[-+ 0]*#/) {
ERROR("Don't use '#' flag of printf format ('%#') in " .
"trace-events, use '0x' prefix instead\n" . $herecurr);
} else {
my $hex =
qr/%[-+ *.0-9]*([hljztL]|ll|hh)?(x|X|"\s*PRI[xX][^"]*"?)/;
# don't consider groups splitted by [.:/ ], like 2A.20:12ab
my $tmpline = $rawline =~ s/($hex[.:\/ ])+$hex//gr;
if ($tmpline =~ /(?<!0x)$hex/) {
ERROR("Hex numbers must be prefixed with '0x'\n" .
$herecurr);
}
}
}
# check we are in a valid source file if not then ignore this hunk
next if ($realfile !~ /\.(h|c|cpp|s|S|pl|py|sh)$/);