[Intel-gfx] [PATCH v2] dim: Avoid false positives with BUG detection

[Jani Nikula]

On Thu, 17 Mar 2016, Tvrtko Ursulin <tvrtko.ursulin at linux.intel.com> wrote:
> [ text/plain ]
>
>
> On 11/03/16 15:31, Tvrtko Ursulin wrote:
>> From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
>>
>> Makes sure that the diff line adding the BUG is not immediately
>> preceded by the diff line removing the BUG. Or in other words,
>> avoids false positives when existing BUG is edited.
>>
>> v2: Sent the incomplete version out...
>>
>> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
>> ---
>>   dim | 3 ++-
>>   1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/dim b/dim
>> index 1e7622a1e902..5392c64bf5b4 100755
>> --- a/dim
>> +++ b/dim
>> @@ -691,7 +691,8 @@ function shell_checkpatch
>>   	local cmd=$1
>>
>>   	$cmd | scripts/checkpatch.pl -q --strict - || true
>> -	if $cmd | grep '^\+.*\WBUG' > /dev/null; then
>> +	local bug_lines=$("$cmd" | grep -m 1 -B 1 '^\+.*\WBUG' | grep -c '^[+-].*\WBUG')
>> +	if test "$bug_lines" -eq 1; then
>>   		warn_or_fail "New BUG macro added"
>>   	fi
>>   	$cmd | grep '^\+.*drm_i915_private_t' > /dev/null && echo "WARNING: New drm_i915_private_t added" || true
>>
>
> Are we interested in this?

Yes. Sorry, I've updated these lines so you'll need to rebase, I'm
afraid.

I'd also be fine with comparing the results of $(grep -c '^\+.*\WBUG)
and $(grep -c '^\-.*\WBUG) and complaining if there are more +'s than
-'s. But your stricter version is fine too.

BR,
Jani.




>
> Regards,
>
> Tvrtko

-- 
Jani Nikula, Intel Open Source Technology Center