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SubjectRe: [PATCH] checkpatch: always allow C99 SPDX License Identifer comments
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Hi Joe,

On 2020-03-11 7:26 p.m., Joe Perches wrote:
> On Wed, 2020-03-11 at 12:11 -0700, Scott Branden wrote:
>> Always allow C99 comment styles if SPDK-License-Identifier is in comment
>> even if C99_COMMENT_TOLERANCE is specified in the --ignore options.
> Why is this useful?
This is useful because if you run checkpatch with
--ignore=C99_COMMENT_TOLERANCE
right now it will warn on almost every .c file in the linux kernel due
to the decision to
use // SPDX-License-Identifier: at the start of every c file

With this change checkpatch will stop complaining about this single
outlier // in the file
and allow you to enforce no other C99 // style comments in the patch.

It would have been a lot nicer if /* SPDX-License-Identifier: xxxx */
was used instead...
>
>> Signed-off-by: Scott Branden <scott.branden@broadcom.com>
>> ---
>> scripts/checkpatch.pl | 4 ++--
>> 1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
>> index a63380c6b0d2..c8b429dd6b51 100755
>> --- a/scripts/checkpatch.pl
>> +++ b/scripts/checkpatch.pl
>> @@ -3852,8 +3852,8 @@ sub process {
>> }
>> }
>>
>> -# no C99 // comments
>> - if ($line =~ m{//}) {
>> +# no C99 // comments except for SPDX-License-Identifier
>> + if ($line =~ m{//} && $rawline !~ /SPDX-License-Identifier:/) {
>> if (ERROR("C99_COMMENTS",
>> "do not use C99 // comments\n" . $herecurr) &&
>> $fix) {

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