Dear Thomas - listed as checkpatch maintainer, I think this warning is bogus, and is a bug checkpatch.
The line in question was deliberately indented using tabs to the current indentation level, and using spaces for the readability alignment. This makes the code readable in editors with another tab setting than 8 spaces. E.g. 4 spaces is my personal preference. Med venlig hilsen / kind regards - Morten Brørup > -----Original Message----- > From: checkpa...@dpdk.org [mailto:checkpa...@dpdk.org] > Sent: Wednesday, September 25, 2019 2:06 PM > To: test-rep...@dpdk.org > Cc: Morten Brørup > Subject: |WARNING| pw59738 [PATCH v2 2/2] mbuf: add bulk free function > > Test-Label: checkpatch > Test-Status: WARNING > http://dpdk.org/patch/59738 > > _coding style issues_ > > > ERROR:CODE_INDENT: code indent should use tabs where possible > #59: FILE: lib/librte_mbuf/rte_mbuf.c:272: > +^I^I^I (void **)free, nb_free);$ > > total: 1 errors, 0 warnings, 67 lines checked