linux-kernel - Re: [cxl:preview 30/54] drivers/cxl/core/port.c:527 decoder_populate_targets() warn: inconsistent returns '&cxld->target

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Message-ID: <CAPcyv4iRMYx4kQci2Um=NvsizqVhHTNZiCVbfL18U=ZMX5xm3w@mail.gmail.com>
Date:   Wed, 26 Jan 2022 07:38:04 -0800
From:   Dan Williams <dan.j.williams@...el.com>
To:     Dan Carpenter <dan.carpenter@...cle.com>
Cc:     kbuild@...ts.01.org, kbuild test robot <lkp@...el.com>,
        kbuild-all@...ts.01.org,
        Alison Schofield <alison.schofield@...el.com>,
        Vishal Verma <vishal.l.verma@...el.com>,
        Ira Weiny <ira.weiny@...el.com>,
        Ben Widawsky <ben.widawsky@...el.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [cxl:preview 30/54] drivers/cxl/core/port.c:527
 decoder_populate_targets() warn: inconsistent returns '&cxld->target_lock.lock'.

On Wed, Jan 26, 2022 at 2:09 AM Dan Carpenter <dan.carpenter@...cle.com> wrote:
>
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git preview
> head:   d0687472d5b56e2018b833723082c2717e96c074
> commit: a5d24e660f35f16cfe30031dcbd7356f7a002398 [30/54] cxl/core/port: Use dedicated lock for decoder target list
> config: s390-randconfig-m031-20220120 (https://download.01.org/0day-ci/archive/20220125/202201250055.R82EBqL1-lkp@intel.com/config)
> compiler: s390-linux-gcc (GCC) 11.2.0
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@...el.com>
> Reported-by: Dan Carpenter <dan.carpenter@...cle.com>
>
> smatch warnings:
> drivers/cxl/core/port.c:527 decoder_populate_targets() warn: inconsistent returns '&cxld->target_lock.lock'.

This report is too late. The branch was posted on the 22nd. The bug
was already found and fixed manually:

https://lore.kernel.org/r/164316562430.3437160.122223070771602475.stgit@dwillia2-desk3.amr.corp.intel.com