Re: [PATCH v2 1/2] soc: qcom: geni: Don't ignore clk_round_rate() errors in geni_se_clk_tbl_get()

From: Matthias Kaehlcke
Date: Thu Sep 06 2018 - 18:40:36 EST


On Thu, Sep 06, 2018 at 03:39:04PM -0700, Doug Anderson wrote:
> Hi
>
> On Thu, Sep 6, 2018 at 3:35 PM, kbuild test robot <lkp@xxxxxxxxx> wrote:
> > Hi Douglas,
> >
> > Thank you for the patch! Perhaps something to improve:
> >
> > [auto build test WARNING on agross/for-next]
> > [also build test WARNING on v4.19-rc2 next-20180906]
> > [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
> >
> > url: https://github.com/0day-ci/linux/commits/Douglas-Anderson/soc-qcom-geni-Don-t-ignore-clk_round_rate-errors-in-geni_se_clk_tbl_get/20180907-045155
> > base: https://git.kernel.org/pub/scm/linux/kernel/git/agross/linux.git for-next
> > config: i386-allmodconfig (attached as .config)
> > compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
> > reproduce:
> > # save the attached .config to linux build tree
> > make ARCH=i386
> >
> > Note: it may well be a FALSE warning. FWIW you are at least aware of it now.
> > http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings
> >
> > All warnings (new ones prefixed by >>):
> >
> > drivers/soc/qcom/qcom-geni-se.c: In function 'geni_se_clk_tbl_get':
> >>> drivers/soc/qcom/qcom-geni-se.c:531:39: warning: 'freq' may be used uninitialized in this function [-Wmaybe-uninitialized]
> > freq = clk_round_rate(se->clk, freq + 1);
> > ~~~~~^~~
>
> Oh crud. Yeah. ...so v1 was right after all. :(

Sorry about the misguided suggestion :/