From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: kernel test robot <lkp@intel.com>,
Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>
Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org,
linux-kernel@vger.kernel.org,
Linus Walleij <linus.walleij@linaro.org>
Subject: Re: [pinctrl-intel:review-andy 18/19] drivers/pinctrl/pinctrl-zynqmp.c:825:13: warning: variable 'pin' is uninitialized when used here
Date: Fri, 19 Nov 2021 10:33:36 +0200 [thread overview]
Message-ID: <YZdhYEVCgqh5MB3J@smile.fi.intel.com> (raw)
In-Reply-To: <202111191618.SSj1gGvK-lkp@intel.com>
On Fri, Nov 19, 2021 at 04:08:32PM +0800, kernel test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel.git review-andy
> head: c25441ca551164c56b34885df3d657e2ea4d623f
> commit: 9122cda6a325f80564f02b7899cc063009f5e1f9 [18/19] pinctrl: zynqmp: Unify pin naming
> config: arm64-buildonly-randconfig-r004-20211118 (attached as .config)
> reproduce (this is a W=1 build):
> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> # install arm64 cross compiling tool for clang build
> # apt-get install binutils-aarch64-linux-gnu
> # https://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel.git/commit/?id=9122cda6a325f80564f02b7899cc063009f5e1f9
> git remote add pinctrl-intel https://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel.git
> git fetch --no-tags pinctrl-intel review-andy
> git checkout 9122cda6a325f80564f02b7899cc063009f5e1f9
> # save the attached .config to linux build tree
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=arm64
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
>
> All warnings (new ones prefixed by >>):
>
> >> drivers/pinctrl/pinctrl-zynqmp.c:825:13: warning: variable 'pin' is uninitialized when used here [-Wuninitialized]
> if (IS_ERR(pin->name))
> ^~~
> drivers/pinctrl/pinctrl-zynqmp.c:811:37: note: initialize the variable 'pin' to silence this warning
> struct pinctrl_pin_desc *pins, *pin;
> ^
> = NULL
> 1 warning generated.
Utterly inappropriate suggestion by the compiler (it found an actual error,
though).
Can be Clang fixed, really?
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2021-11-19 8:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-19 8:08 [pinctrl-intel:review-andy 18/19] drivers/pinctrl/pinctrl-zynqmp.c:825:13: warning: variable 'pin' is uninitialized when used here kernel test robot
2021-11-19 8:33 ` Andy Shevchenko [this message]
2021-11-19 17:20 ` Nathan Chancellor
2021-11-19 17:44 ` Andy Shevchenko
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