From: Jason Gunthorpe <jgg@nvidia.com>
To: kernel test robot <lkp@intel.com>,
Tatyana Nikolova <tatyana.e.nikolova@intel.com>,
Mustafa Ismail <mustafa.ismail@intel.com>
Cc: Shiraz Saleem <shiraz.saleem@intel.com>,
clang-built-linux@googlegroups.com, kbuild-all@lists.01.org,
linux-kernel@vger.kernel.org
Subject: Re: drivers/infiniband/hw/irdma/uk.c:934:6: warning: variable 'total_size' set but not used
Date: Mon, 5 Jul 2021 13:04:21 -0300 [thread overview]
Message-ID: <20210705160421.GS4459@nvidia.com> (raw)
In-Reply-To: <202107020917.rzVg3a4q-lkp@intel.com>
On Fri, Jul 02, 2021 at 09:15:24AM +0800, kernel test robot wrote:
> Hi Shiraz,
>
> First bad commit (maybe != root cause):
>
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: e04360a2ea01bf42aa639b65aad81f502e896c7f
> commit: fa0cf568fd76550c1ddb806c03a65a1a4a1ea909 RDMA/irdma: Add irdma Kconfig/Makefile and remove i40iw
> date: 4 weeks ago
> config: arm-randconfig-r005-20210701 (attached as .config)
> compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project e7e71e9454ed76c1b3d8140170b5333c28bef1be)
> 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 arm cross compiling tool for clang build
> # apt-get install binutils-arm-linux-gnueabi
> # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fa0cf568fd76550c1ddb806c03a65a1a4a1ea909
> git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> git fetch --no-tags linus master
> git checkout fa0cf568fd76550c1ddb806c03a65a1a4a1ea909
> # save the attached .config to linux build tree
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm
>
> 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/infiniband/hw/irdma/uk.c:934:6: warning: variable 'total_size' set but not used [-Wunused-but-set-variable]
> u32 total_size = 0, wqe_idx, i, byte_off;
> ^
> 1 warning generated.
Yes, Tatyana please send a patch
Thanks,
Jason
prev parent reply other threads:[~2021-07-05 16:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-02 1:15 drivers/infiniband/hw/irdma/uk.c:934:6: warning: variable 'total_size' set but not used kernel test robot
2021-07-05 16:04 ` Jason Gunthorpe [this message]
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