tree:
https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git tmp
head: 13665f1f8b5d501b40b1bc8448b0a032c7f04cc2
commit: 408b2b0c3fd434779f9c862fed5f2b0cc76ba606 [27/44] slimbus: qcom: fix potential NULL
dereference in qcom_slim_prg_slew()
config: x86_64-randconfig-a013-20210323 (attached as .config)
compiler: clang version 13.0.0 (
https://github.com/llvm/llvm-project
a4fb88669cd98db6fef7dcac88e3ec425d40c00d)
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 x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
#
https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git/c...
git remote add sashal-linux-stable
https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git
git fetch --no-tags sashal-linux-stable tmp
git checkout 408b2b0c3fd434779f9c862fed5f2b0cc76ba606
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All error/warnings (new ones prefixed by >>):
> drivers/slimbus/qcom-ctrl.c:477:20: error: implicit declaration
of function 'devm_platform_ioremap_resource_byname'
[-Werror,-Wimplicit-function-declaration]
ctrl->slew_reg =
devm_platform_ioremap_resource_byname(pdev, "slew");
^
drivers/slimbus/qcom-ctrl.c:477:20: note: did you mean
'devm_platform_ioremap_resource'?
include/linux/platform_device.h:58:1: note: 'devm_platform_ioremap_resource'
declared here
devm_platform_ioremap_resource(struct platform_device *pdev,
^
> drivers/slimbus/qcom-ctrl.c:477:18: warning: incompatible integer
to pointer conversion assigning to 'void *' from 'int' [-Wint-conversion]
ctrl->slew_reg = devm_platform_ioremap_resource_byname(pdev,
"slew");
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning and 1 error generated.
vim +/devm_platform_ioremap_resource_byname +477 drivers/slimbus/qcom-ctrl.c
471
472 static void qcom_slim_prg_slew(struct platform_device *pdev,
473 struct qcom_slim_ctrl *ctrl)
474 {
475 if (!ctrl->slew_reg) {
476 /* SLEW RATE register for this SLIMbus */
477 ctrl->slew_reg = devm_platform_ioremap_resource_byname(pdev,
"slew");
478 if (IS_ERR(ctrl->slew_reg))
479 return;
480 }
481
482 writel_relaxed(1, ctrl->slew_reg);
483 /* Make sure SLIMbus-slew rate enabling goes through */
484 wmb();
485 }
486
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org