From: kernel test robot <lkp@intel.com>
To: Joao Martins <joao.m.martins@oracle.com>
Cc: kbuild-all@lists.01.org, clang-built-linux@googlegroups.com,
Dan Williams <dan.j.williams@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
Linux Memory Management List <linux-mm@kvack.org>
Subject: [linux-next:master 3165/3717] drivers/dax/dax-private.h:94:12: warning: result of comparison of constant 68719476736 with expression of type 'unsigned int' is always false
Date: Fri, 28 Aug 2020 09:01:10 +0800 [thread overview]
Message-ID: <202008280906.WPrik7QQ%lkp@intel.com> (raw)
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 88abac0b753dfdd85362a26d2da8277cb1e0842b
commit: f464f9a6a06f2f521f78a6e1ac8680bca2e929e4 [3165/3717] device-dax: add an 'align' attribute
config: arm64-randconfig-r013-20200827 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 71f3169e1baeff262583b35ef88f8fb6df7be85e)
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
git checkout f464f9a6a06f2f521f78a6e1ac8680bca2e929e4
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross 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 >>):
In file included from drivers/dax/super.c:18:
>> drivers/dax/dax-private.h:94:12: warning: result of comparison of constant 68719476736 with expression of type 'unsigned int' is always false [-Wtautological-constant-out-of-range-compare]
if (align == PUD_SIZE && IS_ENABLED(CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD))
~~~~~ ^ ~~~~~~~~
drivers/dax/super.c:447:6: warning: no previous prototype for function 'run_dax' [-Wmissing-prototypes]
void run_dax(struct dax_device *dax_dev)
^
drivers/dax/super.c:447:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void run_dax(struct dax_device *dax_dev)
^
static
2 warnings generated.
--
In file included from drivers/dax/bus.c:10:
>> drivers/dax/dax-private.h:94:12: warning: result of comparison of constant 68719476736 with expression of type 'unsigned int' is always false [-Wtautological-constant-out-of-range-compare]
if (align == PUD_SIZE && IS_ENABLED(CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD))
~~~~~ ^ ~~~~~~~~
1 warning generated.
--
In file included from drivers/dax/device.c:14:
>> drivers/dax/dax-private.h:94:12: warning: result of comparison of constant 68719476736 with expression of type 'unsigned int' is always false [-Wtautological-constant-out-of-range-compare]
if (align == PUD_SIZE && IS_ENABLED(CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD))
~~~~~ ^ ~~~~~~~~
drivers/dax/device.c:391:5: warning: no previous prototype for function 'dev_dax_probe' [-Wmissing-prototypes]
int dev_dax_probe(struct dev_dax *dev_dax)
^
drivers/dax/device.c:391:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int dev_dax_probe(struct dev_dax *dev_dax)
^
static
2 warnings generated.
# https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=f464f9a6a06f2f521f78a6e1ac8680bca2e929e4
git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git fetch --no-tags linux-next master
git checkout f464f9a6a06f2f521f78a6e1ac8680bca2e929e4
vim +94 drivers/dax/dax-private.h
90
91 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
92 static inline bool dax_align_valid(unsigned int align)
93 {
> 94 if (align == PUD_SIZE && IS_ENABLED(CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD))
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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next reply other threads:[~2020-08-28 1:01 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-28 1:01 kernel test robot [this message]
2020-08-28 17:32 ` Joao Martins
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