From: Nathan Chancellor <natechancellor@gmail.com>
To: "Paul E. McKenney" <paulmck@kernel.org>
Cc: kbuild-all@lists.01.org, clang-built-linux@googlegroups.com,
linux-kernel@vger.kernel.org, kernel test robot <lkp@intel.com>
Subject: Re: [rcu:rcu/test 76/76] drivers/dax/super.c:21:1: error: use of undeclared identifier '___srcu_struct_ptrs'
Date: Mon, 26 Oct 2020 18:53:34 -0700 [thread overview]
Message-ID: <20201027015334.GA842991@ubuntu-m3-large-x86> (raw)
In-Reply-To: <202010270828.0bL3aIGL-lkp@intel.com>
Hi Paul,
On Tue, Oct 27, 2020 at 08:50:52AM +0800, kernel test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/test
> head: 784a6343c3660446ae62db13628b20e9f876100f
> commit: 784a6343c3660446ae62db13628b20e9f876100f [76/76] Merge commit '3650b22' into rcu/test
> config: arm-randconfig-r026-20201026 (attached as .config)
> compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project f2c25c70791de95d2466e09b5b58fc37f6ccd7a4)
> 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/paulmck/linux-rcu.git/commit/?id=784a6343c3660446ae62db13628b20e9f876100f
> git remote add rcu https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
> git fetch --no-tags rcu rcu/test
> git checkout 784a6343c3660446ae62db13628b20e9f876100f
> # 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 errors (new ones prefixed by >>):
>
> >> drivers/dax/super.c:21:1: error: use of undeclared identifier '___srcu_struct_ptrs'
> DEFINE_STATIC_SRCU(dax_srcu);
> ^
> include/linux/srcutree.h:135:34: note: expanded from macro 'DEFINE_STATIC_SRCU'
> #define DEFINE_STATIC_SRCU(name) __DEFINE_SRCU(name, static)
> ^
> include/linux/srcutree.h:127:13: note: expanded from macro '__DEFINE_SRCU'
> __section(___srcu_struct_ptrs) = &name
> ^
> drivers/dax/super.c:70:6: warning: no previous prototype for function '__generic_fsdax_supported' [-Wmissing-prototypes]
> bool __generic_fsdax_supported(struct dax_device *dax_dev,
> ^
> drivers/dax/super.c:70:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
> bool __generic_fsdax_supported(struct dax_device *dax_dev,
> ^
> static
> drivers/dax/super.c:168:6: warning: no previous prototype for function '__bdev_dax_supported' [-Wmissing-prototypes]
> bool __bdev_dax_supported(struct block_device *bdev, int blocksize)
> ^
> drivers/dax/super.c:168:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
> bool __bdev_dax_supported(struct block_device *bdev, int blocksize)
> ^
> static
> drivers/dax/super.c:452:6: warning: no previous prototype for function 'run_dax' [-Wmissing-prototypes]
> void run_dax(struct dax_device *dax_dev)
> ^
> drivers/dax/super.c:452:1: 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
> 3 warnings and 1 error generated.
Please drop commit c1370c128cf4 ("srcu: Avoid escaped section names"),
it has been fixed in a different way as of v5.10-rc1, in
commit 33def8498fdd ("treewide: Convert macro and uses of __section(foo)
to __section("foo")").
Cheers,
Nathan
next prev parent reply other threads:[~2020-10-27 1:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-27 0:50 kernel test robot
2020-10-27 1:53 ` Nathan Chancellor [this message]
2020-10-27 3:26 ` Paul E. McKenney
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