* [ti:ti-rt-linux-5.4.y 10/10] drivers/connector/cn_proc.c:44:30: warning: unused variable 'send_msg_lock'
@ 2020-12-09 21:06 kernel test robot
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From: kernel test robot @ 2020-12-09 21:06 UTC (permalink / raw)
To: kbuild-all
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tree: git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git ti-rt-linux-5.4.y
head: 39a31e930c9ef3b4f39306c49cbaa9c58c94e353
commit: 39a31e930c9ef3b4f39306c49cbaa9c58c94e353 [10/10] Merged TI feature ti_linux_base_rt into ti-rt-linux-5.4.y
config: arm-randconfig-r015-20201210 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 1968804ac726e7674d5de22bc2204b45857da344)
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
git remote add ti git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git
git fetch --no-tags ti ti-rt-linux-5.4.y
git checkout 39a31e930c9ef3b4f39306c49cbaa9c58c94e353
# 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/connector/cn_proc.c:44:30: warning: unused variable 'send_msg_lock' [-Wunused-const-variable]
static DEFINE_LOCAL_IRQ_LOCK(send_msg_lock);
^
1 warning generated.
vim +/send_msg_lock +44 drivers/connector/cn_proc.c
9f46080c41d5f3 Matt Helsley 2005-11-07 41
cc398c2eae35b1 David S. Miller 2006-01-08 42 /* proc_event_counts is used as the sequence number of the netlink message */
9f46080c41d5f3 Matt Helsley 2005-11-07 43 static DEFINE_PER_CPU(__u32, proc_event_counts) = { 0 };
78412101a22410 Mike Galbraith 2016-10-16 @44 static DEFINE_LOCAL_IRQ_LOCK(send_msg_lock);
9f46080c41d5f3 Matt Helsley 2005-11-07 45
:::::: The code at line 44 was first introduced by commit
:::::: 78412101a22410944389c3bbc954ba97a0f47e0f connector/cn_proc: Protect send_msg() with a local lock on RT
:::::: TO: Mike Galbraith <umgwanakikbuti@gmail.com>
:::::: CC: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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2020-12-09 21:06 [ti:ti-rt-linux-5.4.y 10/10] drivers/connector/cn_proc.c:44:30: warning: unused variable 'send_msg_lock' kernel test robot
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