Messages in this thread | | | Date | Sun, 27 Dec 2020 02:20:37 +0800 | From | kernel test robot <> | Subject | drivers/misc/cardreader/rtsx_pcr.c:62:20: warning: unused function 'rtsx_pci_disable_aspm' |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 40f78232f97344afbbeb5b0008615f17c4b93466 commit: 5b4258f6721f41b092c63f6ee71be76e9616718b misc: rtsx: rts5249 support runtime PM date: 2 weeks ago config: mips-randconfig-r034-20201225 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project cee1e7d14f4628d6174b33640d502bff3b54ae45) 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 mips cross compiling tool for clang build # apt-get install binutils-mips-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5b4258f6721f41b092c63f6ee71be76e9616718b git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 5b4258f6721f41b092c63f6ee71be76e9616718b # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=mips
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> drivers/misc/cardreader/rtsx_pcr.c:62:20: warning: unused function 'rtsx_pci_disable_aspm' static inline void rtsx_pci_disable_aspm(struct rtsx_pcr ^ fatal error: error in backend: Nested variants found in inline asm string: ' .set push .set mips64r2 .if ( 0x00 ) != -1)) 0x00 ) != -1)) : ($( static struct ftrace_branch_data __attribute__((__aligned__(4))) __attribute__((__section__("_ftrace_branch"))) __if_trace = $( .func = __func__, .file = "arch/mips/include/asm/atomic.h", .line = 153, $); 0x00 ) != -1)) : $))) ) && ( 0 ); .set push; .set mips64r2; .rept 1; sync 0x00; .endr; .set pop; .else; ; .endif 1: ll $0, $1 # atomic_add addu $0, $2 sc $0, $1 beqz $0, 1b .set pop ' clang-12: error: clang frontend command failed with exit code 70 (use -v to see invocation) clang version 12.0.0 (git://gitmirror/llvm_project cee1e7d14f4628d6174b33640d502bff3b54ae45) Target: mipsel-unknown-linux-gnu Thread model: posix InstalledDir: /opt/cross/clang-cee1e7d14f/bin clang-12: note: diagnostic msg: Makefile arch drivers fs include kernel modules.order net scripts security sound source usr
vim +/rtsx_pci_disable_aspm +62 drivers/misc/cardreader/rtsx_pcr.c
ada8a8a13b13a27 drivers/mfd/rtsx_pcr.c Wei WANG 2012-10-29 61 19f3bd548f2750a drivers/mfd/rtsx_pcr.c Micky Ching 2015-02-25 @62 static inline void rtsx_pci_disable_aspm(struct rtsx_pcr *pcr) 19f3bd548f2750a drivers/mfd/rtsx_pcr.c Micky Ching 2015-02-25 63 { 3d1e7aa80d1c0e7 drivers/misc/cardreader/rtsx_pcr.c Bjorn Helgaas 2020-05-21 64 pcie_capability_clear_and_set_word(pcr->pci, PCI_EXP_LNKCTL, 3d1e7aa80d1c0e7 drivers/misc/cardreader/rtsx_pcr.c Bjorn Helgaas 2020-05-21 65 PCI_EXP_LNKCTL_ASPMC, 0); 19f3bd548f2750a drivers/mfd/rtsx_pcr.c Micky Ching 2015-02-25 66 } 19f3bd548f2750a drivers/mfd/rtsx_pcr.c Micky Ching 2015-02-25 67
:::::: The code at line 62 was first introduced by commit :::::: 19f3bd548f2750a8a7e4e6d2f25fdc5f8e2c3ee9 mfd: rtsx: Remove LCTLR defination
:::::: TO: Micky Ching <micky_ching@realsil.com.cn> :::::: CC: Lee Jones <lee.jones@linaro.org>
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