[usb:usb-testing 55/56] drivers/usb/typec/tcpm/tcpci.c:118:5: sparse: sparse: symbol 'tcpci_apply_rc' was not declared. Should it be static?

Sunday, 23 May 2021


tree:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
head:   5cc59c418fde9d02859996707b9d5dfd2941c50b
commit: 7257fbc7c598617ca71605089264c61636d52157 [55/56] usb: typec: tcpci: Implement
callback for apply_rc
config: riscv-randconfig-s031-20210522 (attached as .config)
compiler: riscv32-linux-gcc (GCC) 9.3.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.3-341-g8af24329-dirty
        #
https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git/commit/?id...
        git remote add usb https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
        git fetch --no-tags usb usb-testing
        git checkout 7257fbc7c598617ca71605089264c61636d52157
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1
CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=riscv 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com&gt;


sparse warnings: (new ones prefixed by >>)
...
> drivers/usb/typec/tcpm/tcpci.c:118:5: sparse: sparse: symbol
'tcpci_apply_rc' was not declared. Should it be static? 
vim +/tcpci_apply_rc +118 drivers/usb/typec/tcpm/tcpci.c

   117	
...
 118	int tcpci_apply_rc(struct tcpc_dev *tcpc, enum typec_cc_status
cc, enum typec_cc_polarity polarity)    119	{
   120		struct tcpci *tcpci = tcpc_to_tcpci(tcpc);
   121		unsigned int reg;
   122		int ret;
   123	
   124		ret = regmap_read(tcpci->regmap, TCPC_ROLE_CTRL, &reg);
   125		if (ret < 0)
   126			return ret;
   127	
   128		/*
   129		 * APPLY_RC state is when ROLE_CONTROL.CC1 != ROLE_CONTROL.CC2 and vbus
autodischarge on
   130		 * disconnect is disabled. Bail out when ROLE_CONTROL.CC1 != ROLE_CONTROL.CC2.
   131		 */
   132		if (((reg & (TCPC_ROLE_CTRL_CC2_MASK << TCPC_ROLE_CTRL_CC2_SHIFT))
>>
   133		     TCPC_ROLE_CTRL_CC2_SHIFT) !=
   134		    ((reg & (TCPC_ROLE_CTRL_CC1_MASK << TCPC_ROLE_CTRL_CC1_SHIFT))
>>
   135		     TCPC_ROLE_CTRL_CC1_SHIFT))
   136			return 0;
   137	
   138		return regmap_update_bits(tcpci->regmap, TCPC_ROLE_CTRL, polarity ==
TYPEC_POLARITY_CC1 ?
   139					  TCPC_ROLE_CTRL_CC2_MASK << TCPC_ROLE_CTRL_CC2_SHIFT :
   140					  TCPC_ROLE_CTRL_CC1_MASK << TCPC_ROLE_CTRL_CC1_SHIFT,
   141					  TCPC_ROLE_CTRL_CC_OPEN);
   142	}
   143	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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