[usb:usb-next 5/9] drivers/usb/renesas_usbhs/mod.c:195:6: warning: variable 'intenb0' set but not used

* [usb:usb-next 5/9] drivers/usb/renesas_usbhs/mod.c:195:6: warning: variable 'intenb0' set but not used
@ 2021-12-22  9:36 ` kernel test robot
  0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2021-12-22  9:36 UTC (permalink / raw)
  To: Lad Prabhakar; +Cc: llvm, kbuild-all, linux-usb, Greg Kroah-Hartman

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-next
head:   ce1d37cb7697abcc3d892558acd33a1333596534
commit: 22ae6415c702680b1d3170717ce34ee31656f8b6 [5/9] usb: renesas_usbhs: Use platform_get_irq() to get the interrupt
config: hexagon-randconfig-r041-20211222 (https://download.01.org/0day-ci/archive/20211222/202112221724.CBz2Bjz2-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project de4e0195ae1c39f1c3b07834b8e32c113f4f20eb)
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
        # https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git/commit/?id=22ae6415c702680b1d3170717ce34ee31656f8b6
        git remote add usb https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
        git fetch --no-tags usb usb-next
        git checkout 22ae6415c702680b1d3170717ce34ee31656f8b6
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/usb/renesas_usbhs/

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/usb/renesas_usbhs/mod.c:195:6: warning: variable 'intenb0' set but not used [-Wunused-but-set-variable]
           u16 intenb0, intenb1;
               ^
   1 warning generated.

vim +/intenb0 +195 drivers/usb/renesas_usbhs/mod.c

f1407d5c66240b Kuninori Morimoto  2011-04-04  190  
697d5c004e3901 Shimoda, Yoshihiro 2012-08-20  191  static int usbhs_status_get_each_irq(struct usbhs_priv *priv,
f1407d5c66240b Kuninori Morimoto  2011-04-04  192  				     struct usbhs_irq_state *state)
f1407d5c66240b Kuninori Morimoto  2011-04-04  193  {
f1407d5c66240b Kuninori Morimoto  2011-04-04  194  	struct usbhs_mod *mod = usbhs_mod_get_current(priv);
697d5c004e3901 Shimoda, Yoshihiro 2012-08-20 @195  	u16 intenb0, intenb1;
c4d8199ba1a7aa Yoshihiro Shimoda  2014-08-22  196  	unsigned long flags;
f1407d5c66240b Kuninori Morimoto  2011-04-04  197  
c4d8199ba1a7aa Yoshihiro Shimoda  2014-08-22  198  	/********************  spin lock ********************/
c4d8199ba1a7aa Yoshihiro Shimoda  2014-08-22  199  	usbhs_lock(priv, flags);
f1407d5c66240b Kuninori Morimoto  2011-04-04  200  	state->intsts0 = usbhs_read(priv, INTSTS0);
697d5c004e3901 Shimoda, Yoshihiro 2012-08-20  201  	intenb0 = usbhs_read(priv, INTENB0);
88a25e02f35e56 Nobuhiro Iwamatsu  2015-01-09  202  
88a25e02f35e56 Nobuhiro Iwamatsu  2015-01-09  203  	if (usbhs_mod_is_host(priv)) {
88a25e02f35e56 Nobuhiro Iwamatsu  2015-01-09  204  		state->intsts1 = usbhs_read(priv, INTSTS1);
697d5c004e3901 Shimoda, Yoshihiro 2012-08-20  205  		intenb1 = usbhs_read(priv, INTENB1);
672bfdaa310004 Arnd Bergmann      2015-05-22  206  	} else {
672bfdaa310004 Arnd Bergmann      2015-05-22  207  		state->intsts1 = intenb1 = 0;
88a25e02f35e56 Nobuhiro Iwamatsu  2015-01-09  208  	}
697d5c004e3901 Shimoda, Yoshihiro 2012-08-20  209  
5ea68d541df200 Kuninori Morimoto  2011-04-28  210  	/* mask */
5ea68d541df200 Kuninori Morimoto  2011-04-28  211  	if (mod) {
f1407d5c66240b Kuninori Morimoto  2011-04-04  212  		state->brdysts = usbhs_read(priv, BRDYSTS);
f1407d5c66240b Kuninori Morimoto  2011-04-04  213  		state->nrdysts = usbhs_read(priv, NRDYSTS);
f1407d5c66240b Kuninori Morimoto  2011-04-04  214  		state->bempsts = usbhs_read(priv, BEMPSTS);
f1407d5c66240b Kuninori Morimoto  2011-04-04  215  
f1407d5c66240b Kuninori Morimoto  2011-04-04  216  		state->bempsts &= mod->irq_bempsts;
f1407d5c66240b Kuninori Morimoto  2011-04-04  217  		state->brdysts &= mod->irq_brdysts;
f1407d5c66240b Kuninori Morimoto  2011-04-04  218  	}
c4d8199ba1a7aa Yoshihiro Shimoda  2014-08-22  219  	usbhs_unlock(priv, flags);
c4d8199ba1a7aa Yoshihiro Shimoda  2014-08-22  220  	/********************  spin unlock ******************/
697d5c004e3901 Shimoda, Yoshihiro 2012-08-20  221  
697d5c004e3901 Shimoda, Yoshihiro 2012-08-20  222  	return 0;
5ea68d541df200 Kuninori Morimoto  2011-04-28  223  }
f1407d5c66240b Kuninori Morimoto  2011-04-04  224  

:::::: The code at line 195 was first introduced by commit
:::::: 697d5c004e390102efbf9320a5416873679bea81 usb: renesas_usbhs: modify the irq handler for sharing irq

:::::: TO: Shimoda, Yoshihiro <yoshihiro.shimoda.uh@renesas.com>
:::::: CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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

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