drivers/usb/renesas_usbhs/mod.c:195:6: warning: variable 'intenb0' set but not used
From: kernel test robot
Date: Wed Dec 04 2024 - 13:54:12 EST
Hi Lad,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: feffde684ac29a3b7aec82d2df850fbdbdee55e4
commit: 22ae6415c702680b1d3170717ce34ee31656f8b6 usb: renesas_usbhs: Use platform_get_irq() to get the interrupt
date: 2 years, 11 months ago
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20241205/202412050247.vVthPDpE-lkp@xxxxxxxxx/config)
compiler: ClangBuiltLinux clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241205/202412050247.vVthPDpE-lkp@xxxxxxxxx/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202412050247.vVthPDpE-lkp@xxxxxxxxx/
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]
195 | u16 intenb0, intenb1;
| ^
1 warning generated.
vim +/intenb0 +195 drivers/usb/renesas_usbhs/mod.c
f1407d5c66240b3 Kuninori Morimoto 2011-04-04 190
697d5c004e39010 Shimoda, Yoshihiro 2012-08-20 191 static int usbhs_status_get_each_irq(struct usbhs_priv *priv,
f1407d5c66240b3 Kuninori Morimoto 2011-04-04 192 struct usbhs_irq_state *state)
f1407d5c66240b3 Kuninori Morimoto 2011-04-04 193 {
f1407d5c66240b3 Kuninori Morimoto 2011-04-04 194 struct usbhs_mod *mod = usbhs_mod_get_current(priv);
697d5c004e39010 Shimoda, Yoshihiro 2012-08-20 @195 u16 intenb0, intenb1;
c4d8199ba1a7aa3 Yoshihiro Shimoda 2014-08-22 196 unsigned long flags;
f1407d5c66240b3 Kuninori Morimoto 2011-04-04 197
c4d8199ba1a7aa3 Yoshihiro Shimoda 2014-08-22 198 /******************** spin lock ********************/
c4d8199ba1a7aa3 Yoshihiro Shimoda 2014-08-22 199 usbhs_lock(priv, flags);
f1407d5c66240b3 Kuninori Morimoto 2011-04-04 200 state->intsts0 = usbhs_read(priv, INTSTS0);
697d5c004e39010 Shimoda, Yoshihiro 2012-08-20 201 intenb0 = usbhs_read(priv, INTENB0);
88a25e02f35e56a Nobuhiro Iwamatsu 2015-01-09 202
88a25e02f35e56a Nobuhiro Iwamatsu 2015-01-09 203 if (usbhs_mod_is_host(priv)) {
88a25e02f35e56a Nobuhiro Iwamatsu 2015-01-09 204 state->intsts1 = usbhs_read(priv, INTSTS1);
697d5c004e39010 Shimoda, Yoshihiro 2012-08-20 205 intenb1 = usbhs_read(priv, INTENB1);
672bfdaa3100043 Arnd Bergmann 2015-05-22 206 } else {
672bfdaa3100043 Arnd Bergmann 2015-05-22 207 state->intsts1 = intenb1 = 0;
88a25e02f35e56a Nobuhiro Iwamatsu 2015-01-09 208 }
697d5c004e39010 Shimoda, Yoshihiro 2012-08-20 209
5ea68d541df200d Kuninori Morimoto 2011-04-28 210 /* mask */
5ea68d541df200d Kuninori Morimoto 2011-04-28 211 if (mod) {
f1407d5c66240b3 Kuninori Morimoto 2011-04-04 212 state->brdysts = usbhs_read(priv, BRDYSTS);
f1407d5c66240b3 Kuninori Morimoto 2011-04-04 213 state->nrdysts = usbhs_read(priv, NRDYSTS);
f1407d5c66240b3 Kuninori Morimoto 2011-04-04 214 state->bempsts = usbhs_read(priv, BEMPSTS);
f1407d5c66240b3 Kuninori Morimoto 2011-04-04 215
f1407d5c66240b3 Kuninori Morimoto 2011-04-04 216 state->bempsts &= mod->irq_bempsts;
f1407d5c66240b3 Kuninori Morimoto 2011-04-04 217 state->brdysts &= mod->irq_brdysts;
f1407d5c66240b3 Kuninori Morimoto 2011-04-04 218 }
c4d8199ba1a7aa3 Yoshihiro Shimoda 2014-08-22 219 usbhs_unlock(priv, flags);
c4d8199ba1a7aa3 Yoshihiro Shimoda 2014-08-22 220 /******************** spin unlock ******************/
697d5c004e39010 Shimoda, Yoshihiro 2012-08-20 221
697d5c004e39010 Shimoda, Yoshihiro 2012-08-20 222 return 0;
5ea68d541df200d Kuninori Morimoto 2011-04-28 223 }
f1407d5c66240b3 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@xxxxxxxxxxx>
:::::: CC: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
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