[ti:ti-rt-linux-5.10.y 10090/10108] drivers/clocksource/timer-ti-dm-systimer.c:528:13: warning: variable 'val' set but not used

From: kernel test robot
Date: Mon Oct 25 2021 - 08:33:18 EST


tree: git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git ti-rt-linux-5.10.y
head: b9f28fcb222bc4508077366b05ad5d44984087b0
commit: 7a20bf8a5be4f31f38b9315ecea07ee30697650d [10090/10108] clocksource/drivers/timer-ti-dm: Extend pending interrupt ACK for gic
config: arm-defconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0
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
git remote add ti git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git
git fetch --no-tags ti ti-rt-linux-5.10.y
git checkout 7a20bf8a5be4f31f38b9315ecea07ee30697650d
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=arm

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

drivers/clocksource/timer-ti-dm-systimer.c: In function 'omap_clockevent_late_ack':
>> drivers/clocksource/timer-ti-dm-systimer.c:528:13: warning: variable 'val' set but not used [-Wunused-but-set-variable]
528 | u32 val;
| ^~~
drivers/clocksource/timer-ti-dm-systimer.c: In function 'dmtimer_clockevent_init':
drivers/clocksource/timer-ti-dm-systimer.c:671:46: warning: passing argument 1 of 'irq_to_desc' makes integer from pointer without a cast [-Wint-conversion]
671 | clkev_irq_desc = irq_to_desc(&clkevt->dev.irq);
| ^~~~~~~~~~~~~~~~
| |
| int *
In file included from include/linux/interrupt.h:10,
from drivers/clocksource/timer-ti-dm-systimer.c:6:
include/linux/irqnr.h:9:50: note: expected 'unsigned int' but argument is of type 'int *'
9 | extern struct irq_desc *irq_to_desc(unsigned int irq);
| ~~~~~~~~~~~~~^~~


vim +/val +528 drivers/clocksource/timer-ti-dm-systimer.c

525
526 static void omap_clockevent_late_ack(void)
527 {
> 528 u32 val;
529
530 if (!clkev_irq_chip)
531 return;
532
533 /*
534 * For the gic to properly clear an interrupt it must be read
535 * from INTACK register
536 */
537 if (gic_cpu_base)
538 val = readl_relaxed(gic_cpu_base + GIC_CPU_INTACK);
539 if (clkev_irq_chip->irq_ack)
540 clkev_irq_chip->irq_ack(&clkev_irq_desc->irq_data);
541 if (clkev_irq_chip->irq_eoi)
542 clkev_irq_chip->irq_eoi(&clkev_irq_desc->irq_data);
543
544 clkev_irq_chip->irq_unmask(&clkev_irq_desc->irq_data);
545 }
546

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

Attachment: .config.gz
Description: application/gzip