linux-kernel - [ti:ti-rt-linux-5.10.y 10089/10108] drivers/clocksource/timer-ti-dm-systimer.c:649:46: warning: passing argument 1 of 'irq_to_desc' makes integer from pointer without a cast

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Date:   Mon, 25 Oct 2021 18:48:15 +0800
From:   kernel test robot <lkp@...el.com>
To:     Kevin Hilman <khilman@...libre.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Praneeth Bajjuri <praneeth@...com>,
        Dave Gerlach <d-gerlach@...com>, Tero Kristo <t-kristo@...com>
Subject: [ti:ti-rt-linux-5.10.y 10089/10108]
 drivers/clocksource/timer-ti-dm-systimer.c:649:46: warning: passing argument
 1 of 'irq_to_desc' makes integer from pointer without a cast

tree:   git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git ti-rt-linux-5.10.y
head:   b9f28fcb222bc4508077366b05ad5d44984087b0
commit: 6e260fc2770c157f81704b403e6e3d40e0e10f97 [10089/10108] clocksource/drivers/timer-ti-dm: ack pending interrupt during suspend
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 6e260fc2770c157f81704b403e6e3d40e0e10f97
        # 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@...el.com>

All warnings (new ones prefixed by >>):

   drivers/clocksource/timer-ti-dm-systimer.c: In function 'dmtimer_clockevent_init':
>> drivers/clocksource/timer-ti-dm-systimer.c:649:46: warning: passing argument 1 of 'irq_to_desc' makes integer from pointer without a cast [-Wint-conversion]
     649 |                 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 +/irq_to_desc +649 drivers/clocksource/timer-ti-dm-systimer.c

   622	
   623	static int __init dmtimer_clockevent_init(struct device_node *np)
   624	{
   625		struct dmtimer_clockevent *clkevt;
   626		int error;
   627	
   628		clkevt = kzalloc(sizeof(*clkevt), GFP_KERNEL);
   629		if (!clkevt)
   630			return -ENOMEM;
   631	
   632		error = dmtimer_clkevt_init_common(clkevt, np,
   633						   CLOCK_EVT_FEAT_PERIODIC |
   634						   CLOCK_EVT_FEAT_ONESHOT,
   635						   cpu_possible_mask, "clockevent",
   636						   300);
   637		if (error)
   638			goto err_out_free;
   639	
   640		clockevents_config_and_register(&clkevt->dev, clkevt->t.rate,
   641						3, /* Timer internal resync latency */
   642						0xffffffff);
   643	
   644		if (of_machine_is_compatible("ti,am33xx") ||
   645		    of_machine_is_compatible("ti,am43")) {
   646			clkevt->dev.suspend = omap_clockevent_idle;
   647			clkevt->dev.resume = omap_clockevent_unidle;
   648	
 > 649			clkev_irq_desc = irq_to_desc(&clkevt->dev.irq);
   650			if (clkev_irq_desc)
   651				clkev_irq_chip = irq_desc_get_chip(clkev_irq_desc);
   652		}
   653	
   654		return 0;
   655	
   656	err_out_free:
   657		kfree(clkevt);
   658	
   659		return error;
   660	}
   661	

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

Download attachment ".config.gz" of type "application/gzip" (53692 bytes)