linux-kernel - Re: [PATCH v4 2/4] Watchdog: sp5100_tco: Refactor MMIO base address initialization

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Message-ID: <202201311012.U53Rg3e2-lkp@intel.com>
Date:   Mon, 31 Jan 2022 10:52:54 +0800
From:   kernel test robot <lkp@...el.com>
To:     Terry Bowman <terry.bowman@....com>, linux@...ck-us.net,
        linux-watchdog@...r.kernel.org, jdelvare@...e.com,
        linux-i2c@...r.kernel.org, wsa@...nel.org,
        andy.shevchenko@...il.com, rafael.j.wysocki@...el.com
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        wim@...ux-watchdog.org
Subject: Re: [PATCH v4 2/4] Watchdog: sp5100_tco: Refactor MMIO base address
 initialization

Hi Terry,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on groeck-staging/hwmon-next]
[also build test WARNING on linux/master linus/master v5.17-rc2 next-20220128]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Terry-Bowman/Watchdog-sp5100_tco-Replace-cd6h-cd7h-port-I-O-accesses-with-MMIO-accesses/20220131-031525
base:   https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git hwmon-next
config: x86_64-randconfig-m001-20220131 (https://download.01.org/0day-ci/archive/20220131/202201311012.U53Rg3e2-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/e6855f66e7e915cd09a8f8dae411997df8a7c641
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Terry-Bowman/Watchdog-sp5100_tco-Replace-cd6h-cd7h-port-I-O-accesses-with-MMIO-accesses/20220131-031525
        git checkout e6855f66e7e915cd09a8f8dae411997df8a7c641
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/watchdog/

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 >>):

   In file included from include/linux/device.h:15,
                    from include/linux/pci.h:37,
                    from drivers/watchdog/sp5100_tco.c:40:
   drivers/watchdog/sp5100_tco.c: In function 'sp5100_tco_prepare_base':
>> drivers/watchdog/sp5100_tco.c:270:16: warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'void *' [-Wformat=]
     270 |  dev_info(dev, "Using 0x%08x for watchdog MMIO address\n", tco->tcobase);
         |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/dev_printk.h:110:16: note: in definition of macro 'dev_printk_index_wrap'
     110 |   _p_func(dev, fmt, ##__VA_ARGS__);   \
         |                ^~~
   include/linux/dev_printk.h:150:51: note: in expansion of macro 'dev_fmt'
     150 |  dev_printk_index_wrap(_dev_info, KERN_INFO, dev, dev_fmt(fmt), ##__VA_ARGS__)
         |                                                   ^~~~~~~
   drivers/watchdog/sp5100_tco.c:270:2: note: in expansion of macro 'dev_info'
     270 |  dev_info(dev, "Using 0x%08x for watchdog MMIO address\n", tco->tcobase);
         |  ^~~~~~~~
   drivers/watchdog/sp5100_tco.c:270:28: note: format string is defined here
     270 |  dev_info(dev, "Using 0x%08x for watchdog MMIO address\n", tco->tcobase);
         |                         ~~~^
         |                            |
         |                            unsigned int
         |                         %08p


vim +270 drivers/watchdog/sp5100_tco.c

   238	
   239	static u32 sp5100_tco_prepare_base(struct sp5100_tco *tco,
   240					   u32 mmio_addr,
   241					   u32 alt_mmio_addr,
   242					   const char *dev_name)
   243	{
   244		struct device *dev = tco->wdd.parent;
   245	
   246		dev_dbg(dev, "Got 0x%08x from SBResource_MMIO register\n", mmio_addr);
   247	
   248		if (!mmio_addr && !alt_mmio_addr)
   249			return -ENODEV;
   250	
   251		/* Check for MMIO address and alternate MMIO address conflicts */
   252		if (mmio_addr)
   253			mmio_addr = sp5100_tco_request_region(dev, mmio_addr, dev_name);
   254	
   255		if (!mmio_addr && alt_mmio_addr)
   256			mmio_addr = sp5100_tco_request_region(dev, alt_mmio_addr, dev_name);
   257	
   258		if (!mmio_addr) {
   259			dev_err(dev, "Failed to reserve MMIO or alternate MMIO region\n");
   260			return -EBUSY;
   261		}
   262	
   263		tco->tcobase = devm_ioremap(dev, mmio_addr, SP5100_WDT_MEM_MAP_SIZE);
   264		if (!tco->tcobase) {
   265			dev_err(dev, "MMIO address 0x%08x failed mapping\n", mmio_addr);
   266			devm_release_mem_region(dev, mmio_addr, SP5100_WDT_MEM_MAP_SIZE);
   267			return -ENOMEM;
   268		}
   269	
 > 270		dev_info(dev, "Using 0x%08x for watchdog MMIO address\n", tco->tcobase);
   271	
   272		return 0;
   273	}
   274	

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