Re: [PATCH v2 02/24] mpi3mr: base driver code

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Hi Kashyap,

I love your patch! Perhaps something to improve:

[auto build test WARNING on e09481c55ba7346ab725f41891e1bb61729dda00]

url:    https://github.com/0day-ci/linux/commits/Kashyap-Desai/Introducing-mpi3mr-driver/20210407-100619
base:   e09481c55ba7346ab725f41891e1bb61729dda00
config: arc-allyesconfig (attached as .config)
compiler: arceb-elf-gcc (GCC) 9.3.0
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
        # https://github.com/0day-ci/linux/commit/a8eb9c746b98316c9c916b835394ba7c5f50add3
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Kashyap-Desai/Introducing-mpi3mr-driver/20210407-100619
        git checkout a8eb9c746b98316c9c916b835394ba7c5f50add3
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc 

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/scsi/mpi3mr/mpi3mr_fw.c: In function 'mpi3mr_isr':
   drivers/scsi/mpi3mr/mpi3mr_fw.c:315:6: warning: variable 'midx' set but not used [-Wunused-but-set-variable]
     315 |  u16 midx;
         |      ^~~~
   drivers/scsi/mpi3mr/mpi3mr_fw.c:314:21: warning: variable 'mrioc' set but not used [-Wunused-but-set-variable]
     314 |  struct mpi3mr_ioc *mrioc;
         |                     ^~~~~
   In file included from include/linux/printk.h:7,
                    from include/linux/kernel.h:16,
                    from include/linux/list.h:9,
                    from include/linux/rculist.h:10,
                    from include/linux/pid.h:5,
                    from include/linux/sched.h:14,
                    from include/linux/blkdev.h:5,
                    from drivers/scsi/mpi3mr/mpi3mr.h:13,
                    from drivers/scsi/mpi3mr/mpi3mr_fw.c:10:
   drivers/scsi/mpi3mr/mpi3mr_fw.c: In function 'mpi3mr_process_factsdata':
   include/linux/kern_levels.h:5:18: warning: format '%ld' expects argument of type 'long int', but argument 3 has type 'unsigned int' [-Wformat=]
       5 | #define KERN_SOH "\001"  /* ASCII Start Of Header */
         |                  ^~~~~~
   include/linux/kern_levels.h:12:22: note: in expansion of macro 'KERN_SOH'
      12 | #define KERN_WARNING KERN_SOH "4" /* warning conditions */
         |                      ^~~~~~~~
   include/linux/printk.h:353:9: note: in expansion of macro 'KERN_WARNING'
     353 |  printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
         |         ^~~~~~~~~~~~
   drivers/scsi/mpi3mr/mpi3mr_debug.h:49:2: note: in expansion of macro 'pr_warn'
      49 |  pr_warn("%s: " fmt, (ioc)->name, ##__VA_ARGS__)
         |  ^~~~~~~
   drivers/scsi/mpi3mr/mpi3mr_fw.c:933:3: note: in expansion of macro 'ioc_warn'
     933 |   ioc_warn(mrioc,
         |   ^~~~~~~~
   drivers/scsi/mpi3mr/mpi3mr_fw.c:934:49: note: format string is defined here
     934 |       "IOCFactsdata length mismatch driver_sz(%ld) firmware_sz(%d)\n",
         |                                               ~~^
         |                                                 |
         |                                                 long int
         |                                               %d
   drivers/scsi/mpi3mr/mpi3mr_fw.c: In function 'mpi3mr_cleanup_resources':
>> drivers/scsi/mpi3mr/mpi3mr_fw.c:1332:16: warning: passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type [-Wdiscarded-qualifiers]
    1332 |   iounmap(mrioc->sysif_regs);
         |           ~~~~~^~~~~~~~~~~~
   In file included from include/linux/io.h:13,
                    from include/linux/irq.h:20,
                    from include/asm-generic/hardirq.h:17,
                    from ./arch/arc/include/generated/asm/hardirq.h:1,
                    from include/linux/hardirq.h:10,
                    from include/linux/highmem.h:10,
                    from include/linux/pagemap.h:11,
                    from include/linux/blkdev.h:14,
                    from drivers/scsi/mpi3mr/mpi3mr.h:13,
                    from drivers/scsi/mpi3mr/mpi3mr_fw.c:10:
   arch/arc/include/asm/io.h:35:41: note: expected 'const void *' but argument is of type 'volatile Mpi3SysIfRegs_t *' {aka 'volatile struct _MPI3_SYSIF_REGISTERS *'}
      35 | extern void iounmap(const void __iomem *addr);
         |                     ~~~~~~~~~~~~~~~~~~~~^~~~
   drivers/scsi/mpi3mr/mpi3mr_fw.c: In function 'mpi3mr_init_ioc':
   drivers/scsi/mpi3mr/mpi3mr_fw.c:1476:14: error: implicit declaration of function 'readq'; did you mean 'readl'? [-Werror=implicit-function-declaration]
    1476 |  base_info = readq(&mrioc->sysif_regs->IOCInformation);
         |              ^~~~~
         |              readl
   cc1: some warnings being treated as errors


vim +1332 drivers/scsi/mpi3mr/mpi3mr_fw.c

  1315	
  1316	
  1317	/**
  1318	 * mpi3mr_cleanup_resources - Free PCI resources
  1319	 * @mrioc: Adapter instance reference
  1320	 *
  1321	 * Unmap PCI device memory and disable PCI device.
  1322	 *
  1323	 * Return: 0 on success and non-zero on failure.
  1324	 */
  1325	void mpi3mr_cleanup_resources(struct mpi3mr_ioc *mrioc)
  1326	{
  1327		struct pci_dev *pdev = mrioc->pdev;
  1328	
  1329		mpi3mr_cleanup_isr(mrioc);
  1330	
  1331		if (mrioc->sysif_regs) {
> 1332			iounmap(mrioc->sysif_regs);
  1333			mrioc->sysif_regs = NULL;
  1334		}
  1335	
  1336		if (pci_is_enabled(pdev)) {
  1337			if (mrioc->bars)
  1338				pci_release_selected_regions(pdev, mrioc->bars);
  1339			pci_disable_device(pdev);
  1340		}
  1341	}
  1342	

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

Attachment: .config.gz
Description: application/gzip


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