Re: [V3] tty: serial: qcom-geni-serial: Fix get_clk_div_rate() which otherwise could return a sub-optimal clock rate.

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Hi Vijaya,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on tty/tty-testing]
[also build test WARNING on linus/master v5.19-rc5 next-20220708]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Vijaya-Krishna-Nivarthi/tty-serial-qcom-geni-serial-Fix-get_clk_div_rate-which-otherwise-could-return-a-sub-optimal-clock-rate/20220708-031921
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing
config: arc-randconfig-r004-20220707 (https://download.01.org/0day-ci/archive/20220710/202207100234.kIBTfg5O-lkp@xxxxxxxxx/config)
compiler: arc-elf-gcc (GCC) 11.3.0
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/intel-lab-lkp/linux/commit/fbd8a1a4b7d91ea5caa048e4557ab18b0d08ea86
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Vijaya-Krishna-Nivarthi/tty-serial-qcom-geni-serial-Fix-get_clk_div_rate-which-otherwise-could-return-a-sub-optimal-clock-rate/20220708-031921
        git checkout fbd8a1a4b7d91ea5caa048e4557ab18b0d08ea86
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash drivers/tty/serial/

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

All warnings (new ones prefixed by >>):

   In file included from include/linux/kernel.h:29,
                    from include/linux/clk.h:13,
                    from drivers/tty/serial/qcom_geni_serial.c:4:
   drivers/tty/serial/qcom_geni_serial.c: In function 'get_clk_div_rate':
>> include/linux/kern_levels.h:5:25: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'unsigned int' [-Wformat=]
       5 | #define KERN_SOH        "\001"          /* ASCII Start Of Header */
         |                         ^~~~~~
   include/linux/printk.h:452:25: note: in definition of macro 'printk_index_wrap'
     452 |                 _p_func(_fmt, ##__VA_ARGS__);                           \
         |                         ^~~~
   include/linux/printk.h:131:17: note: in expansion of macro 'printk'
     131 |                 printk(fmt, ##__VA_ARGS__);             \
         |                 ^~~~~~
   include/linux/printk.h:610:9: note: in expansion of macro 'no_printk'
     610 |         no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
         |         ^~~~~~~~~
   include/linux/kern_levels.h:15:25: note: in expansion of macro 'KERN_SOH'
      15 | #define KERN_DEBUG      KERN_SOH "7"    /* debug-level messages */
         |                         ^~~~~~~~
   include/linux/printk.h:610:19: note: in expansion of macro 'KERN_DEBUG'
     610 |         no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
         |                   ^~~~~~~~~~
   drivers/tty/serial/qcom_geni_serial.c:1006:17: note: in expansion of macro 'pr_debug'
    1006 |                 pr_debug("desired_clk-%lu, ser_clk-%lu, clk_div-%lu\n",
         |                 ^~~~~~~~


vim +5 include/linux/kern_levels.h

314ba3520e513a Joe Perches 2012-07-30  4  
04d2c8c83d0e3a Joe Perches 2012-07-30 @5  #define KERN_SOH	"\001"		/* ASCII Start Of Header */
04d2c8c83d0e3a Joe Perches 2012-07-30  6  #define KERN_SOH_ASCII	'\001'
04d2c8c83d0e3a Joe Perches 2012-07-30  7  

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp



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