linux-kernel - Re: [PATCH v4 4/4] mmc: sdhci-msm: Rectify DLL programming sequence for SDCC

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Message-ID: <202510022258.5n14WOx5-lkp@intel.com>
Date: Thu, 2 Oct 2025 23:13:38 +0800
From: kernel test robot <lkp@...el.com>
To: Ram Prakash Gupta <quic_rampraka@...cinc.com>,
	Ulf Hansson <ulf.hansson@...aro.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konradybcio@...nel.org>
Cc: oe-kbuild-all@...ts.linux.dev, linux-mmc@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-msm@...r.kernel.org, dmitry.baryshkov@....qualcomm.com,
	quic_rampraka@...cinc.com, quic_pragalla@...cinc.com,
	quic_sayalil@...cinc.com, quic_nitirawa@...cinc.com,
	quic_bhaskarv@...cinc.com, kernel@....qualcomm.com,
	Sachin Gupta <quic_sachgupt@...cinc.com>
Subject: Re: [PATCH v4 4/4] mmc: sdhci-msm: Rectify DLL programming sequence
 for SDCC

Hi Ram,

kernel test robot noticed the following build warnings:

[auto build test WARNING on robh/for-next]
[also build test WARNING on krzk-dt/for-next linus/master ulf-hansson-mmc-mirror/next v6.17 next-20250929]
[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/Ram-Prakash-Gupta/dt-bindings-mmc-Add-dll-hsr-list-for-HS400-and-HS200-modes/20250929-193817
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link:    https://lore.kernel.org/r/20250929113515.26752-5-quic_rampraka%40quicinc.com
patch subject: [PATCH v4 4/4] mmc: sdhci-msm: Rectify DLL programming sequence for SDCC
config: s390-allyesconfig (https://download.01.org/0day-ci/archive/20251002/202510022258.5n14WOx5-lkp@intel.com/config)
compiler: s390-linux-gcc (GCC) 15.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251002/202510022258.5n14WOx5-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202510022258.5n14WOx5-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from include/asm-generic/bug.h:22,
                    from arch/s390/include/asm/bug.h:69,
                    from include/linux/bug.h:5,
                    from include/linux/mmdebug.h:5,
                    from arch/s390/include/asm/cmpxchg.h:11,
                    from arch/s390/include/asm/atomic.h:16,
                    from include/linux/atomic.h:7,
                    from include/asm-generic/bitops/atomic.h:5,
                    from arch/s390/include/asm/bitops.h:75,
                    from include/linux/bitops.h:67,
                    from arch/s390/include/asm/machine.h:25,
                    from arch/s390/include/asm/lowcore.h:13,
                    from arch/s390/include/asm/current.h:13,
                    from arch/s390/include/asm/preempt.h:5,
                    from include/linux/preempt.h:79,
                    from arch/s390/include/asm/timex.h:13,
                    from include/linux/timex.h:67,
                    from include/linux/time32.h:13,
                    from include/linux/time.h:60,
                    from include/linux/stat.h:19,
                    from include/linux/module.h:13,
                    from drivers/mmc/host/sdhci-msm.c:8:
   drivers/mmc/host/sdhci-msm.c: In function 'sdhci_msm_configure_dll':
>> include/linux/kern_levels.h:5:25: warning: format '%u' expects argument of type 'unsigned int', but argument 4 has type 'long unsigned int' [-Wformat=]
       5 | #define KERN_SOH        "\001"          /* ASCII Start Of Header */
         |                         ^~~~~~
   include/linux/printk.h:486:25: note: in definition of macro 'printk_index_wrap'
     486 |                 _p_func(_fmt, ##__VA_ARGS__);                           \
         |                         ^~~~
   include/linux/printk.h:557:9: note: in expansion of macro 'printk'
     557 |         printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
         |         ^~~~~~
   include/linux/kern_levels.h:11:25: note: in expansion of macro 'KERN_SOH'
      11 | #define KERN_ERR        KERN_SOH "3"    /* error conditions */
         |                         ^~~~~~~~
   include/linux/printk.h:557:16: note: in expansion of macro 'KERN_ERR'
     557 |         printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
         |                ^~~~~~~~
   drivers/mmc/host/sdhci-msm.c:927:33: note: in expansion of macro 'pr_err'
     927 |                                 pr_err("%s: %s: Non standard clk freq =%u\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  

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https://github.com/intel/lkp-tests/wiki