linux-kernel - Re: [PATCH V4 2/7] mmc: sdhci: Change SDMA address register for v4 mode

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Date:   Tue, 24 Jul 2018 06:28:03 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Chunyan Zhang <zhang.chunyan@...aro.org>
Cc:     kbuild-all@...org, Ulf Hansson <ulf.hansson@...aro.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Orson Zhai <orsonzhai@...il.com>,
        Baolin Wang <baolin.wang@...aro.org>,
        Billows Wu <billows.wu@...eadtrum.com>,
        Jason Wu <jason.wu@...soc.com>, zhang.lyra@...il.com
Subject: Re: [PATCH V4 2/7] mmc: sdhci: Change SDMA address register for v4
 mode

Hi Chunyan,

I love your patch! Perhaps something to improve:

[auto build test WARNING on ulf.hansson-mmc/next]
[also build test WARNING on v4.18-rc6 next-20180723]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Chunyan-Zhang/mmc-add-support-for-sdhci-4-0/20180724-045328
base:   git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc.git next
config: arm-multi_v7_defconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.2.0 make.cross ARCH=arm 

All warnings (new ones prefixed by >>):

   In file included from include/linux/kernel.h:14:0,
                    from include/linux/delay.h:22,
                    from drivers/mmc//host/sdhci.c:16:
   drivers/mmc//host/sdhci.c: In function 'sdhci_data_irq':
>> include/linux/kern_levels.h:5:18: warning: format '%p' expects argument of type 'void *', but argument 3 has type 'dma_addr_t {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/linux/printk.h:136:10: note: in definition of macro 'no_printk'
      printk(fmt, ##__VA_ARGS__);  \
             ^~~
   include/linux/kern_levels.h:15:20: note: in expansion of macro 'KERN_SOH'
    #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */
                       ^~~~~~~~
   include/linux/printk.h:342:12: note: in expansion of macro 'KERN_DEBUG'
     no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
               ^~~~~~~~~~
   drivers/mmc//host/sdhci.c:43:2: note: in expansion of macro 'pr_debug'
     pr_debug("%s: " DRIVER_NAME ": " f, mmc_hostname(host->mmc), ## x)
     ^~~~~~~~
   drivers/mmc//host/sdhci.c:2849:4: note: in expansion of macro 'DBG'
       DBG("DMA base %pad, transferred 0x%06x bytes, next %pad\n",
       ^~~
   drivers/mmc//host/sdhci.c:2849:19: note: format string is defined here
       DBG("DMA base %pad, transferred 0x%06x bytes, next %pad\n",
                     ~^
                     %d
   In file included from include/linux/kernel.h:14:0,
                    from include/linux/delay.h:22,
                    from drivers/mmc//host/sdhci.c:16:
   include/linux/kern_levels.h:5:18: warning: format '%p' expects argument of type 'void *', but argument 5 has type 'dma_addr_t {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/linux/printk.h:136:10: note: in definition of macro 'no_printk'
      printk(fmt, ##__VA_ARGS__);  \
             ^~~
   include/linux/kern_levels.h:15:20: note: in expansion of macro 'KERN_SOH'
    #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */
                       ^~~~~~~~
   include/linux/printk.h:342:12: note: in expansion of macro 'KERN_DEBUG'
     no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
               ^~~~~~~~~~
   drivers/mmc//host/sdhci.c:43:2: note: in expansion of macro 'pr_debug'
     pr_debug("%s: " DRIVER_NAME ": " f, mmc_hostname(host->mmc), ## x)
     ^~~~~~~~
   drivers/mmc//host/sdhci.c:2849:4: note: in expansion of macro 'DBG'
       DBG("DMA base %pad, transferred 0x%06x bytes, next %pad\n",
       ^~~
   drivers/mmc//host/sdhci.c:2849:56: note: format string is defined here
       DBG("DMA base %pad, transferred 0x%06x bytes, next %pad\n",
                                                          ~^
                                                          %d
--
   In file included from include/linux/kernel.h:14:0,
                    from include/linux/delay.h:22,
                    from drivers/mmc/host/sdhci.c:16:
   drivers/mmc/host/sdhci.c: In function 'sdhci_data_irq':
>> include/linux/kern_levels.h:5:18: warning: format '%p' expects argument of type 'void *', but argument 3 has type 'dma_addr_t {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/linux/printk.h:136:10: note: in definition of macro 'no_printk'
      printk(fmt, ##__VA_ARGS__);  \
             ^~~
   include/linux/kern_levels.h:15:20: note: in expansion of macro 'KERN_SOH'
    #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */
                       ^~~~~~~~
   include/linux/printk.h:342:12: note: in expansion of macro 'KERN_DEBUG'
     no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
               ^~~~~~~~~~
   drivers/mmc/host/sdhci.c:43:2: note: in expansion of macro 'pr_debug'
     pr_debug("%s: " DRIVER_NAME ": " f, mmc_hostname(host->mmc), ## x)
     ^~~~~~~~
   drivers/mmc/host/sdhci.c:2849:4: note: in expansion of macro 'DBG'
       DBG("DMA base %pad, transferred 0x%06x bytes, next %pad\n",
       ^~~
   drivers/mmc/host/sdhci.c:2849:19: note: format string is defined here
       DBG("DMA base %pad, transferred 0x%06x bytes, next %pad\n",
                     ~^
                     %d
   In file included from include/linux/kernel.h:14:0,
                    from include/linux/delay.h:22,
                    from drivers/mmc/host/sdhci.c:16:
   include/linux/kern_levels.h:5:18: warning: format '%p' expects argument of type 'void *', but argument 5 has type 'dma_addr_t {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/linux/printk.h:136:10: note: in definition of macro 'no_printk'
      printk(fmt, ##__VA_ARGS__);  \
             ^~~
   include/linux/kern_levels.h:15:20: note: in expansion of macro 'KERN_SOH'
    #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */
                       ^~~~~~~~
   include/linux/printk.h:342:12: note: in expansion of macro 'KERN_DEBUG'
     no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
               ^~~~~~~~~~
   drivers/mmc/host/sdhci.c:43:2: note: in expansion of macro 'pr_debug'
     pr_debug("%s: " DRIVER_NAME ": " f, mmc_hostname(host->mmc), ## x)
     ^~~~~~~~
   drivers/mmc/host/sdhci.c:2849:4: note: in expansion of macro 'DBG'
       DBG("DMA base %pad, transferred 0x%06x bytes, next %pad\n",
       ^~~
   drivers/mmc/host/sdhci.c:2849:56: note: format string is defined here
       DBG("DMA base %pad, transferred 0x%06x bytes, next %pad\n",
                                                          ~^
                                                          %d

vim +5 include/linux/kern_levels.h

314ba352 Joe Perches 2012-07-30  4  
04d2c8c8 Joe Perches 2012-07-30 @5  #define KERN_SOH	"\001"		/* ASCII Start Of Header */
04d2c8c8 Joe Perches 2012-07-30  6  #define KERN_SOH_ASCII	'\001'
04d2c8c8 Joe Perches 2012-07-30  7  

:::::: The code at line 5 was first introduced by commit
:::::: 04d2c8c83d0e3ac5f78aeede51babb3236200112 printk: convert the format for KERN_<LEVEL> to a 2 byte pattern

:::::: TO: Joe Perches <joe@...ches.com>
:::::: CC: Linus Torvalds <torvalds@...ux-foundation.org>

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