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@xxxxxxxxxxx> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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