tree: https://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft.git linux-next head: 342f43af70dbc74f8629381998f92c060e1763a2 commit: 342f43af70dbc74f8629381998f92c060e1763a2 [1/1] iscsi_ibft: fix crash due to KASLR physical memory remapping config: x86_64-allyesconfig (attached as .config) compiler: gcc-10 (Ubuntu 10.3.0-1ubuntu1~20.04) 10.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft.git/commit/?id=342f43af70dbc74f8629381998f92c060e1763a2 git remote add ibft https://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft.git git fetch --no-tags ibft linux-next git checkout 342f43af70dbc74f8629381998f92c060e1763a2 # save the attached .config to linux build tree make W=1 ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): In file included from include/linux/printk.h:7, from include/linux/kernel.h:17, from include/asm-generic/bug.h:20, from arch/x86/include/asm/bug.h:84, from include/linux/bug.h:5, from include/linux/mmdebug.h:5, from include/linux/mm.h:9, from include/linux/memblock.h:13, from drivers/firmware/iscsi_ibft_find.c:13: drivers/firmware/iscsi_ibft_find.c: In function 'reserve_ibft_region': >> include/linux/kern_levels.h:5:18: warning: format '%lx' expects argument of type 'long unsigned int', but argument 2 has type 'phys_addr_t' {aka 'long long unsigned int'} [-Wformat=] 5 | #define KERN_SOH "\001" /* ASCII Start Of Header */ | ^~~~~~ include/linux/kern_levels.h:14:19: note: in expansion of macro 'KERN_SOH' 14 | #define KERN_INFO KERN_SOH "6" /* informational */ | ^~~~~~~~ include/linux/printk.h:373:9: note: in expansion of macro 'KERN_INFO' 373 | printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~~ drivers/firmware/iscsi_ibft_find.c:86:6: note: in expansion of macro 'pr_info' 86 | pr_info("iBFT found at 0x%lx.\n", ibft_phys_addr); | ^~~~~~~ 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 :::::: The code at line 5 was first introduced by commit :::::: 04d2c8c83d0e3ac5f78aeede51babb3236200112 printk: convert the format for KERN_ to a 2 byte pattern :::::: TO: Joe Perches :::::: CC: Linus Torvalds --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org