tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: fb893de323e2d39f7a1f6df425703a2edbdf56ea commit: 670d0a4b10704667765f7d18f7592993d02783aa sparse: use identifiers to define address spaces date: 8 weeks ago config: i386-randconfig-s001-20200812 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-168-g9554805c-dirty git checkout 670d0a4b10704667765f7d18f7592993d02783aa # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) drivers/edac/amd64_edac.c:3065:47: sparse: expected struct msr *msrs drivers/edac/amd64_edac.c:3097:48: sparse: sparse: incorrect type in argument 3 (different address spaces) @@ expected struct msr *msrs @@ got struct msr [noderef] __percpu *static [toplevel] msrs @@ drivers/edac/amd64_edac.c:3097:48: sparse: expected struct msr *msrs drivers/edac/amd64_edac.c:3097:48: sparse: got struct msr [noderef] __percpu *static [toplevel] msrs drivers/edac/amd64_edac.c:3116:48: sparse: sparse: incorrect type in argument 3 (different address spaces) @@ expected struct msr *msrs @@ got struct msr [noderef] __percpu *static [toplevel] msrs @@ drivers/edac/amd64_edac.c:3116:48: sparse: expected struct msr *msrs drivers/edac/amd64_edac.c:3116:48: sparse: got struct msr [noderef] __percpu *static [toplevel] msrs drivers/edac/amd64_edac.c:3674:14: sparse: got struct msr * drivers/edac/amd64_edac.c:3711:19: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct msr *msrs @@ got struct msr [noderef] __percpu *static [toplevel] msrs @@ drivers/edac/amd64_edac.c:3711:19: sparse: expected struct msr *msrs drivers/edac/amd64_edac.c:3711:19: sparse: got struct msr [noderef] __percpu *static [toplevel] msrs drivers/edac/amd64_edac.c:3740:19: sparse: expected struct msr *msrs -- drivers/video/fbdev/geode/suspend_gx.c:32:28: sparse: expected void const *q drivers/video/fbdev/geode/suspend_gx.c:32:28: sparse: got void [noderef] __iomem *gp_regs drivers/video/fbdev/geode/suspend_gx.c:33:28: sparse: expected void const *q drivers/video/fbdev/geode/suspend_gx.c:33:28: sparse: got void [noderef] __iomem *dc_regs drivers/video/fbdev/geode/suspend_gx.c:34:28: sparse: expected void const *q drivers/video/fbdev/geode/suspend_gx.c:34:28: sparse: got void [noderef] __iomem *vid_regs drivers/video/fbdev/geode/suspend_gx.c:35:39: sparse: expected void const *q drivers/video/fbdev/geode/suspend_gx.c:35:39: sparse: got void [noderef] __iomem * -- drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c: note: in included file (through drivers/net/wireless/intel/iwlwifi/mvm/..//fw/img.h, drivers/net/wireless/intel/iwlwifi/mvm/..//iwl-trans.h, ...): drivers/net/wireless/intel/iwlwifi/mvm/..//fw/file.h:330:19: sparse: sparse: mixed bitwiseness drivers/net/wireless/intel/iwlwifi/mvm/..//fw/file.h:484:19: sparse: sparse: mixed bitwiseness drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c:3002:63: sparse: expected unsigned char const [usertype] *ies drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c:3003:38: sparse: sparse: dereference of noderef expression drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c:3003:38: sparse: sparse: dereference of noderef expression vim +3065 drivers/edac/amd64_edac.c f6d6ae96576090 Borislav Petkov 2009-11-03 3050 f6d6ae96576090 Borislav Petkov 2009-11-03 3051 /* check MCG_CTL on all the cpus on this node */ d1ea71cdc9801c Borislav Petkov 2013-12-15 3052 static bool nb_mce_bank_enabled_on_node(u16 nid) f6d6ae96576090 Borislav Petkov 2009-11-03 3053 { f6d6ae96576090 Borislav Petkov 2009-11-03 3054 cpumask_var_t mask; 505422517d3f12 Borislav Petkov 2009-12-11 3055 int cpu, nbe; f6d6ae96576090 Borislav Petkov 2009-11-03 3056 bool ret = false; f6d6ae96576090 Borislav Petkov 2009-11-03 3057 f6d6ae96576090 Borislav Petkov 2009-11-03 3058 if (!zalloc_cpumask_var(&mask, GFP_KERNEL)) { 24f9a7fe3f19f3 Borislav Petkov 2010-10-07 3059 amd64_warn("%s: Error allocating mask\n", __func__); f6d6ae96576090 Borislav Petkov 2009-11-03 3060 return false; f6d6ae96576090 Borislav Petkov 2009-11-03 3061 } f6d6ae96576090 Borislav Petkov 2009-11-03 3062 f6d6ae96576090 Borislav Petkov 2009-11-03 3063 get_cpus_on_this_dct_cpumask(mask, nid); f6d6ae96576090 Borislav Petkov 2009-11-03 3064 f6d6ae96576090 Borislav Petkov 2009-11-03 @3065 rdmsr_on_cpus(mask, MSR_IA32_MCG_CTL, msrs); f6d6ae96576090 Borislav Petkov 2009-11-03 3066 f6d6ae96576090 Borislav Petkov 2009-11-03 3067 for_each_cpu(cpu, mask) { 505422517d3f12 Borislav Petkov 2009-12-11 3068 struct msr *reg = per_cpu_ptr(msrs, cpu); 5980bb9cd88a3f Borislav Petkov 2011-01-07 3069 nbe = reg->l & MSR_MCGCTL_NBE; f6d6ae96576090 Borislav Petkov 2009-11-03 3070 956b9ba156dbfd Joe Perches 2012-04-29 3071 edac_dbg(0, "core: %u, MCG_CTL: 0x%llx, NB MSR is %s\n", 505422517d3f12 Borislav Petkov 2009-12-11 3072 cpu, reg->q, f6d6ae96576090 Borislav Petkov 2009-11-03 3073 (nbe ? "enabled" : "disabled")); f6d6ae96576090 Borislav Petkov 2009-11-03 3074 f6d6ae96576090 Borislav Petkov 2009-11-03 3075 if (!nbe) f6d6ae96576090 Borislav Petkov 2009-11-03 3076 goto out; f6d6ae96576090 Borislav Petkov 2009-11-03 3077 } f6d6ae96576090 Borislav Petkov 2009-11-03 3078 ret = true; f6d6ae96576090 Borislav Petkov 2009-11-03 3079 f6d6ae96576090 Borislav Petkov 2009-11-03 3080 out: f6d6ae96576090 Borislav Petkov 2009-11-03 3081 free_cpumask_var(mask); f6d6ae96576090 Borislav Petkov 2009-11-03 3082 return ret; f6d6ae96576090 Borislav Petkov 2009-11-03 3083 } f6d6ae96576090 Borislav Petkov 2009-11-03 3084 :::::: The code at line 3065 was first introduced by commit :::::: f6d6ae965760906d79ab29bc38507608c5971549 amd64_edac: unify MCGCTL ECC switching :::::: TO: Borislav Petkov <borislav.petkov(a)amd.com&gt; :::::: CC: Borislav Petkov <borislav.petkov(a)amd.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org