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* kernel/trace/trace_events_user.c:392:38: sparse: sparse: Using plain integer as NULL pointer
@ 2022-03-28  9:22 kernel test robot
  0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2022-03-28  9:22 UTC (permalink / raw)
  To: Beau Belgrave; +Cc: kbuild-all, linux-kernel, Steven Rostedt (Google)

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   ae085d7f9365de7da27ab5c0d16b12d51ea7fca9
commit: aa3b2b4c669205200615dd8a2cc4af4f81fd0335 user_events: Add print_fmt generation support for basic types
date:   6 weeks ago
config: i386-randconfig-s001-20220328 (https://download.01.org/0day-ci/archive/20220328/202203281754.okRdoDAL-lkp@intel.com/config)
compiler: gcc-9 (Ubuntu 9.4.0-1ubuntu1~20.04.1) 9.4.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.4-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=aa3b2b4c669205200615dd8a2cc4af4f81fd0335
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout aa3b2b4c669205200615dd8a2cc4af4f81fd0335
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash drivers/acpi/apei/ drivers/gpu/drm/ kernel/trace/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)
>> kernel/trace/trace_events_user.c:392:38: sparse: sparse: Using plain integer as NULL pointer
   kernel/trace/trace_events_user.c:413:40: sparse: sparse: Using plain integer as NULL pointer
   kernel/trace/trace_events_user.c:858:16: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/trace/trace_events_user.c:858:16: sparse:    void [noderef] __rcu *
   kernel/trace/trace_events_user.c:858:16: sparse:    void *
   kernel/trace/trace_events_user.c:922:13: sparse: sparse: cast removes address space '__user' of expression
   kernel/trace/trace_events_user.c:922:13: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void [noderef] __user *buf @@     got char * @@
   kernel/trace/trace_events_user.c:922:13: sparse:     expected void [noderef] __user *buf
   kernel/trace/trace_events_user.c:922:13: sparse:     got char *
   kernel/trace/trace_events_user.c:938:16: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/trace/trace_events_user.c:938:16: sparse:    void [noderef] __rcu *
   kernel/trace/trace_events_user.c:938:16: sparse:    void *
   kernel/trace/trace_events_user.c:965:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/trace/trace_events_user.c:965:9: sparse:    void [noderef] __rcu *
   kernel/trace/trace_events_user.c:965:9: sparse:    void *

vim +392 kernel/trace/trace_events_user.c

   361	
   362	static const char *user_field_format(const char *type)
   363	{
   364		if (strcmp(type, "s64") == 0)
   365			return "%lld";
   366		if (strcmp(type, "u64") == 0)
   367			return "%llu";
   368		if (strcmp(type, "s32") == 0)
   369			return "%d";
   370		if (strcmp(type, "u32") == 0)
   371			return "%u";
   372		if (strcmp(type, "int") == 0)
   373			return "%d";
   374		if (strcmp(type, "unsigned int") == 0)
   375			return "%u";
   376		if (strcmp(type, "s16") == 0)
   377			return "%d";
   378		if (strcmp(type, "u16") == 0)
   379			return "%u";
   380		if (strcmp(type, "short") == 0)
   381			return "%d";
   382		if (strcmp(type, "unsigned short") == 0)
   383			return "%u";
   384		if (strcmp(type, "s8") == 0)
   385			return "%d";
   386		if (strcmp(type, "u8") == 0)
   387			return "%u";
   388		if (strcmp(type, "char") == 0)
   389			return "%d";
   390		if (strcmp(type, "unsigned char") == 0)
   391			return "%u";
 > 392		if (strstr(type, "char[") != 0)
   393			return "%s";
   394	
   395		/* Unknown, likely struct, allowed treat as 64-bit */
   396		return "%llu";
   397	}
   398	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

^ permalink raw reply	[flat|nested] 2+ messages in thread

* kernel/trace/trace_events_user.c:392:38: sparse: sparse: Using plain integer as NULL pointer
@ 2022-07-15 23:27 kernel test robot
  0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2022-07-15 23:27 UTC (permalink / raw)
  To: Beau Belgrave; +Cc: kbuild-all, linux-kernel, Steven Rostedt (Google)

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   9b59ec8d50a1f28747ceff9a4f39af5deba9540e
commit: aa3b2b4c669205200615dd8a2cc4af4f81fd0335 user_events: Add print_fmt generation support for basic types
date:   5 months ago
config: sparc64-randconfig-s031-20220716 (https://download.01.org/0day-ci/archive/20220716/202207160723.D8leglO3-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 12.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-39-gce1a6720-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=aa3b2b4c669205200615dd8a2cc4af4f81fd0335
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout aa3b2b4c669205200615dd8a2cc4af4f81fd0335
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=sparc64 SHELL=/bin/bash drivers/usb/gadget/function/ drivers/virtio/ kernel/trace/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)
>> kernel/trace/trace_events_user.c:392:38: sparse: sparse: Using plain integer as NULL pointer
   kernel/trace/trace_events_user.c:413:40: sparse: sparse: Using plain integer as NULL pointer
   kernel/trace/trace_events_user.c:858:16: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/trace/trace_events_user.c:858:16: sparse:    void [noderef] __rcu *
   kernel/trace/trace_events_user.c:858:16: sparse:    void *
   kernel/trace/trace_events_user.c:922:13: sparse: sparse: cast removes address space '__user' of expression
   kernel/trace/trace_events_user.c:922:13: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void [noderef] __user *buf @@     got char * @@
   kernel/trace/trace_events_user.c:922:13: sparse:     expected void [noderef] __user *buf
   kernel/trace/trace_events_user.c:922:13: sparse:     got char *
   kernel/trace/trace_events_user.c:938:16: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/trace/trace_events_user.c:938:16: sparse:    void [noderef] __rcu *
   kernel/trace/trace_events_user.c:938:16: sparse:    void *
   kernel/trace/trace_events_user.c:965:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/trace/trace_events_user.c:965:9: sparse:    void [noderef] __rcu *
   kernel/trace/trace_events_user.c:965:9: sparse:    void *

vim +392 kernel/trace/trace_events_user.c

   361	
   362	static const char *user_field_format(const char *type)
   363	{
   364		if (strcmp(type, "s64") == 0)
   365			return "%lld";
   366		if (strcmp(type, "u64") == 0)
   367			return "%llu";
   368		if (strcmp(type, "s32") == 0)
   369			return "%d";
   370		if (strcmp(type, "u32") == 0)
   371			return "%u";
   372		if (strcmp(type, "int") == 0)
   373			return "%d";
   374		if (strcmp(type, "unsigned int") == 0)
   375			return "%u";
   376		if (strcmp(type, "s16") == 0)
   377			return "%d";
   378		if (strcmp(type, "u16") == 0)
   379			return "%u";
   380		if (strcmp(type, "short") == 0)
   381			return "%d";
   382		if (strcmp(type, "unsigned short") == 0)
   383			return "%u";
   384		if (strcmp(type, "s8") == 0)
   385			return "%d";
   386		if (strcmp(type, "u8") == 0)
   387			return "%u";
   388		if (strcmp(type, "char") == 0)
   389			return "%d";
   390		if (strcmp(type, "unsigned char") == 0)
   391			return "%u";
 > 392		if (strstr(type, "char[") != 0)
   393			return "%s";
   394	
   395		/* Unknown, likely struct, allowed treat as 64-bit */
   396		return "%llu";
   397	}
   398	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2022-07-15 23:28 UTC | newest]

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