Hi David, kernel test robot noticed the following build warnings: [auto build test WARNING on akpm-mm/mm-everything] [also build test WARNING on linus/master v6.5-rc3 next-20230727] [cannot apply to next-20230725] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/David-Laight/minmax-Allow-min-max-clamp-if-the-arguments-have-the-same-signedness/20230725-204940 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/48c2cd0407f14859919d4fcbe526234a%40AcuMS.aculab.com patch subject: [PATCH next resend 5/5] minmax: Relax check to allow comparison between int and small unsigned constants. config: microblaze-randconfig-r092-20230725 (https://download.01.org/0day-ci/archive/20230728/202307281520.WNoM3bxU-lkp@xxxxxxxxx/config) compiler: microblaze-linux-gcc (GCC) 12.3.0 reproduce: (https://download.01.org/0day-ci/archive/20230728/202307281520.WNoM3bxU-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202307281520.WNoM3bxU-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>=): >> crypto/skcipher.c:80:16: sparse: unsigned char [usertype] *start >> crypto/skcipher.c:80:16: sparse: int >> crypto/skcipher.c:80:16: sparse: sparse: bad constant expression type >> crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>=): >> crypto/skcipher.c:80:16: sparse: unsigned char [usertype] *start >> crypto/skcipher.c:80:16: sparse: int >> crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>=): >> crypto/skcipher.c:80:16: sparse: unsigned char [usertype] *end_page >> crypto/skcipher.c:80:16: sparse: int >> crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>=): >> crypto/skcipher.c:80:16: sparse: unsigned char [usertype] *start >> crypto/skcipher.c:80:16: sparse: int >> crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>=): >> crypto/skcipher.c:80:16: sparse: unsigned char [usertype] *end_page >> crypto/skcipher.c:80:16: sparse: int crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>): crypto/skcipher.c:80:16: sparse: bad type __UNIQUE_ID___x297 crypto/skcipher.c:80:16: sparse: bad type __UNIQUE_ID___y298 >> crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>=): >> crypto/skcipher.c:80:16: sparse: unsigned char [usertype] *start >> crypto/skcipher.c:80:16: sparse: int >> crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>=): >> crypto/skcipher.c:80:16: sparse: unsigned char [usertype] *end_page >> crypto/skcipher.c:80:16: sparse: int crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>): crypto/skcipher.c:80:16: sparse: bad type __UNIQUE_ID___x297 crypto/skcipher.c:80:16: sparse: bad type __UNIQUE_ID___y298 >> crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>=): >> crypto/skcipher.c:80:16: sparse: unsigned char [usertype] *start >> crypto/skcipher.c:80:16: sparse: int >> crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>=): >> crypto/skcipher.c:80:16: sparse: unsigned char [usertype] *end_page >> crypto/skcipher.c:80:16: sparse: int crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>): crypto/skcipher.c:80:16: sparse: bad type __UNIQUE_ID___x297 crypto/skcipher.c:80:16: sparse: bad type __UNIQUE_ID___y298 >> crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>=): >> crypto/skcipher.c:80:16: sparse: unsigned char [usertype] *start >> crypto/skcipher.c:80:16: sparse: int >> crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>=): >> crypto/skcipher.c:80:16: sparse: unsigned char [usertype] *end_page >> crypto/skcipher.c:80:16: sparse: int crypto/skcipher.c:80:16: sparse: sparse: incompatible types for operation (>): crypto/skcipher.c:80:16: sparse: bad type __UNIQUE_ID___x297 crypto/skcipher.c:80:16: sparse: bad type __UNIQUE_ID___y298 -- drivers/gpu/drm/drm_modes.c: note: in included file (through include/drm/drm_plane.h, include/drm/drm_crtc.h): include/drm/drm_color_mgmt.h:52:16: sparse: sparse: bad integer constant expression include/drm/drm_color_mgmt.h:52:16: sparse: sparse: static assertion failed: "clamp() low limit (typeof(val))(0) greater than high limit (typeof(val))(max)" >> drivers/gpu/drm/drm_modes.c:2474:29: sparse: sparse: incompatible types for operation (>=): >> drivers/gpu/drm/drm_modes.c:2474:29: sparse: char *bpp_end_ptr >> drivers/gpu/drm/drm_modes.c:2474:29: sparse: int >> drivers/gpu/drm/drm_modes.c:2474:29: sparse: sparse: bad constant expression type >> drivers/gpu/drm/drm_modes.c:2474:29: sparse: sparse: incompatible types for operation (>=): >> drivers/gpu/drm/drm_modes.c:2474:29: sparse: char *[addressable] bpp_end_ptr >> drivers/gpu/drm/drm_modes.c:2474:29: sparse: int >> drivers/gpu/drm/drm_modes.c:2474:29: sparse: sparse: incompatible types for operation (>=): >> drivers/gpu/drm/drm_modes.c:2474:29: sparse: char *[addressable] refresh_end_ptr >> drivers/gpu/drm/drm_modes.c:2474:29: sparse: int >> drivers/gpu/drm/drm_modes.c:2474:29: sparse: sparse: incompatible types for operation (>=): >> drivers/gpu/drm/drm_modes.c:2474:29: sparse: char *[addressable] bpp_end_ptr >> drivers/gpu/drm/drm_modes.c:2474:29: sparse: int >> drivers/gpu/drm/drm_modes.c:2474:29: sparse: sparse: incompatible types for operation (>=): >> drivers/gpu/drm/drm_modes.c:2474:29: sparse: char *[addressable] refresh_end_ptr >> drivers/gpu/drm/drm_modes.c:2474:29: sparse: int drivers/gpu/drm/drm_modes.c:2474:29: sparse: sparse: incompatible types for operation (>): drivers/gpu/drm/drm_modes.c:2474:29: sparse: bad type __UNIQUE_ID___x334 drivers/gpu/drm/drm_modes.c:2474:29: sparse: bad type __UNIQUE_ID___y335 -- >> net/ceph/osdmap.c:1773:54: sparse: sparse: incompatible types for operation (>=): >> net/ceph/osdmap.c:1773:54: sparse: void * >> net/ceph/osdmap.c:1773:54: sparse: int >> net/ceph/osdmap.c:1773:54: sparse: sparse: bad constant expression type net/ceph/osdmap.c:2000:46: sparse: sparse: incompatible types for operation (>=): net/ceph/osdmap.c:2000:46: sparse: void * net/ceph/osdmap.c:2000:46: sparse: int net/ceph/osdmap.c:2000:46: sparse: sparse: bad constant expression type net/ceph/osdmap.c:2007:57: sparse: sparse: incompatible types for operation (>=): net/ceph/osdmap.c:2007:57: sparse: void * net/ceph/osdmap.c:2007:57: sparse: int net/ceph/osdmap.c:2007:57: sparse: sparse: bad constant expression type >> net/ceph/osdmap.c:1773:54: sparse: sparse: incompatible types for operation (>=): >> net/ceph/osdmap.c:1773:54: sparse: void * >> net/ceph/osdmap.c:1773:54: sparse: int >> net/ceph/osdmap.c:1773:54: sparse: sparse: incompatible types for operation (>=): >> net/ceph/osdmap.c:1773:54: sparse: void *end >> net/ceph/osdmap.c:1773:54: sparse: int >> net/ceph/osdmap.c:1773:54: sparse: sparse: incompatible types for operation (>=): >> net/ceph/osdmap.c:1773:54: sparse: void * >> net/ceph/osdmap.c:1773:54: sparse: int >> net/ceph/osdmap.c:1773:54: sparse: sparse: incompatible types for operation (>=): >> net/ceph/osdmap.c:1773:54: sparse: void *end >> net/ceph/osdmap.c:1773:54: sparse: int net/ceph/osdmap.c:1773:54: sparse: sparse: incompatible types for operation (<): net/ceph/osdmap.c:1773:54: sparse: bad type __UNIQUE_ID___x318 net/ceph/osdmap.c:1773:54: sparse: bad type __UNIQUE_ID___y319 net/ceph/osdmap.c:2000:46: sparse: sparse: incompatible types for operation (>=): net/ceph/osdmap.c:2000:46: sparse: void * net/ceph/osdmap.c:2000:46: sparse: int net/ceph/osdmap.c:2000:46: sparse: sparse: incompatible types for operation (>=): net/ceph/osdmap.c:2000:46: sparse: void *end net/ceph/osdmap.c:2000:46: sparse: int net/ceph/osdmap.c:2000:46: sparse: sparse: incompatible types for operation (>=): net/ceph/osdmap.c:2000:46: sparse: void * net/ceph/osdmap.c:2000:46: sparse: int net/ceph/osdmap.c:2000:46: sparse: sparse: incompatible types for operation (>=): net/ceph/osdmap.c:2000:46: sparse: void *end net/ceph/osdmap.c:2000:46: sparse: int net/ceph/osdmap.c:2000:46: sparse: sparse: incompatible types for operation (<): net/ceph/osdmap.c:2000:46: sparse: bad type __UNIQUE_ID___x322 net/ceph/osdmap.c:2000:46: sparse: bad type __UNIQUE_ID___y323 net/ceph/osdmap.c:2007:57: sparse: sparse: incompatible types for operation (>=): net/ceph/osdmap.c:2007:57: sparse: void * net/ceph/osdmap.c:2007:57: sparse: int net/ceph/osdmap.c:2007:57: sparse: sparse: incompatible types for operation (>=): net/ceph/osdmap.c:2007:57: sparse: void *end net/ceph/osdmap.c:2007:57: sparse: int net/ceph/osdmap.c:2007:57: sparse: sparse: incompatible types for operation (>=): net/ceph/osdmap.c:2007:57: sparse: void * net/ceph/osdmap.c:2007:57: sparse: int net/ceph/osdmap.c:2007:57: sparse: sparse: incompatible types for operation (>=): net/ceph/osdmap.c:2007:57: sparse: void *end net/ceph/osdmap.c:2007:57: sparse: int net/ceph/osdmap.c:2007:57: sparse: sparse: incompatible types for operation (<): net/ceph/osdmap.c:2007:57: sparse: bad type __UNIQUE_ID___x324 net/ceph/osdmap.c:2007:57: sparse: bad type __UNIQUE_ID___y325 -- >> lib/lzo/lzo1x_compress.c:53:54: sparse: sparse: incompatible types for operation (>=): >> lib/lzo/lzo1x_compress.c:53:54: sparse: unsigned char const *const ip_end >> lib/lzo/lzo1x_compress.c:53:54: sparse: int >> lib/lzo/lzo1x_compress.c:53:54: sparse: sparse: bad constant expression type >> lib/lzo/lzo1x_compress.c:53:54: sparse: sparse: incompatible types for operation (>=): >> lib/lzo/lzo1x_compress.c:53:54: sparse: unsigned char const *const ip_end >> lib/lzo/lzo1x_compress.c:53:54: sparse: int >> lib/lzo/lzo1x_compress.c:53:54: sparse: sparse: incompatible types for operation (>=): >> lib/lzo/lzo1x_compress.c:53:54: sparse: unsigned char const * >> lib/lzo/lzo1x_compress.c:53:54: sparse: int >> lib/lzo/lzo1x_compress.c:53:54: sparse: sparse: incompatible types for operation (>=): >> lib/lzo/lzo1x_compress.c:53:54: sparse: unsigned char const *const ip_end >> lib/lzo/lzo1x_compress.c:53:54: sparse: int >> lib/lzo/lzo1x_compress.c:53:54: sparse: sparse: incompatible types for operation (>=): >> lib/lzo/lzo1x_compress.c:53:54: sparse: unsigned char const * >> lib/lzo/lzo1x_compress.c:53:54: sparse: int lib/lzo/lzo1x_compress.c:53:54: sparse: sparse: incompatible types for operation (<): lib/lzo/lzo1x_compress.c:53:54: sparse: bad type __UNIQUE_ID___x182 lib/lzo/lzo1x_compress.c:53:54: sparse: bad type __UNIQUE_ID___y183 vim +80 crypto/skcipher.c b286d8b1a69066 Herbert Xu 2016-11-22 72 b286d8b1a69066 Herbert Xu 2016-11-22 73 /* Get a spot of the specified length that does not straddle a page. b286d8b1a69066 Herbert Xu 2016-11-22 74 * The caller needs to ensure that there is enough space for this operation. b286d8b1a69066 Herbert Xu 2016-11-22 75 */ b286d8b1a69066 Herbert Xu 2016-11-22 76 static inline u8 *skcipher_get_spot(u8 *start, unsigned int len) b286d8b1a69066 Herbert Xu 2016-11-22 77 { b286d8b1a69066 Herbert Xu 2016-11-22 78 u8 *end_page = (u8 *)(((unsigned long)(start + len - 1)) & PAGE_MASK); b286d8b1a69066 Herbert Xu 2016-11-22 79 b286d8b1a69066 Herbert Xu 2016-11-22 @80 return max(start, end_page); b286d8b1a69066 Herbert Xu 2016-11-22 81 } b286d8b1a69066 Herbert Xu 2016-11-22 82 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
