tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 6145d80cfc62e3ed8f16ff584d6287e6d88b82b9 commit: b1deeeb93933d39098cf9b192ae0ac347e9bbd02 [568/11059] sh: fix trivial misannotations config: sh-randconfig-s031-20210408 (attached as .config) compiler: sh4-linux-gcc (GCC) 9.3.0 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: v0.6.3-279-g6d5d9b42-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commi... git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout b1deeeb93933d39098cf9b192ae0ac347e9bbd02 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=sh 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 >>) arch/sh/kernel/traps_32.c:574:9: sparse: expected unsigned short const [noderef] __user *__gu_addr arch/sh/kernel/traps_32.c:574:9: sparse: got unsigned short * arch/sh/kernel/traps_32.c:563:5: sparse: sparse: symbol 'is_dsp_inst' was not declared. Should it be static? vim +574 arch/sh/kernel/traps_32.c ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 558 ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 559 #ifdef CONFIG_SH_DSP ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 560 /* ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 561 * SH-DSP support gerg(a)snapgear.com. ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 562 */ ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 563 int is_dsp_inst(struct pt_regs *regs) ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 564 { 882c12c4e1a95e arch/sh/kernel/traps.c Paul Mundt 2007-05-14 565 unsigned short inst = 0; ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 566 ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 567 /* ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 568 * Safe guard if DSP mode is already enabled or we're lacking ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 569 * the DSP altogether. ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 570 */ 11c1965687b0a4 arch/sh/kernel/traps.c Paul Mundt 2006-12-25 571 if (!(current_cpu_data.flags & CPU_HAS_DSP) || (regs->sr & SR_DSP)) ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 572 return 0; ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 573 ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 @574 get_user(inst, ((unsigned short *) regs->pc)); ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 575 ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 576 inst &= 0xf000; ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 577 ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 578 /* Check for any type of DSP or support instruction */ ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 579 if ((inst == 0xf000) || (inst == 0x4000)) ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 580 return 1; ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 581 ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 582 return 0; ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 583 } ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 584 #else ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 585 #define is_dsp_inst(regs) (0) ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 586 #endif /* CONFIG_SH_DSP */ ^1da177e4c3f41 arch/sh/kernel/traps.c Linus Torvalds 2005-04-16 587 :::::: The code at line 574 was first introduced by commit :::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2 :::::: TO: Linus Torvalds <torvalds(a)ppc970.osdl.org&gt; :::::: CC: Linus Torvalds <torvalds(a)ppc970.osdl.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org