12:46 p.m.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: b81b1829e7e39f6cebdf6e4d5484eacbceda8554
commit: 337015573718b161891a3473d25f59273f2e626b printk: Userspace format indexing
support
date: 7 months ago
config: parisc-randconfig-s031-20220213
(https://download.01.org/0day-ci/archive/20220213/202202130955.JyBizoU1-lk...)
compiler: hppa-linux-gcc (GCC) 11.2.0
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-dirty
#
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit...
git remote add linus
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 337015573718b161891a3473d25f59273f2e626b
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1
CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=parisc
SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
sparse warnings: (new ones prefixed by >>)
> arch/parisc/math-emu/driver.c:88:17: sparse: sparse: Using plain
integer as NULL pointer
> arch/parisc/math-emu/driver.c:88:17: sparse: sparse: Using plain integer as NULL
pointer
> arch/parisc/math-emu/driver.c:88:17: sparse: sparse: Using plain integer as NULL
pointer
arch/parisc/math-emu/driver.c:90:17: sparse: sparse: Using plain integer
as NULL pointer
arch/parisc/math-emu/driver.c:90:17: sparse: sparse: Using plain integer as NULL
pointer
arch/parisc/math-emu/driver.c:90:17: sparse: sparse: Using plain integer as NULL
pointer
arch/parisc/math-emu/driver.c:93:22: sparse: sparse: undefined identifier
'decode_fpu'
vim +88 arch/parisc/math-emu/driver.c
^1da177e4c3f41 Linus Torvalds 2005-04-16 64
^1da177e4c3f41 Linus Torvalds 2005-04-16 65 /* Handle a floating point exception.
Return zero if the faulting
^1da177e4c3f41 Linus Torvalds 2005-04-16 66 instruction can be completed
successfully. */
^1da177e4c3f41 Linus Torvalds 2005-04-16 67 int
^1da177e4c3f41 Linus Torvalds 2005-04-16 68 handle_fpe(struct pt_regs *regs)
^1da177e4c3f41 Linus Torvalds 2005-04-16 69 {
^1da177e4c3f41 Linus Torvalds 2005-04-16 70 extern void printbinary(unsigned long x,
int nbits);
^1da177e4c3f41 Linus Torvalds 2005-04-16 71 unsigned int orig_sw, sw;
^1da177e4c3f41 Linus Torvalds 2005-04-16 72 int signalcode;
^1da177e4c3f41 Linus Torvalds 2005-04-16 73 /* need an intermediate copy of float regs
because FPU emulation
^1da177e4c3f41 Linus Torvalds 2005-04-16 74 * code expects an artificial last entry
which contains zero
^1da177e4c3f41 Linus Torvalds 2005-04-16 75 *
^1da177e4c3f41 Linus Torvalds 2005-04-16 76 * also, the passed in fr registers contain
one word that defines
^1da177e4c3f41 Linus Torvalds 2005-04-16 77 * the fpu type. the fpu type information
is constructed
^1da177e4c3f41 Linus Torvalds 2005-04-16 78 * inside the emulation code
^1da177e4c3f41 Linus Torvalds 2005-04-16 79 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 80 __u64 frcopy[36];
^1da177e4c3f41 Linus Torvalds 2005-04-16 81
^1da177e4c3f41 Linus Torvalds 2005-04-16 82 memcpy(frcopy, regs->fr, sizeof
regs->fr);
^1da177e4c3f41 Linus Torvalds 2005-04-16 83 frcopy[32] = 0;
^1da177e4c3f41 Linus Torvalds 2005-04-16 84
^1da177e4c3f41 Linus Torvalds 2005-04-16 85 memcpy(&orig_sw, frcopy,
sizeof(orig_sw));
^1da177e4c3f41 Linus Torvalds 2005-04-16 86
^1da177e4c3f41 Linus Torvalds 2005-04-16 87 if (FPUDEBUG) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 @88 printk(KERN_DEBUG "FP
VZOUICxxxxCQCQCQCQCQCRMxxTDVZOUI ->\n ");
:::::: The code at line 88 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2
:::::: TO: Linus Torvalds <torvalds(a)ppc970.osdl.org>
:::::: CC: Linus Torvalds <torvalds(a)ppc970.osdl.org>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org