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Subjectarch/m68k/include/asm/mcfmmu.h:102:20: sparse: void static inline mmu_write( ... )
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 435faf5c218a47fd6258187f62d9bb1009717896
commit: 6863f5643dd717376c2fdc85a47a00f9d738a834 kbuild: allow Clang to find unused static inline functions for W=1 build
date: 9 months ago
config: m68k-randconfig-s031-20200605 (attached as .config)
compiler: m68k-linux-gcc (GCC) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.1-246-g41f651b4-dirty
git checkout 6863f5643dd717376c2fdc85a47a00f9d738a834
# save the attached .config to linux build tree
make W=1 C=1 ARCH=m68k CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

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 >>)

drivers/misc/habanalabs/debugfs.c:460:16: sparse: sparse: multiple definitions for function 'mmu_write'
arch/m68k/include/asm/mcfmmu.h:102:20: sparse: the previous one is here
drivers/misc/habanalabs/debugfs.c:460:16: sparse: sparse: symbol 'mmu_write' redeclared with different type (incompatible argument 1 (different base types)):
drivers/misc/habanalabs/debugfs.c:460:16: sparse: int static [signed] [toplevel] mmu_write( ... )
arch/m68k/include/asm/mcfmmu.h:102:20: sparse: note: previously declared as:
>> arch/m68k/include/asm/mcfmmu.h:102:20: sparse: void static inline [gnu_inline] [toplevel] mmu_write( ... )

vim +102 arch/m68k/include/asm/mcfmmu.h

8cee26f82a0c83 Greg Ungerer 2011-10-14 101
8cee26f82a0c83 Greg Ungerer 2011-10-14 @102 static inline void mmu_write(u32 a, u32 v)
8cee26f82a0c83 Greg Ungerer 2011-10-14 103 {
8cee26f82a0c83 Greg Ungerer 2011-10-14 104 *((volatile u32 *) a) = v;
8cee26f82a0c83 Greg Ungerer 2011-10-14 105 __asm__ __volatile__ ("nop");
8cee26f82a0c83 Greg Ungerer 2011-10-14 106 }
8cee26f82a0c83 Greg Ungerer 2011-10-14 107

:::::: The code at line 102 was first introduced by commit
:::::: 8cee26f82a0c830740db0267f828045cc39b90b9 m68k: definitions for the ColdFire V4e MMU hardware

:::::: TO: Greg Ungerer <gerg@uclinux.org>
:::::: CC: Greg Ungerer <gerg@uclinux.org>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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