> Am 17.06.2017 um 02:07 schrieb kbuild test robot <fengguang.wu@intel.com>:
> 
> tree:   git://git.cmpxchg.org/linux-mmotm.git master
> head:   8c91e2a1ea04c0c1e29415c62f151e77de2291f8
> commit: ad8aa0a41610e2b5225067c38a9020f6def8a940 [230/317] lib/extable.c: use bsearch() library function in search_extable()
> config: sparc-defconfig (attached as .config)
> compiler: sparc-linux-gcc (GCC) 6.2.0
> reproduce:
>        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>        chmod +x ~/bin/make.cross
>        git checkout ad8aa0a41610e2b5225067c38a9020f6def8a940
>        # save the attached .config to linux build tree
>        make.cross ARCH=sparc 
> 
> All errors (new ones prefixed by >>):
> 
>>> arch/sparc/mm/extable.c:16:1: error: conflicting types for 'search_extable'
>    search_extable(const struct exception_table_entry *start,
>    ^~~~~~~~~~~~~~
>   In file included from arch/sparc/mm/extable.c:6:0:
>   include/linux/extable.h:11:1: note: previous declaration of 'search_extable' was here
>    search_extable(const struct exception_table_entry *first,
>    ^~~~~~~~~~~~~~

Oops, of course I only did test against x86_64...

But one question regarding the range entries:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/sparc/mm/extable.c#n60

Shouldn't the range search skip deleted entries? Or does something else ensure consistency?

I'll check all other archs for arch-specific implementation and send v3 then.

Sorry for the fuss and kind regards
Thomas 

> 
> vim +/search_extable +16 arch/sparc/mm/extable.c
> 
> ^1da177e Linus Torvalds 2005-04-16  10            struct exception_table_entry *finish)
> ^1da177e Linus Torvalds 2005-04-16  11  {
> ^1da177e Linus Torvalds 2005-04-16  12  }
> ^1da177e Linus Torvalds 2005-04-16  13  
> ^1da177e Linus Torvalds 2005-04-16  14  /* Caller knows they are in a range if ret->fixup == 0 */
> ^1da177e Linus Torvalds 2005-04-16  15  const struct exception_table_entry *
> ^1da177e Linus Torvalds 2005-04-16 @16  search_extable(const struct exception_table_entry *start,
> ^1da177e Linus Torvalds 2005-04-16  17             const struct exception_table_entry *last,
> ^1da177e Linus Torvalds 2005-04-16  18             unsigned long value)
> ^1da177e Linus Torvalds 2005-04-16  19  {
> 
> :::::: The code at line 16 was first introduced by commit
> :::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2
> 
> :::::: TO: Linus Torvalds <torvalds@ppc970.osdl.org>
> :::::: CC: Linus Torvalds <torvalds@ppc970.osdl.org>
> 
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
> <.config.gz>