tree 09f4b1b0db1513c75e46eeffd4369bd2f8021106
parent d3df4de7eb095cc4334759a5e65bf3bfb4be04f1
author Quentin Casasnovas <quentin.casasnovas@oracle.com> 1429155336 +0930
committer Rusty Russell <rusty@rustcorp.com.au> 1429689692 +0930

modpost: fix extable entry size calculation.

As Guenter pointed out, we were never really calculating the extable entry
size because the pointer arithmetic was simply wrong.  We want to check
we're handling the second relocation in __ex_table to infer an entry size,
but we were using (void*) pointers instead of Elf_Rel[a]* ones.

This fixes the problem by moving that check in the caller (since we can
deal with different types of relocations) and add is_second_extable_reloc()
to make the whole thing more readable.

Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Reported-by: Guenter Roeck <linux@roeck-us.net>
CC: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>