[RFC 07/10] arm: allow passing an ELF64 header to elf_check_arch()

[Jamie Lokier]

Mika Westerberg wrote:
> This is needed to shut following compiler warning when CONFIG_PROC_VMCORE is
> enabled:
> 
> fs/proc/vmcore.c: In function 'parse_crash_elf64_headers':
> fs/proc/vmcore.c:500: warning: passing argument 1 of 'elf_check_arch' from
> incompatible pointer type
> 
> ELF32 and ELF64 headers have common fields of same size (namely e_ident and
> e_machine) which are checked in arm_elf_check_arch().

Wouldn't it be better to just disable the elf64 code entirely on
32-bit archs, saving about half of the code size in vmcore.c which
looks like it will never be called?

-- Jamie