3.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Randy Dunlap <rdun...@infradead.org>

commit d1603990ea626668c78527376d9ec084d634202d upstream.

Fix kconfig warning and build errors on x86_64 by selecting BINFMT_ELF
when COMPAT_BINFMT_ELF is being selected.

warning: (IA32_EMULATION) selects COMPAT_BINFMT_ELF which has unmet direct 
dependencies (COMPAT && BINFMT_ELF)

fs/built-in.o: In function `elf_core_dump':
compat_binfmt_elf.c:(.text+0x3e093): undefined reference to 
`elf_core_extra_phdrs'
compat_binfmt_elf.c:(.text+0x3ebcd): undefined reference to 
`elf_core_extra_data_size'
compat_binfmt_elf.c:(.text+0x3eddd): undefined reference to 
`elf_core_write_extra_phdrs'
compat_binfmt_elf.c:(.text+0x3f004): undefined reference to 
`elf_core_write_extra_data'

[ hpa: This was sent to me for -next but it is a low risk build fix ]

Signed-off-by: Randy Dunlap <rdun...@infradead.org>
Link: http://lkml.kernel.org/r/51c0b614.5000...@infradead.org
Signed-off-by: H. Peter Anvin <h...@linux.intel.com>
Signed-off-by: Ben Hutchings <b...@decadent.org.uk>
Cc: Rui Xiang <rui.xi...@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 arch/x86/Kconfig |    1 +
 1 file changed, 1 insertion(+)

--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2157,6 +2157,7 @@ source "fs/Kconfig.binfmt"
 config IA32_EMULATION
        bool "IA32 Emulation"
        depends on X86_64
+       select BINFMT_ELF
        select COMPAT_BINFMT_ELF
        ---help---
          Include code to run legacy 32-bit programs under a


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