From patchwork Thu Mar 29 13:27:36 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: UBUNTU: SAUCE: disable_nx should not be in __cpuinitdata section for X86_32 From: Tim Gardner X-Patchwork-Id: 149393 Message-Id: <1333027656-8665-1-git-send-email-tim.gardner@canonical.com> To: kernel-team@lists.ubuntu.com Date: Thu, 29 Mar 2012 07:27:36 -0600 BugLink: http://bugs.launchpad.net/bugs/968233 I noticed a section mismatch warning while building 3.2.0-20.33 for X86_32. AR arch/x86/lib/lib.a LD vmlinux.o MODPOST vmlinux.o WARNING: vmlinux.o(.text+0x187833): Section mismatch in reference from the function load_elf_binary() to the variable .cpuinit.data:disable_nx The function load_elf_binary() references the variable __cpuinitdata disable_nx. This is often because load_elf_binary lacks a __cpuinitdata annotation or the annotation of disable_nx is wrong. load_elf_binary() is definitely called after initialization. This code was added by 'UBUNTU: ubuntu: nx-emu - i386: NX emulation', so this is not an upstream problem. Reported-by: Tetsuo Handa Signed-off-by: Tim Gardner --- arch/x86/mm/setup_nx.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/arch/x86/mm/setup_nx.c b/arch/x86/mm/setup_nx.c index 90c9eff3..89fd946 100644 --- a/arch/x86/mm/setup_nx.c +++ b/arch/x86/mm/setup_nx.c @@ -6,7 +6,11 @@ #include #include +#ifdef CONFIG_X86_32 +int disable_nx; /* referenced by load_elf_binary() */ +#else int disable_nx __cpuinitdata; +#endif /* * noexec = on|off