+ um-fix-_fortify_source=2-support-for-kernel-modules.patch added to -mm tree

+ um-fix-_fortify_source=2-support-for-kernel-modules.patch added to -mm tree

[akpm]

The patch titled
     um: fix _FORTIFY_SOURCE=2 support for kernel modules
has been added to the -mm tree.  Its filename is
     um-fix-_fortify_source=2-support-for-kernel-modules.patch

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The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/

------------------------------------------------------
Subject: um: fix _FORTIFY_SOURCE=2 support for kernel modules
From: Richard Weinberger <richard@nod.at>

When UML is compiled with _FORTIFY_SOURCE we have to export all _chk()
functions which are used in modules.  For now it's only the case for
__sprintf_chk().

Tested-by: Florian Fainelli <florian@openwrt.org>
Reported-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/um/os-Linux/user_syms.c |    5 +++++
 1 file changed, 5 insertions(+)

diff -puN arch/um/os-Linux/user_syms.c~um-fix-_fortify_source=2-support-for-kernel-modules arch/um/os-Linux/user_syms.c
--- a/arch/um/os-Linux/user_syms.c~um-fix-_fortify_source=2-support-for-kernel-modules
+++ a/arch/um/os-Linux/user_syms.c
@@ -113,3 +113,8 @@ EXPORT_SYMBOL(__stack_smash_handler);
 
 extern long __guard __attribute__((weak));
 EXPORT_SYMBOL(__guard);
+
+#ifdef _FORTIFY_SOURCE
+extern int __sprintf_chk(char *str, int flag, size_t strlen, const char *format);
+EXPORT_SYMBOL(__sprintf_chk);
+#endif
_

Patches currently in -mm which might be from richard@nod.at are

linux-next.patch
um-clean-up-vm-flagsh.patch
um-exec-remove-redundant-set_fsuser_ds.patch
um-clean-up-delay-functions-v2.patch
um-fix-_fortify_source=2-support-for-kernel-modules.patch
um-add-netpoll-support.patch
um-reinstate-kernel-version-in-generated-config.patch
fs-execc-use-build_bug_on-for-vm_stack_flags-vm_stack_incomplete_setup.patch