4.4-stable review patch. If anyone has any objections, please let me know.
------------------ From: Rian Hunter <[email protected]> commit dc76803e57cc86589c4efcb5362918f9b0c0436f upstream. The consolidation of the start_thread() functions removed the export unintentionally. This breaks binfmt handlers built as a module. Add it back. Fixes: e634d8fc792c ("x86-64: merge the standard and compat start_thread() functions") Signed-off-by: Rian Hunter <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Vitaly Kuznetsov <[email protected]> Cc: Joerg Roedel <[email protected]> Cc: Dmitry Safonov <[email protected]> Cc: Josh Poimboeuf <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]> --- arch/x86/kernel/process_64.c | 1 + 1 file changed, 1 insertion(+) --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -250,6 +250,7 @@ start_thread(struct pt_regs *regs, unsig start_thread_common(regs, new_ip, new_sp, __USER_CS, __USER_DS, 0); } +EXPORT_SYMBOL_GPL(start_thread); #ifdef CONFIG_COMPAT void compat_start_thread(struct pt_regs *regs, u32 new_ip, u32 new_sp)

