x86/process: Re-export start_thread()

rianhunter · KAGA-KOKO · commit dc76803e57cc · 2018-08-20T18:04:42.000+02:00
The consolidation of the start_thread() functions removed the export unintentionally. This breaks binfmt handlers built as a module. Add it back. Fixes: e634d8f ("x86-64: merge the standard and compat start_thread() functions") Signed-off-by: Rian Hunter <rian@alum.mit.edu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bpetkov@suse.de> Cc: Vitaly Kuznetsov <vkuznets@redhat.com> Cc: Joerg Roedel <jroedel@suse.de> Cc: Dmitry Safonov <dima@arista.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20180819230854.7275-1-rian@alum.mit.edu
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
@@ -384,6 +384,7 @@ start_thread(struct pt_regs *regs, unsigned long new_ip, unsigned long new_sp)
 	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)

Original file line number	Diff line number	Diff line change
`@@ -384,6 +384,7 @@ start_thread(struct pt_regs *regs, unsigned long new_ip, unsigned long new_sp)`
`384`	`384`	`start_thread_common(regs, new_ip, new_sp,`
`385`	`385`	`__USER_CS, __USER_DS, 0);`
`386`	`386`	`}`
	`387`	`+EXPORT_SYMBOL_GPL(start_thread);`
`387`	`388`
`388`	`389`	`#ifdef CONFIG_COMPAT`
`389`	`390`	`void compat_start_thread(struct pt_regs *regs, u32 new_ip, u32 new_sp)`