[PATCH 9/9] um: Remove unused user_context function

[Tiwei Bie]

It's no longer used since commit 6aa802ce6acc ("uml: throw out
CHOOSE_MODE").

Signed-off-by: Tiwei Bie <tiwei.btw at antgroup.com>
---
 arch/um/kernel/process.c           | 8 --------
 arch/x86/um/shared/sysdep/ptrace.h | 2 --
 2 files changed, 10 deletions(-)

diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index 30bdc0a87dc8..e5a2d4d897e0 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -213,14 +213,6 @@ int __uml_cant_sleep(void) {
 	/* Is in_interrupt() really needed? */
 }
 
-int user_context(unsigned long sp)
-{
-	unsigned long stack;
-
-	stack = sp & (PAGE_MASK << CONFIG_KERNEL_STACK_ORDER);
-	return stack != (unsigned long) current_thread_info();
-}
-
 extern exitcall_t __uml_exitcall_begin, __uml_exitcall_end;
 
 void do_uml_exitcalls(void)
diff --git a/arch/x86/um/shared/sysdep/ptrace.h b/arch/x86/um/shared/sysdep/ptrace.h
index 2dd4ca6713f8..8f7476ff6e95 100644
--- a/arch/x86/um/shared/sysdep/ptrace.h
+++ b/arch/x86/um/shared/sysdep/ptrace.h
@@ -74,8 +74,6 @@ struct uml_pt_regs {
 #define UPT_FAULTINFO(r) (&(r)->faultinfo)
 #define UPT_IS_USER(r) ((r)->is_user)
 
-extern int user_context(unsigned long sp);
-
 extern int arch_init_registers(int pid);
 
 #endif /* __SYSDEP_X86_PTRACE_H */
-- 
2.34.1