um: Remove unused functions

These functions are not used anymore. Removing them will also address
below -Wmissing-prototypes warnings:

arch/um/kernel/process.c:51:5: warning: no previous prototype for ‘pid_to_processor_id’ [-Wmissing-prototypes]
arch/um/kernel/process.c:253:5: warning: no previous prototype for ‘copy_to_user_proc’ [-Wmissing-prototypes]
arch/um/kernel/process.c:263:5: warning: no previous prototype for ‘clear_user_proc’ [-Wmissing-prototypes]
arch/um/kernel/tlb.c:579:6: warning: no previous prototype for ‘flush_tlb_mm_range’ [-Wmissing-prototypes]

Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
Signed-off-by: Richard Weinberger <richard@nod.at>

diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index 20f3813143d87d731c0cd3e79cbfc0b1ccc93a40..292c8014aaa65b8fbca6ce7c48ab4ac454701d89 100644 (file)
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -48,17 +48,6 @@ static inline int external_pid(void)
        return userspace_pid[0];
 }
 
-int pid_to_processor_id(int pid)
-{
-       int i;
-
-       for (i = 0; i < ncpus; i++) {
-               if (cpu_tasks[i].pid == pid)
-                       return i;
-       }
-       return -1;
-}
-
 void free_stack(unsigned long stack, int order)
 {
        free_pages(stack, order);
@@ -250,21 +239,11 @@ char *uml_strdup(const char *string)
 }
 EXPORT_SYMBOL(uml_strdup);
 
-int copy_to_user_proc(void __user *to, void *from, int size)
-{
-       return copy_to_user(to, from, size);
-}
-
 int copy_from_user_proc(void *to, void __user *from, int size)
 {
        return copy_from_user(to, from, size);
 }
 
-int clear_user_proc(void __user *buf, int size)
-{
-       return clear_user(buf, size);
-}
-
 static atomic_t using_sysemu = ATOMIC_INIT(0);
 int sysemu_supported;
 

diff --git a/arch/um/kernel/tlb.c b/arch/um/kernel/tlb.c
index 7d050ab0f78afa0d6a5324fcd5111b28accb6269..70b5e47e97615f2b89ed1f2155ff74c9c8d1917b 100644 (file)
--- a/arch/um/kernel/tlb.c
+++ b/arch/um/kernel/tlb.c
@@ -576,12 +576,6 @@ void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
 }
 EXPORT_SYMBOL(flush_tlb_range);
 
-void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start,
-                       unsigned long end)
-{
-       fix_range(mm, start, end, 0);
-}
-
 void flush_tlb_mm(struct mm_struct *mm)
 {
        struct vm_area_struct *vma;