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um: Remove unused functions

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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>
This commit is contained in:
Tiwei Bie 2024-03-06 18:19:19 +08:00 committed by Richard Weinberger
parent 0c2b208c8b
commit b5e0950fd6
2 changed files with 0 additions and 27 deletions
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21
arch/um/kernel/process.c
View File

@ -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;

6
arch/um/kernel/tlb.c
View File

@ -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;