From: "Mike Rapoport (Microsoft)" <r...@kernel.org>
The execmem_update_copy() that used text poking was required when memory
allocated from ROX cache was always read-only. Since now its permissions
can be switched to read-write there is no need in a function that updates
memory with text poking.
Remove it.
Signed-off-by: Mike Rapoport (Microsoft) <r...@kernel.org>
---
include/linux/execmem.h | 13 -------------
mm/execmem.c | 5 -----
2 files changed, 18 deletions(-)
diff --git a/include/linux/execmem.h b/include/linux/execmem.h
index 3be35680a54f..734fbe83d98e 100644
--- a/include/linux/execmem.h
+++ b/include/linux/execmem.h
@@ -185,19 +185,6 @@ DEFINE_FREE(execmem, void *, if (_T) execmem_free(_T));
struct vm_struct *execmem_vmap(size_t size);
#endif
-/**
- * execmem_update_copy - copy an update to executable memory
- * @dst: destination address to update
- * @src: source address containing the data
- * @size: how many bytes of memory shold be copied
- *
- * Copy @size bytes from @src to @dst using text poking if the memory at
- * @dst is read-only.
- *
- * Return: a pointer to @dst or NULL on error
- */
-void *execmem_update_copy(void *dst, const void *src, size_t size);
-
/**
* execmem_is_rox - check if execmem is read-only
* @type - the execmem type to check
diff --git a/mm/execmem.c b/mm/execmem.c
index 2b683e7d864d..0712ebb4eb77 100644
--- a/mm/execmem.c
+++ b/mm/execmem.c
@@ -399,11 +399,6 @@ void execmem_free(void *ptr)
vfree(ptr);
}
-void *execmem_update_copy(void *dst, const void *src, size_t size)
-{
- return text_poke_copy(dst, src, size);
-}
-
bool execmem_is_rox(enum execmem_type type)
{
return !!(execmem_info->ranges[type].flags & EXECMEM_ROX_CACHE);
--
2.47.2
