1 files changed, 0 insertions, 208 deletions
diff --git a/libdde-linux26/libdde_linux26/contrib/mm/util.c b/libdde-linux26/libdde_linux26/contrib/mm/util.c
deleted file mode 100644
index 37eaccdf..00000000
--- a/libdde-linux26/libdde_linux26/contrib/mm/util.c
+++ /dev/null
@@ -1,208 +0,0 @@
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/module.h>
-#include <linux/err.h>
-#include <linux/sched.h>
-#include <asm/uaccess.h>
-
-/**
- * kstrdup - allocate space for and copy an existing string
- * @s: the string to duplicate
- * @gfp: the GFP mask used in the kmalloc() call when allocating memory
- */
-char *kstrdup(const char *s, gfp_t gfp)
-{
-	size_t len;
-	char *buf;
-
-	if (!s)
-		return NULL;
-
-	len = strlen(s) + 1;
-	buf = kmalloc_track_caller(len, gfp);
-	if (buf)
-		memcpy(buf, s, len);
-	return buf;
-}
-EXPORT_SYMBOL(kstrdup);
-
-/**
- * kstrndup - allocate space for and copy an existing string
- * @s: the string to duplicate
- * @max: read at most @max chars from @s
- * @gfp: the GFP mask used in the kmalloc() call when allocating memory
- */
-char *kstrndup(const char *s, size_t max, gfp_t gfp)
-{
-	size_t len;
-	char *buf;
-
-	if (!s)
-		return NULL;
-
-	len = strnlen(s, max);
-	buf = kmalloc_track_caller(len+1, gfp);
-	if (buf) {
-		memcpy(buf, s, len);
-		buf[len] = '\0';
-	}
-	return buf;
-}
-EXPORT_SYMBOL(kstrndup);
-
-/**
- * kmemdup - duplicate region of memory
- *
- * @src: memory region to duplicate
- * @len: memory region length
- * @gfp: GFP mask to use
- */
-void *kmemdup(const void *src, size_t len, gfp_t gfp)
-{
-	void *p;
-
-	p = kmalloc_track_caller(len, gfp);
-	if (p)
-		memcpy(p, src, len);
-	return p;
-}
-EXPORT_SYMBOL(kmemdup);
-
-/**
- * __krealloc - like krealloc() but don't free @p.
- * @p: object to reallocate memory for.
- * @new_size: how many bytes of memory are required.
- * @flags: the type of memory to allocate.
- *
- * This function is like krealloc() except it never frees the originally
- * allocated buffer. Use this if you don't want to free the buffer immediately
- * like, for example, with RCU.
- */
-void *__krealloc(const void *p, size_t new_size, gfp_t flags)
-{
-	void *ret;
-	size_t ks = 0;
-
-	if (unlikely(!new_size))
-		return ZERO_SIZE_PTR;
-
-	if (p)
-		ks = ksize(p);
-
-	if (ks >= new_size)
-		return (void *)p;
-
-	ret = kmalloc_track_caller(new_size, flags);
-	if (ret && p)
-		memcpy(ret, p, ks);
-
-	return ret;
-}
-EXPORT_SYMBOL(__krealloc);
-
-/**
- * krealloc - reallocate memory. The contents will remain unchanged.
- * @p: object to reallocate memory for.
- * @new_size: how many bytes of memory are required.
- * @flags: the type of memory to allocate.
- *
- * The contents of the object pointed to are preserved up to the
- * lesser of the new and old sizes.  If @p is %NULL, krealloc()
- * behaves exactly like kmalloc().  If @size is 0 and @p is not a
- * %NULL pointer, the object pointed to is freed.
- */
-void *krealloc(const void *p, size_t new_size, gfp_t flags)
-{
-	void *ret;
-
-	if (unlikely(!new_size)) {
-		kfree(p);
-		return ZERO_SIZE_PTR;
-	}
-
-	ret = __krealloc(p, new_size, flags);
-	if (ret && p != ret)
-		kfree(p);
-
-	return ret;
-}
-EXPORT_SYMBOL(krealloc);
-
-/**
- * kzfree - like kfree but zero memory
- * @p: object to free memory of
- *
- * The memory of the object @p points to is zeroed before freed.
- * If @p is %NULL, kzfree() does nothing.
- */
-void kzfree(const void *p)
-{
-	size_t ks;
-	void *mem = (void *)p;
-
-	if (unlikely(ZERO_OR_NULL_PTR(mem)))
-		return;
-	ks = ksize(mem);
-	memset(mem, 0, ks);
-	kfree(mem);
-}
-EXPORT_SYMBOL(kzfree);
-
-/*
- * strndup_user - duplicate an existing string from user space
- * @s: The string to duplicate
- * @n: Maximum number of bytes to copy, including the trailing NUL.
- */
-char *strndup_user(const char __user *s, long n)
-{
-	char *p;
-	long length;
-
-	length = strnlen_user(s, n);
-
-	if (!length)
-		return ERR_PTR(-EFAULT);
-
-	if (length > n)
-		return ERR_PTR(-EINVAL);
-
-	p = kmalloc(length, GFP_KERNEL);
-
-	if (!p)
-		return ERR_PTR(-ENOMEM);
-
-	if (copy_from_user(p, s, length)) {
-		kfree(p);
-		return ERR_PTR(-EFAULT);
-	}
-
-	p[length - 1] = '\0';
-
-	return p;
-}
-EXPORT_SYMBOL(strndup_user);
-
-#ifndef HAVE_ARCH_PICK_MMAP_LAYOUT
-void arch_pick_mmap_layout(struct mm_struct *mm)
-{
-	mm->mmap_base = TASK_UNMAPPED_BASE;
-	mm->get_unmapped_area = arch_get_unmapped_area;
-	mm->unmap_area = arch_unmap_area;
-}
-#endif
-
-int __attribute__((weak)) get_user_pages_fast(unsigned long start,
-				int nr_pages, int write, struct page **pages)
-{
-	struct mm_struct *mm = current->mm;
-	int ret;
-
-	down_read(&mm->mmap_sem);
-	ret = get_user_pages(current, mm, start, nr_pages,
-					write, 0, pages, NULL);
-	up_read(&mm->mmap_sem);
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(get_user_pages_fast);