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-rw-r--r--lib/iov_iter.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/lib/iov_iter.c b/lib/iov_iter.c
index 75232ad0a..5fecddc32 100644
--- a/lib/iov_iter.c
+++ b/lib/iov_iter.c
@@ -369,7 +369,7 @@ static void memcpy_from_page(char *to, struct page *page, size_t offset, size_t
kunmap_atomic(from);
}
-static void memcpy_to_page(struct page *page, size_t offset, char *from, size_t len)
+static void memcpy_to_page(struct page *page, size_t offset, const char *from, size_t len)
{
char *to = kmap_atomic(page);
memcpy(to + offset, from, len);
@@ -383,9 +383,9 @@ static void memzero_page(struct page *page, size_t offset, size_t len)
kunmap_atomic(addr);
}
-size_t copy_to_iter(void *addr, size_t bytes, struct iov_iter *i)
+size_t copy_to_iter(const void *addr, size_t bytes, struct iov_iter *i)
{
- char *from = addr;
+ const char *from = addr;
if (unlikely(bytes > i->count))
bytes = i->count;
@@ -704,10 +704,10 @@ size_t csum_and_copy_from_iter(void *addr, size_t bytes, __wsum *csum,
}
EXPORT_SYMBOL(csum_and_copy_from_iter);
-size_t csum_and_copy_to_iter(void *addr, size_t bytes, __wsum *csum,
+size_t csum_and_copy_to_iter(const void *addr, size_t bytes, __wsum *csum,
struct iov_iter *i)
{
- char *from = addr;
+ const char *from = addr;
__wsum sum, next;
size_t off = 0;
if (unlikely(bytes > i->count))
@@ -849,3 +849,4 @@ int import_single_range(int rw, void __user *buf, size_t len,
iov_iter_init(i, rw, iov, 1, len);
return 0;
}
+EXPORT_SYMBOL(import_single_range);