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-rw-r--r--lib/iov_iter.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/iov_iter.c b/lib/iov_iter.c
index ea36dc355da1..b396d328a764 100644
--- a/lib/iov_iter.c
+++ b/lib/iov_iter.c
@@ -1528,6 +1528,7 @@ EXPORT_SYMBOL(csum_and_copy_to_iter);
size_t hash_and_copy_to_iter(const void *addr, size_t bytes, void *hashp,
struct iov_iter *i)
{
+#ifdef CONFIG_CRYPTO
struct ahash_request *hash = hashp;
struct scatterlist sg;
size_t copied;
@@ -1537,6 +1538,9 @@ size_t hash_and_copy_to_iter(const void *addr, size_t bytes, void *hashp,
ahash_request_set_crypt(hash, &sg, NULL, copied);
crypto_ahash_update(hash);
return copied;
+#else
+ return 0;
+#endif
}
EXPORT_SYMBOL(hash_and_copy_to_iter);