LU-12275 sec: disable bio functions on client
    
diff --git a/libcfs/include/libcfs/crypto/llcrypt.h b/libcfs/include/libcfs/crypto/llcrypt.h
index b152915fb1..93e1766edc 100644
--- a/libcfs/include/libcfs/crypto/llcrypt.h
+++ b/libcfs/include/libcfs/crypto/llcrypt.h
@@ -267,12 +267,14 @@ static inline bool llcrypt_match_name(const struct llcrypt_name *fname,
 	return !memcmp(de_name, fname->disk_name.name, fname->disk_name.len);
 }
 
+#ifdef HAVE_SERVER_SUPPORT
 /* bio.c */
 extern void llcrypt_decrypt_bio(struct bio *);
 extern void llcrypt_enqueue_decrypt_bio(struct llcrypt_ctx *ctx,
 					struct bio *bio);
 extern int llcrypt_zeroout_range(const struct inode *, pgoff_t, sector_t,
 				 unsigned int);
+#endif
 
 /* hooks.c */
 extern int llcrypt_file_open(struct inode *inode, struct file *filp);
@@ -525,6 +527,7 @@ static inline bool llcrypt_match_name(const struct llcrypt_name *fname,
 	return !memcmp(de_name, fname->disk_name.name, fname->disk_name.len);
 }
 
+#ifdef HAVE_SERVER_SUPPORT
 /* bio.c */
 static inline void llcrypt_decrypt_bio(struct bio *bio)
 {
@@ -540,6 +543,7 @@ static inline int llcrypt_zeroout_range(const struct inode *inode, pgoff_t lblk,
 {
 	return -EOPNOTSUPP;
 }
+#endif
 
 /* hooks.c */
 
diff --git a/libcfs/libcfs/crypto/bio.c b/libcfs/libcfs/crypto/bio.c
index 78b56cbd36..02ecacff5e 100644
--- a/libcfs/libcfs/crypto/bio.c
+++ b/libcfs/libcfs/crypto/bio.c
@@ -24,6 +24,7 @@
  * tags/v5.4
  */
 
+#ifdef HAVE_SERVER_SUPPORT
 #include <linux/pagemap.h>
 #include <linux/module.h>
 #include <linux/bio.h>
@@ -126,3 +127,4 @@ errout:
 	return err;
 }
 EXPORT_SYMBOL(llcrypt_zeroout_range);
+#endif