[LU-16785] if IS_ENCRYPTED is defined throws a warning

• Type: Bug
• Resolution: Fixed
• Priority: Trivial
• Fix Version/s: Lustre 2.16.0
• Assignee: Shaun Tancheff
• Reporter: Shaun Tancheff

Description

LB_CHECK_COMPILE([if IS_ENCRYPTED is defined],
is_encrypted, [
#include <linux/fs.h>
],[
IS_ENCRYPTED((struct inode *)0);
...
Throws a warning with -Wunused-value and can be seen in the config.log

include/linux/fs.h:2066:47: warning: statement with no effect [-Wunused-value]

Change this to explicitly ignore the value
(void)IS_ENCRYPTED((struct inode *)1);