From 703f791d3538472600571ecde01627df6b47e6d6 Mon Sep 17 00:00:00 2001
From: Tomohiro Kusumi <kusumi.tomohiro@gmail.com>
Date: Mon, 8 Apr 2019 02:18:01 +0900
Subject: [PATCH] Don't hard-code number of ioctls for portability

Use (ZFS_IOC_LAST - ZFS_IOC_FIRST) instead of 256.
It seems 256 is just a number large enough to hold ioctls
at the moment.

Using 256 also causes compile-time warning or error
on platfoms whose enum zfs_ioc definition differs.

Reviewed-by: Olaf Faaland <faaland1@llnl.gov>
Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Igor Kozhukhov <igor@dilos.org>
Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@gmail.com>
Closes #8598
---
 tests/zfs-tests/cmd/libzfs_input_check/libzfs_input_check.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/zfs-tests/cmd/libzfs_input_check/libzfs_input_check.c b/tests/zfs-tests/cmd/libzfs_input_check/libzfs_input_check.c
index 8855a5358e..977b9e2f3d 100644
--- a/tests/zfs-tests/cmd/libzfs_input_check/libzfs_input_check.c
+++ b/tests/zfs-tests/cmd/libzfs_input_check/libzfs_input_check.c
@@ -37,7 +37,7 @@ const char *active_test;
 /*
  * Tracks which zfs_ioc_t commands were tested
  */
-boolean_t ioc_tested[256];
+boolean_t ioc_tested[ZFS_IOC_LAST - ZFS_IOC_FIRST];
 
 /*
  * Legacy ioctls that are skipped (for now)