From: Jens Axboe <axboe@kernel.dk>
Date: Mon, 19 Mar 2018 21:56:20 +0000 (-0600)
Subject: optgroup: add check for optgroup bit numbers being within range
X-Git-Tag: fio-3.6~36
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=96344ff00349422172de6fa57899c66dc3c00391

optgroup: add check for optgroup bit numbers being within range

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/optgroup.c b/optgroup.c
index 122d24e9..1c418f5a 100644
--- a/optgroup.c
+++ b/optgroup.c
@@ -1,6 +1,7 @@
 #include <stdio.h>
 #include <inttypes.h>
 #include "optgroup.h"
+#include "compiler/compiler.h"
 
 /*
  * Option grouping
@@ -203,3 +204,5 @@ const struct opt_group *opt_group_cat_from_mask(uint64_t *mask)
 {
 	return group_from_mask(fio_opt_cat_groups, mask, FIO_OPT_G_INVALID);
 }
+
+compiletime_assert(__FIO_OPT_G_NR <= 8 * sizeof(uint64_t), "__FIO_OPT_G_NR");