linux-kernel - [PATCH 1/2] libnvdimm: add missing macros

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Message-ID: <20160708162911.18756-1-eric.engestrom@imgtec.com>
Date:	Fri, 8 Jul 2016 17:29:10 +0100
From:	Eric Engestrom <eric.engestrom@...tec.com>
To:	<linux-kernel@...r.kernel.org>
CC:	Eric Engestrom <eric@...estrom.ch>,
	Eric Engestrom <eric.engestrom@...tec.com>,
	Dan Williams <dan.j.williams@...el.com>,
	<linux-nvdimm@...ts.01.org>
Subject: [PATCH 1/2] libnvdimm: add missing macros

Signed-off-by: Eric Engestrom <eric.engestrom@...tec.com>
---

This can't compile without these macros… Is this header really used by anyone?
Should it be removed, to avoid bit-rot?

---
 include/uapi/linux/ndctl.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/uapi/linux/ndctl.h b/include/uapi/linux/ndctl.h
index 309915f..50ae5e7 100644
--- a/include/uapi/linux/ndctl.h
+++ b/include/uapi/linux/ndctl.h
@@ -15,6 +15,14 @@
 
 #include <linux/types.h>
 
+#ifdef __GNUC__
+#define __packed __attribute__((packed))
+#else
+#define __packed
+#endif
+
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof(arr)[0])
+
 struct nd_cmd_smart {
 	__u32 status;
 	__u8 data[128];
-- 
2.9.0