linux-kernel - [PATCH 2/3] memblock tests: fix undefined reference to `panic'

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Message-Id: <20240402132701.29744-3-richard.weiyang@gmail.com>
Date: Tue,  2 Apr 2024 13:27:00 +0000
From: Wei Yang <richard.weiyang@...il.com>
To: akpm@...ux-foundation.org,
	rppt@...nel.org,
	rongtao@...tc.cn
Cc: linux-kernel@...r.kernel.org,
	linux-mm@...ck.org,
	Wei Yang <richard.weiyang@...il.com>,
	Song Shuai <songshuaishuai@...ylab.org>
Subject: [PATCH 2/3] memblock tests: fix undefined reference to `panic'

commit e96c6b8f212a ("memblock: report failures when memblock_can_resize
is not set") introduced the usage of panic, which is not defined in
memblock test.

Let's define it directly in panic.h to fix it.

Signed-off-by: Wei Yang <richard.weiyang@...il.com>
CC: Song Shuai <songshuaishuai@...ylab.org>
CC: Mike Rapoport <rppt@...nel.org>
---
 tools/include/linux/kernel.h |  1 +
 tools/include/linux/panic.h  | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+)
 create mode 100644 tools/include/linux/panic.h

diff --git a/tools/include/linux/kernel.h b/tools/include/linux/kernel.h
index 4b0673bf52c2..07cfad817d53 100644
--- a/tools/include/linux/kernel.h
+++ b/tools/include/linux/kernel.h
@@ -8,6 +8,7 @@
 #include <linux/build_bug.h>
 #include <linux/compiler.h>
 #include <linux/math.h>
+#include <linux/panic.h>
 #include <endian.h>
 #include <byteswap.h>
 
diff --git a/tools/include/linux/panic.h b/tools/include/linux/panic.h
new file mode 100644
index 000000000000..9c8f17a41ce8
--- /dev/null
+++ b/tools/include/linux/panic.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _TOOLS_LINUX_PANIC_H
+#define _TOOLS_LINUX_PANIC_H
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+static inline void panic(const char *fmt, ...)
+{
+	va_list argp;
+
+	va_start(argp, fmt);
+	vfprintf(stderr, fmt, argp);
+	va_end(argp);
+	exit(-1);
+}
+
+#endif
-- 
2.34.1