[PATCH] macintosh/windfarm_pid: Add header file macro definition
Li zeming
zeming at nfschina.com
Thu Jul 7 11:59:49 AEST 2022
I think the header file could avoid redefinition errors.
at compile time by adding macro definitions.
Signed-off-by: Li zeming <zeming at nfschina.com>
---
drivers/macintosh/windfarm_pid.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/macintosh/windfarm_pid.h b/drivers/macintosh/windfarm_pid.h
index 83f747dbeafc..9882e90a5071 100644
--- a/drivers/macintosh/windfarm_pid.h
+++ b/drivers/macintosh/windfarm_pid.h
@@ -1,4 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef _WINDFARM_PID_H
+#define _WINDFARM_PID_H
+
/*
* Windfarm PowerMac thermal control. Generic PID helpers
*
@@ -82,3 +85,4 @@ struct wf_cpu_pid_state {
extern void wf_cpu_pid_init(struct wf_cpu_pid_state *st,
struct wf_cpu_pid_param *param);
extern s32 wf_cpu_pid_run(struct wf_cpu_pid_state *st, s32 power, s32 temp);
+#endif
--
2.18.2
More information about the Linuxppc-dev
mailing list