diff mbox series

macintosh/windfarm_pid: Add header file macro definition

Message ID 20220707015949.3733-1-zeming@nfschina.com (mailing list archive)
State Accepted
Commit e3e528d29d13c01289f382a0d3ddb5312ac3dae3
Headers show
Series macintosh/windfarm_pid: Add header file macro definition | expand

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Commit Message

Li zeming July 7, 2022, 1:59 a.m. UTC
I think the header file could avoid redefinition errors.
 at compile time by adding macro definitions.

Signed-off-by: Li zeming <zeming@nfschina.com>
---
 drivers/macintosh/windfarm_pid.h | 4 ++++
 1 file changed, 4 insertions(+)

Comments

Michael Ellerman Nov. 30, 2022, 9:23 a.m. UTC | #1
On Thu, 7 Jul 2022 09:59:49 +0800, Li zeming wrote:
> I think the header file could avoid redefinition errors.
>  at compile time by adding macro definitions.
> 
> 

Applied to powerpc/next.

[1/1] macintosh/windfarm_pid: Add header file macro definition
      https://git.kernel.org/powerpc/c/e3e528d29d13c01289f382a0d3ddb5312ac3dae3

cheers
diff mbox series

Patch

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