linux-kernel - [PATCH 1/2] ALSA: hda: hda_component: Add missing #include guards

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Message-ID: <20240307111216.45053-1-rf@opensource.cirrus.com>
Date: Thu, 7 Mar 2024 11:12:15 +0000
From: Richard Fitzgerald <rf@...nsource.cirrus.com>
To: <tiwai@...e.com>
CC: <linux-sound@...r.kernel.org>, <alsa-devel@...a-project.org>,
        <linux-kernel@...r.kernel.org>, <patches@...nsource.cirrus.com>,
        "Richard
 Fitzgerald" <rf@...nsource.cirrus.com>
Subject: [PATCH 1/2] ALSA: hda: hda_component: Add missing #include guards

Add the conventional include guards around the content of the
hda_component.h header file. This prevents double-declaration of
struct hda_component if the header gets included multiple times.

This isn't causing any problems with current code, so no need to
backport to older kernels.

Signed-off-by: Richard Fitzgerald <rf@...nsource.cirrus.com>
---
 sound/pci/hda/hda_component.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sound/pci/hda/hda_component.h b/sound/pci/hda/hda_component.h
index deae9dea01b4..a0fcc723483d 100644
--- a/sound/pci/hda/hda_component.h
+++ b/sound/pci/hda/hda_component.h
@@ -6,6 +6,9 @@
  *                    Cirrus Logic International Semiconductor Ltd.
  */
 
+#ifndef __HDA_COMPONENT_H__
+#define __HDA_COMPONENT_H__
+
 #include <linux/acpi.h>
 #include <linux/component.h>
 
@@ -82,3 +85,5 @@ static inline void hda_component_manager_unbind(struct hda_codec *cdc,
 {
 	component_unbind_all(hda_codec_dev(cdc), comps);
 }
+
+#endif /* ifndef __HDA_COMPONENT_H__ */
-- 
2.30.2