linux-kernel - [PATCH v6 1/3] PNP: Add dev_is

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Message-Id: <f8f216c4a36d2266b4fbf48f95793c44f13fb506.1712646750.git.albanhuang@tencent.com>
Date: Tue,  9 Apr 2024 15:43:41 +0800
From: Guanbing Huang <albanhuang0@...il.com>
To: gregkh@...uxfoundation.org,
	andriy.shevchenko@...el.com,
	rafael.j.wysocki@...el.com
Cc: linux-acpi@...r.kernel.org,
	tony@...mide.com,
	john.ogness@...utronix.de,
	yangyicong@...ilicon.com,
	jirislaby@...nel.org,
	linux-kernel@...r.kernel.org,
	linux-serial@...r.kernel.org,
	lvjianmin@...ngson.cn,
	albanhuang@...cent.com,
	tombinfan@...cent.com
Subject: [PATCH v6 1/3] PNP: Add dev_is_pnp() macro

From: Guanbing Huang <albanhuang@...cent.com>

Add dev_is_pnp() macro to determine whether the device is a PNP device.

Signed-off-by: Guanbing Huang <albanhuang@...cent.com>
Suggested-by: Andy Shevchenko <andriy.shevchenko@...el.com>
Reviewed-by: Bing Fan <tombinfan@...cent.com>
Tested-by: Linheng Du <dylanlhdu@...cent.com>
---
v5 -> v6: fix the issue that the cover letter is not chained with the patch series
v4 -> v5: change "pnp" in the commit message to uppercase

 include/linux/pnp.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/pnp.h b/include/linux/pnp.h
index ddbe7c3ca4ce..792921c06594 100644
--- a/include/linux/pnp.h
+++ b/include/linux/pnp.h
@@ -502,6 +502,8 @@ static inline void pnp_unregister_driver(struct pnp_driver *drv) { }
 
 #endif /* CONFIG_PNP */
 
+#define dev_is_pnp(d) ((d)->bus == &pnp_bus_type)
+
 /**
  * module_pnp_driver() - Helper macro for registering a PnP driver
  * @__pnp_driver: pnp_driver struct
-- 
2.17.1