linux-kernel - [PATCH -next] PCI: Use DEFINE

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Date:   Tue, 6 Apr 2021 20:06:37 +0800
From:   Huang Guobin <huangguobin4@...wei.com>
To:     <huangguobin4@...wei.com>, Bjorn Helgaas <bhelgaas@...gle.com>
CC:     <linux-pci@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH -next] PCI: Use DEFINE_SPINLOCK() for spinlock

From: Guobin Huang <huangguobin4@...wei.com>

spinlock can be initialized automatically with DEFINE_SPINLOCK()
rather than explicitly calling spin_lock_init().

Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Guobin Huang <huangguobin4@...wei.com>
---
 drivers/pci/hotplug/cpqphp_nvram.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/pci/hotplug/cpqphp_nvram.c b/drivers/pci/hotplug/cpqphp_nvram.c
index 00cd2b43364f..7a65d427ac11 100644
--- a/drivers/pci/hotplug/cpqphp_nvram.c
+++ b/drivers/pci/hotplug/cpqphp_nvram.c
@@ -80,7 +80,7 @@ static u8 evbuffer[1024];
 static void __iomem *compaq_int15_entry_point;
 
 /* lock for ordering int15_bios_call() */
-static spinlock_t int15_lock;
+static DEFINE_SPINLOCK(int15_lock);
 
 
 /* This is a series of function that deals with
@@ -415,9 +415,6 @@ void compaq_nvram_init(void __iomem *rom_start)
 		compaq_int15_entry_point = (rom_start + ROM_INT15_PHY_ADDR - ROM_PHY_ADDR);
 
 	dbg("int15 entry  = %p\n", compaq_int15_entry_point);
-
-	/* initialize our int15 lock */
-	spin_lock_init(&int15_lock);
 }