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SubjectRe: [PATCH -next] pci: hotplug: Use DEFINE_SPINLOCK() for spinlock
On Mon, Dec 28, 2020 at 09:50:38PM +0800, Zheng Yongjun wrote:
> spinlock can be initialized automatically with DEFINE_SPINLOCK()
> rather than explicitly calling spin_lock_init().

See this again:

https://lore.kernel.org/r/20171026223701.GA25649@bhelgaas-glaptop.roam.corp.google.com

> Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.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);
> }
>
>
> --
> 2.22.0
>

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