On Fri, 2012-03-02 at 20:39 +0530, santosh nayak wrote:
> From: Santosh Nayak <santoshprasadnayak@xxxxxxxxx>
>
> In 'ql_adapter_initialize'
> the first call for 'spin_unlock_irqrestore()' is with hw_flags = 0,
> which is as good as 'spin_unlock_irq()' (unconditional interrupt
> enabling). If this is intended, then for better performance
> 'spin_unlock_irqrestore()' can be replaced with 'spin_unlock_irq()'
> and 'spin_lock_irqsave()' can be replaced by 'spin_lock_irq()
Maybe you should make the same change in ql_adapter_up(), which is the
caller that acquires this spinlock (and certainly shouldn't be called in
IRQ context).
Ben.
> Signed-off-by: Santosh Nayak <santoshprasadnayak@xxxxxxxxx>
> ---
> drivers/net/ethernet/qlogic/qla3xxx.c | 5 ++---
> 1 files changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/ethernet/qlogic/qla3xxx.c b/drivers/net/ethernet/qlogic/qla3xxx.c
> index d49f6da..8da3e41 100644
> --- a/drivers/net/ethernet/qlogic/qla3xxx.c
> +++ b/drivers/net/ethernet/qlogic/qla3xxx.c
> @@ -3017,7 +3017,6 @@ static int ql_adapter_initialize(struct ql3_adapter *qdev)
> (void __iomem *)port_regs;
> u32 delay = 10;
> int status = 0;
> - unsigned long hw_flags = 0;
>
> if (ql_mii_setup(qdev))
> return -1;
> @@ -3228,9 +3227,9 @@ static int ql_adapter_initialize(struct ql3_adapter *qdev)
> value = ql_read_page0_reg(qdev, &port_regs->portStatus);
> if (value & PORT_STATUS_IC)
> break;
> - spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
> + spin_unlock_irq(&qdev->hw_lock);
> msleep(500);
> - spin_lock_irqsave(&qdev->hw_lock, hw_flags);
> + spin_lock_irq(&qdev->hw_lock);
> } while (--delay);
>
> if (delay == 0) {
--
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
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