From 9950110cf0f79db91c0103876f3a58c9069243eb Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 6 Sep 2010 17:57:40 +0200 Subject: [PATCH] ata_piix: remove SIDPR locking Now that libata provides proper cross-port EH exclusion. The SIDPR locking added by commit 213373cf (ata_piix: fix locking around SIDPR access) is no longer necessary. Remove it. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/ata_piix.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index 1b40684111c0..2cfc1ae366ea 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c @@ -158,7 +158,6 @@ struct piix_map_db { struct piix_host_priv { const int *map; u32 saved_iocfg; - spinlock_t sidpr_lock; /* FIXME: remove once locking in EH is fixed */ void __iomem *sidpr; }; @@ -969,15 +968,12 @@ static int piix_sidpr_scr_read(struct ata_link *link, unsigned int reg, u32 *val) { struct piix_host_priv *hpriv = link->ap->host->private_data; - unsigned long flags; if (reg >= ARRAY_SIZE(piix_sidx_map)) return -EINVAL; - spin_lock_irqsave(&hpriv->sidpr_lock, flags); piix_sidpr_sel(link, reg); *val = ioread32(hpriv->sidpr + PIIX_SIDPR_DATA); - spin_unlock_irqrestore(&hpriv->sidpr_lock, flags); return 0; } @@ -985,15 +981,12 @@ static int piix_sidpr_scr_write(struct ata_link *link, unsigned int reg, u32 val) { struct piix_host_priv *hpriv = link->ap->host->private_data; - unsigned long flags; if (reg >= ARRAY_SIZE(piix_sidx_map)) return -EINVAL; - spin_lock_irqsave(&hpriv->sidpr_lock, flags); piix_sidpr_sel(link, reg); iowrite32(val, hpriv->sidpr + PIIX_SIDPR_DATA); - spin_unlock_irqrestore(&hpriv->sidpr_lock, flags); return 0; } @@ -1597,7 +1590,6 @@ static int __devinit piix_init_one(struct pci_dev *pdev, hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL); if (!hpriv) return -ENOMEM; - spin_lock_init(&hpriv->sidpr_lock); /* Save IOCFG, this will be used for cable detection, quirk * detection and restoration on detach. This is necessary -- 2.30.2