From: Tejun Heo Date: Fri, 23 Jan 2009 02:31:39 +0000 (+0900) Subject: ahci: drop intx manipulation on msi enable X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a5bfc4714b3f01365aef89a92673f2ceb1ccf246;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git ahci: drop intx manipulation on msi enable There's no need to turn off intx explicitly on msi enable. This is automatically handled by pci. Drop it. This might be needed on machines if the BIOS turns intx off during boot. However, there's no evidence of such behavior for ahci and the only such case seems to be ICH5 PATA according to ata_piix. Also, given the way ahci operates, it's highly unlikely BIOS ever disables IRQ for the controller. However, as this change has slight possibility of introducing failure, please schedule it for #upstream. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 66e012cd3271..98d7a9fbb7ed 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -2647,8 +2647,8 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (board_id == board_ahci_sb700 && pdev->revision >= 0x40) hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL; - if ((hpriv->flags & AHCI_HFLAG_NO_MSI) || pci_enable_msi(pdev)) - pci_intx(pdev, 1); + if (!(hpriv->flags & AHCI_HFLAG_NO_MSI)) + pci_enable_msi(pdev); /* save initial config */ ahci_save_initial_config(pdev, hpriv);