From 27b2f6792f3b482e4636818c7efaf4c43fef32a3 Mon Sep 17 00:00:00 2001 From: Adam Kropelin Date: Fri, 16 Sep 2005 19:28:20 -0700 Subject: [PATCH] [PATCH] qla2xxx: Use dword accessors for PCI_ROM_ADDRESS PCI_ROM_ADDRESS is a 32 bit register and as such should be accessed using pci_bus_{read,write}_config_dword(). A recent audit of drivers/ turned up several cases of byte- and word-sized accesses. The harmful ones were fixed by Linus directly. This patches up one of the remaining harmless-but-still-wrong cases caught in the dragnet. Signed-off-by: Adam Kropelin Cc: Andrew Vasquez Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/scsi/qla2xxx/qla_init.c | 21 ++++++++++++--------- 1 file changed, 12 insertions(+), 9 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 3e9b641378..23d095d381 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -201,6 +201,7 @@ int qla2100_pci_config(scsi_qla_host_t *ha) { uint16_t w, mwi; + uint32_t d; unsigned long flags; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; @@ -215,9 +216,9 @@ qla2100_pci_config(scsi_qla_host_t *ha) pci_write_config_word(ha->pdev, PCI_COMMAND, w); /* Reset expansion ROM address decode enable */ - pci_read_config_word(ha->pdev, PCI_ROM_ADDRESS, &w); - w &= ~PCI_ROM_ADDRESS_ENABLE; - pci_write_config_word(ha->pdev, PCI_ROM_ADDRESS, w); + pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d); + d &= ~PCI_ROM_ADDRESS_ENABLE; + pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d); /* Get PCI bus information. */ spin_lock_irqsave(&ha->hardware_lock, flags); @@ -237,6 +238,7 @@ int qla2300_pci_config(scsi_qla_host_t *ha) { uint16_t w, mwi; + uint32_t d; unsigned long flags = 0; uint32_t cnt; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; @@ -302,9 +304,9 @@ qla2300_pci_config(scsi_qla_host_t *ha) pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80); /* Reset expansion ROM address decode enable */ - pci_read_config_word(ha->pdev, PCI_ROM_ADDRESS, &w); - w &= ~PCI_ROM_ADDRESS_ENABLE; - pci_write_config_word(ha->pdev, PCI_ROM_ADDRESS, w); + pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d); + d &= ~PCI_ROM_ADDRESS_ENABLE; + pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d); /* Get PCI bus information. */ spin_lock_irqsave(&ha->hardware_lock, flags); @@ -324,6 +326,7 @@ int qla24xx_pci_config(scsi_qla_host_t *ha) { uint16_t w, mwi; + uint32_t d; unsigned long flags = 0; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; int pcix_cmd_reg, pcie_dctl_reg; @@ -366,9 +369,9 @@ qla24xx_pci_config(scsi_qla_host_t *ha) } /* Reset expansion ROM address decode enable */ - pci_read_config_word(ha->pdev, PCI_ROM_ADDRESS, &w); - w &= ~PCI_ROM_ADDRESS_ENABLE; - pci_write_config_word(ha->pdev, PCI_ROM_ADDRESS, w); + pci_read_config_dword(ha->pdev, PCI_ROM_ADDRESS, &d); + d &= ~PCI_ROM_ADDRESS_ENABLE; + pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d); /* Get PCI bus information. */ spin_lock_irqsave(&ha->hardware_lock, flags); -- 2.39.5