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authorBjorn Helgaas2013-04-17 18:08:44 -0600
committerBjorn Helgaas2013-04-18 11:07:46 -0600
commit99369065970e9ea7d1ca489341ed29d1a72ec0b5 (patch)
tree92c10c2010e30fa381f87f7743d87d3e65611958 /drivers/scsi/megaraid
parentf6161aa153581da4a3867a2d1a7caf4be19b6ec9 (diff)
[SCSI] megaraid_sas: Use correct #define for MSI-X capability
Previously we used PCI_MSI_FLAGS to locate a register in the MSI-X capability. This did work because the MSI and MSI-X flags happen to be at the same offsets, but was confusing. PCI_MSIX_FLAGS_ENABLE is already defined in include/uapi/linux/pci_regs.h, so no need to define it again. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Adam Radford <aradford@gmail.com>
Diffstat (limited to 'drivers/scsi/megaraid')
-rw-r--r--drivers/scsi/megaraid/megaraid_sas.h3
-rw-r--r--drivers/scsi/megaraid/megaraid_sas_base.c4
2 files changed, 2 insertions, 5 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index 408d2548a748..684cc343cf09 100644
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -1488,7 +1488,4 @@ struct megasas_mgmt_info {
int max_index;
};
-#define msi_control_reg(base) (base + PCI_MSI_FLAGS)
-#define PCI_MSIX_FLAGS_ENABLE (1 << 15)
-
#endif /*LSI_MEGARAID_SAS_H */
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 9d53540207ec..7c90d57b867e 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -3984,12 +3984,12 @@ static int megasas_probe_one(struct pci_dev *pdev,
if (reset_devices) {
pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
if (pos) {
- pci_read_config_word(pdev, msi_control_reg(pos),
+ pci_read_config_word(pdev, pos + PCI_MSIX_FLAGS,
&control);
if (control & PCI_MSIX_FLAGS_ENABLE) {
dev_info(&pdev->dev, "resetting MSI-X\n");
pci_write_config_word(pdev,
- msi_control_reg(pos),
+ pos + PCI_MSIX_FLAGS,
control &
~PCI_MSIX_FLAGS_ENABLE);
}