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[SCSI] esas2r: use PCI define for Max_Read_Request_Size 

Replace a magic number with a PCI #define symbol.

[bhelgaas: add parenthesis]
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Rafał Miłecki 2015-01-26 18:06:24 +01:00 committed by Bjorn Helgaas
parent ff59887f2d
commit 88b71f9c81
1 changed files with 3 additions and 2 deletions
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5
drivers/scsi/esas2r/esas2r_init.c
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@ -813,12 +813,13 @@ static void esas2r_init_pci_cfg_space(struct esas2r_adapter *a)
pci_read_config_word(a->pcid, pcie_cap_reg + PCI_EXP_DEVCTL,
&devcontrol);
if ((devcontrol & PCI_EXP_DEVCTL_READRQ) > 0x2000) {
if ((devcontrol & PCI_EXP_DEVCTL_READRQ) >
PCI_EXP_DEVCTL_READRQ_512B) {
esas2r_log(ESAS2R_LOG_INFO,
"max read request size > 512B");
devcontrol &= ~PCI_EXP_DEVCTL_READRQ;
devcontrol |= 0x2000;
devcontrol |= PCI_EXP_DEVCTL_READRQ_512B;
pci_write_config_word(a->pcid,
pcie_cap_reg + PCI_EXP_DEVCTL,
devcontrol);