[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>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/scsi/esas2r/esas2r_init.c b/drivers/scsi/esas2r/esas2r_init.c
index 6776931e25d4..78ce4d61a69b 100644
--- a/drivers/scsi/esas2r/esas2r_init.c
+++ b/drivers/scsi/esas2r/esas2r_init.c
@@ -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);