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r8169: improve pci region handling 

The region to be used is always the first of type IORESOURCE_MEM.
We can implement this rule directly w/o having to specify which
region is the first one per configuration entry.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Heiner Kallweit 2018-04-17 23:34:22 +02:00 committed by David S. Miller
parent a4328ddb55
commit c8d48d9c5b
1 changed files with 5 additions and 11 deletions
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16
drivers/net/ethernet/realtek/r8169.c
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@ -7974,7 +7974,6 @@ static const struct net_device_ops rtl_netdev_ops = {
static const struct rtl_cfg_info {
void (*hw_start)(struct rtl8169_private *tp);
unsigned int region;
u16 event_slow;
unsigned int has_gmii:1;
const struct rtl_coalesce_info *coalesce_info;
@ -7982,7 +7981,6 @@ static const struct rtl_cfg_info {
} rtl_cfg_infos [] = {
[RTL_CFG_0] = {
.hw_start = rtl_hw_start_8169,
.region = 1,
.event_slow = SYSErr | LinkChg | RxOverflow | RxFIFOOver,
.has_gmii = 1,
.coalesce_info = rtl_coalesce_info_8169,
@ -7990,7 +7988,6 @@ static const struct rtl_cfg_info {
},
[RTL_CFG_1] = {
.hw_start = rtl_hw_start_8168,
.region = 2,
.event_slow = SYSErr | LinkChg | RxOverflow,
.has_gmii = 1,
.coalesce_info = rtl_coalesce_info_8168_8136,
@ -7998,7 +7995,6 @@ static const struct rtl_cfg_info {
},
[RTL_CFG_2] = {
.hw_start = rtl_hw_start_8101,
.region = 2,
.event_slow = SYSErr | LinkChg | RxOverflow | RxFIFOOver |
PCSTimeout,
.coalesce_info = rtl_coalesce_info_8168_8136,
@ -8098,11 +8094,10 @@ static void rtl_hw_initialize(struct rtl8169_private *tp)
static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{
const struct rtl_cfg_info *cfg = rtl_cfg_infos + ent->driver_data;
const unsigned int region = cfg->region;
struct rtl8169_private *tp;
struct mii_if_info *mii;
struct net_device *dev;
int chipset, i;
int chipset, region, i;
int rc;
if (netif_msg_drv(&debug)) {
@ -8144,11 +8139,10 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
if (pcim_set_mwi(pdev) < 0)
netif_info(tp, probe, dev, "Mem-Wr-Inval unavailable\n");
/* make sure PCI base addr 1 is MMIO */
if (!(pci_resource_flags(pdev, region) & IORESOURCE_MEM)) {
netif_err(tp, probe, dev,
"region #%d not an MMIO resource, aborting\n",
region);
/* use first MMIO region */
region = ffs(pci_select_bars(pdev, IORESOURCE_MEM)) - 1;
if (region < 0) {
netif_err(tp, probe, dev, "no MMIO resource found\n");
return -ENODEV;
}