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authorkib <kib@FreeBSD.org>2015-06-05 08:36:25 +0000
committerkib <kib@FreeBSD.org>2015-06-05 08:36:25 +0000
commit8adebdc1fb2155471d30ae8e1658f04043f30091 (patch)
treeac0fd4ac26d5483f8db92a69e2f3069d09468c6a /sys/dev/pci
parent0a8cb339c3fc968720a3a61ef4613d05badcabb9 (diff)
downloadFreeBSD-src-8adebdc1fb2155471d30ae8e1658f04043f30091.zip
FreeBSD-src-8adebdc1fb2155471d30ae8e1658f04043f30091.tar.gz
MFC r283735:
Remove several write-only variables.
Diffstat (limited to 'sys/dev/pci')
-rw-r--r--sys/dev/pci/pci.c14
1 files changed, 5 insertions, 9 deletions
diff --git a/sys/dev/pci/pci.c b/sys/dev/pci/pci.c
index c0cf1cf..ebde142 100644
--- a/sys/dev/pci/pci.c
+++ b/sys/dev/pci/pci.c
@@ -2367,7 +2367,7 @@ pci_set_powerstate_method(device_t dev, device_t child, int state)
struct pci_devinfo *dinfo = device_get_ivars(child);
pcicfgregs *cfg = &dinfo->cfg;
uint16_t status;
- int result, oldstate, highest, delay;
+ int oldstate, highest, delay;
if (cfg->pp.pp_cap == 0)
return (EOPNOTSUPP);
@@ -2402,7 +2402,6 @@ pci_set_powerstate_method(device_t dev, device_t child, int state)
delay = 0;
status = PCI_READ_CONFIG(dev, child, cfg->pp.pp_status, 2)
& ~PCIM_PSTAT_DMASK;
- result = 0;
switch (state) {
case PCI_POWERSTATE_D0:
status |= PCIM_PSTAT_D0;
@@ -2962,7 +2961,6 @@ static void
pci_ata_maps(device_t bus, device_t dev, struct resource_list *rl, int force,
uint32_t prefetchmask)
{
- struct resource *r;
int rid, type, progif;
#if 0
/* if this device supports PCI native addressing use it */
@@ -2985,11 +2983,11 @@ pci_ata_maps(device_t bus, device_t dev, struct resource_list *rl, int force,
} else {
rid = PCIR_BAR(0);
resource_list_add(rl, type, rid, 0x1f0, 0x1f7, 8);
- r = resource_list_reserve(rl, bus, dev, type, &rid, 0x1f0,
+ (void)resource_list_reserve(rl, bus, dev, type, &rid, 0x1f0,
0x1f7, 8, 0);
rid = PCIR_BAR(1);
resource_list_add(rl, type, rid, 0x3f6, 0x3f6, 1);
- r = resource_list_reserve(rl, bus, dev, type, &rid, 0x3f6,
+ (void)resource_list_reserve(rl, bus, dev, type, &rid, 0x3f6,
0x3f6, 1, 0);
}
if (progif & PCIP_STORAGE_IDE_MODESEC) {
@@ -3000,11 +2998,11 @@ pci_ata_maps(device_t bus, device_t dev, struct resource_list *rl, int force,
} else {
rid = PCIR_BAR(2);
resource_list_add(rl, type, rid, 0x170, 0x177, 8);
- r = resource_list_reserve(rl, bus, dev, type, &rid, 0x170,
+ (void)resource_list_reserve(rl, bus, dev, type, &rid, 0x170,
0x177, 8, 0);
rid = PCIR_BAR(3);
resource_list_add(rl, type, rid, 0x376, 0x376, 1);
- r = resource_list_reserve(rl, bus, dev, type, &rid, 0x376,
+ (void)resource_list_reserve(rl, bus, dev, type, &rid, 0x376,
0x376, 1, 0);
}
pci_add_map(bus, dev, PCIR_BAR(4), rl, force,
@@ -3650,7 +3648,6 @@ pci_set_power_children(device_t dev, device_t *devlist, int numdevs,
int state)
{
device_t child, pcib;
- struct pci_devinfo *dinfo;
int dstate, i;
/*
@@ -3663,7 +3660,6 @@ pci_set_power_children(device_t dev, device_t *devlist, int numdevs,
pcib = device_get_parent(dev);
for (i = 0; i < numdevs; i++) {
child = devlist[i];
- dinfo = device_get_ivars(child);
dstate = state;
if (device_is_attached(child) &&
PCIB_POWER_FOR_SLEEP(pcib, dev, &dstate) == 0)
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