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llan: Remove unused variables.

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In theory the errors during llan_attach should be handled, but other
errors in llan_attach (e.g. bus_setup_intr) are already ignored, so
just remove the unused variable to preserve the status quo.
This commit is contained in:
John Baldwin 2022-04-12 14:58:59 -07:00
parent 7e7f7b91d0
commit b2a8b342f3
1 changed files with 9 additions and 11 deletions
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20
sys/powerpc/pseries/phyp_llan.c
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@ -156,7 +156,7 @@ llan_attach(device_t dev)
{
struct llan_softc *sc;
phandle_t node;
int error, i;
int i;
ssize_t len;
sc = device_get_softc(dev);
@ -193,22 +193,22 @@ llan_attach(device_t dev)
INTR_ENTROPY, NULL, llan_intr, sc, &sc->irq_cookie);
/* Setup DMA */
error = bus_dma_tag_create(bus_get_dma_tag(dev), 16, 0,
bus_dma_tag_create(bus_get_dma_tag(dev), 16, 0,
BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL,
LLAN_RX_BUF_LEN, 1, BUS_SPACE_MAXSIZE_32BIT,
0, NULL, NULL, &sc->rx_dma_tag);
error = bus_dma_tag_create(bus_get_dma_tag(dev), 4, 0,
bus_dma_tag_create(bus_get_dma_tag(dev), 4, 0,
BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL,
BUS_SPACE_MAXSIZE, 1, BUS_SPACE_MAXSIZE_32BIT,
0, NULL, NULL, &sc->rxbuf_dma_tag);
error = bus_dma_tag_create(bus_get_dma_tag(dev), 1, 0,
bus_dma_tag_create(bus_get_dma_tag(dev), 1, 0,
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
BUS_SPACE_MAXSIZE, 6, BUS_SPACE_MAXSIZE_32BIT, 0,
busdma_lock_mutex, &sc->io_lock, &sc->tx_dma_tag);
error = bus_dmamem_alloc(sc->rx_dma_tag, (void **)&sc->rx_buf,
bus_dmamem_alloc(sc->rx_dma_tag, (void **)&sc->rx_buf,
BUS_DMA_WAITOK | BUS_DMA_ZERO, &sc->rx_buf_map);
error = bus_dmamap_load(sc->rx_dma_tag, sc->rx_buf_map, sc->rx_buf,
bus_dmamap_load(sc->rx_dma_tag, sc->rx_buf_map, sc->rx_buf,
LLAN_RX_BUF_LEN, llan_rx_load_cb, sc, 0);
/* TX DMA maps */
@ -216,7 +216,7 @@ llan_attach(device_t dev)
/* RX DMA */
for (i = 0; i < LLAN_MAX_RX_PACKETS; i++) {
error = bus_dmamap_create(sc->rxbuf_dma_tag, 0,
bus_dmamap_create(sc->rxbuf_dma_tag, 0,
&sc->rx_xfer[i].rx_dmamap);
sc->rx_xfer[i].rx_mbuf = NULL;
}
@ -291,7 +291,7 @@ llan_init(void *xsc)
struct llan_softc *sc = xsc;
uint64_t rx_buf_desc;
uint64_t macaddr;
int err, i;
int i;
mtx_lock(&sc->io_lock);
@ -305,7 +305,7 @@ llan_init(void *xsc)
rx_buf_desc |= (sc->rx_buf_len << 32);
rx_buf_desc |= sc->rx_buf_phys;
memcpy(&macaddr, sc->mac_address, 8);
err = phyp_hcall(H_REGISTER_LOGICAL_LAN, sc->unit, sc->input_buf_phys,
phyp_hcall(H_REGISTER_LOGICAL_LAN, sc->unit, sc->input_buf_phys,
rx_buf_desc, sc->filter_buf_phys, macaddr);
for (i = 0; i < LLAN_MAX_RX_PACKETS; i++)
@ -462,12 +462,10 @@ static void
llan_start_locked(struct ifnet *ifp)
{
struct llan_softc *sc = ifp->if_softc;
bus_addr_t first;
int nsegs;
struct mbuf *mb_head, *m;
mtx_assert(&sc->io_lock, MA_OWNED);
first = 0;
if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) !=
IFF_DRV_RUNNING)