diff options
| author | Jakub Kicinski | 2021-07-31 09:14:46 -0700 |
|---|---|---|
| committer | Jakub Kicinski | 2021-07-31 09:14:46 -0700 |
| commit | d2e11fd2b7fcd10b7bcef418c55490c934aa94e8 (patch) | |
| tree | bdce7769cd4d69b375aad004e844d1a413863485 /drivers/net/can/usb/ems_usb.c | |
| parent | aae950b189413ed3201354600d44223da0bcf63c (diff) | |
| parent | c7d102232649226a69dddd58a4942cf13cff4f7c (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Conflicting commits, all resolutions pretty trivial:
drivers/bus/mhi/pci_generic.c
5c2c85315948 ("bus: mhi: pci-generic: configurable network interface MRU")
56f6f4c4eb2a ("bus: mhi: pci_generic: Apply no-op for wake using sideband wake boolean")
drivers/nfc/s3fwrn5/firmware.c
a0302ff5906a ("nfc: s3fwrn5: remove unnecessary label")
46573e3ab08f ("nfc: s3fwrn5: fix undefined parameter values in dev_err()")
801e541c79bb ("nfc: s3fwrn5: fix undefined parameter values in dev_err()")
MAINTAINERS
7d901a1e878a ("net: phy: add Maxlinear GPY115/21x/24x driver")
8a7b46fa7902 ("MAINTAINERS: add Yasushi SHOJI as reviewer for the Microchip CAN BUS Analyzer Tool driver")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/can/usb/ems_usb.c')
| -rw-r--r-- | drivers/net/can/usb/ems_usb.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c index 0a37af4a3fa4..2b5302e72435 100644 --- a/drivers/net/can/usb/ems_usb.c +++ b/drivers/net/can/usb/ems_usb.c @@ -255,6 +255,8 @@ struct ems_usb { unsigned int free_slots; /* remember number of available slots */ struct ems_cpc_msg active_params; /* active controller parameters */ + void *rxbuf[MAX_RX_URBS]; + dma_addr_t rxbuf_dma[MAX_RX_URBS]; }; static void ems_usb_read_interrupt_callback(struct urb *urb) @@ -587,6 +589,7 @@ static int ems_usb_start(struct ems_usb *dev) for (i = 0; i < MAX_RX_URBS; i++) { struct urb *urb = NULL; u8 *buf = NULL; + dma_addr_t buf_dma; /* create a URB, and a buffer for it */ urb = usb_alloc_urb(0, GFP_KERNEL); @@ -596,7 +599,7 @@ static int ems_usb_start(struct ems_usb *dev) } buf = usb_alloc_coherent(dev->udev, RX_BUFFER_SIZE, GFP_KERNEL, - &urb->transfer_dma); + &buf_dma); if (!buf) { netdev_err(netdev, "No memory left for USB buffer\n"); usb_free_urb(urb); @@ -604,6 +607,8 @@ static int ems_usb_start(struct ems_usb *dev) break; } + urb->transfer_dma = buf_dma; + usb_fill_bulk_urb(urb, dev->udev, usb_rcvbulkpipe(dev->udev, 2), buf, RX_BUFFER_SIZE, ems_usb_read_bulk_callback, dev); @@ -619,6 +624,9 @@ static int ems_usb_start(struct ems_usb *dev) break; } + dev->rxbuf[i] = buf; + dev->rxbuf_dma[i] = buf_dma; + /* Drop reference, USB core will take care of freeing it */ usb_free_urb(urb); } @@ -684,6 +692,10 @@ static void unlink_all_urbs(struct ems_usb *dev) usb_kill_anchored_urbs(&dev->rx_submitted); + for (i = 0; i < MAX_RX_URBS; ++i) + usb_free_coherent(dev->udev, RX_BUFFER_SIZE, + dev->rxbuf[i], dev->rxbuf_dma[i]); + usb_kill_anchored_urbs(&dev->tx_submitted); atomic_set(&dev->active_tx_urbs, 0); |