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authorLinus Torvalds <torvalds@linux-foundation.org>2020-10-15 09:51:18 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-10-15 09:51:18 -0700
commitc6dbef7307629cce855aa6b482b60cbf7777ed88 (patch)
treed8d13630bd57090173ad9f0c5f8e3bfb392964c9 /drivers/net/usb/pegasus.c
parentade7afe3e606f9f6ff0e6deefce140157f75540b (diff)
parent93578a25d4e21603518daf27a5f9caa4bf79de68 (diff)
Merge tag 'usb-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/PHY/Thunderbolt driver updates from Greg KH: "Here is the big set of USB, PHY, and Thunderbolt driver updates for 5.10-rc1. Lots of tiny different things for these subsystems are in here, including: - phy driver updates - thunderbolt / USB 4 updates and additions - USB gadget driver updates - xhci fixes and updates - typec driver additions and updates - api conversions to various drivers for core kernel api changes - new USB control message functions to make it harder to get wrong, as found by syzbot (took 2 tries to get it right) - lots of tiny USB driver fixes and updates all over the place All of these have been in linux-next for a while, with the exception of the last "obviously correct" patch that updated a FALLTHROUGH comment that got merged last weekend" * tag 'usb-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (374 commits) usb: musb: gadget: Use fallthrough pseudo-keyword usb: typec: Add QCOM PMIC typec detection driver USB: serial: option: add Cellient MPL200 card usb: typec: tcpci_maxim: Add support for Sink FRS usb: typec: tcpci: Implement callbacks for FRS usb: typec: tcpm: Add support for Sink Fast Role SWAP(FRS) usb: typec: tcpci_maxim: Chip level TCPC driver usb: typec: tcpci: Add set_vbus tcpci callback usb: typec: tcpci: Add a getter method to retrieve tcpm_port reference usbip: vhci_hcd: fix calling usb_hcd_giveback_urb() with irqs enabled usb: cdc-acm: add quirk to blacklist ETAS ES58X devices USB: serial: ftdi_sio: use cur_altsetting for consistency USB: serial: option: Add Telit FT980-KS composition USB: core: remove polling for /sys/kernel/debug/usb/devices usb: typec: add support for STUSB160x Type-C controller family usb: typec: add typec_find_pwr_opmode usb: typec: hd3ss3220: Use OF graph API to get the connector fwnode dt-bindings: usb: renesas,usb3-peri: Document HS and SS data bus dt-bindings: usb: convert ti,hd3ss3220 bindings to json-schema usb: dwc2: Fix INTR OUT transfers in DDMA mode. ...
Diffstat (limited to 'drivers/net/usb/pegasus.c')
-rw-r--r--drivers/net/usb/pegasus.c61
1 files changed, 15 insertions, 46 deletions
diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
index 060a8a03e6c4..32e1335c94ad 100644
--- a/drivers/net/usb/pegasus.c
+++ b/drivers/net/usb/pegasus.c
@@ -124,62 +124,31 @@ static void async_ctrl_callback(struct urb *urb)
static int get_registers(pegasus_t *pegasus, __u16 indx, __u16 size, void *data)
{
- u8 *buf;
- int ret;
-
- buf = kmalloc(size, GFP_NOIO);
- if (!buf)
- return -ENOMEM;
-
- ret = usb_control_msg(pegasus->usb, usb_rcvctrlpipe(pegasus->usb, 0),
- PEGASUS_REQ_GET_REGS, PEGASUS_REQT_READ, 0,
- indx, buf, size, 1000);
- if (ret < 0)
- netif_dbg(pegasus, drv, pegasus->net,
- "%s returned %d\n", __func__, ret);
- else if (ret <= size)
- memcpy(data, buf, ret);
- kfree(buf);
- return ret;
+ return usb_control_msg_recv(pegasus->usb, 0, PEGASUS_REQ_GET_REGS,
+ PEGASUS_REQT_READ, 0, indx, data, size,
+ 1000, GFP_NOIO);
}
static int set_registers(pegasus_t *pegasus, __u16 indx, __u16 size,
const void *data)
{
- u8 *buf;
- int ret;
-
- buf = kmemdup(data, size, GFP_NOIO);
- if (!buf)
- return -ENOMEM;
-
- ret = usb_control_msg(pegasus->usb, usb_sndctrlpipe(pegasus->usb, 0),
- PEGASUS_REQ_SET_REGS, PEGASUS_REQT_WRITE, 0,
- indx, buf, size, 100);
- if (ret < 0)
- netif_dbg(pegasus, drv, pegasus->net,
- "%s returned %d\n", __func__, ret);
- kfree(buf);
- return ret;
+ return usb_control_msg_send(pegasus->usb, 0, PEGASUS_REQ_SET_REGS,
+ PEGASUS_REQT_WRITE, 0, indx, data, size,
+ 1000, GFP_NOIO);
}
+/*
+ * There is only one way to write to a single ADM8511 register and this is via
+ * specific control request. 'data' is ignored by the device, but it is here to
+ * not break the API.
+ */
static int set_register(pegasus_t *pegasus, __u16 indx, __u8 data)
{
- u8 *buf;
- int ret;
-
- buf = kmemdup(&data, 1, GFP_NOIO);
- if (!buf)
- return -ENOMEM;
+ void *buf = &data;
- ret = usb_control_msg(pegasus->usb, usb_sndctrlpipe(pegasus->usb, 0),
- PEGASUS_REQ_SET_REG, PEGASUS_REQT_WRITE, data,
- indx, buf, 1, 1000);
- if (ret < 0)
- netif_dbg(pegasus, drv, pegasus->net,
- "%s returned %d\n", __func__, ret);
- kfree(buf);
- return ret;
+ return usb_control_msg_send(pegasus->usb, 0, PEGASUS_REQ_SET_REG,
+ PEGASUS_REQT_WRITE, data, indx, buf, 1,
+ 1000, GFP_NOIO);
}
static int update_eth_regs_async(pegasus_t *pegasus)