diff options
| author | Johan Hovold <johan@kernel.org> | 2020-02-03 18:38:30 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-02-10 22:14:22 +0300 |
| commit | 7f1b92a6a7f2b96a8647a488370b9a851433df77 (patch) | |
| tree | 7f4560bbc47fe20e5d95af97f81a6daf95dae751 /drivers/usb | |
| parent | bdd1b147b8026df0e4260b387026b251d888ed01 (diff) | |
| download | linux-7f1b92a6a7f2b96a8647a488370b9a851433df77.tar.xz | |
USB: core: clean up endpoint-descriptor parsing
Use the new usb-device pointer instead of back-casting when accessing
the struct usb_device when parsing endpoints.
Note that this introduces two lines that are longer than 80 chars on
purpose.
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20200203153830.26394-4-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/core/config.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c index 7df22bcefa9d..b7918f695434 100644 --- a/drivers/usb/core/config.c +++ b/drivers/usb/core/config.c @@ -322,7 +322,7 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, j = 255; if (usb_endpoint_xfer_int(d)) { i = 1; - switch (to_usb_device(ddev)->speed) { + switch (udev->speed) { case USB_SPEED_SUPER_PLUS: case USB_SPEED_SUPER: case USB_SPEED_HIGH: @@ -343,8 +343,7 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, /* * This quirk fixes bIntervals reported in ms. */ - if (to_usb_device(ddev)->quirks & - USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL) { + if (udev->quirks & USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL) { n = clamp(fls(d->bInterval) + 3, i, j); i = j = n; } @@ -352,8 +351,7 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, * This quirk fixes bIntervals reported in * linear microframes. */ - if (to_usb_device(ddev)->quirks & - USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL) { + if (udev->quirks & USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL) { n = clamp(fls(d->bInterval), i, j); i = j = n; } @@ -370,7 +368,7 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, } else if (usb_endpoint_xfer_isoc(d)) { i = 1; j = 16; - switch (to_usb_device(ddev)->speed) { + switch (udev->speed) { case USB_SPEED_HIGH: n = 7; /* 8 ms = 2^(7-1) uframes */ break; @@ -392,8 +390,7 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, * explicitly forbidden by the USB spec. In an attempt to make * them usable, we will try treating them as Interrupt endpoints. */ - if (to_usb_device(ddev)->speed == USB_SPEED_LOW && - usb_endpoint_xfer_bulk(d)) { + if (udev->speed == USB_SPEED_LOW && usb_endpoint_xfer_bulk(d)) { dev_warn(ddev, "config %d interface %d altsetting %d " "endpoint 0x%X is Bulk; changing to Interrupt\n", cfgno, inum, asnum, d->bEndpointAddress); @@ -417,7 +414,7 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, /* Find the highest legal maxpacket size for this endpoint */ i = 0; /* additional transactions per microframe */ - switch (to_usb_device(ddev)->speed) { + switch (udev->speed) { case USB_SPEED_LOW: maxpacket_maxes = low_speed_maxpacket_maxes; break; @@ -453,8 +450,7 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, * maxpacket sizes other than 512. High speed HCDs may not * be able to handle that particular bug, so let's warn... */ - if (to_usb_device(ddev)->speed == USB_SPEED_HIGH - && usb_endpoint_xfer_bulk(d)) { + if (udev->speed == USB_SPEED_HIGH && usb_endpoint_xfer_bulk(d)) { if (maxp != 512) dev_warn(ddev, "config %d interface %d altsetting %d " "bulk endpoint 0x%X has invalid maxpacket %d\n", @@ -463,7 +459,7 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, } /* Parse a possible SuperSpeed endpoint companion descriptor */ - if (to_usb_device(ddev)->speed >= USB_SPEED_SUPER) + if (udev->speed >= USB_SPEED_SUPER) usb_parse_ss_endpoint_companion(ddev, cfgno, inum, asnum, endpoint, buffer, size); |