summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--drivers/usb/core/config.c36
-rw-r--r--drivers/usb/host/xhci-mem.c2
-rw-r--r--include/linux/usb.h14
-rw-r--r--include/linux/usb/ch9.h4
4 files changed, 29 insertions, 27 deletions
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index 7103758bb486..24dfb33f90cb 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -69,30 +69,31 @@ static int find_next_descriptor(unsigned char *buffer, int size,
return buffer - buffer0;
}
-static int usb_parse_endpoint_companion(struct device *ddev, int cfgno,
+static int usb_parse_ss_endpoint_companion(struct device *ddev, int cfgno,
int inum, int asnum, struct usb_host_endpoint *ep,
int num_ep, unsigned char *buffer, int size)
{
unsigned char *buffer_start = buffer;
- struct usb_ep_comp_descriptor *desc;
+ struct usb_ss_ep_comp_descriptor *desc;
int retval;
int num_skipped;
int max_tx;
int i;
- /* Allocate space for the companion descriptor */
- ep->ep_comp = kzalloc(sizeof(struct usb_host_ep_comp), GFP_KERNEL);
- if (!ep->ep_comp)
+ /* Allocate space for the SS endpoint companion descriptor */
+ ep->ss_ep_comp = kzalloc(sizeof(struct usb_host_ss_ep_comp),
+ GFP_KERNEL);
+ if (!ep->ss_ep_comp)
return -ENOMEM;
- desc = (struct usb_ep_comp_descriptor *) buffer;
+ desc = (struct usb_ss_ep_comp_descriptor *) buffer;
if (desc->bDescriptorType != USB_DT_SS_ENDPOINT_COMP) {
dev_warn(ddev, "No SuperSpeed endpoint companion for config %d "
" interface %d altsetting %d ep %d: "
"using minimum values\n",
cfgno, inum, asnum, ep->desc.bEndpointAddress);
- ep->ep_comp->desc.bLength = USB_DT_EP_COMP_SIZE;
- ep->ep_comp->desc.bDescriptorType = USB_DT_SS_ENDPOINT_COMP;
- ep->ep_comp->desc.bMaxBurst = 0;
+ ep->ss_ep_comp->desc.bLength = USB_DT_SS_EP_COMP_SIZE;
+ ep->ss_ep_comp->desc.bDescriptorType = USB_DT_SS_ENDPOINT_COMP;
+ ep->ss_ep_comp->desc.bMaxBurst = 0;
/*
* Leave bmAttributes as zero, which will mean no streams for
* bulk, and isoc won't support multiple bursts of packets.
@@ -102,7 +103,7 @@ static int usb_parse_endpoint_companion(struct device *ddev, int cfgno,
*/
if (usb_endpoint_xfer_isoc(&ep->desc) ||
usb_endpoint_xfer_int(&ep->desc))
- ep->ep_comp->desc.wBytesPerInterval =
+ ep->ss_ep_comp->desc.wBytesPerInterval =
ep->desc.wMaxPacketSize;
/*
* The next descriptor is for an Endpoint or Interface,
@@ -112,16 +113,16 @@ static int usb_parse_endpoint_companion(struct device *ddev, int cfgno,
retval = 0;
goto valid;
}
- memcpy(&ep->ep_comp->desc, desc, USB_DT_EP_COMP_SIZE);
- desc = &ep->ep_comp->desc;
+ memcpy(&ep->ss_ep_comp->desc, desc, USB_DT_SS_EP_COMP_SIZE);
+ desc = &ep->ss_ep_comp->desc;
buffer += desc->bLength;
size -= desc->bLength;
/* Eat up the other descriptors we don't care about */
- ep->ep_comp->extra = buffer;
+ ep->ss_ep_comp->extra = buffer;
i = find_next_descriptor(buffer, size, USB_DT_ENDPOINT,
USB_DT_INTERFACE, &num_skipped);
- ep->ep_comp->extralen = i;
+ ep->ss_ep_comp->extralen = i;
buffer += i;
size -= i;
retval = buffer - buffer_start + i;
@@ -310,7 +311,7 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
cfgno, inum, asnum, d->bEndpointAddress,
maxp);
}
- /* Allocate room for and parse any endpoint companion descriptors */
+ /* Allocate room for and parse any SS endpoint companion descriptors */
if (to_usb_device(ddev)->speed == USB_SPEED_SUPER) {
endpoint->extra = buffer;
i = find_next_descriptor_more(buffer, size, USB_DT_SS_ENDPOINT_COMP,
@@ -320,8 +321,9 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum,
size -= i;
if (size > 0) {
- retval = usb_parse_endpoint_companion(ddev, cfgno, inum, asnum,
- endpoint, num_ep, buffer, size);
+ retval = usb_parse_ss_endpoint_companion(ddev, cfgno,
+ inum, asnum, endpoint, num_ep, buffer,
+ size);
if (retval >= 0) {
buffer += retval;
retval = buffer - buffer0;
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index f49f280cfd43..a7fbd6c10add 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -496,7 +496,7 @@ int xhci_endpoint_init(struct xhci_hcd *xhci,
max_packet = ep->desc.wMaxPacketSize;
ep_ctx->ep_info2 |= MAX_PACKET(max_packet);
/* dig out max burst from ep companion desc */
- max_packet = ep->ep_comp->desc.bMaxBurst;
+ max_packet = ep->ss_ep_comp->desc.bMaxBurst;
ep_ctx->ep_info2 |= MAX_BURST(max_packet);
break;
case USB_SPEED_HIGH:
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 0a1819a64974..7e6b5259ea35 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -47,15 +47,15 @@ struct ep_device;
/* For SS devices */
/**
- * struct usb_host_ep_comp - Valid for SuperSpeed devices only
+ * struct usb_host_ss_ep_comp - Valid for SuperSpeed devices only
* @desc: endpoint companion descriptor, wMaxPacketSize in native byteorder
* @extra: descriptors following this endpoint companion descriptor
* @extralen: how many bytes of "extra" are valid
*/
-struct usb_host_ep_comp {
- struct usb_ep_comp_descriptor desc;
- unsigned char *extra; /* Extra descriptors */
- int extralen;
+struct usb_host_ss_ep_comp {
+ struct usb_ss_ep_comp_descriptor desc;
+ unsigned char *extra; /* Extra descriptors */
+ int extralen;
};
/**
@@ -65,7 +65,7 @@ struct usb_host_ep_comp {
* @hcpriv: for use by HCD; typically holds hardware dma queue head (QH)
* with one or more transfer descriptors (TDs) per urb
* @ep_dev: ep_device for sysfs info
- * @ep_comp: companion descriptor information for this endpoint
+ * @ss_ep_comp: companion descriptor information for this endpoint
* @extra: descriptors following this endpoint in the configuration
* @extralen: how many bytes of "extra" are valid
* @enabled: URBs may be submitted to this endpoint
@@ -78,7 +78,7 @@ struct usb_host_endpoint {
struct list_head urb_list;
void *hcpriv;
struct ep_device *ep_dev; /* For sysfs info */
- struct usb_host_ep_comp *ep_comp; /* For SS devices */
+ struct usb_host_ss_ep_comp *ss_ep_comp; /* For SS devices */
unsigned char *extra; /* Extra descriptors */
int extralen;
diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index 9e9c5c0a3d72..93223638f702 100644
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -538,7 +538,7 @@ static inline int usb_endpoint_is_isoc_out(
/*-------------------------------------------------------------------------*/
/* USB_DT_SS_ENDPOINT_COMP: SuperSpeed Endpoint Companion descriptor */
-struct usb_ep_comp_descriptor {
+struct usb_ss_ep_comp_descriptor {
__u8 bLength;
__u8 bDescriptorType;
@@ -547,7 +547,7 @@ struct usb_ep_comp_descriptor {
__u16 wBytesPerInterval;
} __attribute__ ((packed));
-#define USB_DT_EP_COMP_SIZE 6
+#define USB_DT_SS_EP_COMP_SIZE 6
/*-------------------------------------------------------------------------*/
generated by cgit v1.2.3 (git 2.0.4) at 2025-10-31 07:41:07 +0000