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authorMathias Nyman <mathias.nyman@linux.intel.com>2021-01-29 15:00:22 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-01-29 14:16:50 +0100
commitb1adc42d440df3233255e313a45ab7e9b2b74096 (patch)
tree910a9086f8dd43621f9d402f082e364dbd0f0b74 /drivers/usb/host/xhci.h
parenta181030703df185c20a8eed2313beb1b0b025e0d (diff)
xhci: add xhci_get_virt_ep() helper
In several event handlers we need to find the right endpoint structure from slot_id and ep_index in the event. Add a helper for this, check that slot_id and ep_index are valid. Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20210129130044.206855-6-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci.h')
-rw-r--r--drivers/usb/host/xhci.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 123ccdd3fea5..a9862f1083ad 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -995,6 +995,7 @@ struct xhci_interval_bw_table {
unsigned int ss_bw_out;
};
+#define EP_CTX_PER_DEV 31
struct xhci_virt_device {
int slot_id;
@@ -1010,7 +1011,7 @@ struct xhci_virt_device {
struct xhci_container_ctx *out_ctx;
/* Used for addressing devices and configuration changes */
struct xhci_container_ctx *in_ctx;
- struct xhci_virt_ep eps[31];
+ struct xhci_virt_ep eps[EP_CTX_PER_DEV];
u8 fake_port;
u8 real_port;
struct xhci_interval_bw_table *bw_table;