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xhci: fix sparse warning in xhci-trace.h

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This patch fixes the following sparse warnings:
drivers/usb/host/./xhci-trace.h:116:1: warning: cast to restricted __le32
drivers/usb/host/./xhci-trace.h:116:1: warning: cast to restricted __le32
drivers/usb/host/./xhci-trace.h:116:1: warning: restricted __le32 degrades to
integer
drivers/usb/host/./xhci-trace.h:116:1: warning: restricted __le32 degrades to
integer

by converting the field 'trb' of the trace buffer entry structure from array
with elements of type __le32 to an array with elements of type u8.
Into the trb array are copied the contents of the TRB that generated the event.
The trace-cmd tool with the help of plugin_xhci.py will use this field to
parse the TRB contents in a human readable way.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This commit is contained in:
Xenia Ragiadakou 2013-09-09 21:03:12 +03:00 committed by Sarah Sharp
parent f004669638
commit d20c722567
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/host/xhci-trace.h
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@ -116,7 +116,7 @@ DECLARE_EVENT_CLASS(xhci_log_event,
__field(u64, dma)
__field(u32, status)
__field(u32, flags)
__dynamic_array(__le32, trb, 4)
__dynamic_array(u8, trb, sizeof(struct xhci_generic_trb))
),
TP_fast_assign(
__entry->va = trb_va;