USB: ehci: qh/qtd cleanup comments

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Provide better comments about qh_completions() and QTD handling.
That code can be *VERY* confusing, since it's evolved over a few
years to cope with both hardware races and silicon quirks.

Remove two unlikely() annotations that match the GCC defaults
(and are thus pointless); add an "else" to highlight code flow.

This patch doesn't change driver behavior.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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David Brownell 2008-04-10 14:21:06 -07:00 • committed by Greg Kroah-Hartman

parent 6427f79953

commit a082b5c788

1 changed files with 40 additions and 10 deletions

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drivers/usb/host/ehci-q.c

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