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| author | Karsten Wiese <fzu@wemgehoertderstaat.de> | 2007-12-31 00:55:05 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-02-01 17:35:02 -0500 |
| commit | 3b6fcfd0664aeac6ae2fd1231f04b3ed24723c1e (patch) | |
| tree | 91f6bf59435039eefcd4a931bed274a0b33882f1 /Documentation/cdrom | |
| parent | 91bc4d31e81b15aa6e2d075307b8727041f2e2d1 (diff) | |
USB: ehci saves some memory in ISO transfer descriptors
In the EHCI driver, itd->usecs[8] is used in periodic_usecs(), indexed by
uframe. For an ITD's unused uframes it is 0, else it contains the same
value as itd->stream->usecs. To check if an ITD's uframe is used, we can
instead test itd->hw_transaction[uframe]: if used, it will be nonzero no
matter what endianess is used.
This patch replaces those two uses, eliminates itd->usecs[], and saves
eight bytes from each ITD.
Signed-off-by: Karsten Wiese <fzu@wemgehoertderstaat.de>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'Documentation/cdrom')
0 files changed, 0 insertions, 0 deletions