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(parent: 5ef68c5) | patch
usb: dwc3: switch trb enqueue/dequeue and first_trb_index to u8
authorFelipe Balbi <felipe.balbi@linux.intel.com>
Tue, 5 Apr 2016 09:42:15 +0000 (12:42 +0300)
committerFelipe Balbi <felipe.balbi@linux.intel.com>
Mon, 18 Apr 2016 12:23:49 +0000 (15:23 +0300)
commitc28f82595dde97dda0b769f78f0faea78acd993b
tree05f7efc2fc0731cb1f5dc382a9439aa2aa2696fdtree | snapshot
parent5ef68c56e169a9249b94645a9ea9ca8d14672d26commit | diff
usb: dwc3: switch trb enqueue/dequeue and first_trb_index to u8

We *know* that we have 1 PAGE (4096 bytes) for our
TRB poll. We also know the size of each TRB and know
that we can fit 256 of them in one PAGE. By using a
u8 type we can make sure that:

enqueue++ % 256;

gets optimized to an increment only.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
drivers/usb/dwc3/core.h diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git