summaryrefslogtreecommitdiff
path: root/drivers/w1
diff options
context:
space:
mode:
authorHelmut Schaa <helmut.schaa@googlemail.com>2011-04-18 13:34:01 (GMT)
committerJohn W. Linville <linville@tuxdriver.com>2011-04-19 19:39:59 (GMT)
commit9a8199961b22e61221a6114b8bbbc26ddcc243f7 (patch)
treed9f67618a5b73065a48d18424aa91a6022b48fd2 /drivers/w1
parent46a01ec00d05581c5bd0c37e680d5b37af4953b4 (diff)
downloadlinux-9a8199961b22e61221a6114b8bbbc26ddcc243f7.tar.xz
rt2x00: Optimize register access in rt2800pci
All register reads/writes in rt2800pci were previously done with rt2800_register_read/rt2800_register_write. These however indirectly call rt2x00pci_register_read/rt2x00pci_register_write which adds an additional overhead of at least one call and several move instructions to each register access. Replacing the calls to rt2800_register_read/rt2800_register_write with direct calls to rt2x00pci_register_read/rt2x00pci_register_write gets rid of quite a number of instructions in the drivers hotpaths (IRQ handling and txdone handling). For consistency replace all references to rt2800_register_read/write with the rt2x00pci_register_read/write variants. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/w1')
0 files changed, 0 insertions, 0 deletions