Commit 8f9f963e authored Jan 23, 2008 by Jarod Wilson Committed by Stefan Richter Jan 30, 2008

firewire: replace subtraction with bitwise and



Replace an unnecessary subtraction with a bitwise AND when determining the
value of ext_tcode in fw_fill_transaction() to save a cpu cycle or two in a
somewhat critical path.

Signed-off-by: Jarod Wilson <jwilson@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

parent f8d2dc39

drivers/firewire/fw-transaction.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -153,7 +153,7 @@ fw_fill_request(struct fw_packet *packet, int tcode, int tlabel,
		int ext_tcode;

		if (tcode > 0x10) {
		ext_tcode = tcode - 0x10;
		ext_tcode = tcode & ~0x10;
		tcode = TCODE_LOCK_REQUEST;
		} else
		ext_tcode = 0;