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| author | Jarod Wilson <jwilson@redhat.com> | 2008-01-23 16:05:45 -0500 |
|---|---|---|
| committer | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2008-01-30 22:22:28 +0100 |
| commit | 8f9f963e5d9853dbc5fa5091f15ae64f423d3d89 (patch) | |
| tree | 7b12f078f358d88e846e9e6e8e9b271d1bcb3db5 /drivers/firewire | |
| parent | f8d2dc39389d6ccc0def290dc4b7eb71d68645a2 (diff) | |
| download | kernel_samsung_aries-8f9f963e5d9853dbc5fa5091f15ae64f423d3d89.zip kernel_samsung_aries-8f9f963e5d9853dbc5fa5091f15ae64f423d3d89.tar.gz kernel_samsung_aries-8f9f963e5d9853dbc5fa5091f15ae64f423d3d89.tar.bz2 | |
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>
Diffstat (limited to 'drivers/firewire')
| -rw-r--r-- | drivers/firewire/fw-transaction.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/firewire/fw-transaction.c b/drivers/firewire/fw-transaction.c index 8018c3b..7fcc59d 100644 --- a/drivers/firewire/fw-transaction.c +++ b/drivers/firewire/fw-transaction.c @@ -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; |