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author | Mikael Pettersson <mikpe@it.uu.se> | 2007-07-02 19:10:25 -0400 |
---|---|---|
committer | Jeff Garzik <jeff@garzik.org> | 2007-07-09 12:17:34 -0400 |
commit | 825cd6dd793770ebd42d9ca19f5ee7d082350317 (patch) | |
tree | 7d5c74490aab35cc2d6d505cd310d265d56e5604 | |
parent | 5f45bc50976ee1f408f7171af155aec646655a37 (diff) |
sata_sil24: sil24_interrupt() micro-optimisation
sil24_interrupt() loads host->ports[i] into a local variable,
validates it, and then loads the value again in the call to
sil24_host_intr(). This patch replaces the second load by a
reference to the local variable.
This is safe since no side-effects have occurred since the
initial load. It also improves readability since it makes
it clear that the parameter to sil24_host_intr() is the same
value which was just validated.
Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
-rw-r--r-- | drivers/ata/sata_sil24.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c index 0ddfae9911cd..14261f393c67 100644 --- a/drivers/ata/sata_sil24.c +++ b/drivers/ata/sata_sil24.c | |||
@@ -888,7 +888,7 @@ static irqreturn_t sil24_interrupt(int irq, void *dev_instance) | |||
888 | if (status & (1 << i)) { | 888 | if (status & (1 << i)) { |
889 | struct ata_port *ap = host->ports[i]; | 889 | struct ata_port *ap = host->ports[i]; |
890 | if (ap && !(ap->flags & ATA_FLAG_DISABLED)) { | 890 | if (ap && !(ap->flags & ATA_FLAG_DISABLED)) { |
891 | sil24_host_intr(host->ports[i]); | 891 | sil24_host_intr(ap); |
892 | handled++; | 892 | handled++; |
893 | } else | 893 | } else |
894 | printk(KERN_ERR DRV_NAME | 894 | printk(KERN_ERR DRV_NAME |