diff options
| author | Mike Frysinger <vapier@gentoo.org> | 2010-07-27 18:35:10 -0400 |
|---|---|---|
| committer | Ben Warren <biggerbadderben@gmail.com> | 2010-08-09 11:52:30 -0700 |
| commit | ede16ea32da7a37f892bf63dcb43c16118ba39d6 (patch) | |
| tree | c3bf1533645b7f30824e8d2649f3ee46ad0dff6a | |
| parent | 0daac97801fa5989d3740487aa824fbab9ff0503 (diff) | |
miiphy: leverage current_mii cache more
For code that uses miiphy_{read,write}, every call invokes a full look up
of the mii list. There is already a "current_mii" cache that is used by
some code, but have the miiphy_{read,write} function use it as well. This
does increase the code size slightly, but I think it's worth it.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
| -rw-r--r-- | common/miiphyutil.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/common/miiphyutil.c b/common/miiphyutil.c index e055c08fbd..9cf845f605 100644 --- a/common/miiphyutil.c +++ b/common/miiphyutil.c @@ -162,6 +162,20 @@ const char *miiphy_get_current_dev(void) return NULL; } +static struct mii_dev *miiphy_get_active_dev(const char *devname) +{ + /* If the current mii is the one we want, return it */ + if (current_mii) + if (strcmp(current_mii->name, devname) == 0) + return current_mii; + + /* Otherwise, set the active one to the one we want */ + if (miiphy_set_current_dev(devname)) + return NULL; + else + return current_mii; +} + /***************************************************************************** * * Read to variable <value> from the PHY attached to device <devname>, @@ -175,7 +189,7 @@ int miiphy_read(const char *devname, unsigned char addr, unsigned char reg, { struct mii_dev *dev; - dev = miiphy_get_dev_by_name(devname, 0); + dev = miiphy_get_active_dev(devname); if (dev) return dev->read(devname, addr, reg, value); @@ -195,7 +209,7 @@ int miiphy_write(const char *devname, unsigned char addr, unsigned char reg, { struct mii_dev *dev; - dev = miiphy_get_dev_by_name(devname, 0); + dev = miiphy_get_active_dev(devname); if (dev) return dev->write(devname, addr, reg, value); |