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net: dsa: mv88e6xxx: write MAC outside of ATU Get Next code

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There is no need to write the MAC address before every Get Next
operation, since ATU MAC registers are not cleared between calls.

Move the _mv88e6xxx_atu_mac_write call outside of _mv88e6xxx_atu_getnext
so future code could call ATU Get Next multiple times and save a few
register access.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vivien Didelot 2015-10-22 09:34:40 -04:00 committed by David S. Miller
parent 36d04ba127
commit b0e1a692ff
1 changed files with 5 additions and 6 deletions
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11
drivers/net/dsa/mv88e6xxx.c
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@ -1751,7 +1751,6 @@ int mv88e6xxx_port_fdb_del(struct dsa_switch *ds, int port,
}
static int _mv88e6xxx_atu_getnext(struct dsa_switch *ds, u16 fid,
const unsigned char *addr,
struct mv88e6xxx_atu_entry *entry)
{
struct mv88e6xxx_atu_entry next = { 0 };
@ -1763,10 +1762,6 @@ static int _mv88e6xxx_atu_getnext(struct dsa_switch *ds, u16 fid,
if (ret < 0)
return ret;
ret = _mv88e6xxx_atu_mac_write(ds, addr);
if (ret < 0)
return ret;
ret = _mv88e6xxx_reg_write(ds, REG_GLOBAL, GLOBAL_ATU_FID, fid);
if (ret < 0)
return ret;
@ -1827,7 +1822,11 @@ int mv88e6xxx_port_fdb_getnext(struct dsa_switch *ds, int port,
fid = vtu.fid;
}
ret = _mv88e6xxx_atu_getnext(ds, fid, addr, &next);
ret = _mv88e6xxx_atu_mac_write(ds, addr);
if (ret < 0)
goto unlock;
ret = _mv88e6xxx_atu_getnext(ds, fid, &next);
if (ret < 0)
goto unlock;