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authorVladimir Oltean <vladimir.oltean@nxp.com>2021-06-21 19:42:15 +0300
committerDavid S. Miller <davem@davemloft.net>2021-06-21 22:50:20 +0300
commita8986681ccada614a30df7248390780e7708a763 (patch)
tree8034667b4db5e55e09e1d935da7deb4856045c0d /net/dsa/switch.c
parent8674f8d310215d2bb7469b80e6cfccc044f717b3 (diff)
downloadlinux-a8986681ccada614a30df7248390780e7708a763.tar.xz
net: dsa: export the dsa_port_is_{user,cpu,dsa} helpers
The difference between dsa_is_user_port and dsa_port_is_user is that the former needs to look up the list of ports of the DSA switch tree in order to find the struct dsa_port, while the latter directly receives it as an argument. dsa_is_user_port is already in widespread use and has its place, so there isn't any chance of converting all callers to a single form. But being able to do: dsa_port_is_user(dp) instead of dsa_is_user_port(dp->ds, dp->index) is much more efficient too, especially when the "dp" comes from an iterator over the DSA switch tree - this reduces the complexity from quadratic to linear. Move these helpers from dsa2.c to include/net/dsa.h so that others can use them too. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dsa/switch.c')
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