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| author | Vivien Didelot <vivien.didelot@gmail.com> | 2019-08-19 16:00:49 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-08-20 12:33:49 -0700 |
| commit | 74be4babe72fd1ed1bba6b52d0bdc0d1e13f7af8 (patch) | |
| tree | 1e0bf529fdcd8013cc0c88fcd214002e0587ca04 /drivers/net/dsa/bcm_sf2.c | |
| parent | 955222ca5281ee7ded6b899605c055b147a15c73 (diff) | |
| download | lwn-74be4babe72fd1ed1bba6b52d0bdc0d1e13f7af8.tar.gz lwn-74be4babe72fd1ed1bba6b52d0bdc0d1e13f7af8.zip | |
net: dsa: do not enable or disable non user ports
The .port_enable and .port_disable operations are currently only
called for user ports, hence assuming they have a slave device. In
preparation for using these operations for other port types as well,
simply guard all implementations against non user ports and return
directly in such case.
Note that bcm_sf2_sw_suspend() currently calls bcm_sf2_port_disable()
(and thus b53_disable_port()) against the user and CPU ports, so do
not guards those functions. They will be called for unused ports in
the future, but that was expected by those drivers anyway.
Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa/bcm_sf2.c')
| -rw-r--r-- | drivers/net/dsa/bcm_sf2.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c index 49f99436018a..4f839348011d 100644 --- a/drivers/net/dsa/bcm_sf2.c +++ b/drivers/net/dsa/bcm_sf2.c @@ -157,6 +157,9 @@ static int bcm_sf2_port_setup(struct dsa_switch *ds, int port, unsigned int i; u32 reg; + if (!dsa_is_user_port(ds, port)) + return 0; + /* Clear the memory power down */ reg = core_readl(priv, CORE_MEM_PSM_VDD_CTRL); reg &= ~P_TXQ_PSM_VDD(port); |