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When a DSA port is added to a bridge and brought up, the resulting STP state programmed into the hardware depends on the order that these operations are performed. However, the Linux bridge code believes that the port is in disabled mode. If the DSA port is first added to a bridge and then brought up, it will be in blocking mode. If it is brought up and then added to the bridge, it will be in disabled mode. This difference is caused by DSA always setting the STP mode in dsa_port_enable() whether or not this port is part of a bridge. Since bridge always sets the STP state when the port is added, brought up or taken down, it is unnecessary for us to manipulate the STP state. Apparently, this code was copied from Rocker, and the very next day a similar fix for Rocker was merged but was not propagated to DSA. See |
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| .. | ||
| dsa.c | ||
| dsa2.c | ||
| dsa_priv.h | ||
| Kconfig | ||
| legacy.c | ||
| Makefile | ||
| master.c | ||
| port.c | ||
| slave.c | ||
| switch.c | ||
| tag_brcm.c | ||
| tag_dsa.c | ||
| tag_edsa.c | ||
| tag_gswip.c | ||
| tag_ksz.c | ||
| tag_lan9303.c | ||
| tag_mtk.c | ||
| tag_qca.c | ||
| tag_trailer.c | ||