net: sfp: do not probe SFP module before we're attached

Browse source

When we probe a SFP module, we expect to be able to call the upstream
device's module_insert() function so that the upstream link can be
configured.  However, when the upstream device is delayed, we currently
may end up probing the module before the upstream device is available,
and lose the module_insert() call.

Avoid this by holding off probing the module until the SFP bus is
properly connected to both the SFP socket driver and the upstream
driver.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

Russell King 2019-02-06 10:52:30 +00:00 • committed by David S. Miller

parent 27b4ad621e

commit b5bfc21af5

3 changed files with 25 additions and 9 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

drivers/net/phy/sfp-bus.c

View file

30

drivers/net/phy/sfp.c

View file

2

drivers/net/phy/sfp.h

View file