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| author | Alexandre Belloni <[email protected]> | 2018-04-24 16:09:04 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2018-04-25 16:59:42 +0000 |
| commit | 02a6efcab675fe32815d824837784c3f42a7d892 (patch) | |
| tree | ee3c114159c833e170a405be27cf86b44b34396c /net/tipc/node.c | |
| parent | Merge branch 'userns-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/... (diff) | |
| download | kernel-02a6efcab675fe32815d824837784c3f42a7d892.tar.gz kernel-02a6efcab675fe32815d824837784c3f42a7d892.zip | |
net: phy: allow scanning busses with missing phys
Some MDIO busses will error out when trying to read a phy address with no
phy present at that address. In that case, probing the bus will fail
because __mdiobus_register() is scanning the bus for all possible phys
addresses.
In case MII_PHYSID1 returns -EIO or -ENODEV, consider there is no phy at
this address and set the phy ID to 0xffffffff which is then properly
handled in get_phy_device().
Suggested-by: Andrew Lunn <[email protected]>
Signed-off-by: Alexandre Belloni <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'net/tipc/node.c')
0 files changed, 0 insertions, 0 deletions