]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
qed: Fix possible race for the link state value.
authorSudarsana Reddy Kalluru <sudarsana.kalluru@cavium.com>
Thu, 19 Jul 2018 05:50:03 +0000 (22:50 -0700)
committerDavid S. Miller <davem@davemloft.net>
Sat, 21 Jul 2018 23:19:04 +0000 (16:19 -0700)
commit58874c7b246109d8efb2b0099d1aa296d6bfc3fa
treed0d70a87e75d0fae4f91c8ab573d71bbb9913836
parent4ad95a93a702ec4f4fb5159b822797ba67b8cbbe
qed: Fix possible race for the link state value.

There's a possible race where driver can read link status in mid-transition
and see that virtual-link is up yet speed is 0. Since in this
mid-transition we're guaranteed to see a mailbox from MFW soon, we can
afford to treat this as link down.

Fixes: cc875c2e ("qed: Add link support")
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/qlogic/qed/qed_mcp.c