net: rtnetlink: rtnl_fill_statsinfo(): Permit non-EMSGSIZE error returns

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Obtaining stats for the IFLA_STATS_LINK_OFFLOAD_XSTATS nest involves a HW
access, and can fail for more reasons than just netlink message size
exhaustion. Therefore do not always return -EMSGSIZE on the failure path,
but respect the error code provided by the callee. Set the error explicitly
where it is reasonable to assume -EMSGSIZE as the failure reason.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Petr Machata 2022-03-02 18:31:19 +02:00 • committed by David S. Miller

parent 05415bccbb

commit 216e690631

1 changed files with 16 additions and 6 deletions

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net/core/rtnetlink.c

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