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author | Zhu Lingshan <lszhu@suse.com> | 2018-05-02 11:13:39 +0800 |
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committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-05-08 01:52:49 -0400 |
commit | 0e5aee393956f14b82c42486aefc327ba594ca60 (patch) | |
tree | 1f6badbe611fb70a196d11e9d3fa53b599578816 /drivers/powercap | |
parent | 9899e4d3523faaef17c67141aa80ff2088f17871 (diff) | |
download | op-kernel-dev-0e5aee393956f14b82c42486aefc327ba594ca60.zip op-kernel-dev-0e5aee393956f14b82c42486aefc327ba594ca60.tar.gz |
scsi: tcmu: add new netlink events helpers
Add new netlink events helpers tcmu_netlink_event_init() and
tcmu_netlink_event_send(). These new functions intend to replace
existing netlink events helper function tcmu_netlink_event().
The existing function tcmu_netlink_event() works well for events like
TCMU_ADDED_DEVICE and TCMU_REMOVED_DEVICE which only has one netlink
attribute. But if there is a command requires more than one attributes
to send out, we have to use a struct to adapt the paremeter
reconfig_data, it is hard to use one struct or a union in one struct to
adapt every command with different attributes, it may get long and ugly.
With the new two functions, we can call tcmu_netlink_event_init() to
initialize a netlink event, then add all attributes we need by using
nla_put_xxx(), at last use tcmu_netlink_event_send() to send it out. So
that we don't need to use a long struct or union if we want to send
mulitple attributes for different commands.
[mkp: typos]
Signed-off-by: Zhu Lingshan <lszhu@suse.com>
Acked-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/powercap')
0 files changed, 0 insertions, 0 deletions