Searched hist:"99132 b6e" (Results 1 – 3 of 3) sorted by relevance
| /openbmc/linux/net/ethtool/ |
| H A D | pause.c | 99132b6e Wed Jan 25 17:05:18 CST 2023 Jakub Kicinski <kuba@kernel.org> ethtool: netlink: handle SET intro/outro in the common code
Most ethtool SET callbacks follow the same general structure.
ethnl_parse_header_dev_get()
rtnl_lock()
ethnl_ops_begin()
... do stuff ...
ethtool_notify()
ethnl_ops_complete()
rtnl_unlock()
ethnl_parse_header_dev_put()
This leads to a lot of copy / pasted code an bugs when people
mis-handle the error path.
Add a generic implementation of this pattern with a .set callback
in struct ethnl_request_ops called to "do stuff".
Also add an optional .set_validate which is called before
ethnl_ops_begin() -- a lot of implementations do basic request
capability / sanity checking at that point.
Because we want to avoid generating the notification when
no change happened - adopt a slightly hairy return values:
- 0 means nothing to do (no notification)
- 1 means done / continue
- negative error codes on error
Reuse .hdr_attr from struct ethnl_request_ops, GET and SET
use the same attr spaces in all cases.
Convert pause as an example (and to avoid unused function warnings).
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| H A D | netlink.h | 99132b6e Wed Jan 25 17:05:18 CST 2023 Jakub Kicinski <kuba@kernel.org> ethtool: netlink: handle SET intro/outro in the common code
Most ethtool SET callbacks follow the same general structure.
ethnl_parse_header_dev_get()
rtnl_lock()
ethnl_ops_begin()
... do stuff ...
ethtool_notify()
ethnl_ops_complete()
rtnl_unlock()
ethnl_parse_header_dev_put()
This leads to a lot of copy / pasted code an bugs when people
mis-handle the error path.
Add a generic implementation of this pattern with a .set callback
in struct ethnl_request_ops called to "do stuff".
Also add an optional .set_validate which is called before
ethnl_ops_begin() -- a lot of implementations do basic request
capability / sanity checking at that point.
Because we want to avoid generating the notification when
no change happened - adopt a slightly hairy return values:
- 0 means nothing to do (no notification)
- 1 means done / continue
- negative error codes on error
Reuse .hdr_attr from struct ethnl_request_ops, GET and SET
use the same attr spaces in all cases.
Convert pause as an example (and to avoid unused function warnings).
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| H A D | netlink.c | 99132b6e Wed Jan 25 17:05:18 CST 2023 Jakub Kicinski <kuba@kernel.org> ethtool: netlink: handle SET intro/outro in the common code
Most ethtool SET callbacks follow the same general structure.
ethnl_parse_header_dev_get()
rtnl_lock()
ethnl_ops_begin()
... do stuff ...
ethtool_notify()
ethnl_ops_complete()
rtnl_unlock()
ethnl_parse_header_dev_put()
This leads to a lot of copy / pasted code an bugs when people
mis-handle the error path.
Add a generic implementation of this pattern with a .set callback
in struct ethnl_request_ops called to "do stuff".
Also add an optional .set_validate which is called before
ethnl_ops_begin() -- a lot of implementations do basic request
capability / sanity checking at that point.
Because we want to avoid generating the notification when
no change happened - adopt a slightly hairy return values:
- 0 means nothing to do (no notification)
- 1 means done / continue
- negative error codes on error
Reuse .hdr_attr from struct ethnl_request_ops, GET and SET
use the same attr spaces in all cases.
Convert pause as an example (and to avoid unused function warnings).
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
|