diff options
author | Claudiu Manoil <[email protected]> | 2019-05-21 19:52:55 +0300 |
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committer | David S. Miller <[email protected]> | 2019-05-22 12:08:43 -0700 |
commit | 40a1578d631a8ac1cf0ef797c435114107747859 (patch) | |
tree | 9d53e1ae9ea1efb170babf1d107f9246ac53cdff /tools/perf/scripts/python/syscall-counts.py | |
parent | 7dc2bccab0ee37ac28096b8fcdc390a679a15841 (diff) |
ocelot: Dont allocate another multicast list, use __dev_mc_sync
Doing kmalloc in atomic context is always an issue,
more so for a list that can grow significantly.
Turns out that the driver only uses the duplicated
list of multicast mac addresses to keep track of
what addresses to delete from h/w before committing
the new list from kernel to h/w back again via set_rx_mode,
every time this list gets updated by the kernel.
Given that the h/w knows how to add and delete mac addresses
based on the mac address value alone, __dev_mc_sync should be
the much better choice of kernel API for these operations
avoiding the considerable overhead of maintaining a duplicated
list in the driver.
Signed-off-by: Claudiu Manoil <[email protected]>
Tested-by: Alexandre Belloni <[email protected]>
Acked-by: Alexandre Belloni <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions