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| author | Julian Wiedmann <jwi@linux.vnet.ibm.com> | 2018-03-09 18:12:57 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-03-09 13:10:04 -0500 |
| commit | 37cf05d2fff52a8ad1ce977c2a485e91fe793162 (patch) | |
| tree | c8034e6bf66133a2bfb15b0102df5a69895c5cf2 /tools/perf/scripts/python | |
| parent | s390/qeth: pass correct length to header_ops->create() (diff) | |
| download | linux-37cf05d2fff52a8ad1ce977c2a485e91fe793162.tar.gz linux-37cf05d2fff52a8ad1ce977c2a485e91fe793162.zip | |
s390/qeth: allocate skb from NAPI cache
napi_alloc_skb() doesn't need to disable IRQs during the allocation,
and thus may save us a few cycles.
Doing so requires a small fix-up in the HiperTransport path, which
currently assumes a fixed NET_SKB_PAD headroom padding. napi_alloc_skb()
adds an additional NET_IP_ALIGN padding, so use the proper helper for
setting up the mac_header offset.
Use this opportunity to convert the non-NAPI path to netdev_alloc_skb(),
which means that skb->dev is now always set-up during allocation and
doesn't need to be assigned manually.
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions