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authorParav Pandit <parav@nvidia.com>2023-01-23 06:55:11 +0300
committerDavid S. Miller <davem@davemloft.net>2023-01-25 12:27:13 +0300
commitd0671115869d19ec76d658c4bf86d3211a8ea121 (patch)
treeb7e67a81d29664367bed93e9ef6f2ee7124d5122 /net/smc
parent4373a023e0388fc19e27d37f61401bce6ff4c9d7 (diff)
downloadlinux-d0671115869d19ec76d658c4bf86d3211a8ea121.tar.xz
virtio-net: Reduce debug name field size to 16 bytes
virtio queue index can be maximum of 65535. 16 bytes are enough to store the vq name with the existing string prefix. With this change, send queue struct saves 24 bytes and receive queue saves whole cache line worth 64 bytes per structure due to saving in alignment bytes. Pahole results before: pahole -s drivers/net/virtio_net.o | \ grep -e "send_queue" -e "receive_queue" send_queue 1112 0 receive_queue 1280 1 Pahole results after: pahole -s drivers/net/virtio_net.o | \ grep -e "send_queue" -e "receive_queue" send_queue 1088 0 receive_queue 1216 1 Signed-off-by: Parav Pandit <parav@nvidia.com> Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/smc')
0 files changed, 0 insertions, 0 deletions