> On Thu, 2022-12-01 at 10:56 +0100, Loic Poulain wrote: > > On Thu, 24 Nov 2022 at 08:47, <haozhe.chang@xxxxxxxxxxxx> wrote: > > > > > > From: haozhe chang <haozhe.chang@xxxxxxxxxxxx> > > > > > > wwan_port_fops_write inputs the SKB parameter to the TX callback of > > > the WWAN device driver. However, the WWAN device (e.g., t7xx) may > > > have an MTU less than the size of SKB, causing the TX buffer to be > > > sliced and copied once more in the WWAN device driver. > > > > > > This patch implements the slicing in the WWAN subsystem and gives > > > the WWAN devices driver the option to slice(by frag_len) or not. By > > > doing so, the additional memory copy is reduced. > > > > > > Meanwhile, this patch gives WWAN devices driver the option to > > > reserve > > > headroom in fragments for the device-specific metadata. > > > > > > Signed-off-by: haozhe chang <haozhe.chang@xxxxxxxxxxxx> > > > > Reviewed-by: Loic Poulain <loic.poulain@xxxxxxxxxx> > > I have submitted patch V6 to add a reviewer, do you have any other > suggestions about the patch? You normally don't need to resubmit a version just for adding review tags, as it is well tracked. You can see status of netdev changes from patchwork: https://patchwork.kernel.org/project/netdevbpf/list/?series=&submitter=207580&state=*&q=&archive=both&delegate= Regarding this change you should however resubmit for the net-next tree with appropriate subject since it is not a bug fix: https://www.kernel.org/doc/html/latest/process/maintainer-netdev.html?highlight=netdev#how-do-i-indicate-which-tree-net-vs-net-next-my-patch-should-be-in Then it should be picked by netdev maintainer(s). But note that we're currently in the Linux 6.2 merge window, so merging for net-next can be delayed until the mainline merge window is closed (and net-next open): https://www.kernel.org/doc/html/latest/process/maintainer-netdev.html?highlight=netdev#how-often-do-changes-from-these-trees-make-it-to-the-mainline-linus-tree Regards, Loic
