Colin Percival c74415ed3b Skip setting the MTU in the netfront driver (xn# devices) if the new MTU ... is the same as the old MTU. In particular, on Amazon EC2 "T2" instances without this change, the network interface is reinitialized every 30 minutes due to the MTU being (re)set when a new DHCP lease is obtained, causing packets to be dropped, along with annoying syslog messages about the link state changing. As a side note, the behaviour this commit fixes was responsible for exposing the locking problems fixed via r318523 and r318631. Maintainers of other network interface drivers may wish to consider making the corresponding change; the handling of SIOCSIFMTU does not seem to exhibit a great deal of consistency between drivers. MFC after: 1 week		2017-06-02 07:03:31 +00:00
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balloon
blkback
blkfront	xen/blkfront: correctly detach a disk with active users	2017-05-19 08:11:15 +00:00
console
control	xenstore: fix suspension when using the xenstore device	2017-03-07 09:17:48 +00:00
debug
evtchn
gntdev	Remove unneeded include of vm_phys.h.	2017-04-17 16:51:04 +00:00
grant_table
netback	Don't initialize if_output to ether_output(), ether_ifattach() does it for	2017-03-24 01:23:07 +00:00
netfront	Skip setting the MTU in the netfront driver (xn# devices) if the new MTU	2017-06-02 07:03:31 +00:00
pci
pcifront	Convert PCIe Hot Plug to using pci_request_feature	2017-02-25 06:11:59 +00:00
privcmd	Remove unneeded include of vm_phys.h.	2017-04-17 16:51:04 +00:00
pvcpu
timer
xenpci
xenstore	xenstore: fix suspension when using the xenstore device	2017-03-07 09:17:48 +00:00