Re: [PATCHv3 0/5] netdev: Extract GenerateName/ReserveName as common functions

V2 here: https://www.redhat.com/archives/libvir-list/2020-December/msg00563.html Since V2: * Fix libxl driver for missing changing virNetDevMacVLanReserveName V1 here: https://www.redhat.com/archives/libvir-list/2020-December/msg00308.html Since V1: (1) Remove virNetDev[Lock|Unlock]GenName. Only *lastID* needs to be protected. Now we lock *lastID* inside virNetDevReserveName and virNetDevGenerateName, then lock and unlock functions are no longer needed. (2) Shorten the locking range for generating names for tap and macvlan. Since virNetDevReserveName and virNetDevGenerateName are now with lock, we can call them directly rather than adding lock outside. (3) Rename *_GEN_NAME_TAP to *_GEN_NAME_VNET. (4) Now veth and tap share the same prefix "vnet". (5) Use name rather than type as the argument of virNetDevReserveName. Just follow the style of virNetDev[Tap|MacVlan]ReserveName. (6) Remove those in-between functions for tap and macvlan. (7) Remove useless ENUM_[DECL|IMPL] for enum virNetDevGenNameType. (8) Remove the *_NONE item for enum virNetDevGenNameType. (9) Remove useless <math.h> in virnetdevtap. (10) When @ifname of virNetDevGenerateName is NOT a template or NULL, just leave it unchanged. (11) Take advantage of the "g_strdup_printf(*ifname, id)" in virNetDevGenerateName, prevent the functions that call virNetDevTapCreate() from adding in "vnet%d" when ifname is empty. (12) Use VIR_NETDEV_MACVLAN_CREATE_WITH_TAP to distinguish macvtap and macvlan and remove those useless macros. Shi Lei (5): netdev: Introduce several helper functions for generating unique netdev name netdevtap: Use common helper function to create unique tap name netdevmacvlan: Use helper function to create unique macvlan/macvtap name netdevveth: Simplify virNetDevVethCreate by using virNetDevGenerateName netdev: Prevent functions that call virNetDevTapCreate from adding 'vnet%d' into ifname

src/bhyve/bhyve_command.c | 3 +- src/conf/domain_conf.c | 4 +- src/interface/interface_backend_udev.c | 2 +- src/libvirt_private.syms | 4 +- src/libxl/libxl_driver.c | 2 +- src/lxc/lxc_process.c | 5 +- src/qemu/qemu_interface.c | 16 +-- src/qemu/qemu_process.c | 4 +- src/util/virnetdev.c | 116 ++++++++++++++++ src/util/virnetdev.h | 27 +++- src/util/virnetdevmacvlan.c | 177 +++---------------------- src/util/virnetdevmacvlan.h | 14 +- src/util/virnetdevtap.c | 100 +------------- src/util/virnetdevtap.h | 4 - src/util/virnetdevveth.c | 140 +++++-------------- 15 files changed, 218 insertions(+), 400 deletions(-)