d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

hyperv/hn: Remove unnecessary zeroing out the netvsc_packet

Browse Source 
All used fields are setup one by one, so there is no need to zero
out this large struct.

While I'm here, move the stack variable near its usage.

Reviewed by:		adrian, delphij, Jun Su <junsu microsoft com>
Approved by:		adrian (mentor)
Sponsored by:		Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D4978
This commit is contained in:
sephe 2016-01-25 05:18:57 +00:00
parent 57b5318144
commit d90c6457ea
1 changed files with 1 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c
View File

@ -755,7 +755,6 @@ hn_start_locked(struct ifnet *ifp)
hn_softc_t *sc = ifp->if_softc;
struct hv_device *device_ctx = vmbus_get_devctx(sc->hn_dev);
netvsc_dev *net_dev = sc->net_dev;
netvsc_packet *packet;
struct ether_vlan_header *eh;
rndis_msg *rndis_mesg;
rndis_packet *rndis_pkt;
@ -775,6 +774,7 @@ hn_start_locked(struct ifnet *ifp)
bus_dma_segment_t segs[HN_TX_DATA_SEGCNT_MAX];
int error, nsegs, i, send_failed = 0;
struct hn_txdesc *txd;
netvsc_packet *packet;
struct mbuf *m_head;
IFQ_DRV_DEQUEUE(&ifp->if_snd, m_head);
@ -790,11 +790,7 @@ hn_start_locked(struct ifnet *ifp)
}
packet = &txd->netvsc_pkt;
/* XXX not necessary */
memset(packet, 0, sizeof(*packet));
packet->is_data_pkt = TRUE;
/* Initialize it from the mbuf */
packet->tot_data_buf_len = m_head->m_pkthdr.len;