Author: vmaffione
Date: Thu Aug 6 21:37:38 2020
New Revision: 363997
URL: https://svnweb.freebsd.org/changeset/base/363997
Log:
iflib: netmap: drop redundant check
The validity of head is already checked by nm_rxsync_prologue().
MFC after: 2 weeks
Modified:
head/sys/net/iflib.c
Modified: head/sys/net/iflib.c
==============================================================================
--- head/sys/net/iflib.c Thu Aug 6 21:32:25 2020 (r363996)
+++ head/sys/net/iflib.c Thu Aug 6 21:37:38 2020 (r363997)
@@ -1080,16 +1080,12 @@ iflib_netmap_rxsync(struct netmap_kring *kring, int fl
uint32_t nic_i; /* index into the NIC ring */
u_int n;
u_int const lim = kring->nkr_num_slots - 1;
- u_int const head = kring->rhead;
int force_update = (flags & NAF_FORCE_READ) || kring->nr_kflags &
NKR_PENDINTR;
if_ctx_t ctx = ifp->if_softc;
iflib_rxq_t rxq = &ctx->ifc_rxqs[kring->ring_id];
iflib_fl_t fl = &rxq->ifr_fl[0];
struct if_rxd_info ri;
-
- if (head > lim)
- return netmap_ring_reinit(kring);
/*
* netmap only uses free list 0, to avoid out of order consumption
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