Fix unused variable warning in if_re_netmap.h

With clang 15, the following -Werror warning is produced:

    sys/dev/netmap/if_re_netmap.h:179:8: error: variable 'n' set but not used [-Werror,-Wunused-but-set-variable]
            u_int n;
                  ^

The 'n' variable appears to have been a debugging aid that has never
been used for anything, so remove it.

MFC after:	3 days
This commit is contained in:
Dimitry Andric 2022-07-21 21:52:29 +02:00
parent 95204d7a63
commit 8bfedf5852

View file

@ -176,7 +176,6 @@ re_netmap_rxsync(struct netmap_kring *kring, int flags)
struct netmap_ring *ring = kring->ring;
u_int nm_i; /* index into the netmap ring */
u_int 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;
@ -236,7 +235,7 @@ re_netmap_rxsync(struct netmap_kring *kring, int flags)
nm_i = kring->nr_hwcur;
if (nm_i != head) {
nic_i = netmap_idx_k2n(kring, nm_i);
for (n = 0; nm_i != head; n++) {
while (nm_i != head) {
struct netmap_slot *slot = &ring->slot[nm_i];
uint64_t paddr;
void *addr = PNMB(na, slot, &paddr);