> Variable length arrays are extension not required in C standard
> and not available in Windows.
> Use alloca() instead of variable length array.
>
> Signed-off-by: Stephen Hemminger <[email protected]>
> ---
> lib/bpf/bpf_pkt.c | 12 ++++++------
> 1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/lib/bpf/bpf_pkt.c b/lib/bpf/bpf_pkt.c
> index 087ac0f244..5007f6aef5 100644
> --- a/lib/bpf/bpf_pkt.c
> +++ b/lib/bpf/bpf_pkt.c
> @@ -163,7 +163,7 @@ apply_filter(struct rte_mbuf *mb[], const uint64_t rc[],
> uint32_t num,
> uint32_t drop)
> {
> uint32_t i, j, k;
> - struct rte_mbuf *dr[num];
> + struct rte_mbuf **dr = alloca(num * sizeof(struct rte_mbuf *));
>
> for (i = 0, j = 0, k = 0; i != num; i++) {
>
> @@ -192,8 +192,8 @@ pkt_filter_vm(const struct rte_bpf *bpf, struct rte_mbuf
> *mb[], uint32_t num,
> uint32_t drop)
> {
> uint32_t i;
> - void *dp[num];
> - uint64_t rc[num];
> + void **dp = alloca(num * sizeof(void *));
> + uint64_t *rc = alloca(num * sizeof(uint64_t));
>
> for (i = 0; i != num; i++)
> dp[i] = rte_pktmbuf_mtod(mb[i], void *);
> @@ -208,7 +208,7 @@ pkt_filter_jit(const struct rte_bpf_jit *jit, struct
> rte_mbuf
> *mb[],
> {
> uint32_t i, n;
> void *dp;
> - uint64_t rc[num];
> + uint64_t *rc = alloca(num * sizeof(uint64_t));
>
> n = 0;
> for (i = 0; i != num; i++) {
> @@ -227,7 +227,7 @@ static inline uint32_t
> pkt_filter_mb_vm(const struct rte_bpf *bpf, struct rte_mbuf *mb[], uint32_t
> num,
> uint32_t drop)
> {
> - uint64_t rc[num];
> + uint64_t *rc = alloca(num * sizeof(uint64_t));
>
> rte_bpf_exec_burst(bpf, (void **)mb, rc, num);
> return apply_filter(mb, rc, num, drop);
> @@ -238,7 +238,7 @@ pkt_filter_mb_jit(const struct rte_bpf_jit *jit, struct
> rte_mbuf *mb[],
> uint32_t num, uint32_t drop)
> {
> uint32_t i, n;
> - uint64_t rc[num];
> + uint64_t *rc = alloca(num * sizeof(uint64_t));
>
> n = 0;
> for (i = 0; i != num; i++) {
> --
Acked-by: Konstantin Ananyev <[email protected]>
> 2.51.0
