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SubjectRe: [PATCH net-next v2 1/3] net/ncsi: Fix several packet definitions
On Mon, Aug 14, 2017 at 10:59 AM, Samuel Mendoza-Jonas
<sam@mendozajonas.com> wrote:

I asked Sam if these should be backported to stable and he said:

> These are straight up bugs except... without my changes we never call
> this code. As Ben says as time provides a lot of the current definitions
> need to be gone over, there's a few command/response code paths that are
> never triggered and could be broken in similar ways.

So we're okay here.

> Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>

Reviewed-by: Joel Stanley <joel@jms.id.au>

Cheers,

Joel

> ---
> v2: Rebased on latest net-next
>
> net/ncsi/ncsi-cmd.c | 10 +++++-----
> net/ncsi/ncsi-pkt.h | 2 +-
> net/ncsi/ncsi-rsp.c | 3 ++-
> 3 files changed, 8 insertions(+), 7 deletions(-)
>
> diff --git a/net/ncsi/ncsi-cmd.c b/net/ncsi/ncsi-cmd.c
> index 5e03ed190e18..7567ca63aae2 100644
> --- a/net/ncsi/ncsi-cmd.c
> +++ b/net/ncsi/ncsi-cmd.c
> @@ -139,9 +139,9 @@ static int ncsi_cmd_handler_svf(struct sk_buff *skb,
> struct ncsi_cmd_svf_pkt *cmd;
>
> cmd = skb_put_zero(skb, sizeof(*cmd));
> - cmd->vlan = htons(nca->words[0]);
> - cmd->index = nca->bytes[2];
> - cmd->enable = nca->bytes[3];
> + cmd->vlan = htons(nca->words[1]);
> + cmd->index = nca->bytes[6];
> + cmd->enable = nca->bytes[7];
> ncsi_cmd_build_header(&cmd->cmd.common, nca);
>
> return 0;
> @@ -153,7 +153,7 @@ static int ncsi_cmd_handler_ev(struct sk_buff *skb,
> struct ncsi_cmd_ev_pkt *cmd;
>
> cmd = skb_put_zero(skb, sizeof(*cmd));
> - cmd->mode = nca->bytes[0];
> + cmd->mode = nca->bytes[3];
> ncsi_cmd_build_header(&cmd->cmd.common, nca);
>
> return 0;
> @@ -228,7 +228,7 @@ static struct ncsi_cmd_handler {
> { NCSI_PKT_CMD_AE, 8, ncsi_cmd_handler_ae },
> { NCSI_PKT_CMD_SL, 8, ncsi_cmd_handler_sl },
> { NCSI_PKT_CMD_GLS, 0, ncsi_cmd_handler_default },
> - { NCSI_PKT_CMD_SVF, 4, ncsi_cmd_handler_svf },
> + { NCSI_PKT_CMD_SVF, 8, ncsi_cmd_handler_svf },
> { NCSI_PKT_CMD_EV, 4, ncsi_cmd_handler_ev },
> { NCSI_PKT_CMD_DV, 0, ncsi_cmd_handler_default },
> { NCSI_PKT_CMD_SMA, 8, ncsi_cmd_handler_sma },
> diff --git a/net/ncsi/ncsi-pkt.h b/net/ncsi/ncsi-pkt.h
> index 3ea49ed0a935..91b4b66438df 100644
> --- a/net/ncsi/ncsi-pkt.h
> +++ b/net/ncsi/ncsi-pkt.h
> @@ -104,7 +104,7 @@ struct ncsi_cmd_svf_pkt {
> unsigned char index; /* VLAN table index */
> unsigned char enable; /* Enable or disable */
> __be32 checksum; /* Checksum */
> - unsigned char pad[14];
> + unsigned char pad[18];
> };
>
> /* Enable VLAN */
> diff --git a/net/ncsi/ncsi-rsp.c b/net/ncsi/ncsi-rsp.c
> index 087db775b3dc..c1a191d790e2 100644
> --- a/net/ncsi/ncsi-rsp.c
> +++ b/net/ncsi/ncsi-rsp.c
> @@ -354,7 +354,8 @@ static int ncsi_rsp_handler_svf(struct ncsi_request *nr)
>
> /* Add or remove the VLAN filter */
> if (!(cmd->enable & 0x1)) {
> - ret = ncsi_remove_filter(nc, NCSI_FILTER_VLAN, cmd->index);
> + /* HW indexes from 1 */
> + ret = ncsi_remove_filter(nc, NCSI_FILTER_VLAN, cmd->index - 1);
> } else {
> vlan = ntohs(cmd->vlan);
> ret = ncsi_add_filter(nc, NCSI_FILTER_VLAN, &vlan);
> --
> 2.14.0
>

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