sfc: Fix MCDI command size for filter operations

The 8000 series adapters uses catch-all filters for encapsulated traffic
to support filtering VXLAN, NVGRE and GENEVE traffic.
This new filter functionality requires a longer MCDI command.
This patch increases the size of buffers on stack that were missed, which
fixes a kernel panic from the stack protector.

Fixes: 9b41080125176 ("sfc: insert catch-all filters for encapsulated traffic")
Signed-off-by: Martin Habets <mhabets@solarflare.com>
Acked-by: Edward Cree <ecree@solarflare.com>
Acked-by: Bert Kenward bkenward@solarflare.com
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c
index 78efb2822b8648c6e6f02ffa764aad89570ffbd0..a8089667fc5b8a018773d85e50d2d5d41384d435 100644 (file)
--- a/drivers/net/ethernet/sfc/ef10.c
+++ b/drivers/net/ethernet/sfc/ef10.c
@@ -4172,7 +4172,7 @@ found:
         * recipients
         */
        if (is_mc_recip) {
-               MCDI_DECLARE_BUF(inbuf, MC_CMD_FILTER_OP_IN_LEN);
+               MCDI_DECLARE_BUF(inbuf, MC_CMD_FILTER_OP_EXT_IN_LEN);
                unsigned int depth, i;
 
                memset(inbuf, 0, sizeof(inbuf));
@@ -4320,7 +4320,7 @@ static int efx_ef10_filter_remove_internal(struct efx_nic *efx,
                        efx_ef10_filter_set_entry(table, filter_idx, NULL, 0);
                } else {
                        efx_mcdi_display_error(efx, MC_CMD_FILTER_OP,
-                                              MC_CMD_FILTER_OP_IN_LEN,
+                                              MC_CMD_FILTER_OP_EXT_IN_LEN,
                                               NULL, 0, rc);
                }
        }
@@ -4453,7 +4453,7 @@ static s32 efx_ef10_filter_rfs_insert(struct efx_nic *efx,
                                      struct efx_filter_spec *spec)
 {
        struct efx_ef10_filter_table *table = efx->filter_state;
-       MCDI_DECLARE_BUF(inbuf, MC_CMD_FILTER_OP_IN_LEN);
+       MCDI_DECLARE_BUF(inbuf, MC_CMD_FILTER_OP_EXT_IN_LEN);
        struct efx_filter_spec *saved_spec;
        unsigned int hash, i, depth = 1;
        bool replacing = false;
@@ -4940,7 +4940,7 @@ not_restored:
 static void efx_ef10_filter_table_remove(struct efx_nic *efx)
 {
        struct efx_ef10_filter_table *table = efx->filter_state;
-       MCDI_DECLARE_BUF(inbuf, MC_CMD_FILTER_OP_IN_LEN);
+       MCDI_DECLARE_BUF(inbuf, MC_CMD_FILTER_OP_EXT_IN_LEN);
        struct efx_filter_spec *spec;
        unsigned int filter_idx;
        int rc;