4.11-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Martin Habets <mhab...@solarflare.com>


[ Upstream commit bb53f4d4f5116d3dae76bb12fb16bc73771f958a ]

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 <mhab...@solarflare.com>
Acked-by: Edward Cree <ec...@solarflare.com>
Acked-by: Bert Kenward bkenw...@solarflare.com
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/net/ethernet/sfc/ef10.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- a/drivers/net/ethernet/sfc/ef10.c
+++ b/drivers/net/ethernet/sfc/ef10.c
@@ -4171,7 +4171,7 @@ 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));
@@ -4319,7 +4319,7 @@ static int efx_ef10_filter_remove_intern
                        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);
                }
        }
@@ -4452,7 +4452,7 @@ static s32 efx_ef10_filter_rfs_insert(st
                                      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;
@@ -4939,7 +4939,7 @@ 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;


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