From: Igor Romanov <igor.romanov@oktetlabs.ru>
Date: Tue, 10 Mar 2020 09:48:37 +0000 (+0000)
Subject: net/sfc/base: reject automatic filter creation by users
X-Git-Url: http://git.droids-corp.org/?p=dpdk.git;a=commitdiff_plain;h=fbf423bbf2d298e4fc0e3f3a0d498ddb8bada94b

net/sfc/base: reject automatic filter creation by users

The automatic filter priority may only be used by filter implementation,
so reject the attempts to create such filters by client drivers.

Fixes: f9565517ff4f ("net/sfc/base: import filters support")
Cc: stable@dpdk.org

Signed-off-by: Igor Romanov <igor.romanov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
---

diff --git a/drivers/net/sfc/base/efx_filter.c b/drivers/net/sfc/base/efx_filter.c
index 575f6228be..36332a2801 100644
--- a/drivers/net/sfc/base/efx_filter.c
+++ b/drivers/net/sfc/base/efx_filter.c
@@ -93,8 +93,15 @@ efx_filter_insert(
 		goto fail2;
 	}
 
+	if (spec->efs_priority == EFX_FILTER_PRI_AUTO) {
+		rc = EINVAL;
+		goto fail3;
+	}
+
 	return (efop->efo_add(enp, spec, B_FALSE));
 
+fail3:
+	EFSYS_PROBE(fail3);
 fail2:
 	EFSYS_PROBE(fail2);
 fail1: