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Message-Id: <20190523181740.798196828@linuxfoundation.org>
Date:   Thu, 23 May 2019 21:06:50 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Tommi Rantala <tommi.t.rantala@...ia.com>,
        Stanislav Fomichev <sdf@...gle.com>,
        Sasha Levin <sashal@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>
Subject: [PATCH 4.19 111/114] Revert "selftests/bpf: skip verifier tests for unsupported program types"

From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

This reverts commit 118d38a3577f7728278f6afda8436af05a6bec7f which is
commit 8184d44c9a577a2f1842ed6cc844bfd4a9981d8e upstream.

Tommi reports that this patch breaks the build, it's not really needed
so let's revert it.

Reported-by: Tommi Rantala <tommi.t.rantala@...ia.com>
Cc: Stanislav Fomichev <sdf@...gle.com>
Cc: Sasha Levin <sashal@...nel.org>
Acked-by: Daniel Borkmann <daniel@...earbox.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 tools/testing/selftests/bpf/test_verifier.c |    9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

--- a/tools/testing/selftests/bpf/test_verifier.c
+++ b/tools/testing/selftests/bpf/test_verifier.c
@@ -32,7 +32,6 @@
 #include <linux/if_ether.h>
 
 #include <bpf/bpf.h>
-#include <bpf/libbpf.h>
 
 #ifdef HAVE_GENHDR
 # include "autoconf.h"
@@ -57,7 +56,6 @@
 
 #define UNPRIV_SYSCTL "kernel/unprivileged_bpf_disabled"
 static bool unpriv_disabled = false;
-static int skips;
 
 struct bpf_test {
 	const char *descr;
@@ -12772,11 +12770,6 @@ static void do_test_single(struct bpf_te
 	fd_prog = bpf_verify_program(prog_type ? : BPF_PROG_TYPE_SOCKET_FILTER,
 				     prog, prog_len, test->flags & F_LOAD_WITH_STRICT_ALIGNMENT,
 				     "GPL", 0, bpf_vlog, sizeof(bpf_vlog), 1);
-	if (fd_prog < 0 && !bpf_probe_prog_type(prog_type, 0)) {
-		printf("SKIP (unsupported program type %d)\n", prog_type);
-		skips++;
-		goto close_fds;
-	}
 
 	expected_ret = unpriv && test->result_unpriv != UNDEF ?
 		       test->result_unpriv : test->result;
@@ -12912,7 +12905,7 @@ static void get_unpriv_disabled()
 
 static int do_test(bool unpriv, unsigned int from, unsigned int to)
 {
-	int i, passes = 0, errors = 0;
+	int i, passes = 0, errors = 0, skips = 0;
 
 	for (i = from; i < to; i++) {
 		struct bpf_test *test = &tests[i];


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